Reaming device and reaming method for geotechnical engineering investigation

Abstract

The invention provides a reaming device and a reaming method for geotechnical engineering investigation, and relates to the technical field of investigation engineering machinery. The reaming device comprises a supporting base, a main frame body, a drill rod assembly, a soil taking assembly and a drill bit with a soil drilling assembly and a releasable soil storage assembly. By designing the supporting base, the main frame body, the drill rod assembly, the soil taking assembly and the drill bit provided with the soil drilling assembly and the releasable soil storage assembly, the releasable soil storage assembly can collect crushed rock soil in the reaming process, and the drill bit extends out of the soil taking assembly when upwards leaving a new hole, so that the soil taking assembly can take out the new hole; the releasable soil storage assembly is opened by the matcher on the soil taking assembly, and the crushed rock soil falls on the soil taking assembly, so that the crushed rock soil is conveniently taken out, and efficient and rapid reaming operation can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of exploration engineering machinery, and in particular to a geotechnical engineering exploration hole expanding device and a hole expanding method. Background Art

[0002] In order to ensure the quality of ground drilling during geological exploration, it is often necessary to drill a guide hole first. The axial direction of the guide hole is easy to control, and then a coaxial new hole (expanded hole) is opened with the guide hole as a guide. Generally, a small-sized spiral drill is used to open the guide hole. The diameter of the guide hole is 20-40cm. The opening resistance is small and it is easy to control the opening direction. Then, an reaming drill bit with a diameter of 80-100cm is used to expand the hole. The guiding part at the bottom of the reaming drill bit can be kept coincident with the original hole (the opened guide hole), so that the new hole is highly coaxial with the original hole, thereby ensuring the quality of the drilling.

[0003] The reaming drill bits currently in use only have the purpose of reaming holes. In actual use, they need to be used in conjunction with slag removal equipment. The slag produced by reaming holes may enter the original hole, affecting the cooperation between the guiding part at the bottom of the reaming drill bit and the original hole, making the reaming process complicated, the cycle long, and the hole quality poor (position accuracy). For this reason, the present invention provides a geotechnical engineering survey reaming device and reaming method. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a geotechnical engineering survey reaming device and reaming method, which solves the problem that the currently used reaming drill bits only have the purpose of reaming and need to be used in conjunction with slag removal equipment in actual use. The slag produced by reaming may enter the original hole, affecting the coordination between the guiding part at the bottom of the reaming drill bit and the original hole, making the reaming process complicated, the cycle long, and the hole quality poor (position accuracy).

[0005] To achieve the above purpose, the present invention provides a geotechnical engineering survey and reaming device, comprising a support seat and a main frame, wherein one side of the main frame close to the bottom end is rotatably mounted with the support seat, and a hydraulic telescopic arm for adjusting the angle of the main frame is installed between the main frame and the support seat; further comprising a drill rod assembly and a soil taking assembly, wherein the drill rod assembly is slidably connected with the main frame, and the drill rod assembly is controlled to slide on the main frame by a multi-stage hydraulic telescopic member on the main frame, and a drill bit is movably mounted on the bottom end of the drill rod assembly; the soil taking assembly is installed near the bottom end of the main frame, and the soil taking assembly has a telescopic soil receiving bucket;

[0006] The drill bit includes a soil drilling assembly and a releasable soil storage assembly, the soil storage assembly is located below the soil drilling assembly, the soil storage assembly includes a bearing cylinder, a suspension rod and a double cone head assembly, the bearing cylinder is rotatably connected to the central drill rod of the soil drilling assembly, the suspension rod is connected to the central drill rod of the soil drilling assembly through an elastic connector, the double cone head assembly is rotatably connected to the suspension rod, and the top end of the double cone head assembly cooperates with the bottom end of the bearing cylinder; a fitting device that cooperates with the suspension rod is provided in the soil receiving bucket;

[0007] The bearing cylinder is used to collect broken rock and soil during the hole expansion process. When the drill bit is pulled out of the drill hole, the soil receiving bucket extends to the bottom of the drill bit, and the upward movement of the hanging rod is limited by the adapter. The hanging rod is pulled, causing the double cone head assembly and the bearing cylinder to move relative to each other, and the bottom end of the bearing cylinder is opened, and the broken rock and soil in the bearing cylinder falls into the soil receiving bucket.

[0008] A better technical solution of the present invention: the support seat includes a fixed body / movable body and a cross frame body, the cross frame body is fixedly installed on the top of the fixed body / movable body, and the first end of the cross frame body extends out of the side of the fixed body / movable body; the first end of the cross frame body is fixedly connected to a first connecting head, the first connecting head is rotatably installed with a second connecting seat on the side of the main frame body, both sides of the second end of the cross frame body are fixedly connected to the first connecting seat, an auxiliary support is rotatably installed on the first connecting seat, and an adjustable leg is fixedly installed on the end of the auxiliary support away from the cross frame body.

