Abstract: The present invention relates to a geogrid, a non-woven or woven fabric and a strapping band, methods for their preparation and their use.

Abstract: Geocells for moderate to low load applications are disclosed here. The geocells have a cell wall thickness of from 0.25 mm to 0.95 mm. They have a wall strength of from 3500 N/m to 15000 N/m.

Abstract: Geocells for moderate to low load applications are disclosed here. The geocells have a cell wall thickness of from 0.25 mm to 0.95 mm. They have a wall strength of from 3500 N/m to 15000 N/m.

Abstract: A manufactured composite comprising synthetic turf and impermeable geomembrane is used in a single-layer capping system as the single layer to provide permanent, impermeable and functional aesthetic cover for land reclamation. During installation of composite pieces at a job site, an edge portion of a tufted section of a second composite piece is overlaid onto an edge untufted section of the first composite piece already laid and anchored over foundation soil to form a reinforced overlapping seam, through which the two composite pieces are physically and permanently joined together. As composite pieces are joined together, the continuity of synthetic grass and the continuity of impermeability are extended and realized over the entire site to form permanent, impermeable and functional aesthetic cover for land reclamation.

Abstract: A turf reinforcement mat comprises at least one polymer net layer; a non-woven mat comprising a plurality of multi-dimensional polymer fibers; and, a polymer yarn, stitching the net layer to the non-woven mat. A method for erosion control and revegetation facilitation comprises providing a turf reinforcement mat comprising at least one polymer net layer; a non-woven mat comprising a plurality of multi-dimensional polymer fibers; and, a polymer yarn, stitching the net layer to the non-woven mat; laying the turf reinforcement mat on a section of ground to be reinforced; securing the turf reinforcement mat to the ground; distributing soil and seed onto the turf reinforcement mat such that the section of ground is quickly revegetated and thereby protected from further erosion.

Abstract: A method for reinforcing an ecological greening fabric, including steps of: forming a trench (2) in an area to be afforested; laying a first ecological fabric (3) on the surface (1) of the area and in the trench (2); refilling a first soil layer (4) in the trench (2) to press the first ecological fabric (3); and fastening a second ecological fabric (5) on the first soil layer (4) to hold the first soil layer (4) by the second ecological fabric (5), so that the first and second ecological fabrics (4) and (5) in the trench (2) and the trench (2) jointly form a bag structure for fixing the first the soil layer (4). A structure for reinforcing an ecological greening fabric is also disclosed.

Abstract: A silt fence support base comprised of a porous casting made of stone, cement and water, and having a half-moon shape. Each casting may have one or more openings for the insertion of posts, which provide a frame for holding porous, filter material. Silt fence filtering material may be anchored under the bases.

Abstract: An geotextile silt fence has an increasing permittivity with increase in height thereby allowing larger storm events to flow through the fence without overtopping. A stiffening device is provided at the top of the silt fence to reduce sagging and improper overtopping. This stiffening device may be a mono-directional extruded geogrid structure that is a higher mil thickness than the geotextile monofilament structure of the silt fence and which is affixed to the geotextile continuously throughout the silt fence length. An overflow preferential pathway may be provided at the top of the silt fence through large voids within the geogrid providing controlled overflow of impounded water which mitigates structural failure of the silt by eliminating the typical overtopping failure mechanism.

Abstract: An elongated web of flexible material having a covering of excelsior across a portion thereof has an elongated edge portion uncovered. The elongated covered portion is folded over upon itself a number of times, and the elongated uncovered side portion (a tail) are wound upon a roll for utilization after unrolling, as a sediment barrier, properly staked into the ground.

Abstract: A crimped connection system and methods for use in connection with the construction of earth walls is disclosed. A grid-type soil mat may be provided with a number of crimped ends. The crimped ends may be adapted for engagement through the use of a locking member with another soil mat or with a plurality of anchors partially embedded within a precast concrete panel. The plurality of anchors may be formed as part of a gang or unitary structure to facilitate alignment of the anchors when being cast into the precast concrete panels.

