CN212539725U - Geotechnical engineering reconnaissance broken rock coring device - Google Patents

Abstract

The utility model discloses a broken rock coring device of geotechnical engineering reconnaissance, arrange disc roof, cavity disc bottom plate and ring clamp plate on same normal from top to bottom in proper order, roof and bottom plate between correspond three spliced poles that position department is regular triangle distribution through all around edge and connect fixedly, bottom plate and clamp plate between correspond three hydraulic piston cylinder that position department is regular triangle distribution through all around edge and connect, roof upper surface central point department of putting be equipped with the external infusion pipeline in mucilage glue case and mucilage glue case exit, the infusion pipeline pass through the through-hole on roof and the bottom plate and extend to the supporting component support of single-action double-barrelled drilling tool one side and lower extreme through the bottom plate lower surface. The device can reduce the high stress that stereoplasm soil layer produced at coring in-process, guarantees to get the stability of core structure, can improve simultaneously and get core efficiency and quality, provides high-quality rock core for subsequent detection.

Description

Geotechnical engineering reconnaissance broken rock coring device

Technical Field

The utility model relates to a civil engineering sampling equipment technical field, more specifically the theory that says so relates to a geotechnical engineering reconnaissance broken rock coring device.

Background

The coring is to use a special coring tool to drill underground rocks to the ground in blocks during the drilling process, the blocks of rocks are called as cores, various properties of the rocks can be measured through the coring tool, the underground structure and the rock deposition environment can be studied visually, the fluid properties and the like in the blocks of rocks are known, in the mineral exploration and development process, drilling work needs to be carried out according to the stratum level and the depth of geological design, the coring tool is put into a well, the rock sample is drilled, the core is the most visual and practical information for knowing the underground stratum and the mineral-containing characteristics, the geotechnical engineering investigation refers to finding, analyzing and evaluating the geology and environmental characteristics of a construction site and the geotechnical engineering conditions according to the requirements of the construction engineering, the activity of investigation files is worked out, and the coring is needed during the geotechnical engineering investigation so as to be convenient for later detection.

The prior art has the following problems: present geotechnical engineering reconnaissance broken rock coring device is taking the in-process of core, often because of the difference of land fixing geology, fixed coring device that can not be fine has reduced work efficiency, can produce higher stress and then cause the failure of getting the core in the face of the stereoplasm soil layer simultaneously, to the coring work of complicated stratum, often can not reach better coring effect in addition, therefore holistically get core efficiency and quality lower, influence subsequent detection effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a geotechnical engineering reconnaissance broken rock coring device, the device can reduce the high stress that stereoplasm soil layer produced at the coring in-process, guarantees to get the stability of core structure, can improve simultaneously and get core efficiency and quality, provides high-quality rock core for subsequent detection.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a core-picking device for investigation of broken rocks in geotechnical engineering comprises a disc-shaped top plate, a hollow disc-shaped bottom plate and a circular ring pressing plate which are sequentially arranged on the same normal line from top to bottom, wherein the top plate and the bottom plate are connected and fixed through three connecting columns which are distributed in a regular triangle shape and correspond to positions at the edges of the periphery, the bottom plate and the pressing plate are connected through three hydraulic piston cylinders which are distributed in a regular triangle shape and correspond to the positions at the edges of the periphery, a cement paste tank and an external infusion pipeline are arranged at the position of the center of the upper surface of the top plate, the infusion pipeline penetrates through holes in the top plate and the bottom plate and extends to one side of a single-action double-pipe drilling tool, the lower end of the infusion pipeline is supported by a supporting component on the lower surface of the bottom plate, a center positioning rod is arranged at the position of the center, the top plate lower surface and bottom plate upper surface all be equipped with embedding slide bar between the arc recess and the arc recess of mutual correspondence, the slide bar on the cover be equipped with and rotate the cover, the rotation cover inboard suit on central locating lever shaft body and rotate the cover internal fixation and have the drive rig, drive rig below output connect the double-barrelled drilling tool of single action, the clamp plate lower surface use the ring clamp plate centre of a circle to distribute ten inserted bars as central equidistance, wherein every inserted bar and clamp plate hookup location department both sides all are equipped with the strengthening rib strip, strengthening rib strip upper end and clamp plate lower surface fixed and the lower extreme pass through the welding ring and insert the pole body is fixed.

Furthermore, spring shock-absorbing rods are arranged between the three connecting columns.

