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: The invention relates to a drill for realizing a partially tapered bore hole in a soil covering a hardpan layer. The drill comprises a rotatable drivable unit that is provided with a carrying structure and a multiple number of cutting elements carried by the carrying structure. The multiple number of cutting elements are arranged along a line extending substantially radially and outwardly from a central axis of the rotatable drivable unit. Further, lower ends of cutting elements in a radial inner section are mainly positioned in a plane transversely to the rotation axis of the rotatable drivable unit. Lower ends of cutting elements in a radial outer section are mainly positioned in a downwardly tapered surface having a symmetry axis coinciding with the rotation axis of the rotatable drivable unit. The lower ends of the cutting elements may subscribe, during rotation, a truncated cone surface.

Abstract: A method and equipment for displaying holes to be drilled when drilling holes into rock with a rock-drilling rig having control equipment and a display belonging thereto and measuring means for defining the direction and position of a drill rod, by using a pre-designed drilling plan defined in a three-dimensional coordinate system, in which a starting point (19a to 21a) and end point (19b to 21b) is defined for each hole to be drilled. A base plane running through the end point (19b to 21b) of the hole and parallel to the projection plane is defined for each hole (19 to 21), and a projection of the intersection of a hole or its extension created when drilling in accordance with the current location of the drill rod and the defined base plane is displayed with a graphical location symbol on the projection plane.

Abstract: The invention relates to a method for drilling rock, wherein holes to be drilled are determined prior to drilling as a drilling pattern wherein for each hole, a starting place, direction and hole depth for drilling are determined with respect to the rock to be drilled. In the invention, hole-type-specific drilling parameters are determined for the holes to be drilled, and during a drilling phase a drill rig automatically selects drilling parameters for each hole to be drilled on the basis of the hole type of the particular hole.

Abstract: A modular drilling system including a plurality of different size drill bits which can be interchangeably mounted on a common tapered male connecting portion of a drill rod assembly. The tapered male connecting portion may be formed directly onto a tapered drill rod of the assembly or may be formed on an adapter which is threaded onto a threaded drill rod of the assembly. Each bit includes a female connecting portion having a generally cylindrical tapered surface mating with a corresponding tapered surface of the male connecting portion and at least three planar sections adapted to provide positive engagement with corresponding planar sections of the male connecting portion.

Abstract: An apparatus for making a second borehole in the ground, a cross section of which second borehole partially intersects a cross section of an existing first borehole, includes a boring device and a guide device operatively connected to the boring device. The guide device includes at least a first guide element configured to interact with a wall of the existing first borehole and a direction-influencing device configured to influence a direction of the second borehole while the second borehole is being made. The guide device is configured to guide the boring device relative to the existing first borehole.

Abstract: A boring system and method for same, relating to the boring system and method therefor, in particular to the boring system and method therefor for forming boring holes on the ground, which includes a bit unit for boring the ground, a connecting rod connected with a driving device for transmitting driving force to the bit unit, and a guide unit connected with the connecting rod in a longitudinal direction, the guide unit guiding movement of the bit unit along a guide groove which is formed in a casing inserted into an adjacent boring hole in a longitudinal direction, is disclosed.

Abstract: A hard rock drill barrel has a barrel portion with a downhole hammer drill disposed therein at the barrel's periphery. A pilot portion, in substantial axial alignment with the barrel but having a smaller diameter, extends distally from the barrel for inserting into a pilot shaft of slightly larger diameter than the pilot portion. In operation, the hammer drill excavates a collar around the pilot shaft when the drill barrel is rotated and supplied with pressurized air, thereby excavating a relative large diameter shaft. The drill barrel is hollow and open at its proximal end to receive and collect cuttings flushed into the shaft above the drill barrel. The piloted drill barrel is adjustable to excavate variable diameter shaft portions, enabling the placement of casing within a larger diameter shaft portion. After adjustment of the drill barrel, smaller-diameter shaft excavation proceeds beyond the casing.

Abstract: The present invention is an improved method of installing a flowline below the surface. The method includes the steps of establishing first and second sight relief holes along a linear path, positioning a directional drilling machine on the surface, boring a first portion of a pilot hole from the surface to the first sight relief hole, determining the elevation of the boring tool and adjusting the boring tool to the desired depth, boring a second portion of the pilot hole to the second relief hole, and determining the elevation of the boring tool and adjusting the tool to the desired depth. In another aspect of the invention, a method for directionally boring a flowline is provided.