Abstract: To provide rock fall prevention structure and rock fall prevention method capable of preventing the collapse of surface layer and preventing the falling of identified rock masses. Slope 1 is covered with a net assembly 2 constructed of rope materials 3 and 4 combined in intersectional directions and a wire net connected thereto. The rope materials 3 and 4 of the net assembly 2 are anchored into slope 1 using anchors 6. The anchors 6 are inserted into slope 1 to stabilize a surface layer of the slope 1, giving the anchors 6 and the net assembly 2 a strength able to suppress the movement of identified rock masses 22 at slope 1. Using the anchors 6 will be able to prevent the surface layer of slope 1 from collapsing and at the same time, using the anchors 6 and the net assembly 2 will be able to suppress the movement and falling of the identified rock masses 22 at slope 1.

Abstract: A cellular confinement system for soil, sand or other filler material comprises a number of sub-assemblies each made up of a plurality of interconnected open cells of fabric material. The sub-assemblies are stackable one on top of the other to provide a structure having at least one generally vertical side or end wall. The system further comprises sealing means such as one or more skirt portion(s) which are arranged between vertically juxtaposed sub-assemblies in use. The skirt portions substantially prevent or minimize the escape of finer aggregate material from between the stacked sub-assemblies.

Abstract: A load-bearing mat includes longitudinal tire members and transverse tire members that are interwoven and secured at their ends via fasteners. Typically, the longitudinal tire members and transverse tire members are constructed from the treads of tires. The load-bearing mat may include lifting cables to facilitate transportation, installation, and removal. The load-bearing mat may be used to protect turf areas or soft soil from heavy vehicles or loads.

Abstract: Slope surfaces of land can be eroded by rain and wind. It is necessary to vegetate a bared slope surface of land for the purpose of erosion control and environmental conservation. The present invention provides a vegetation base soil composition and a method of growing vegetation on a sloped surface for erosion control and vegetating on cut rock slope surface, such as weathered rock surface and barren soil surface. The vegetation base soil includes peat, bio-solids formed by the treatment of urban sewage, for example water treatment plant sediment, woodchip, bark, animal waste compost and clay or loam. The vegetation base soil with a microbes active material, a root activation fertilizer, an adhesive material and seeds are applied over a mesh that is secured over the sloped surface. Plants are grown in the layer of vegetation base soil.

Abstract: The bag has a trapezoidal shape including a pair of parallel edges opposite each other with one longer than the other and a pair of opposite diverging edges. One edge of the bag is defined by a fold to close off an opening providing access into the bag. Other edges of the bag are formed by a seam joining two opposite layers of flexible material together. The opening is preferably provided on a flap which extends beyond the trapezoidal perimeter of the bag. When this flap is folded over, the final trapezoidal shape for the bag is provided. Walls are built utilizing a plurality of such trapezoidally shaped sandbags in alternating parallel orientations for the long edges and short edges of adjacent bags. Joints between adjacent sandbags are longer than with rectangular sandbags and interlock together somewhat.

Abstract: A system and method are provided for increasing the width of an existing roadway. The system incorporates a reverse-oriented retaining wall and soil nail supports. The retaining wall is formed by a first set of soil nails, wire mesh material, and one or more geotextile material layers. An alternate embodiment forms the retaining wall with a plurality of concrete blocks stacked and spaced to form a block wall. The blocks are mounted over the first set of nails and can be filled with mortar. Backfill material fills a gap between the existing sloping surface and the retaining wall. A second set of soil nails can be provided for additional subsurface support. An upper surface of the backfill material can be paved to form the extended roadway width.

Abstract: The present invention relates to a method of manufacturing watercourse blocks continuously arranged in the construction spot, which continuously arranges the watercourse blocks according to the construction spot by preparing iron bar grates to be orthogonal to each other inside molding frames that are continuously arranged, casting concrete, preventing moisture evaporation and frost damage and employing iron bar grates so that the watercourse blocks continuously arranged according to the construction spot can be manufactured and constructed on the spot. Therefore, works for manufacturing the watercourse blocks in a plant and then assembling or fixing them in the construction spot according to the related art can be reduced as much as possible, the watercourse blocks can be simply manufactured and constructed on the spot to reduce a manufacturing cost and a construction time, which can thus significantly reduce the prime cost of the construction cost and diminish accident risk.