[0009] The preferred technical solution of the present invention is as follows: the main frame includes a vertical frame body, a top plate is fixedly installed on the top of the vertical frame body, the multi-stage hydraulic telescopic member is fixedly installed on the top of the top plate, the left and right sides of the front side of the vertical frame body are fixedly connected with sliding side plates, the front side of the vertical frame body and located between the two sliding side plates are fixedly connected with two parallel first sliding blocks, the front side of the vertical frame body and located between the two first sliding blocks are provided with a sliding opening, the telescopic part of the multi-stage hydraulic telescopic member is located on the inner side of the sliding opening, and the back side of the vertical frame body and near the bottom end of the vertical frame body is fixedly connected with a second connecting seat; the second connecting seat is rotatably installed with the support seat; the side of the vertical frame body and located below the second connecting seat is provided with a rectangular opening for the soil taking assembly to pass through.

[0010] A better technical solution of the present invention: the drill rod assembly includes a hydraulic motor assembly and a longitudinal plate member, the bottom output end of the hydraulic motor assembly is fixedly installed with a drill rod member, and the bottom end of the drill rod member is fixedly installed with a third connecting seat; the first side surface of the longitudinal plate member is fixedly connected to the outer shell of the hydraulic motor assembly through a rib frame, the second side surface of the longitudinal plate member is fixedly connected to a second sliding seat, the second sliding seat is slidably installed with the first sliding block, the longitudinal plate member is located on the inner side of two sliding side plates, the second side surface of the longitudinal plate member is fixedly connected to a sliding frame, the sliding frame is located on the inner side of the sliding opening, and the bottom telescopic end of the multi-stage hydraulic telescopic member is fixedly installed with the sliding frame.

[0011] A better technical solution of the present invention: the soil drilling assembly includes a first rod body and a disc body, the top of the first rod body is provided with a connecting female head, the top of the first rod body is threadedly installed with a second connecting head, the second connecting head and the third connecting seat at the bottom end of the drill rod are movably installed by pins; the disc body is fixedly connected to the side of the first rod body, the bottom of the disc body is fixedly connected with a fourth connecting seat located on the outside of the first rod body, the bottom of the fourth connecting seat is rotatably installed with a reaming head, and the fourth connecting seat and the reaming head are both arranged in a ring shape in multiple numbers; a plurality of reinforcing ribs are fixedly connected between the disc body and the first rod body.

[0012] A better technical solution of the present invention: the top end of the bearing cylinder is rotatably connected to the part of the first rod body located below the disk body through a center frame, and the outer side of the bearing cylinder is fixedly connected with a plurality of annularly distributed limiting ribs; the top end of the suspension rod is fixedly connected with a spring, and the top end of the spring is fixedly connected with a mounting head, a mounting hole is provided at the bottom end of the first rod body, the mounting head is located on the inner side of the mounting hole, and the mounting head and the mounting hole are connected by a transverse plug rod, and the transverse plug rod is located above the disk body.

[0013] A more preferred technical solution of the present invention is as follows: an extended sliding piece is fixedly connected to the outer side of the double cone head assembly, a sliding groove is provided on the inner side of the bearing cylinder, and the extended sliding piece is slidably matched with the sliding groove.

[0014] The preferred technical solution of the present invention is as follows: the soil taking assembly comprises a connecting block and a horizontal hydraulic telescopic member, the top of the connecting block is fixedly connected to the main frame, and a vertical plate is fixedly installed on the bottom of the connecting block; the horizontal hydraulic telescopic member is fixedly connected to the vertical plate, and the bottom of the soil receiving bucket is fixedly connected to the telescopic end of the horizontal hydraulic telescopic member;

[0015] The preferred technical solution of the present invention is as follows: the adapter is a U-shaped bracket, the U-shaped bracket is fixedly connected to the inner bottom of the soil receiving bucket, a guiding bevel is provided on the inner side of the front end of the U-shaped bracket; an annular opening is provided on the side of the suspension rod and below the double cone head assembly; a reinforcing plate is fixedly connected between the U-shaped bracket and the soil receiving bucket.

[0016] The present invention also provides a geotechnical engineering survey hole enlarging method, which uses the above-mentioned geotechnical engineering survey hole enlarging device to enlarge the hole, and specifically comprises the following steps:

[0017] S1, control the drill rod assembly to be in the drilling state, at this time the hydraulic telescopic arm adjusts the main frame to be in a vertical state, and the soil receiving bucket of the soil taking assembly is in a retracted state;

[0018] S2. After preparation, the hole is expanded. The multi-stage hydraulic telescopic member pushes the drill rod assembly downward, and the drill bit is driven to rotate synchronously by the drill rod assembly. The releasable soil storage assembly of the drill bit guides the drill bit to the original hole position. The rotating drill soil assembly expands the hole. The crushed soil generated during the expansion process falls into the bearing cylinder of the releasable soil storage assembly. When the crushed soil in the bearing cylinder is full, the drill rod assembly stops working, and the multi-stage hydraulic telescopic member pushes the drill rod assembly upward;

[0019] S3. When the drill bit is pulled out of the hole, the soil taking assembly controls the soil receiving bucket to extend, and the soil receiving bucket blocks the new hole below. The adapter cooperates with the suspension rod to limit the upward movement of the suspension rod. The suspension rod is pulled, so that the double cone head assembly and the bearing cylinder move relative to each other. The bottom end of the bearing cylinder opens, and the crushed rock and soil in the bearing cylinder is released into the soil receiving bucket, and the soil receiving bucket guides the crushed soil to fall on the ground / bucket truck.

