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37results about "Drilling without earth removal" patented technology

Building construction drilling equipment and method

PendingCN120626060ADrill bitsDrilling without earth removalArchitectural engineeringMechanical engineering
The invention relates to the technical field of pouring construction, in particular to building construction drilling equipment which comprises a drilling machine body. The rotating shaft is rotatably mounted on the drilling machine main body; the drilling device is fixedly installed at the end of the rotating shaft, and the drilling device is sequentially and coaxially sleeved with a rotary excavating structure from the lower end to the upper end along the rotating shaft, and the inner wall of the pile hole is cut to form a pile hole groove path; a plurality of expansion units capable of stretching out and drawing back in the radial direction are evenly distributed on the periphery of the grouting coating structure in the circumferential direction, and grouting holes are formed between the adjacent expansion units; the leveling structure comprises a plurality of leveling units which can be expanded in the radial direction, and the leveling units are connected with the expansion units; the technical problem that wet spraying materials of a traditional cast-in-place pile are poured only through dead weight and cannot be densely coated on the inner wall of a pile hole, a condensed supporting layer cannot be formed in real time, and consequently the inner wall of the pile hole is prone to shrinkage is solved.
Owner:QINGDAO JIANSHENG STEEL STRUCTURE CONSTR ENG CO LTD

Pull-back system for drilling tool

A rotary drill bit (200A) for use with a horizontal directional drill string. A coupler (206) at the proximal axial end is configured to attach the rotary drill bit to a gyrator at the distal end of the drill string. The cutting portion at the distal axial end is provided with a plurality of blades (204) having respective cones that operate to cut a wellbore in the ground when the rotary drill bit is rotated about the central axis. The plurality of blades project radially outward from a surface of the cutting portion such that the surface forms respective grooves (214) that are circumferentially staggered with the plurality of blades. A plurality of engagement features (212a) are positioned axially within the cutting portion and radially inward of the outer cutting diameter to facilitate attachment of a production device pull-back device (1000) between the plurality of blades without the need to remove the rotary drill bit or any portion of the rotary drill bit from the gyrator.
Owner:VERMEER MFG CO

Construction method of variable diameter drilling and reaming pile driver

This invention belongs to the field of engineering machinery technology and relates to a construction method for a variable-diameter drilling and reaming integrated pile driver. It solves the problem that existing drilling and reaming integrated pile drivers cannot change diameter. The construction method is based on a variable-diameter drilling and reaming integrated pile driver, which includes an active pipe, a driven pipe, an upper wing plate seat, a lower wing plate seat, and a reaming arm. The reaming arm is formed by connecting an upper wing plate and a lower wing plate. The upper wing plate is formed by connecting an upper wing plate and an upper wing plate link, and the lower wing plate is formed by connecting a lower wing plate and a lower wing plate link. The construction method determines the length of the reaming arm to be connected by adjusting the position of the upper wing plate seat on the gear key and the position of the lower wing plate seat on the driven pipe. Then, it adaptively adjusts the number of wing plate link connections. Through the coordinated cooperation between the components, it achieves reaming operations for different pile diameters, angles, and sizes, which is simple, convenient, and greatly improves construction efficiency.
Owner:齐迎春

Hydraulic reamer for horizontal anchor rod drilling

ActiveCN223177475UDrilling without earth removalHigh pressure waterReamer
The utility model belongs to the technical field of anchor rod drilling, and particularly relates to a hydraulic reamer for horizontal anchor rod drilling, which comprises a rod body used for being inserted into a drill hole, a flow channel is arranged in the rod body, one end of the flow channel inserted into the drill hole is closed, and the other end is communicated with a high-pressure water pump. The rod body is sleeved with a plurality of sets of elastic ring sleeves at intervals in the axial direction of the rod body, the two ends of each elastic ring sleeve and the outer wall face of the rod body are sealed so that a sealed interlayer can be formed between the outer wall face of the rod body and the inner wall face of each elastic ring sleeve, and a plurality of sets of water outlet holes in one-to-one correspondence with the elastic ring sleeves are formed in the rod body. And the flow channels are communicated with an interlayer formed between the corresponding elastic ring sleeve and the rod body through the water outlet holes. Water in the flow channel is pressurized, so that the elastic ring sleeve expands to extrude a soil body on the side wall of a drilled hole so as to form a string-bead-shaped anchor hole, the purpose of improving anchoring force is achieved, meanwhile, the anchor hole can be formed without deslagging work in the using process, using is convenient, the hole expanding efficiency is high, and the effect is good.
Owner:河南省远基岩土工程有限公司