Abstract: A geocomposite for positioning under a geomembrane comprising at least one first geotextile covered by at least one second geotextile at least one electrically conductive textile being positioned between the second geotextile and the first geotextile. The conductive textile having a module for connecting to a phase of an electric generator. The geocomposite being in the form of one or several strips at the edges of which the second geotextile, the first geotextile and the electrically conductive textile are separate from each other, the geocomposite comprising perforated ringed mini-drains positioned parallel with each other on the first geotextile and covered with the second geotextile.

Abstract: A hardening agent deployment device comprising: a main malleable pouch having at least two layers of water permeable material having a planar configuration and a pore size capable of retaining a hardening agent, the main malleable pouch formed by a first outer layer of water permeable material having the planar configuration and the pore size capable of retaining the hardening agent, and a second outer layer of water permeable material having the planar configuration and having the pore size capable of retaining the hardening agent, wherein the first outer layer of water permeable material and the second outer layer of water permeable material are affixed to each other forming the main malleable pouch; a structural support component enclosed within the main malleable pouch; and the hardening agent enclosed within the main malleable pouch, wherein the hardening agent hardens when coming in contact with water.

Abstract: A three-dimensional netted vegetation blanket with upright loops is manufactured by mechanically weaving a plurality of longitudinal, transverse, and loop-forming threads. The transverse threads are woven into a plurality of horizontal net bodies having a predetermined thickness and presenting a plurality of interlocked double-ply rings. The longitudinal threads are twisted threads having a predetermined strength, and are extended through the horizontal net bodies. The loop-forming threads are upward and downward extended through the interlocked rings of the horizontal net bodies to form a plurality of upright loops over any two parallelly adjacent horizontal net bodies, so as to give the netted vegetation blanket an enhanced structural strength and provide a 3D growing space for vegetation seeds. The 3D netted vegetation blanket has high void ratio to advantageously grow seeds and support seedlings, and thereby provides good effect in soil and water conservation as well as vegetation engineering works.

Abstract: A reinforcing element for geo-technical applications may include a monolithic net structure made of a plastic material, having a plurality of first elements distanced from one another and having an elongate conformation in a respective prevalent development direction, a plurality of second elements distanced from one another and also having an elongate conformation, which develop substantially in a transversal direction to the first elements. The second elements are stretched along a development thereof, and the second elements are configured such that the net structure exhibits a substantially arched profile and forms a longitudinal seating having an axis of extension substantially parallel to the first elements. A process of manufacturing the reinforcing element and an artificial or partially artificial structure obtained by consolidating the terrain using the reinforcing element are also described.

Abstract: A reinforcing element for geo-technical applications may include a monolithic net structure made of a plastic material, having a plurality of first elements distanced from one another and having an elongate conformation in a respective prevalent development direction, a plurality of second elements distanced from one another and also having an elongate conformation, which develop substantially in a transversal direction to the first elements. The second elements are stretched along a development thereof, and the second elements are configured such that the net structure exhibits a substantially arched profile and forms a longitudinal seating having an axis of extension substantially parallel to the first elements. A process of manufacturing the reinforcing element and an artificial or partially artificial structure obtained by consolidating the terrain using the reinforcing element are also described.

Abstract: An open mat system to reinforce turf includes an anchor arrangement to help secure the mat to the turf. The anchor arrangement includes an anchor head embedded in the earth, a cable connected to the anchor head, a cable connector device, and a brace. The cable is inserted into the connector device, which holds the cable against withdrawal from the connector device. The brace includes a receiver, in which the cable connector device is removably oriented in the receiver.

Abstract: A system for reinforcing and facing a wall comprises a plurality of facing baskets and corresponding substantially horizontal reinforcing members, arranged in a plurality of layers. An impermeable membrane is positioned to uninterruptedly span two or more layers. At each of one or more layers, different portions of the impermeable membrane are positioned (a) between the substantially horizontal portion of the facing basket and the bottom surface of the corresponding reinforcing member, (b) around the outer end of the corresponding reinforcing member, (c) along the top surface of the substantially horizontal portion of the facing basket, and (d) angled upward toward an adjacent layer.

Abstract: A synthetic ground cover system for erosion control to be placed atop the ground, including a synthetic grass which comprises a composite of one or more geo-textiles tufted with synthetic yarns. The synthetic ground cover also includes a sand/soil infill ballast applied to the synthetic grass and a binding agent applied to the sand/soil infill to stabilize the sand/soil infill against high velocity water shear forces.