[0020] The present invention has the following beneficial effects:

[0021] 1. The present invention designs a support seat, a main frame, a drill rod assembly, a soil taking assembly, and a drill bit having a soil drilling assembly and a releasable soil storage assembly, so that during the hole expansion process, the releasable soil storage assembly can collect crushed rock and soil, and when the drill bit moves upward away from the new hole, the soil taking assembly is extended, and the adapter on the soil taking assembly opens the releasable soil storage assembly, and the crushed rock and soil falls on the soil taking assembly, thereby facilitating the removal of the crushed rock and soil, thereby realizing efficient and rapid hole expansion operations.

[0022] 2. The present invention adopts a double cone head assembly to block the bottom end of the bearing cylinder. The top cone of the double cone head assembly can block the bottom end of the bearing cylinder, and the bottom cone of the double cone head assembly can play a good guiding role, thereby improving the axial coincidence between the new hole and the original hole and improving the success quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional view of a geotechnical engineering survey and hole-expanding device proposed by the present invention;

[0024] Figure 2 A front view of a geotechnical engineering survey and hole-expanding device proposed by the present invention;

[0025] Figure 3A side view of a geotechnical engineering survey and hole-expanding device proposed by the present invention;

[0026] Figure 4 A three-dimensional view of a main frame of a geotechnical engineering survey and hole-expanding device proposed by the present invention;

[0027] Figure 5 A three-dimensional view of a drill rod assembly of a geotechnical engineering survey and hole-expanding device proposed by the present invention;

[0028] Figure 6 for Figure 5 A partial enlarged view in the middle;

[0029] Figure 7 A three-dimensional view of a soil taking component of a geotechnical engineering investigation and hole enlarging device proposed by the present invention;

[0030] Figure 8 A three-dimensional view of a drill bit of a geotechnical engineering survey and hole-reaming device proposed by the present invention;

[0031] Fig. 9 A cross-sectional view of a drill bit of a geotechnical engineering survey and hole-reaming device proposed by the present invention;

[0032] Fig.10 for Fig. 9 A partial enlarged view of point B in the middle;

[0033] Fig.11 The present invention provides a stereoscopic view of a double cone head assembly and a suspension rod of a geotechnical engineering investigation and hole expansion device.

[0034] Among them, 1. Support seat; 101. Fixed body / movable body; 102. Horizontal frame; 103. First connecting seat; 104. First connecting head; 105. Auxiliary support; 106. Adjustable legs; 2. Main frame; 201. Vertical frame; 202. Top plate; 203. Multi-stage hydraulic telescopic member; 204. First sliding block; 205. Sliding side plate; 206. Second connecting seat; 207. Sliding port; 3. Drill rod assembly; 301. Sliding frame; 302. Second sliding seat; 303. Vertical plate; 304. Rib frame; 305. Hydraulic motor assembly; 306. Drill rod member; 307. Third connecting seat; 4. Drill bit; 401. First rod body; 401a. Connecting female head; 401b, mounting hole; 402, disc; 403, reinforcing rib; 404, second connecting head; 405, fourth connecting seat; 406, reaming head; 407, center frame; 408, bearing cylinder; 409, sliding groove; 4010, suspension rod; 4011, double cone head assembly; 4012, extended sliding member; 4013, annular mouth; 4014, spring; 4015, mounting head; 4016, horizontal plug rod; 4017, limiting rib; 5, soil taking assembly; 501, connecting block; 502, vertical plate; 503, horizontal hydraulic telescopic member; 504, soil receiving bucket; 505, U-shaped bracket; 505a, guiding oblique mouth; 506, reinforcing plate; 6, hydraulic telescopic arm. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1:

