Abstract: An abradable structure (36) is provided, with regions (44, 45, 46) with lower resistance to wearing produced by labyrinth seal lips (4, 5), at specific points in the axial direction of the turbomachine, where lip interference could cause the rotor to block up, such as after a temporary shutdown of the turbomachine. These regions may be produced by local weakening (38) or by the abradable material having a structure that is less dense. Application, for example, to turbomachine turbines.

Abstract: Methods are provided that facilitate the production of hydrocarbons from subterranean formations, involving the mobilization of an immobile heavy oil in situ by gravity displacement. In effect, heavy oil is mobilized by dense aqueous gravity displacement (DAGD), in a process that generally involves injecting a dense, heated aqueous injection fluid into the formation into an injection zone that is in fluid communication with immobile heavy oil. The injection well is operated so that the injection fluid mobilizes and displaces the immobile heavy oil, to produce an expanding upper zone of mobilized heavy oil amenable to production.

Abstract: A system having an elongated body defining a hollow passageway therethrough, which includes as a first opening disposed about a longitudinal upper half of the elongated body, and at least two second openings disposed about longitudinal side zones of the elongated body, wherein each of the at least two second opening has an area of between 80 and 700 cm2.

Abstract: An insulation board assembly includes an insulation board body that has a front face, a back face, a top edge, and a bottom edge. The back face has a drainage channel extending from the top edge to the bottom edge. A drainage insert is positioned in the drainage channel proximate the bottom edge of the insulation board body. The drainage insert has a front face, a top edge, a bottom edge, and two side edges, and an insert height measured between the top edge and the bottom edge of the drainage insert. The drainage insert defines at least one interior drainage passage extending from the top edge of the drainage insert to the bottom edge of the drainage insert. A channel height of the drainage channel is preferably at least twice the insert height.

Abstract: An improved liquid run-off disposal system is described having an infiltration chamber (72) with first and second sidewalls (74). In cross-sectional view the first and second sidewalls (74) each include an inner surface 76 and outer surface (78), and each sidewall (74) includes a plurality of integrated louvre-shaped apertures (80). In cross-sectional view each louvre-shaped aperture (80) includes an upper surface (82) and a lower surface (84) which are angled upwards from the outer surface (78) and protrude inwards from the inner surface (76) into the interior of the infiltration chamber (72). The upper and lower surfaces (82, 84) comprise a plurality of angled sections, the angled sections being arranged so as to form a substantially vertical flow path through a portion of the aperture (80). The angled sections of the upper and lower surfaces (82, 84) are arranged at an angle and of a length so as to substantially overlap when viewed in a horizontal direction.

Abstract: A low-profile fluid collection conduit includes an elongate outer cover having an upper portion and a lower portion generally opposite the upper portion, with the outer cover being much wider than it is tall and defining an interior volume. An elongate rigid spacer is fitted within the interior volume of the elongate outer cover, with the elongate spacer allowing the majority of the interior volume to be unfilled so as to permit the flow of fluid along and within the elongate outer cover. The collection conduit is used with a fluid-impermeable membrane as part of a landfill fluid collection and conveyance system.

Abstract: A low-profile fluid collection conduit includes an elongate outer cover having an upper portion and a lower portion generally opposite the upper portion, with the outer cover being much wider than it is tall and defining an interior volume. An elongate rigid spacer is fitted within the interior volume of the elongate outer cover, with the elongate spacer allowing the majority of the interior volume to be unfilled so as to permit the flow of fluid along and within the elongate outer cover. The collection conduit is used with a fluid-impermeable membrane as part of a landfill fluid collection and conveyance system.

Abstract: The present application provides a method and system for disposing wastewater effluent through laterals placed over a drain field without the need to level the terrain. The method provides calculating sizes of one or more orifices in positioned along the length of the laterals.

Abstract: A detention pond for the passive temporary storage of detained water during a potential flooding event near a river, stream or bayou where the depth and therefore the volume of the detention pond is not set by the elevation of the normally flowing water in said river, stream or bayou adjacent detention pond but rather the drain line connects to the river, stream or bayou downstream of the detention pond where the elevation is at a lower level, allowing the detention pond to be dug deeper and therefore of proportionately greater volume.

Abstract: A module for a wastewater treatment system, for use when buried in permeable media such as sand or soil, includes a central distribution unit and a multiplicity of treatment fins in flow communication therewith. Within each fin is a lengthwise-running perforated pipe. In one kind of assembly, a treatment system module comprises a central housing has attached fins which are wrapped in spiral fashion around the central distribution unit when in a compact shipping container. In another assembly, the fins are attached to a central membrane and shipped in a container while folded, detached from the central distribution unit; and the distribution unit may be comprised of separate nested half units to be joined at the point of use. When take to a wastewater treatment site, the packed components are removed from the container and arranged for use.