A ground drilling robot

The application discloses a ground drilling robot. The robot comprises a body, the outer side of the body is provided with an extending mechanism, the extending mechanism comprises an extending sheet, a middle groove and a middle block, the extending sheet is slidingly arranged on one side of the body, the upper side of the extending sheet is provided with the middle groove, the surface of the middle groove is rotatably provided with the middle block, the edge of the body is provided with an unfolding mechanism, the unfolding mechanism comprises an unfolding strip, a supporting strip and an extending strip, the arrangement of the unfolding strip rotation can extrude the soil on the edge of the unfolding strip to the direction of the extending sheet, the soil at the position of the extending sheet is more filled, the extending sheet is supported and stabilized, the arrangement of the middle groove can store the soil, meanwhile, the friction with the soil can be increased, the rotatable arrangement of the middle block can loosen the soil in the middle groove, and the sampling soil can be separated.
Owner:UNIV OF SCI & TECH BEIJING

Tunneling device including flexible control section

A tunneling device includes a body assembly extending along a longitudinal axis, a tether, and a control section coupled between the body assembly and the tether. The control section includes a flexible shell defining a cavity, at least one control component in the cavity, and at least one tension member extending along the longitudinal axis and between the body assembly and the tether. The at least one tension member is arranged to transfer forces between the body assembly and the tether.
Owner:GE INFRASTRUCTURE TECH LLC

Directional drilling device

Directional drilling device for installing underground cables or tubes, comprising a housing having a drill space extending between two openings in sides of the housing for accommodating a drill string through the two openings, and defining a longitudinal drill axis; and a drive mechanism arranged in the housing for engagement with the drill string configured to move the drill string in a drilling direction along the longitudinal drill axis and configured to selectively rotate the drill string about the longitudinal drill axis to perform directional drilling; wherein the drive mechanism comprises a first clamping device for clamping the drill string; wherein the drive mechanism further comprises a second clamping device for clamping the drill string; wherein the first clamping device and the second clamping device are each configured to be arranged in a clamping state, in which the drill string is clamped by the respective clamping device, and in a release state, in which the drill string is movable with respect to the respective clamping device, wherein the drive mechanism is configured to move the clamping devices back and forth along the longitudinal drill axis, and wherein the directional drilling device comprises a control device operatively connected to the drive mechanism and the clamping devices for alternating movement of the clamping devices and for switching the clamping devices between the clamping state and the release state to perform directional drilling.
Owner:KORMEE BV

Ground drilling robot

ActiveCN121382180AWithdrawing sample devicesDrilling without earth removalStructural engineeringMechanical engineering
The invention discloses an earth drilling robot. Comprising a machine body, an extending mechanism is arranged on the outer side of the machine body, the extending mechanism comprises an extending piece, a middle groove and a middle block, the extending piece is arranged on one side of the machine body in a sliding mode, the middle groove is formed in the upper portion of the extending piece, the middle block is rotationally arranged on the surface of the middle groove, and an unfolding mechanism is arranged on the edge of the machine body. The unfolding mechanism comprises an unfolding strip, a supporting strip and an extending strip, the unfolding strip is rotationally arranged, soil on the edge of the unfolding strip can be extruded towards the extending piece, the soil at the position of the extending piece is more solid, the extending piece is stably supported, the soil can be stored through the middle groove, and the soil storage effect is improved. Meanwhile, the friction force with the soil can be increased, the soil in the middle groove can be loosened due to the rotatable arrangement of the middle block, and the sampled soil can be conveniently separated.
Owner:UNIV OF SCI & TECH BEIJING

A drilling device for ground construction

The present invention discloses a drilling device for ground construction, which relates to the technical field of ground drilling; it includes a drilling member, and a lateral movement assisting member is installed on the drilling member, and the lateral movement assisting member is used to prevent soil leakage during the lateral movement of the drilling member; a soil shifting member is installed on the lateral movement assisting member; the soil shifting member is used to shift the drilled soil; two outward expansion and extrusion members are installed on the lateral movement assisting member; the outward expansion and extrusion members are used to fit the hole wall; a downward pressing driving part is respectively installed on the two lateral movement assisting members; the downward pressing driving part is used to squeeze the two outward expansion and extrusion members to expand; to solve the problems that the existing drilling device for ground construction is not convenient for directly drilling and moving laterally, and the soil between adjacent holes is prone to collapse; by using the lateral movement assisting member in cooperation with the drilling member, the structure can be displaced laterally during actual drilling, and the drilling efficiency of the structure can be improved.
Owner:JIANG SU XIN YOU PENG KE JI YOU XIAN GONG SI