[0037] like Figure 1-Figure 11As shown, an embodiment of the present invention provides a geotechnical engineering survey and reaming device, comprising: a support seat 1, a main frame body 2, a drill rod assembly 3, a soil taking assembly 5, and a drill bit 4 having a soil drilling assembly and a releasable soil storage assembly. The side of the main frame body 2 close to the bottom end is rotatably mounted with the support seat 1, and a hydraulic telescopic arm 6 for adjusting the angle of the main frame body 2 is installed between the main frame body 2 and the support seat 1. The hydraulic telescopic arm 6 can adjust the main frame body 2 and the support seat 1 to an angle of about 90°, that is, the support seat 1 is in a horizontal state on the ground, and the main frame body 2 is in a vertical state, ensuring that the drill rod member 306 of the drill rod assembly 3 is in a vertical state. The hydraulic telescopic arm 6 can also adjust the main frame body 2 and the support seat 1 to a clamp of about 45°. At this time, the main frame body 2 is in an inclined storage state obliquely upward, which is convenient for the overall movement of the geotechnical engineering survey and reaming device. The drill rod assembly 3 is slidably connected to the main frame body 2, and through the multi-stage hydraulic telescopic member 20 on the main frame body 2 3 controls the drill rod assembly 3 to slide on the main frame 2, and a drill bit 4 is movably installed at the bottom end of the drill rod assembly 3. The drill rod assembly 3 is driven to slide on the main frame 2 by the multi-stage hydraulic telescopic member 203, and the drill rod member 306 is driven to rotate by the hydraulic motor group of the drill rod assembly 3, thereby driving the drill bit 4 to rotate, so as to realize the action of controlling the drill bit 4 to drill downward and take out upward. The soil taking assembly 5 is installed near the bottom end of the main frame 2, and the soil taking assembly 5 has a retractable soil receiving bucket 504. The drill bit 4 includes a soil drilling assembly and a releasable soil storage assembly. A fitting device that cooperates with the releasable soil storage assembly is arranged in the soil receiving bucket 504. When the fitting device cooperates with the releasable soil storage assembly, the releasable soil storage assembly releases the retained broken rock and soil.

[0038] When in use, the hydraulic telescopic arm 6 adjusts the main frame 2 to a vertical state, and then the hydraulic motor group of the drill rod assembly 3 drives the drill rod component 306 to rotate, thereby driving the drill bit 4 to rotate, and the multi-stage hydraulic telescopic component 203 drives the drill rod assembly 3 to slide as a whole under the main frame 2, and the drill bit 4 moves downward with the drill rod assembly 3 to complete the downward hole expansion and drilling. When the releasable soil storage component is full of broken rock and soil, the hydraulic motor group of the drill rod assembly 3 stops working, and the multi-stage hydraulic telescopic component 203 drives the drill rod assembly 3 to slide as a whole on the main frame 2, and the drill bit 4 is pulled out of the new hole (the expanded hole). The soil receiving bucket 504 of the soil taking component 5 extends out, and the soil receiving bucket 504 is located below the drill bit 4. When the adapter in the soil receiving bucket 504 cooperates with the releasable soil storage component, the releasable soil storage component releases the retained broken rock and soil, and the broken rock and soil fall on the soil receiving bucket 504, and then slide down along the soil receiving bucket 504. The broken soil can be transported to a predetermined position for storage by bucket trucks, conveyor belts and other equipment. This process does not require the use of slag discharge equipment (equipment for discharging slag from the inside of the new hole), thereby simplifying the hole expansion process, shortening the hole expansion cycle, and avoiding the problem of broken soil affecting the hole quality during the slag discharge process, thereby improving the hole quality.

[0039] In the first embodiment, Figure 1The support seat 1 comprises a fixed body / movable body 101, a cross frame body 102, an auxiliary support 105 and an adjustable leg 106. The fixed body / movable body 101 can be a load-bearing vehicle (cart), a movable main body or a fixed assembly bracket, etc. The fixed body / movable body 101 plays a role of stable support, the cross frame body 102 is fixedly installed on the top of the fixed body / movable body 101, and the first end of the cross frame body 102 extends out of the side of the fixed body / movable body 101, the first end of the cross frame body 102 is fixedly connected with a first connector 104, the first connector 104 is rotatably installed with a second connector 206 on the side of the main frame body 2, the second end of the cross frame body 102 is fixedly connected with a first connector 103 on both sides, the auxiliary support 105 is rotatably installed on the first connector 103, and the end of the auxiliary support 105 away from the cross frame body 102 is fixedly installed with an adjustable leg 106.

[0040] When the geotechnical engineering survey and reaming device is performing reaming operation, in order to ensure the stability of the fixed body / movable body 101, the auxiliary supports 105 on both sides are unfolded, and the bottom of the adjustable legs 106 is adjusted to stably support on the ground.