Further, the supporting component include with bottom plate lower surface lug connection's rotation seat, rotation seat below rotate the part and pass splint through the bolt and rotate and be connected with telescopic link, telescopic link below be connected with the lantern ring through the pivot, lantern ring suit infusion pipeline.

Further, the central angle of the arc-shaped groove is larger than 160 degrees.

Furthermore, a control cabinet is arranged above the bottom plate, a winding rod is arranged above the control cabinet, a control circuit of the control cabinet is connected to the drive drilling machine through the winding rod, and the control cabinet is externally connected with a power supply.

Compared with the prior art, the utility model has the advantages that:

the utility model can reduce the high stress generated by the hard soil layer in the coring process to the maximum extent by matching ten inserted rods and a single-action double-pipe drilling tool which can move circumferentially with a sampling scheme, has better stability of the whole structure, can improve the coring efficiency and quality, and provides a high-quality core for the subsequent detection; the single-action double-pipe drilling tool is adopted for drilling, so that disturbance and damage of the rock core after entering the inner pipe can be reduced, the integrity of the rock core is improved, and the mucilage is used for replacing clear water as circulating liquid, so that the rock washing of the clear water is effectively reduced. The mucilage can form a tough glue film on the surface of the rock sample, can glue and wrap the soft rock core, enables the broken and soft rock core to keep an original structure, and simultaneously utilizes the lubricating effect of the mucilage to reduce the vibration of a drilling tool, thereby being beneficial to improving the rock core sampling rate.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the lower portion of the rotating sleeve connecting structure of the present invention;

FIG. 3 is a schematic view of the upper portion of the rotating sleeve connecting structure of the present invention;

FIG. 4 is a schematic view of the installation structure of the insert rod of the present invention;

FIG. 5 is a schematic view of the sampling scheme of the present invention;

in the figure: 1. connecting columns; 2. a top plate; 3. a spring shock-absorbing lever; 4. a cement tank; 5. a control cabinet; 6. a base plate; 7. pressing a plate; 8. single-acting double-pipe drilling tools; 9. an elastic shaft body; 10. a slide bar; 11. rotating the sleeve; 12. driving the drilling machine; 13. a central positioning rod; 14. a transfusion pipeline; 15. an arc-shaped groove; 16. a wire winding rod; 17. a hydraulic piston cylinder; 18. a support assembly; 19. a collar; 20. a circulating liquid spray head; 21. inserting a rod; 22. and reinforcing ribs.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the utility model easy to understand and understand, the utility model is further explained by combining with the specific figures.

As shown in figures 1 to 4, a coring device for investigation broken rocks in geotechnical engineering comprises a disc-shaped top plate 2, a hollow disc-shaped bottom plate 6 and a circular ring pressing plate 7 which are sequentially arranged on the same normal line from top to bottom, wherein the top plate 2 and the bottom plate 6 are connected and fixed through three connecting columns 1 which are distributed in a regular triangle at corresponding positions of the peripheral edges, the bottom plate 6 and the pressing plate 7 are connected through three hydraulic piston cylinders 17 which are distributed in a regular triangle at corresponding positions of the peripheral edges, a cement liquid tank 4 is arranged at the central position of the upper surface of the top plate 2, an external infusion pipeline 14 is connected at the outlet of the cement liquid tank 4, the infusion pipeline 14 passes through holes in the top plate 2 and the bottom plate 6 and extends to one side of a single-action double-pipe drilling tool 8, the lower end of the infusion pipeline is supported by a supporting component 18 at the lower surface of the bottom plate 6, a central positioning rod 13 is arranged at, the lower surface of the top plate 2 and the upper surface of the bottom plate 6 are respectively provided with arc-shaped grooves 15 which correspond to each other, a sliding rod 10 is embedded between the arc-shaped grooves 15, a rotating sleeve 11 is sleeved on the sliding rod 10, the inner side of the rotating sleeve 11 is sleeved on the rod body of a central positioning rod 13, a driving drilling machine 12 is fixed in the rotating sleeve 11, the output end below the driving drilling machine 12 is connected with a single-action double-tube drilling tool 8, ten inserting rods 21 are equidistantly distributed on the lower surface of a pressing plate 7 by taking the circle center of the circular pressing plate 7 as the center, wherein, two sides of the connecting position of each inserting rod 21 and the pressing plate 7 are respectively provided with a reinforcing rib 22, the upper end of each reinforcing rib 22 is fixed with the lower surface of the pressing plate 7, the lower end of each inserting rod 21 is fixed through a welding ring, spring shock absorption rods 3 are respectively arranged among the three connecting, the telescopic connection below is connected with lantern ring 19 through the pivot, and lantern ring 19 suit infusion pipeline 14, and arc recess 15 central angle is greater than 160 degrees, and bottom plate 6 top is equipped with control box 5 and control box 5 top is equipped with wire winding rod 16, and wherein control box 5's control scheme is connected to the rig 12 of driving through wire winding rod 16, and control box 5 external power supply.