Abstract: A trench drain defining a channel and having an accessory rib allowing the convenient attachment of accessories to the sides of a drain in order to facilitate the installation of a trench drain, place drain outlets at any convenient places along the trench drain, and to create right angle joints between two trench drains.

Abstract: A method for providing a system for supporting a layer of paver blocks, the method including excavating drain holes at a depth corresponding to at least a length of a corresponding drain pipe, forming a base by pouring high porosity non-compactable material into each drain hole of the at least three drain holes, inserting a drain pipe into a corresponding drain hole, filling a hollow of the drain pipe with a non-compactable material, placing a water permeable closure across the top opening of the drain pipe, pouring a concrete layer above the drain hole, and depositing a sand layer above the concrete layer, with the sand layer covering the top opening.

Abstract: A ground covering comprising: a base panel including a sheet with an array of protrusions extending therefrom; a top panel including an array of receptacles for mating with at least a number of said protrusions; one or more drainage conduits formed through each of the protrusions, each drainage conduit being at least partially occluded by a baffle; and complementary engagement formations on peripheries of the protrusions and of the receptacles for fastening the top panel to the base panel.

Abstract: A low-profile fluid collection conduit includes an elongate outer cover having an upper portion and a lower portion generally opposite the upper portion, with the outer cover being much wider than it is tall and defining an interior volume. An elongate rigid spacer is fitted within the interior volume of the elongate outer cover, with the elongate spacer allowing the majority of the interior volume to be unfilled so as to permit the flow of fluid along and within the elongate outer cover. The collection conduit is used with a fluid-impermeable membrane as part of a landfill fluid collection and conveyance system.

Abstract: A self-drainage anchor cable system is provided, wherein a drainage section (15) is arranged above the internal anchoring section (14) of an anchor cable; a first end of the steel strand (2) extends into a bottom of the borehole (1); the isolation pipe (3) is sleeved on the steel strand (2) in the drainage section (15), and the permeable pipe (4) is sleeved on the isolation pipe (3); a length of the isolation pipe (3) is larger than a length of the permeable pipe (4), and there is a space (5) between the isolation pipe (3) and the permeable pipe (4); the water stop rings made of water-expanding rubber (6) are provided at both ends of the isolation pipe (3), and end portions of the permeable pipe (4) are in contact with the water-expending rubber water stop rings (6) A construction method for the self-drainage anchor cable system is also provided.

Abstract: A drain assembly for being placed inground includes a first panel and a second panel spaced-apart from the first panel, a plurality of supports extending between the first panel and the second panel, a bottom or pipe extending between a bottom portion of the first panel and the second panel, and a cap extending between a top portion of the first panel and the second panel. The first panel may define a plurality of drainage apertures. A related method is also provided.

Abstract: A French drain style drainage system that resolves water infiltration problems is provided. The system includes French drain style pipes with flaps on both sides wherein a first row of perimeter pipes is laid at the foundation footing level with perforations at the bottom half of the pipe circumference, below the flap so that water below the footing will be collected and the flap which overlaps the foundation creates an effective seal preventing water from creeping upward. A second row of perimeter pipes located just under the ground surface also has flaps on both sides, wherein one flap makes contact with the side of the building and perforations are located on the upper half of the pipe, above the flaps so as to collect surface water. Joining the upper external flap to the lower external flap is a waterproof membrane which creates a dry zone between the two rows of perimeter pipes proximal to the house foundation.

Abstract: A subsurface fluid conveyance chamber is arch-shaped in cross-section, having a corrugated outer shell extending along a horizontal axis with a pair of contiguously molded end walls and alternating peak and valley corrugations along its length. Each peak corrugation forms an outer ridge having a top surface and a pair of sidewalls. Inner walls along each lateral side of the outer shell form interior chambers at each ridge location in the outer shell. Each interior chamber has an aperture formed in the inner wall, and two opposing apertures formed in each sidewall. The inner wall apertures are vertically offset above the outer shell apertures and form a gravity trap for the granular material, limiting entry to the lower section of the interior chambers. The angled pathways defined by the interior chamber aperture locations require directional changes in fluid flow that minimize contamination of the inner conveyance chamber during use.

Abstract: Treatment of wastewater containing contaminants is provided. More specifically, treating wastewater through capture and recirculation of percolated fluid effluent through and from one or more infiltration field systems is provided.