Directional boring system with an asymmetric impact bit

PCT designated stageWO2026024278A1Directional drillingDrilling without earth removalMechanical engineeringDirectional boring
A tunneling device (102) includes a body assembly (136) configured to travel through an underground location. The body assembly extends along a longitudinal axis (140). A tip (142) is coupled to the body assembly. The tip includes a tunneling tool configured to displace material and form a tunnel as the tip moves. The tip is positionable relative to the body assembly. The tip is arranged to extend at an angle relative to the longitudinal axis. At least one actuator (148) is coupled to the tip and configured to change a position of the tip about the longitudinal axis and redirect the tunneling device through the underground location. The tip is capable of rotating circumferentially about the longitudinal axis.
Owner:GE INFRASTRUCTURE TECH LLC

A sampling structure and sampling method for hydrogeological and environmental exploration

This invention discloses a sampling structure for hydrogeological and environmental geological exploration, relating to the field of hydrogeological and environmental geological exploration technology. It includes a limiting support, with rotating seats connected to both the left and right sides of the upper end of the limiting support. Both rotating seats are located at the front of the upper end of the limiting support. A support frame is rotatably connected to the front of the upper end of the limiting support via the two rotating seats, with the upper ends of the two rotating seats respectively connected to the left and right sides of the lower end of the support frame. A lifting crossbar is internally engaged at the upper end of the support frame. When the drill pipe contacts the ground and drilling begins, it locks, ensuring effective transmission of downward pressure, vibration, and rotation, thus improving drilling efficiency. When the drill pipe is pulled out, it unlocks promptly, moving only upwards without vibration or rotation, ensuring sampling integrity. When the drill pipe is completely pulled out, the connecting shaft and the drive gear shaft lock again, moving only upwards and vibrating without rotation, further improving sampling efficiency. This allows the sampling mechanism to automatically switch functions according to different drilling stages without human intervention.
Owner:HENAN FOURTH GEOLOGICAL & MINERAL INVESTIGATION INST CO LTD

Drilling soft robot and drilling method

PendingCN120592560ABorehole drivesDrilling without earth removalClassical mechanicsElectric machinery
The invention discloses a drilling soft-bodied robot and a drilling method.The drilling soft-bodied robot comprises a trunk part, a head part and a tail part, the trunk part comprises a head scaling ring, a tail scaling ring and a driving part, and the head scaling ring and the tail scaling ring are connected through a soft-bodied pipe; the head part comprises a head supporting ring and a drilling ring which are sequentially arranged, the tail part comprises a tail supporting ring, the head scaling ring, the tail scaling ring, the head supporting ring, the drilling ring and the tail supporting ring are all made of chiral metamaterials, and the flexible pipe is made of folded metamaterials. The motor drives the chiral metamaterials of the head part and the tail part to deform, creeping of the folded metamaterials of the trunk part in the axial direction is achieved, then creeping drilling of the robot in the axial direction is achieved, the drilling robot is simple in structure and capable of adapting to operation in a narrow space, disturbance to the soil environment during creeping advancing is small, and the working efficiency of the robot is improved. And the device is suitable for fine operation of underground soil.
Owner:EAST CHINA JIAOTONG UNIVERSITY +1

A penetration buffer damping device

The present invention discloses a penetration buffering and damping device, belonging to the field of in-situ penetration detection of extraterrestrial celestial bodies. The device includes a penetrator, a magnetic conductor is arranged around the non-penetrating end of the penetrator, a resistance-increasing plate connected to the penetrator is arranged on the lower end surface of the magnetic conductor, and a magnetic source structure for generating magnetic force on the magnetic conductor is arranged inside the non-penetrating end of the penetrator. The present invention uses the penetration buffering and resistance reduction method of the resistance-increasing plate and the electromagnetic structure, which has self-adaptability to the flying penetration speed, has a compact structure, reduces the probability of jumping, and the buffering resistance will be further reduced after the speed is reduced. It is applicable to the kinetic energy penetration detection of extraterrestrial celestial bodies with unknown terrain conditions, and takes into account the functional requirements of penetration depth and surface storage on the star.
Owner:SICHUAN AEROSPACE SYST ENG INST

Novel screw hole-forming insertion single body and composite precast pile forming construction method