Abstract: A system and method are disclosed for the treatment of liquid runoff, such as rainfall, irrigation, and waste or produced water, utilizing aboveground, modular, permeable barriers containing reactive media that can immobilize particular solutes of concern, removing them from the liquid runoff. The modular design allows construction of a relatively-uniform barrier, or media volume, that is self-supporting and easily assembled, maintained, modified, and augmented. A permeable reactive barrier constructed according to the present invention provides significant contact between the reactive media and the solutes of concern while allowing the runoff stream to flow through the structure relatively unimpeded.

Abstract: An earth fill retaining wall system that uses a removable L-shaped bracket and one or more support boards that temporarily holds the front surface of a mesh cover panel vertical aligned while backfilled with fill material. The brackets hold the mesh cover panel until tiers are stacked above. The weight of the stack tiers are used to hold the mesh cover panel on each lower tier in place. Once the above stacked tiers are formed, the brackets can be removed and reused. Attached to the lower end of the post and extending in the opposite direction of the base is an optional support shoe. A hole is formed in the shoe that receives a vertical stake or pin driven into the ground to temporarily hold the bracket in place. Attached to the post is a loop that attaches to a chain or cable used to pull the bracket forward.

Abstract: A method utilizing a device capable of mounting an anchoring pin and then inserting the pin into the ground or other penetrable surface includes a hand-graspable elongate handle having an upper under and a lower end and a magnetic puck assembly fixed to the handle lower end for picking up an anchoring pin and maintaining in an insertion position until the pin is inserted into the ground. The method can be used to insert marker pins, or pins for retaining materials on a surface, such as the surface of an erodable waterway.

Abstract: A sheet-like element for reinforcing, separating and draining large structures such as road embankments. The element includes a sheet-like body which has a lattice like configuration with main wires and transverse wires stretched respectively along two mutually substantially perpendicular directions and that intersect in nodes. The main extend in the extrusion direction of the blank. The main wires have an upper rim and a pair of substantially vertical lateral walls extending downwardly from the upper rim at opposite ends of said upper rim. The main wires have a lower rim in regions remote from the nodes. The main wires have a lower portion in regions at the nodes which converge with the transverse wires.

Abstract: A wire strut indicator facing unit for a retaining wall, such as a temporary retaining wall, having an upstanding face section and a rearwardly extending floor section, wherein the floor section is formed from pairs of parallel wire elements and transverse cross-wire elements, and otherwise substantially free of wire elements between the wire element pairs. The pairs of parallel wires define the attachment location for a wire strut that extends between the face section and floor section of the facing unit.

Abstract: A production plant for a ground covering structure (6) comprises a plant inlet zone and a plant outlet zone for a grid reinforcing member (10). The plant further comprises movement means (4) designed in operation to move the grid reinforcing member (10) along a predetermined path from the inlet zone to the outlet zone, supply means (11) for the supply of plastics material in the fluid state in the form of threads (7) to the reinforcing member (10) disposed along the predetermined path, and cooling means (2, 3) for cooling the plastics material in the form of threads (7) which are tangled on the grid reinforcing structure. The inlet zone and the outlet zone are disposed opposite one another along the predetermined path with respect to the supply means.

Abstract: A pyramidal geotextile fabric comprising two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile. A method of stabilizing soil and reinforcing vegetation comprises the steps of placing a three-dimensional, high-profile woven fabric into soil, wherein the fabric comprises two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile; securing the fabric to the ground; and, distributing soil and seed onto the fabric such that the section of ground is quickly revegetated and thereby protected from further erosion.

Abstract: According to the invention, a security net can be erected in or on water or on the ground and is provided with a net or net-like structure (1) manufactured substantially from wire material, rope material, strand material or plastics material (2). The net (1) is bent together and forms longitudinal flanks (3, 4) and at least one arched region (5). The overlapping longitudinal flanks (3, 4) can be connected together and several stabilisers (8) are associated with the net (1). In cross-section, the net (1) is constructed similarly to a teardrop, with the arched region (5) lying on or at least partially in the water. In this way, a largely double-walled security system is obtained, which is able to intercept impacting objects reliably and moreover gently, because the net and the three-dimensional protective net structure is deformable due to the relative flexibility thereof.