Abstract: A core barrel has a plurality of pneumatic downhole hammer drills disposed around the perimeter of its working end for drilling piles in the ground for use in foundations, secant piles, and the like. The core barrel includes a slurry port and an air port at its top end for admitting a drilling slurry and pressurized air, which is used in driving the hammer drills and flushing cuttings from an annular kerf during drilling. A plurality of generally parallel plates form the top of the core barrel and define an air channel and a slurry channel for delivering air and slurry to the core barrel wall, where they flow freely or via conduits toward the hammer drills at the working end of the core barrel. The hammer-type core barrel is used to construct piles by first drilling an annular kerf in the ground. Circulating drilling fluid cools the working end of the hammer drills elements and washes cuttings from the kerf during drilling.

Abstract: A rotating tool for milling or drilling in a well bore, having one or more rotating cutting structures, with each cutting structure rotating about its own axis, and with the cutting structures rotating about the axis of the tool. The rotational axis of the tool is offset from the axis of at least one cutting structure, with the axis of the tool passing through that cutting structure. This ensures that the cutting structure which spans the axis of the tool rotates independently of the tool, to prevent the existence of a zero velocity point on the cutting face of the tool.

Abstract: A core barrel has a plurality of pneumatic downhole hammer drills disposed around the perimeter of its working end for drilling piles in the ground for use in foundations, secant piles, and the like. The core barrel includes a slurry port and an air port at its top end for admitting a drilling slurry and pressurized air, which is used in driving the hammer drills and flushing cuttings from an annular kerf during drilling. A plurality of generally parallel plates form the top of the core barrel and define an air channel and a slurry channel for delivering air and slurry to the core barrel wall, where they flow freely or via conduits toward the hammer drills at the working end of the core barrel. The hammer-type core barrel is used to construct piles by first drilling an annular kerf in the ground. Circulating drilling fluid cools the working end of the hammer drills elements and washes cuttings from the kerf during drilling.

Abstract: A boring head is provided for use in mounting to a drill pipe of a drilling rig for enlarging a pilot bore in horizontal boring operations. The boring head has an axial member positioned along a central axis of the boring head for connecting the boring head to the drill pipe of the drilling rig. A plurality of flanges extend radially from the axial member, and a flange support frame is provided for structurally interconnecting and supporting the flanges on the axial member. A plurality of cutting cones are mounted to the boring head. In particular, each of the cutting cones has a cone axis, each of the cutting cones is mounted to one of the flanges such that its cone axis extends at an acute angle ranging from zero degrees up to about 45 degrees relative to the central axis; each of the cutting cones is mounted for independent rotation about its cone axis; and each of the cutting cones has a plurality of independently rotatable cutting bits mounted thereto.

Abstract: A boring head is provided for use in mounting to a drill pipe of a drilling rig for enlarging a pilot bore in horizontal boring operations. The boring head has an axial member positioned along a central axis of the boring head for connecting the boring head to the drill pipe of the drilling rig. A plurality of flanges extend radially from the axial member, and a flange support frame is provided for structurally interconnecting and supporting the flanges on the axial member. A plurality of cutting cones are mounted to the boring head. In particular, each of the cutting cones has a cone axis, each of the cutting cones is mounted to one of the flanges such that its cone axis extends at an acute angle ranging from zero degrees up to about 45 degrees relative to the central axis; each of the cutting cones is mounted for independent rotation about its cone axis; and each of the cutting cones has a plurality of independently rotatable cutting bits mounted thereto.

Abstract: At least one guide shaft is equipped on one or both sides of a plurality of drilling shafts arranged on a line; and a jet nozzle is equipped with said guide shaft. A multi-shaft drilling unit, equipped with preferably three auger shafts, is used to develop a continuous wall under the ground. In such a unit, a housing for maintaining a pitch between the auger shafts includes a housing comprising: a primary gear rotating around the central auger shaft; a pair of secondary gears engaging with the primary gear; a primary bevel gear integral to the primary gear; a secondary bevel gear engaging with said primary bevel gear and fixed to a rotary shaft which rotary shaft is perpendicular to a straight line connecting the center lines of auger shafts; and cutters fixed at both ends of the rotary shaft.

Abstract: A multi-shaft drilling unit having three auger shafts for developing a continuous under ground wall and comprises a housing for retaining pitch between the auger shafts, the housing comprising, primary transfer gears rotating around a central auger shaft, secondary transfer gears engaging with the primary transfer gears, a tertiary transfer gear connected to the primary transfer gear, a quaternary transfer gear connected to the tertiary gear and fixed to a rotary shaft orthogonally crossing a straight line connecting auger shaft centers, and cone-shaped cutters expanding the diameter outward and fixed on both ends of the rotary shaft. The cutters cut off a triangular convex and form a continuous wall unit of which both ends form a semicircle and both sides form a straight line and can be formed in subsoil.