PendingCN120797650AExcavationsDrilling without earth removalArchitectural engineeringCement slurry
The invention discloses a novel screw hole-forming insertion single body and a composite precast pile forming construction method, and relates to the field of civil engineering pile foundation construction. According to the construction method, a screw drill rotates and extrudes to form a hole, and a precast pile single body is inserted, or an implanted single body is compounded with a material in a preset hole to form the pile. The method specifically comprises the following steps that a pile hole is formed through rotary cutting and extrusion in the screw hole forming stage, cement paste or fine aggregate concrete is injected into the bottom of the pile synchronously during drill lifting, and a precast pile is inserted and implanted into the hole in a static pressure or hammering or vibration or other modes. The rock-entering high efficiency, environmental protection and high bearing performance of the screw pile and the high-grade concrete and pile forming quality advantages of the high-strength precast pile are fused, the bearing capacity of the pile foundation is remarkably improved, the pile foundation is suitable for various complex geological conditions, the construction efficiency is high, the environmental influence is small, and the economic benefit is obvious; and a novel pile foundation construction method with optimal comprehensive performance such as green, low carbon, environmental protection and energy conservation is really realized.
Owner:HANGZHOU KUNHONG ROCK FOUNDATION TECHNOLOGY CO LTD

Drilling rig for ground construction

The invention discloses a drilling device for ground construction, and relates to the technical field of ground drilling. Comprising a drilling part, a transverse moving auxiliary part is installed on the drilling part, and the transverse moving auxiliary part is used for preventing soil leakage when the drilling part moves transversely; a soil shifting part is mounted on the transverse moving auxiliary part; the soil shifting part is used for shifting the drilled soil; two external expansion extrusion pieces are mounted on the transverse moving auxiliary piece; the external expansion extrusion part is used for being attached to the hole wall. The two transverse moving auxiliary pieces are each provided with a downward pressing driving part. The pressing driving part is used for extruding the two external expansion extrusion pieces to expand; the problems that an existing drilling device for ground construction is inconvenient to directly and transversely drill and move, and soil between adjacent holes is prone to collapse are solved. And the transverse moving auxiliary part is matched with the drilling part, so that transverse displacement drilling of the structure can be facilitated during actual drilling, and the drilling efficiency of the structure can be improved.
Owner:JIANG SU XIN YOU PENG KE JI YOU XIAN GONG SI

Deployment of quasi-planar shock wave generators in association with seismic exploration

Disclosed is a geophysical or seismic exploration system. The system comprises a set of explosive device magazines configured for carrying a plurality of explosive device components, wherein the explosive device components are configurable to form individual explosive devices, and wherein each explosive device carries a set of explosive compositions and is configured for collimating an explosive shock wave produced thereby into a quasi-planar shock wave output from a distal end of the explosive device to produce a geophysical or seismic exploration wave. The system also includes a set of unmanned explosive device deployment support vehicles, wherein each unmanned explosive device deployment support vehicle comprises an aerial or land-based unmanned vehicle configured for carrying an explosive device magazine and delivering the explosive device magazine to a first in-field location at which each explosive device is deployable for carrying out a geophysical or seismic exploration operation.
Owner:ORICA INTERNATIONAL PTE LTD

Tunneling and navigation systems including controller configured to determine environmental characteristic

A system for use in navigating and / or forming a tunnel (104) includes a tunneling device (102) including a body assembly (134) and a fluid line (122) coupled to the body assembly. The body assembly includes a first and second section (142) that are configured to selectively adjust their size and move the body assembly through an underground location when a pressurized fluid is delivered to the body assembly through the fluid line. The system further includes at least one sensor (174, 176) coupled to the body assembly and / or the fluid line, configured to provide information related to an operating parameter of at least one of the first section of the body assembly or the second section of the body assembly. The system also includes a controller (116) configured to determine an environmental characteristic of the tunnel based on the information provided by the at least one sensor.
Owner:GE INFRASTRUCTURE TECH LLC

Drilling equipment for geotechnical engineering investigation and operating method thereof