[0041] In the first embodiment, Figure 1 and Figure 4 As shown, the main frame body 2 includes a vertical frame body 201, and a second connecting seat 206 is fixedly connected to the back side of the vertical frame body 201 and close to the bottom end of the vertical frame body 201. The second connecting seat 206 is rotatably installed with the support seat 1 to realize the rotatable connection between the vertical frame body 201 and the support seat 1. A top plate 202 is fixedly installed on the top of the vertical frame body 201, and a multi-stage hydraulic telescopic member 203 is fixedly installed on the top of the top plate 202. The telescopic end of the multi-stage hydraulic telescopic member 203 can push the drill rod assembly 3 to slide as a whole. The left and right sides of the front side of the vertical frame body 201 are fixedly connected with sliding side plates 205. Two parallel first sliding blocks 204 are fixedly connected to the front side of the vertical frame body 201 and located between the two sliding side plates 205. The first sliding block 204 is provided to facilitate the connection of the drill rod assembly 3. The sliding side plate 205 is used to block and reduce / avoid the entry of broken soil into the first sliding block 204, which affects the connection between the first sliding block 204 and the drill rod assembly 3. A sliding opening 207 is provided on the front side of the vertical frame body 201 and located between the two first sliding blocks 204. The telescopic part of the multi-stage hydraulic telescopic member 203 is located on the inner side of the sliding opening 207.

[0042] In order to facilitate the installation of the soil-taking assembly 5 , a rectangular opening for the soil-taking assembly 5 to pass through is provided on the side of the vertical frame body 201 and below the second connecting seat 206 .

[0043] In the first embodiment, Figure 5 and Figure 6As shown, the drill rod assembly 3 includes a hydraulic motor assembly 305, a longitudinal plate 303, a drill rod member 306 and a second sliding seat 302; the hydraulic motor assembly 305 uses a TMS series hydraulic motor, which is a low-speed and high-torque motor. The bottom output end of the hydraulic motor assembly 305 is fixedly installed with a drill rod member 306, and the bottom end of the drill rod member 306 is fixedly installed with a third connecting seat 307. The third connecting seat 307 is used to connect the drill bit 4, and the hydraulic motor assembly 305 drives the drill rod member 306 and then drives the drill bit 4 to rotate. The first side surface of the longitudinal plate 303 is fixedly connected to the casing of the hydraulic motor assembly 305 through the rib frame 304, and the second side surface of the longitudinal plate 303 is fixedly connected to the second sliding seat 302, and the second sliding seat 302 is slidably installed with the first sliding block 204. The longitudinal plate 303 is located on the inner side of the two sliding side plates 205, and the two sliding side plates 205 play a role of retaining soil. The second side surface of the longitudinal plate 303 is fixedly connected to the sliding frame 301, and the sliding frame 301 is located on the inner side of the sliding opening 207. The bottom telescopic end of the multi-stage hydraulic telescopic component 203 is fixedly installed with the sliding frame 301, and the multi-stage hydraulic telescopic component 203 pushes the sliding frame 301, thereby pushing the longitudinal plate 303 and the hydraulic motor assembly 305 to move downward / upward, and the second sliding seat 302 is slidably connected with the first sliding block 204 to play a guiding role.

[0044] In the first embodiment, Figure 8 and Fig.11 As shown, the drill bit includes a first rod body 401, a plate body 402, a fourth connection seat 405 and a reaming head 406. A connecting female head 401a is provided on the top of the first rod body 401, a second connecting head 404 is threadedly installed on the top of the first rod body 401, and the second connecting head 404 and the third connection seat 307 at the bottom end of the drill rod 306 are movably installed through pins, so that the first rod body 401 and the drill rod 306 can transmit rotation, and the first rod body 401 and the drill rod 306 can generate a small angle of movement, such as Figure 6 As shown in the figure, the third connection seat 307 and the second connection head 404 are arranged, and the third connection seat 307 can rotate around the pin axis relative to the second connection head 404. The disk body 402 is fixedly connected to the side of the first rod body 401, and the bottom of the disk body 402 and the outer side of the first rod body 401 are fixedly connected with the fourth connection seat 405, and the bottom of the fourth connection seat 405 is rotatably installed with a reaming head 406, and the fourth connection seat 405 and the reaming head 406 are both arranged in a ring.

[0045] The disc 402, the fourth connection seat 405, and the reaming head 406 rotate together with the first rod 401, and the reaming head 406 drills into the rock and soil below to achieve the purpose of reaming. In order to increase the connection strength between the disc 402 and the first rod 401, a plurality of groups of reinforcing ribs 403 are fixedly connected between the disc 402 and the first rod 401.