During actual coring, according to the design of the sampling scheme shown in fig. 5, the central positioning hole is positioned by the central positioning rod 13, the stress relief hole is positioned by the inserted rod 21, and the single-action double-pipe drilling tool 8 and the driving drilling tool 12 are moved to the position of the coring hole by the rotating sleeve 11 in cooperation with the sliding rod 10, so as to respectively perform coring operation, wherein the diameters of two dotted lines in fig. 5 are 400 mm and 1000 mm respectively.

In-process, make central positioning pole 13 below push down to broken rock face through counter weight machinery push down spliced pole 1, switch on after that, start all hydraulic piston cylinder 17 piston rods through control box 5 and descend, push down clamp plate 7 lets all inserted bars 21 insert the stress relief hole position department in the design drawing, start drive rig 12 through control box 5 and drive single-action double-barrelled drilling tool 8 and take core operation, simultaneously, circulation liquid shower nozzle 20 of infusion pipeline 14 lower extreme sprays the thick liquid of glue to single-action double-barrelled drilling tool 8 operating position department, take a sample to three coring hole position department in the design drawing in proper order.

The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a broken rock coring device of geotechnical engineering reconnaissance which characterized in that: the device comprises a disc-shaped top plate, a hollow disc-shaped bottom plate and a circular ring pressing plate which are sequentially arranged on the same normal line from top to bottom, wherein the top plate and the bottom plate are fixedly connected through three connecting columns which are distributed in a regular triangle shape at the corresponding positions at the edges of the periphery, the bottom plate and the pressing plate are connected through three hydraulic piston cylinders which are distributed in a regular triangle shape at the corresponding positions at the edges of the periphery, a cement box is arranged at the central position of the upper surface of the top plate, an external infusion pipeline is arranged at the outlet of the cement box, the infusion pipeline penetrates through holes in the top plate and the bottom plate and extends to one side of a single-action double-pipe drilling tool, the lower end of the infusion pipeline is supported by a supporting component at the lower surface of the bottom plate, a central positioning rod is arranged at the central position of the lower surface of the top plate, the central positioning rod penetrates through the hollow part of the bottom plate, the slide bar on the cover be equipped with and rotate the cover, the rotation cover inboard suit on central locating lever shaft body and rotate the cover internal fixation and have a drive rig, drive rig below output connect the double-barrelled drilling tool of single action, the clamp plate lower surface use the ring clamp plate centre of a circle as central equidistance and distribute ten inserted bars, wherein every inserted bar and clamp plate hookup location department both sides all are equipped with the strengthening rib strip, strengthening rib strip upper end and clamp plate lower surface fixed and the lower extreme pass through the welding ring and insert the pole body is fixed.

2. The apparatus of claim 1, wherein the coring device is adapted to perform a geotechnical investigation on crushed rock: spring shock-absorbing rods are arranged between the three connecting columns.

3. The apparatus of claim 1, wherein the coring device is adapted to perform a geotechnical investigation on crushed rock: the supporting component comprises a rotating seat directly connected with the lower surface of the bottom plate, a rotating part below the rotating seat penetrates through the clamping plate through a bolt to be connected with a telescopic connecting rod in a rotating mode, a lantern ring is connected to the lower side of the telescopic connecting rod through a rotating shaft, and the lantern ring is sleeved with the infusion pipeline.

4. The apparatus of claim 1, wherein the coring device is adapted to perform a geotechnical investigation on crushed rock: the central angle of the arc-shaped groove is larger than 160 degrees.

5. The apparatus of claim 1, wherein the coring device is adapted to perform a geotechnical investigation on crushed rock: the control cabinet is arranged above the bottom plate, a winding rod is arranged above the control cabinet, a control circuit of the control cabinet is connected to the drive drilling machine through the winding rod, and the control cabinet is externally connected with a power supply.

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