Abstract: Disclosed is a comprehensive excavation process performed on an excavation site. The process includes installing wellpoints for lowering the groundwater level within the excavation site and stabilizing the boundary soil walls of the excavation site by an improved soil nailing method. The improved soil nailing method employs casing pipes that are part of the wellpoint system as reinforcing elements for the stabilization of the soil walls.

Abstract: An underground stormwater management system includes a first-flush chamber that receives the first flush. The chamber removably holds filter cartridges that close the chamber and filter the first flush as the first flush drains out of the chamber and into an underlying porous substrate. When the filter cartridges are used up, they can be replaced with new filter cartridges.

Abstract: A paving system for paving or flooring includes a top layer of a plurality of paving elements, and an underlayment support layer of a polymeric material configured into panels. The panels are suitable to support the paving elements, the panels having a generally planar support surface.

Abstract: A pipe mat for use with a tubing tray for receiving, organizing and storing drill pipe tripped out of a drill string on a drilling rig has a plurality of substantially parallel and spaced-apart support rails to form a plurality of drain channels disposed between adjacent pair of support rails. A plurality of substantially parallel and spaced-apart nub rails is disposed on the plurality of support rails. The nub rails are substantially orthogonal to the support rails, thereby forming a lattice structure having openings disposed between the nub rails that are in communication with the drain channels. A plurality of spaced-apart pipe nubs extend upwardly from the nub rails, which hold a drill pipe in place when an end of the drill pipe is placed onto one of the pipe nubs. A method for collecting fluids draining from drill pipe uses the pipe mat with the tubing tray.

Abstract: A shoring system for controlling liquid on a site comprising a plurality of slide rails and a plurality of lateral plates. The plurality of slide rails comprise at least one liquid-controlling slide rail comprising a hollow body and lateral openings permeable to liquid when the at least one liquid-controlling slide rail is positioned into the ground. The openings are positioned on at least a portion of the liquid-controlling slide rail directed outside of the excavation. Each of the plurality of slide rails comprises at least two plate rails. Each of the plurality of lateral plates can be slid into the plate rails of two adjacent slide rails of the plurality of slide rails.

Abstract: An arch-shaped corrugated chamber having corrugation peaks and valleys, with reinforcing ribs provided on the corrugation peaks. The ribs extend upwardly from a chamber base to a rib upper end, and have an arch-shaped cross-section with an outer surface extending outwardly from a corrugation peak and a fin extending inwardly from the corrugation peak, and optionally, a rib line provided on the rib outer surface centered on the rib arch-shaped cross-section. A channel formed by the inner surface of the rib is sized to receive a corresponding rib of a second chamber so that multiple similar chambers with ribs may be stacked together.

Abstract: Systems and methods of imprinting concrete having exposed aggregate. The imprinted concrete system comprises a concrete layer, an imprinted layer disposed on the concrete layer, wherein the imprinted layer comprises a decorative aggregate, and has been imprinted with an imprinting tool. In some embodiments, the decorative aggregate may be at least partially exposed.

Abstract: A liquid run-off disposal system 100 comprising an elongate tank structure having one or more culvert sections 102 adapted to be arranged end to end in a substantially horizontal orientation below ground. Each culvert section 102 also includes a plurality of louvre-shaped inserts 114 provided in the sidewalls thereof wherein, in use, when liquid run-off is piped into the culvert section 102 it can drain away by soaking into the surrounding soil.

Abstract: Embodiments described herein are related to water management units for extracting water from moist soil. The units extract water and collect it to be siphoned away as waste water or for later use. A water management unit comprising: an elongate collection portion; and an extraction portion arranged to discharge extracted water into the collection portion, wherein the extraction portion comprises at least one rib extending laterally from the collection portion along a length of the collection portion. Water is collected by capillary action.

Abstract: An underdrain apparatus and a method for manufacturing such apparatus are provided. The underdrain apparatus can be extruded in long sections as a unitary part. The underdrain apparatus may be extruded in various sizes, shapes, and materials. Further, the underdrain apparatus may include a passageway for transporting water to and from the filter media and/or air to the filter media. In some embodiments, apertures are formed in the underdrain apparatus during an extrusion process to provide a path between the passageway and the filter media.

Abstract: A maintainable soil drain and methods for using the maintainable soil drain for draining liquid away from structures, such as Mechanically Stabilized Earth (MSE) walls and earth slopes, are disclosed. According to an aspect, a maintainable soil drain includes a drainage pipe having multiple holes defined therein. The maintainable soil drain also includes a removable drain. Further, the maintainable soil drain includes an interior geotextile wrapping that substantially surrounds the removable drain.