[0046] In the first embodiment, Figure 8 and Fig. 9 As shown, the releasable soil storage assembly includes: a bearing cylinder 408, a suspension rod 4010 and a double cone head assembly 4011. The top of the bearing cylinder 408 is rotatably connected to the portion of the first rod 401 located below the disk 402 through a center frame 407. The outer side of the bearing cylinder 408 is fixedly connected to a plurality of annularly distributed limiting ribs 4017. During the hole expansion process, the bearing cylinder 408 is pressed downward and inserted into the original hole. The design of the limiting ribs 4017 prevents the bearing cylinder 408 from rotating with the first rod 401. The suspension rod 4010 is provided with a double cone head assembly 4011. The top of 010 is fixedly connected with a spring 4014, and the top of the spring 4014 is fixedly connected with a mounting head 4015. A mounting hole 401b is opened at the bottom end of the first rod body 401, and the mounting head 4015 is located on the inner side of the mounting hole 401b, and the mounting head 4015 is connected to the mounting hole 401b through a transverse plug rod 4016, and the transverse plug rod 4016 is located above the disk body 402, the double-cone head assembly 4011 is rotatably connected to the suspension rod 4010, and the top of the double-cone head assembly 4011 cooperates with the bottom port of the supporting cylinder 408. An annular opening 4013 is provided on the side of the suspension rod 4010 and below the double-cone head assembly 4011. The annular opening 4013 is convenient for cooperation with the U-shaped bracket 505 to limit the upward movement of the suspension rod 4010. When the releasable soil storage assembly moves upward as a whole, the suspension rod 4010 is pulled and the spring 4014 is elongated, so that the double-cone head assembly 4011 and the bearing cylinder 408 move relative to each other, that is, the double-cone head assembly 4011 cannot block the bottom end of the bearing cylinder 408, and the crushed rock and soil fall from the gap between the bottom ends of the double-cone head assembly 4011 and the bearing cylinder 408.

[0047] In the first embodiment, Fig. 9 As shown, the outer side of the double cone head assembly 4011 is fixedly connected with an extended sliding member 4012, and the inner side of the bearing cylinder 408 is provided with a sliding groove 409, and the extended sliding member 4012 is slidably matched with the sliding groove 409. By relying on the sliding cooperation between the extended sliding member 4012 and the sliding groove 409, the double cone head assembly 4011 and the bearing cylinder 408 cannot rotate relative to each other.

[0048] In the first embodiment, Figure 7As shown, the soil taking assembly 5 includes a connecting block 501, a vertical plate 502, a soil receiving bucket 504, a horizontal hydraulic telescopic member 503 and a U-shaped bracket 505. The top of the connecting block 501 is fixedly connected to the main frame 2, the vertical plate 502 is fixedly installed on the bottom of the connecting block 501, the connecting block 501 and the vertical plate 502 both play a connecting role, the horizontal hydraulic telescopic member 503 is fixedly connected to the vertical plate 502, the bottom of the soil receiving bucket 504 is fixedly connected to the telescopic end of the horizontal hydraulic telescopic member 503, the U-shaped bracket 505 is fixedly connected to the inner bottom of the soil receiving bucket 504, and a guiding oblique opening 505a is provided on the inner side of the front end of the U-shaped bracket 505.

[0049] The horizontal hydraulic telescopic member 503 pushes the soil receiving bucket 504 to move horizontally as a whole, and the U-shaped bracket 505 moves horizontally together with the soil receiving bucket 504. The U-shaped bracket 505 can be clamped at the annular opening 4013 on the side of the suspension rod 4010. As the drill bit 4 continues to move upward, the suspension rod 4010 and the double cone head assembly 4011 can be pulled downward relative to the bearing cylinder 408. A reinforcing plate 506 is fixedly connected between the U-shaped bracket 505 and the soil receiving bucket 504, and the reinforcing plate 506 is used to increase the connection strength between the U-shaped bracket 505 and the soil receiving bucket 504.

[0050] Embodiment 2 provides a geotechnical engineering investigation and hole enlargement method, using the geotechnical engineering investigation and hole enlargement device in embodiment 1, specifically comprising the following steps:

[0051] S1. Control the drill rod assembly to be in the drilling state, specifically: the hydraulic telescopic arm adjusts the main frame to be in a vertical state, and the soil receiving bucket of the soil taking assembly is in a retracted state; to ensure that the newly expanded hole is in a vertical state.

[0052] S2, the process of hole expansion, specifically: the multi-stage hydraulic telescopic parts push the drill rod assembly downward, and the drill rod assembly drives the drill bit to rotate synchronously, the drill bit's releasable soil storage assembly guides the drill bit to the original hole position, the rotating drill soil assembly expands the hole, and the broken soil generated during the hole expansion falls into the releasable soil storage assembly. When the broken soil in the releasable soil storage assembly is full, the drill rod assembly stops working, and the multi-stage hydraulic telescopic parts push the drill rod assembly upward. The hole expansion action can be completed, and the broken rock and soil generated by the hole expansion is collected by the releasable soil storage assembly, and there is no need to use slag removal equipment. The broken rock and soil generated by the hole expansion will not affect the original hole.

[0053] S3, soil taking process, specifically: when the drill bit is pulled out of the drill hole, the soil taking assembly controls the soil receiving bucket 504 to extend, the soil receiving bucket 504 blocks the new hole below, and the U-shaped bracket 505 clamps the annular opening 4013 below the main suspension rod 4010, which can limit the suspension rod 4010 from moving upward. When the releasable soil storage assembly moves upward as a whole, the suspension rod 4010 is pulled, and the spring 4014 is stretched, so that the double-cone head assembly 4011 and the bearing cylinder 408 move relative to each other, that is, the double-cone head assembly 4011 cannot block the bottom end of the bearing cylinder 408, and the crushed rock and soil fall from the gap between the bottom ends of the double-cone head assembly 4011 and the bearing cylinder 408 into the soil receiving bucket 504, and the soil receiving bucket 504 guides the crushed soil to fall on the ground / bucket truck.