ActiveCN120211623BDrilling rodsDrilling without earth removalScrew threadThreaded rod
The present invention discloses a drilling device for geotechnical engineering survey and an operating method thereof, and relates to the field of geotechnical engineering technology. The present invention comprises a bracket, the top of which is fixedly connected to a driving member 1, the output shaft of which is fixedly connected to a threaded rod, the outer wall of which is threadedly connected to a threaded sleeve, the side of which is slidably connected to the inner wall of the bracket, and the top of which is fixedly connected to a driving member 2. The present invention cooperates with a movable ring, a connecting ring, an L-shaped plate, a fixed block, an elastic telescopic rod, a fixed ring, an elastic telescopic disc, a connecting plate, a back pressure plate, a long groove, and a clamping rod, so that the elastic telescopic disc pushes the connecting plate to move away from the drilling column through its own elastic force, and the movement of the connecting plate drives the back pressure plate to resist the expanding shale formation, thereby avoiding the problem that the expansion of the shale formation will cause the aperture to become smaller, thereby causing the drilling equipment to get stuck.
Owner:SICHUAN INST OF GEOLOGICAL ENG INVESTIGATION

DRILL BROWS AND METHOD FOR MAKING A BOIL IN THE GROUND

Drill bucket with a tubular base body (20), on the upper side of which a connecting device to a drill rod is arranged and on the lower side of which a bottom (30) is hingedly mounted, wherein a cutting device (40) for removing soil material and at least one through-opening (32) are provided on the bottom (30), which is designed for the passage of removed soil material into an interior space (11) of the tubular base body (20), characterized in that at least one baffle wall (50) is provided in the interior space (11) of the tubular base body (20), wherein the at least one baffle wall (50) is inclined relative to a longitudinal axis of the tubular base body (20) and the distance of the at least one baffle wall (50) from the longitudinal axis decreases upwards, and that the baffle wall (50) extends substantially over the entire axial length of the interior space (11).the interior (11) of the tubular base body (20) is partially restricted and forms an impact surface for soil material taken up in the interior (11).
Owner:BAUER MASCH GMBH

Bioinspired horizontal self-burrowing device

ActiveUS12497839B2Drilling without earth removalStructural engineeringGranular media
A burrowing apparatus may comprise an anterior segment and a posterior segment coupled by a linear actuator that is configured to extend and contract the distance between the anterior segment and the posterior segment to effectuate horizontal translation of the burrowing apparatus in a granular medium. The anterior segment may further comprise a conical tip. The conical tip may be configured to rotate relative to the anterior segment, and the conical tip may be an auger. The rotation of the conical tip while the linear actuator extends and contracts may create kinetic asymmetry that may be beneficial to the net horizontal translation in the granular medium. The burrowing apparatus may be advantageously used in applications, for example, in geotechnical subsurface investigation, extraterrestrial exploration, underground contamination detection, and precision agriculture.
Owner:THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIV OF ARIZONA

A drag-reducing deep drilling auxiliary device and method for goaf follow-pipe impact

ActiveCN119957086BDrilling without earth removalSealing/packingStructural engineeringPipe
The present invention relates to a drag-reducing deep drilling auxiliary device and method for follow-up pipe impact in goaf, which belongs to the field of mining and underground engineering construction; it solves the problem that the friction generated between the pipe wall and the side wall of the goaf borehole during the follow-up pipe drilling process interferes with the smooth progress of the follow-up pipe impact operation in the goaf; the technical solution: comprises a pipe body placed in the goaf and an axis core arranged in the pipe body, an air bag is arranged between the pipe body and the axis core, a plurality of first through holes are arranged on the pipe body, an expansion sleeve is arranged in each first through hole, the expansion sleeve is matched with the first through hole, the expansion sleeve and the air bag cooperate with each other to make the expansion sleeve move along the axial direction of the first through hole, the expansion sleeve is provided with a spray hole, the spray holes on the two expansion sleeves are connected to each other through a curing agent pipeline, the curing agent pipeline is also connected to a curing agent storage device, the air bag is connected to a compressed air pipeline, and the compressed air pipeline is connected to an inflation device; the present invention is applied to the follow-up pipe impact operation in goaf.
Owner:SHENHUA SHENDONG COAL GRP +1

Integrated housing electronics for wireless telemetry system of drilling unit

ActiveUS12662933B2ConstructionsDrilling without earth removalWireless transmissionData signal
A drill string tool can be used in a drilling system, with the drill string tool configured for wireless communication. The drill string can include a central structural member, a wire coil, an antenna core, and a wear protection shell. The antenna core can surround the central structural member. The wire coil can be positioned around an outside of the antenna core, with the antenna core and the wire coil forming an antenna assembly. The antenna assembly can be configured to wirelessly transmit the data signals from electronics associated with the drill string tool. The wear protection shell can surround the antenna assembly and be configured to minimize a formation of eddy currents therein during operation of the antenna assembly. In an embodiment, the drill string tool can be a drill head wireless transmitter.
Owner:UNDERGROUND MAGNETICS INC