Abstract: A method for building and renovating golf course sand bunkers to improve infiltration of water through a drainage system reduces the chance of contamination of the sand and to reduce erosion and maintenance and provide consistent playable sand for golf. The bunker is built to slopes based on the sand selected for use. A drainage system and a layer of fine pea gravel is installed over the entire floor of the bunker. A pre-polymer is sprayed onto the layer of pea gravel to secure it in place. The polymer sprayed bunker is permitted to cure for approximately 24 hours. A sufficient amount of bunker sand is added and compacted so the entire bunker is covered. Washed sod is placed around the bunker to stabilize the edge of the bunker.

Abstract: A liquid run-off disposal system 10 comprising an elongate tank structure 22 having one or more sections adapted to be arranged end to end in a substantially horizontal orientation below ground. The tank structure 22 also includes a plurality of apertures 14 provided in the side walls thereof wherein, in use, when liquid run-off is piped into the tank structure 22 it can drain away by soaking into the surrounding soil.

Abstract: An underdrain apparatus and a method for manufacturing such apparatus are provided. The underdrain apparatus can be extruded in long sections as a unitary part to provide a light weight, strong, and easily installed underdrain assembly. The underdrain apparatus may be extruded in various sizes, shapes, and materials. Further, the underdrain apparatus may include a passageway for transporting water to and from the filter media and/or air to the filter media. In some embodiments, apertures are formed in the underdrain apparatus during an extrusion process to provide a path between the passageway and the filter media.

Abstract: A storm water treatment system accomplishes low impact development compliant treatment of storm water with filtrate discharged to an underground infiltration structure. The system has an automatic high-flow bypass under gravity flow, even on flat sites, plus automatic standing water drain-down for mosquito control and de-watering of collected solids. This system incorporates unique distributional piping schemes enabling periodic removal of suspended solids from otherwise inaccessible structures.

Abstract: Embodiments of the invention provide a drainage system for draining surface liquids from a first surface adjacent to one side of a drainage channel and for providing a transition from the first surface on one side of the drainage channel to a synthetic turf surface or other thick surface material on the other side of the drainage channel.

Abstract: An apparatus including flexible tube having a first opening at a first end, an opposing second opening at a second end, and a body portion between the first end and the second end. The body portion of the flexible tube may have an inner cavity and a plurality of further openings leading out from the inner cavity. The apparatus may include a first connector, configured to be connected to a water source. The apparatus may further include a non-porous first outer member, having a first opening at a first end, an opposing second opening at a second end, and a body portion between the first end of the first outer member and the second end of the first outer member. The first outer member may substantially surround a portion of the flexible tube to block a first set of the plurality of further openings to inhibit liquid flow.

Abstract: A liquid run-off disposal system (10) comprising an elongate tank structure (22) having one or more sections adapted to be arranged end to end in a substantially horizontal orientation below ground. The tank structure (22) also includes a plurality of apertures (14) provided in the side walls thereof wherein, in use, when liquid run-off is piped into the tank structure (22) it can drain away by soaking into the surrounding soil.

Abstract: The present application provides a method and system for disposing wastewater effluent through laterals placed over a drain field without the need to level the terrain. The method provides calculating sizes of one or more orifices in positioned along the length of the laterals.

Abstract: Disclosed is a subsoil absorption system comprising a drainage unit with a support pipe extending through the inner cavities of modules which are spaced apart along the support pipe. The drainage unit is positioned within an excavation and a fluid source provides fluid to the inner cavity of at least one module which is thereafter allowed to flow from the inner cavity into excavation backfill.

Abstract: The device is provided with a plurality of intermediate grid plate elements (12) with a top and a bottom surface, which are adapted to be positioned one on top of the other. Each intermediate grid plate element (12) comprises a grate strutting (18, 19) as well as a plurality of support members (20) which are distributed, in particular in a regular manner, over the intermediate grid plate element (12), wherein said support members (20) extend between the bottom face and the top face of an element in a direction substantially transverse to the extension of the intermediate grid plate elements (12) and are supported on the support members (20) of an adjacent intermediate grid plate element (12) arranged below a respective intermediate grid plate element (12), and support the support members (20) of an adjacent intermediate grid plate element (12) arranged above said respective intermediate grid plate element (12).

Abstract: An aeration and drainage system includes an aeration & drain pipe which contains slots on its upper surface, a stand which holds said aeration & drain pipe above a bottom surface, an air and liquid transfer element attached to the aeration & drain pipe and positioned over said slots. Additionally the air and liquid transfer element extends upward from the slots, and the air and liquid transfer element contains openings on its top to allow fluids to flow into the air and liquid transfer element and through the slots in the aeration & drain pipe.