[0054] Repeat the above steps S2 and S3 until the geological exploration hole is expanded to a predetermined depth.

[0055] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A geotechnical engineering survey hole-reaming device, comprising a support base (1) and a main frame (2), wherein the main frame (2) is rotatably mounted on the support base (1) at one side close to the bottom end, and a hydraulic telescopic arm (6) for adjusting the angle of the main frame (2) is installed between the main frame (2) and the support base (1), characterized in that: It also includes a drill rod assembly (3) and a soil taking assembly (5), wherein the drill rod assembly (3) is slidably connected to the main frame (2), and the drill rod assembly (3) is controlled to slide on the main frame (2) by a multi-stage hydraulic telescopic member (203) on the main frame (2), and a drill bit (4) is movably mounted at the bottom end of the drill rod assembly (3); the soil taking assembly (5) is mounted near the bottom end of the main frame (2), and the soil taking assembly (5) has a telescopic soil receiving bucket (504); The drill bit (4) comprises a soil drilling assembly and a releasable soil storage assembly, wherein the soil storage assembly is located below the soil drilling assembly, and comprises a bearing cylinder (408), a suspension rod (4010) and a double cone head assembly (4011), wherein the bearing cylinder (408) is rotatably connected to the central drill rod of the soil drilling assembly, the suspension rod (4010) is connected to the central drill rod of the soil drilling assembly via an elastic connector, the double cone head assembly (4011) is rotatably connected to the suspension rod (4010), and the top end of the double cone head assembly (4011) is matched with the bottom end of the bearing cylinder (408); a matcher matched with the suspension rod (4010) is provided in the soil receiving bucket (504); The bearing cylinder (408) is used to collect crushed rock and soil during the hole expansion process. When the drill bit (4) is pulled out of the borehole, the soil receiving bucket (504) is extended to the bottom of the drill bit (4), and the upward movement of the suspension rod (4010) is limited by the adapter. The suspension rod (4010) is pulled, so that the double cone head assembly (4011) and the bearing cylinder (408) move relative to each other, and the bottom end of the bearing cylinder (408) is opened, and the crushed rock and soil in the bearing cylinder (408) falls into the soil receiving bucket (504).

2. A geotechnical engineering investigation and reaming device according to claim 1, characterized in that: The support seat (1) comprises: a fixed body / movable body (101) and a cross frame body (102); the cross frame body (102) is fixedly mounted on the top of the fixed body / movable body (101), and the first end of the cross frame body (102) extends out of the side of the fixed body / movable body (101); the first end of the cross frame body (102) is fixedly connected to a first connecting head (104), the first connecting head (104) is rotatably mounted to a second connecting seat (206) on the side of the main frame body (2), both sides of the second end of the cross frame body (102) are fixedly connected to a first connecting seat (103), an auxiliary support (105) is rotatably mounted on the first connecting seat (103), and an adjustable support leg (106) is fixedly mounted on one end of the auxiliary support (105) away from the cross frame body (102).

3. A geotechnical engineering investigation and hole enlarging device according to claim 1 or 2, characterized in that: The main frame (2) comprises a vertical frame (201), a top plate (202) is fixedly mounted on the top of the vertical frame (201), the multi-stage hydraulic telescopic component (203) is fixedly mounted on the top of the top plate (202), the left and right sides of the front side of the vertical frame (201) are fixedly connected with sliding side plates (205), the front side of the vertical frame (201) and located between the two sliding side plates (205) are fixedly connected with two parallel first sliding blocks (204), the front side of the vertical frame (201) and located between the two first sliding blocks (204) are provided with a sliding opening (207), the telescopic portion of the multi-stage hydraulic telescopic component (203) is located on the inner side of the sliding opening (207), and the back side of the vertical frame (201) and close to the bottom end of the vertical frame (201) is fixedly connected with a second connecting seat (206); The second connecting seat (206) is rotatably mounted on the support seat (1); a rectangular opening for the soil taking assembly (5) to pass through is provided on the side of the vertical frame body (201) and below the second connecting seat (206).

4. A geotechnical engineering investigation and hole enlarging device according to claim 1 or 2, characterized in that: The soil drilling assembly comprises a first rod body (401) and a disc body (402); a female connector (401a) is provided on the top of the first rod body (401); a second connector (404) is threadedly installed on the top of the first rod body (401); the second connector (404) is movably installed with a third connector seat (307) at the bottom end of the drilling rod (306) via a pin; The disk body (402) is fixedly connected to the side of the first rod body (401); a fourth connecting seat (405) is fixedly connected to the bottom of the disk body (402) and located on the outside of the first rod body (401); a reaming head (406) is rotatably mounted on the bottom of the fourth connecting seat (405); and a plurality of the fourth connecting seat (405) and the reaming head (406) are both arranged in an annular shape; and a plurality of reinforcing ribs (403) are fixedly connected between the disk body (402) and the first rod body (401).