Abstract: A plurality of rods each having a bit at a front end are disposed in parallel to one another so that adjacent bits are displaced to some extent forward and backward, and a striking device operatively connected to each of the rods includes a striking block. The striking block includes a single cylinder block having a plurality of cylinder tubes, and a striking piston is slidably fitted into each of the cylinder tubes. The striking block further includes a change-over valve for changing over between a forward movement and a backward movement of each striking piston. A rear end of each rod is connected through an adapter to a shank rod which is connected to the striking device. In the striking device, a spring is provided between a bearing holder which holds the shank rod rotatably and the adapter to push the rod in a forward direction. When the bit is not reached the rock, the rod is pushed forward by the spring to hold the shank rod at a position before the striking point.

Abstract: An apparatus for forming a slit in a rock and a concrete surface has a simple construction to enable a deep slit having a predetermined width and smooth inner surface to be made efficiently and also decreases the slit making cost due to replacement of bits. This slit forming apparatus comprises a plate type bit (17) fixedly secured to the leading end of a laterally swingable plate (13), a drill bit (11) fixedly mounted on the leading end of a rod (9a and/or 9b), which is disposed along at least one side of the plate, so that it may rotate and slide, and striking means (5 and/or 12a, 12b) for striking the plate and the rod simultaneously or separately. Further, the rod has at its front end portion a stabilizer for stabilizing the direction of sliding. The plate type bit consists of a plurality of detachable bit blocks.

Abstract: A drilling head for use in mining operations comprises a cylindrical drum having an open rear end and defining an interior cavity, an exterior spiral arranged to forwardly advance mined particles, a nose spiral disposed in advance of the drum and arranged so as to rearwardly advance the mined particles, the exterior and nose spirals terminating generally at the front portion of the drum and together defining at least one recovery aperture through which the mined particles forwardly advanced by the exterior spiral and rearwardly advanced by the nose spiral can pass to the interior cavity, and an interior spiral coaxially disposed and rotatable in the interior cavity in a direction opposing the rotational direction of the drum.

Abstract: A drilling head for use in mining operations comprises a cylindrical drum having an open rear end and defining an interior cavity, an exterior spiral arranged to forwardly advance mined particles, a nose spiral disposed in advance of the drum and arranged so as to rearwardly advance the mined particles, the exterior and nose spirals terminating generally at the front portion of the drum and together defining at least one recovery aperture through which the mined particles forwardly advanced by the exterior spiral and rearwardly advanced by the nose spiral can pass to the interior cavity, and an interior spiral disposed so as to rearwardly advance the particles which pass through the recovery aperture. An assembly of counter rotating drilling heads is also disclosed.

Abstract: Apparatus and method for recovering resources from subterranean rock formations, particularly heat energy, and more particularly geothermal energy. A heat-drill, which has means associated therewith for removing some rock from the earth and forming other rock into shafts, drills into the earth and forms two shafts at the same time. Both shafts communicate with each other and with the surface and are used to circulate a drilling mud which passes through the drill body and carries off the rock being removed. The heating means is shaped in a coil or grid pattern and operates at a temperature well above the melting point of the rock, heating the rock it displaces to well above its melting point, while raising the average temperature of the total rock melted to slightly above its melting point. The drilling mud absorbs heat as it circulates and the absorbed heat is put to any desirable use, particularly by being recovered from the drilling mud by a heat-exchanger on the surface.

Abstract: This cultivator includes a base, which is carried by a pair of ground wheels, and a motor mounted to the base above a pair of auger assemblies. The motor shaft extends rearwardly of the base and the auger assemblies include elongate shafts rotatively mounted within sleeves attached to the base. The motor shaft and the auger shafts are connected at their rear ends by a chain and sprocket drive assembly which provides counter-rotational motion in the two auger shafts. The forward ends of the auger shafts are each provided with a screw and spaced radial tines of progressively increasing length.

Abstract: A tunneling machine is described which uses an array of impact tools for cutting a deep kerf that defines the wall of the tunnel. The impact tool provides impact blows through drill steels to which drill bits are attached. A substantial portion of the drill steels extend through webs which provide bearing support and alignment for the drill steels and bits on a dynamic basis while the kerf is being cut and the webs also permit the drill steel to bend; thus providing clearance between the impact tool and the wall of the tunnel. The webs also provide control of the sideways motion of the bit, while at the same time, providing for full impact blows to be delivered to the working face.

Abstract: Apparatus and method for recovering resources from subterranean rock formations, particularly heat energy, and more particularly geothermal energy. A heat-drill, which has means associated therewith for removing some rock from the earth and forming other rock into shafts, drills into the earth and forms two shafts at the same time. Both shafts communicate with each other and with the surface and are used to circulate a drilling mud which passes through the drill body and carries off the rock being removed. The heating means is shaped in a coil or grid pattern and operates at a temperature well above the melting point of the rock, heating the rock it displaces to well above its melting point, while raising the average temperature of the total rock melted to slightly above its melting point. The drilling mud absorbs heat as it circulates and the absorbed heat is put to any desirable use, particularly by being recovered from the drilling mud by a heat-exchanger on the surface.