Abstract: A system for treating influent liquid includes a treatment module having an elongated member arranged in a predetermined configuration. The elongated member has a core structure wrapped in a fabric configured for the passage of the influent liquid therethrough. Filter field medium is disposed about open areas defined by the predetermined configuration of the elongated member and is configured for receiving the influent liquid from the elongated member and passing the influent liquid therethrough. A bladder containing the treatment module has an outlet for providing treated influent liquid passing through the filter medium. A distribution conduit is coupled to the bladder and has an outlet for distributing the influent liquid to the elongated member.

Abstract: An aeration and drainage system includes an aeration & drain pipe which contains slots on its upper surface, a stand which holds said aeration & drain pipe above a bottom surface, an air and liquid transfer element attached to the aeration & drain pipe and positioned over said slots. Additionally the air and liquid transfer element extends upward from the slots, and the air and liquid transfer element contains openings on its top to allow fluids to flow into the air and liquid transfer element and through the slots in the aeration & drain pipe.

Abstract: A drainage cell comprises a backing plate defining a plurality of holes, a series of conical tubular structures having side walls and a base extending from the backing layer, the tubular structures being in fluid communication with at least some of the holes in the backing plate thereby allowing fluid to pass through the holes into a generally tubular structure. Sides of the tubular structures define apertures permitting fluid flow out of the tubular structures. Typically, the open area of the tubular structures is at least 20% of the area of the side walls of the tubular structures, and most preferably 70 to 75% of that area. Providing apertures in the side walls of the tubular structures significantly improves the rate of flow of the water through the cell and creates a higher internal drain void volume area.

Abstract: A method and pumping/drainage channel member for injecting surface water into the soil beneath a ground area includes drilling a series of holes and inserting an elongated pumping/drainage members into each hole extending downwardly into the soil. The pumping/drainage channel members comprise a cluster of integrally joined channel features each formed with a lengthwise extending slot opening. Surface water flows to the pumping/drainage member, enters the channels and drains down the pumping/drainage members to enhance water movement down into the soil to reduce runoff and help to recharge acquifers. Longer members may be installed between shorter members in a pattern to achieve more rapid injection of water deep into the subsoil.

Abstract: A plastic arch-shape cross section corrugated stormwater chamber has a multiplicity of crest corrugations and valley corrugations which run transverse to its length. Sub-corrugations run along part or all of the arch-curve lengths of either crest corrugations or valley corrugations, or along both of them. A sub-corrugations are smaller in dimension than an associated crest corrugation or valley corrugation. Sub-corrugations may taper in width and depth and may taper to nothingness. A compound convex shape end cap, useful for closing off the ends of stormwater chambers, has substantially vertical corrugations with analogous sub-corrugations.

Abstract: A modular or integral appendage for a septic gallery or conduit has a first section for connected to a lateral side of the gallery with the first section having a number of apertures thereon. The first section has a first area. The lateral side of the septic gallery has a second area. The first area is greater than the second area for increased drainage and thus adds capacity to the gallery or conduit. The second area has protuberances thereon.

Abstract: A water draining method comprises water draining adapted for roads, mountains, mountainsides, protective hillsides, retaining walls, grass slopes, airport runways, highways, football fields, grass slopes, stone dams, embankments, landfills, farms, irrigating and draining systems, characterized in that: a. installing receiving members in a pervious bed; b. arranging draining pipes in the receiving members; c. disposing draining ditches on one or two ends of a drain tube; d. drawing excessive water to the draining pipes by using drawing ports of the drain tube and draining the water into the draining ditch via an end portion of the drain tube. Thereby, the present invention allows to obtain rain collecting, impurities filtering, irrigating, draining, anti-leaking, and warning functions.

Abstract: A modular storm water infiltration apparatus for directing water into an adjacent soil column. The apparatus includes a plurality of infiltration chambers each having a bottom panel and a peripheral wall that define an interior for storing water. The peripheral wall of each infiltration chamber has at least one infiltration aperture formed therethrough for communicating water laterally into the soil column. The bottom panel of each infiltration chamber has at least one drain aperture formed therethrough for communicating water downwardly out of the infiltration chamber. The infiltration chambers are configured to be stacked vertically with respect to one another.

Abstract: A method of use comprises providing an inline pipe grate component and at least partially burying the inline pipe grate component. The inline pipe grate component has a longitudinal axis and a plurality of slits oriented substantially perpendicular to the longitudinal axis.