5. The geotechnical engineering investigation and hole enlarging device according to claim 3, characterized in that: The drill rod assembly (3) comprises a hydraulic motor assembly (305) and a longitudinal plate (303); a drill rod member (306) is fixedly mounted on the bottom output end of the hydraulic motor assembly (305); and a third connecting seat (307) is fixedly mounted on the bottom end of the drill rod member (306); The first side surface of the longitudinal plate member (303) is fixedly connected to the outer shell of the hydraulic motor assembly (305) through a rib frame (304); the second side surface of the longitudinal plate member (303) is fixedly connected to a second sliding seat (302); the second sliding seat (302) is slidably installed with the first sliding block (204); the longitudinal plate member (303) is located on the inner side of the two sliding side plates (205); the second side surface of the longitudinal plate member (303) is fixedly connected to a sliding frame (301); the sliding frame (301) is located on the inner side of the sliding opening (207); the bottom telescopic end of the multi-stage hydraulic telescopic member (203) is fixedly installed with the sliding frame (301).

6. A geotechnical engineering survey hole expanding device according to claim 4, characterized in that: The top end of the bearing cylinder (408) is rotatably connected to the portion of the first rod (401) located below the disk (402) through a center frame (407), and a plurality of annularly distributed limiting ribs (4017) are fixedly connected to the outer side of the bearing cylinder (408); the top end of the suspension rod (4010) is fixedly connected to a spring (4014), and the top end of the spring (4014) is fixedly connected to a mounting head (4015); a mounting hole (401b) is provided at the bottom end of the first rod (401), and the mounting head (4015) is located on the inner side of the mounting hole (401b), and the mounting head (4015) is connected to the mounting hole (401b) through a transverse insertion rod (4016), and the transverse insertion rod (4016) is located above the disk (402).

7. A geotechnical engineering survey hole expanding device according to claim 6, characterized in that: An extended sliding member (4012) is fixedly connected to the outer side of the double cone head assembly (4011), a sliding groove (409) is provided on the inner side of the supporting cylinder (408), and the extended sliding member (4012) is slidably matched with the sliding groove (409).

8. A geotechnical engineering investigation and hole enlarging device according to claim 6, characterized in that: The soil collecting assembly (5) comprises a connecting block (501) and a horizontal hydraulic telescopic member (503); the top of the connecting block (501) is fixedly connected to the main frame (2); the bottom of the connecting block (501) is fixedly mounted with a vertical plate (502); the horizontal hydraulic telescopic member (503) is fixedly connected to the vertical plate (502); and the bottom of the soil receiving bucket (504) is fixedly connected to the telescopic end of the horizontal hydraulic telescopic member (503).

9. A geotechnical engineering survey hole expanding device according to claim 8, characterized in that: The matcher is a U-shaped bracket (505), and the U-shaped bracket (505) is fixedly connected to the inner bottom of the soil receiving bucket (504). A guiding oblique opening (505a) is provided on the inner side of the front end of the U-shaped bracket (505). An annular opening (4013) for matching with the U-shaped bracket (505) is provided on the side of the suspension rod (4010) and below the double cone head assembly (4011); a reinforcing plate (506) is fixedly connected between the U-shaped bracket (505) and the soil receiving bucket (504).

10. A method for expanding a hole in geotechnical engineering survey, characterized in that: Using the geotechnical engineering investigation and reaming device according to any one of claims 1 to 9 to reaming a hole specifically comprises the following steps: S1, control the drill rod assembly to be in the drilling state, at this time the hydraulic telescopic arm adjusts the main frame to be in a vertical state, and the soil receiving bucket of the soil taking assembly is in a retracted state; S2. After preparation, the hole is expanded. The multi-stage hydraulic telescopic member pushes the drill rod assembly downward, and the drill bit is driven to rotate synchronously by the drill rod assembly. The releasable soil storage assembly of the drill bit guides the drill bit to the original hole position. The rotating drill soil assembly expands the hole. The crushed soil generated during the expansion process falls into the bearing cylinder of the releasable soil storage assembly. When the crushed soil in the bearing cylinder is full, the drill rod assembly stops working, and the multi-stage hydraulic telescopic member pushes the drill rod assembly upward; S3. When the drill bit is pulled out of the hole, the soil taking assembly controls the soil receiving bucket to extend, and the soil receiving bucket blocks the new hole below. The adapter cooperates with the suspension rod to limit the upward movement of the suspension rod. The suspension rod is pulled, so that the double cone head assembly and the bearing cylinder move relative to each other. The bottom end of the bearing cylinder opens, and the crushed rock and soil in the bearing cylinder is released into the soil receiving bucket, and the soil receiving bucket guides the crushed soil to fall on the ground / bucket truck.

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