Tunneling device including expandable section

PendingEP4616043A2Drill bitsConstructions
A tunneling device includes a body assembly, an expander coupled to the body assembly and extending along a longitudinal axis, and a tip coupled to the expander. The expander is disposed between a force transmitter and the tip. The expander is expandable in a direction perpendicular to the longitudinal axis between a first configuration having a first width measured perpendicular to the longitudinal axis and a second configuration having a second width measured perpendicular to the longitudinal axis. The tip has a width measured perpendicular to the longitudinal axis. The first width of the expander is equal to or less than the width of the tip. The force transmitter is configured to deliver a force through the expander to the tip to move the tip in a direction parallel to the longitudinal axis with the expander in the second configuration.
Owner:GE VERNOVA INFRASTRUCTURE TECHNOLOGY LLC

Advanced drill string communication system, components and methods

A drill string communication system is described. An uphole transceiver can couple a signal onto the drill string at a power that is always greater that a selectable power for a downhole signal. Communication from a drill rig to an inground tool can be re-initiated using a maximum uphole transmit power of an uphole transceiver. A procedure can establish a new set of transmission parameters for a drill string signal to establish communication between the drill rig and the inground tool. The system can include a walkover locator that receives an active / inactive status-controlled electromagnetic locating signal. Responsive to a locating signal degradation, a reconfiguration command can modify the locating signal. The uphole transceiver and a downhole transceiver can automatically modify at least one parameter of a downhole signal. An uphole receiver can apply a compensation response to a transferred signal to compensate for a drill string channel transfer function.
Owner:MERLIN TECH INC

Underground water drilling and sampling device

The invention provides an underground water drilling and sampling device, and belongs to the technical field of soil drilling. The underground water drilling and sampling device comprises a supporting frame, a lifting plate and a drilling mechanism, the lifting plate is slidably mounted on the side wall of the supporting frame, a lead screw is rotatably mounted in an inner cavity of the supporting frame, and a threaded block is fixedly mounted on the surface of the lifting plate and is in threaded connection with the lead screw. The drilling mechanism is arranged, a second motor can drive a second gear to rotate so as to drive a first gear boss to rotate, spline teeth and a drill rod are driven to rotate through a spline groove, meanwhile, a first motor drives a lead screw to rotate, a threaded block drives a lifting plate to move downwards, and drilling can be conducted through a drill bit; when the first arc-shaped protruding block makes contact with the second arc-shaped protruding block, the driving frame can be driven to drive the drill rod to move upwards, and therefore the first connecting rod drives the arc-shaped reaming pressing plate to extrude outwards, the well wall is compacted, collapse is prevented, and use is convenient.
Owner:SHANDONG PROVINCIAL GEOLOGICAL & MINERAL EXPLORATION & DEV BUREAU 801 HYDROGEOLOGY & ENG GEOLOGY BRIGADE (SHANDONG PROVINCIAL GEOLOGICAL & MINERAL ENG EXPLORATION INST)

Drilling equipment for geotechnical engineering investigation and operation method thereof

ActiveCN120211623ADrilling rodsDrilling without earth removalScrew threadThreaded rod
The invention discloses drilling equipment for geotechnical engineering investigation and an operation method of the drilling equipment, and relates to the technical field of geotechnical engineering. The device comprises a support, the top of the support is fixedly connected with a first driving part, an output shaft of the first driving part is fixedly connected with a threaded rod, the outer wall of the threaded rod is in threaded connection with a threaded sleeve plate, the side face of the threaded sleeve plate is slidably connected to the inner wall of the support, and the top of the threaded sleeve plate is fixedly connected with a second driving part. Through cooperation of a moving ring, a connecting ring, an L-shaped plate, a fixing block, an elastic telescopic rod, a fixing ring, an elastic telescopic disc, a connecting plate, a reverse pressing plate, a long groove and a clamping rod, the elastic telescopic disc can push the connecting plate to move in the direction away from a drilling column through the elasticity of the elastic telescopic disc; and the movement of the connecting plate can drive the reverse pressing plate to abut against the expanded shale stratum, and therefore the problem that due to expansion of the shale stratum, the hole diameter becomes small, and drilling equipment gets stuck is solved.
Owner:SICHUAN INST OF GEOLOGICAL ENG INVESTIGATION