Abstract: An engineering-purpose netted vegetation blanket including a plurality of mesh units arrayed and interwoven into rows. The mesh units each have borders loop-knitted using threads to form a double-layer structure including an upper and a lower thread layer, and a plurality of curved threads that are so woven to locate between the upper and the lower thread layer and be sequentially arrayed and extended between two adjacent ones of the borders while protruding from a plane defined by the borders. The mesh units are so arrayed that the mesh units in any two adjacent rows are in staggered relation, such that a void is formed between any two adjacent mesh units.

Abstract: A product for reinforcing terrain includes a net structure made of a plastic material having a plurality of bars and a plurality of elongate elements that are transversal with respect to the bars. The elongate elements are arranged between adjacent pairs of bars and exhibit a substantially wire-like structure, with a transversal section having a smaller area than a transversal section of the bars. Also described are a use of the product and a method for manufacture thereof.

Abstract: Provided is a method for manufacturing geological gradation layer featuring disaster prevention and ecologic function, which uses on-site earth or gradation materials commonly adopted in road construction, including aggregates, soils, gravels, or a mixture of water permeable concrete, and most importantly, added with uniquely arranged hollow bodies, all constituents being mixed and laid on soil stratum, and subjected to ramming, to form an ecological gradation layer. The ecological gradation layer provides an effect of supporting and also provides the functions of water storage, water preservation, and improving earth, whereby earth microorganisms and earth protozoa may establish a beneficial survival environment in earth, making the gradation layer exhibiting the characteristics of high water content and prompting breeding of microorganisms.

Abstract: A containment system includes a geomembrane liner positioned over a ground surface. An anchor member is provided beneath the geomembrane liner and includes a fastening plate adapted to be secured to the geomembrane liner. The geomembrane liner is positioned over the ground surface and anchor member and is secured to the fastening plate. Dirt or other covering material may then be provided in the hole and over the geomembrane, or the geomembrane may be left exposed.

Abstract: Disclosed is a landscape erosion control unit for retaining landscaping materials that includes a base structure and a plurality of retention structures attached to the base structure. Each retention structure of the plurality of retention structures includes a strip and a plurality of protruding members extending outwardly from the strip. Each protruding member of the plurality of protruding members is configured to hold the landscaping materials. Each protruding member of the plurality of protruding members has a bottom portion extending from the strip, a top portion away from the strip, and an intermediate portion between the top portion and the bottom portion. Each retention structure is configured as an integral unit from a material by at least one of cutting and patterning the material. Further, disclosed are a retention structure and a method for fabricating the landscape erosion control unit.

Abstract: A sheet-like element, such as a net, particularly for geotechnical applications, comprising a sheet-like body formed by superimposing at least two sets of filaments in order to provide a lattice-like structure, the sheet-like body being provided by a first polymer, which defines the lattice-like structure, and a second polymer, which is coextruded together with the first polymer and affects at least regions of at least one face of the sheet-like body, the first polymer having physical and mechanical characteristics of compressive and tensile strength, while the second polymer has a high friction coefficient.

Abstract: An apparatus and method for controlling water flow, soil erosion, and/or sediment flow in and around a construction site. The apparatus includes a three-dimensional, water-permeable polypropylene filled geotextile pocket that is secured to the ground with a supporting structure. The apparatus includes a tail portion that is placed flat against the ground, facing upstream against the direction of water flow. The tail portion can be secured with pins that provide protection against movement of the tail portion and reduce an amount of sediment passing under the apparatus.

Abstract: Disclosed herein are various embodiments of systems related to modular earth retaining wall systems. In one embodiment, among others, a precast retaining wall block configured for assembly into a retaining wall includes a front face portion, a web portion extending outwardly from a rear surface of the front face portion, and aligning elements. The web portion includes a vertical center portion and left and right protrusions extending outwardly from the lower sides of the vertical center portion. The left and right protrusions may be substantially triangular. The aligning elements extend downwardly from a bottom surface of the left and right protrusions for locking the precast retaining wall block to the vertical center portion associated with an underlying precast retaining wall block associated with an underlying row.

Abstract: A hermetic load distributor mat is disclosed, for sealing soils that are unstable or have low bearing capacity, and for optimally distributing loads over such soil. The mats connect together to form a stable, hemetically-sealed floor. The joints between the mats have a flexible seal. The mats are assembled together empty, and then are filled with a fluid such as water, the weight of which stabilizes and stiffens the mat and favorably distributes external loads.

Abstract: An improved device for simultaneously unrolling geotextile fabric and dispensing an aggregate layer for road construction comprises a hanger bar coupled to a vehicle frame. The hanger bar supports a roller bar adapted to carry a fabric roll. A dragger couples the hanger bar and arranges to present a dead-weight member on top of the fabric. An improved method using the improved device drags the chain on top of the fabric as it unrolls, thus holding the fabric in place. At the same time, a conveyered aggregate delivery system dispenses gravel on top of the fabric.

Abstract: An object of this invention is to provide a geotextile silt fence that has increasing permittivity with increase in height thereby allowing larger storm events, which impound at greater depths behind the fence in proportion to the runoff volume collected, to flow through the fence without overtopping. A further object of this invention is to provide a stiffening device at the top of the silt fence to reduce sagging and improper overtopping. This stiffening device is either a mono-directional extruded geogrid structure that is a higher mil thickness than the geotextile monofilament structure of the silt fence which is affixed to the geotextile continuously throughout the silt fence length by either thermal welding, sewing, or adhesives. A further object of this invention is to provide an overflow preferential pathway at the top of the silt fence through large voids either within the mono-directional extruded geogrid to allow controlled overflow of impounded water.

Abstract: The geotextile exclusion fabric for pest control and deterrence comprises a mixture of metal fibers needle punched to a scrim layer.

Abstract: The present invention is directed to a geosynthetic wicking fabric for transporting water from beneath pavement structures to reduce or prevent damaged caused by frost heave and thaw. Further, the present invention is directed to a wicking drainage system employing the wicking fabric.

Abstract: A system and method are provided for increasing the width of an existing roadway. The system incorporates a reverse-oriented retaining wall and soil nail supports. The retaining wall is formed by a first set of soil nails, wire mesh material, and one or more geotextile material layers. An alternate embodiment forms the retaining wall with a plurality of concrete blocks stacked and spaced to form a block wall. The blocks are mounted over the first set of nails and can be filled with mortar. Backfill material fills a gap between the existing sloping surface and the retaining wall. A second set of soil nails can be provided for additional subsurface support. An upper surface of the backfill material can be paved to form the extended roadway width. The cantilevered configuration of the reverse-oriented retaining wall provides a solution for a less costly retaining wall structure.

Abstract: Void-maintaining laminates comprising fuzzy woven or fuzzy membrane layers are provided. Laminates of the present invention comprise at least one sheet-like core element, typically comprising void spaces or channels and, bonded thereto, at least one layer of fuzzy woven composite for use in geotechnical applications. The superior adhesion or bonding of the respective layers to one another, and its contribution to the structural integrity of void spaces or channels, enables the construction and positioning of drainage composites having the desirable characteristics of high permittivity and high transmissivity. Numerous embodiments of the invention are possible. Fuzzy geocomposites of the invention can be used, for example, underneath buildings, foundations, roadways and other paved structures, or in landfills or other types of geotechnical installations to replace or complement conventional drainage materials such as sand, stone and gravel. Methods for making the fuzzy geocomposites are also provided.

Abstract: Disclosed are geotechnical structures formed from a geosynthetic article and an encapsulated granular material dispersed within or upon the encapsulated granular material. In particular embodiments, a geocell is used as the geosynthetic article. Among other things, the geotechnical structures can be used for forming roads, parking lots, paved surfaces, as well as road beds and foundations for highways or railroads. The geotechnical structures are cost-effective and provide exceptional properties for long-term use.

Abstract: A reinforced silt retention sheet and systems for silt retention are provided. The reinforced silt retention sheet includes a non-woven fabric having a series of entangled polymer fibers with a reinforcing material secured within the fabric. The resultant reinforced silt retention sheet further can have openings of a desired size to enable filtering of a flow of fluid passing through the reinforced silt retention sheet.