CN214460702U

CN214460702U - Pile foundation quality detection device

Info

Publication number: CN214460702U
Application number: CN202023204720.XU
Authority: CN
Inventors: 刘自船; 陈跃飞; 李锦智
Original assignee: Guangdong Baida Testing Technology Service Co ltd
Current assignee: Guangdong Baida Testing Technology Service Co ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-10-22
Anticipated expiration: 2030-12-26

Abstract

The utility model relates to a pile foundation quality detection device, it includes gravity plate, a support section of thick bamboo and jack, the jack sets up in the foundation pile top surface, the gravity plate set up in on the jack, the jack support in the middle part of gravity plate bottom surface, a support section of thick bamboo is provided with a plurality of, and is a plurality of a support section of thick bamboo encircles the foundation pile setting, it inserts subaerially to support a section of thick bamboo, support a section of thick bamboo top is fixed in the gravity plate, the side opening has been seted up to the section of thick bamboo wall of a support section of thick bamboo, it is provided with the inserted block to slide in the side opening, be provided with in the support section of thick bamboo be used for with the post that pushes away that the inserted block was released. This application has the stable effect of the detection effect who improves pile foundation quality testing.

Description

Pile foundation quality detection device

Technical Field

The application relates to a building foundation pile detects technical field, concretely relates to pile foundation quality detection device.

Background

Pile foundation detection is quality detection work carried out in building engineering, and the main methods for pile foundation detection comprise a static load test, a core drilling method, a low strain method, a high strain method, a sound wave transmission method and the like. The static load test is the most direct and reliable test method for detecting the vertical compression bearing capacity of the foundation pile. The static load test is generally performed by arranging a jack on the top of a foundation pile, arranging a gravity plate on the jack, fixing the gravity plate through a reference pile, and driving the reference pile into the ground to fix the reference pile. However, in engineering practice, the problem that the driving depth of the reference pile is insufficient and displacement is generated in the test process is easily caused in the reference pile, so that the detection effect is unstable.

In view of the above-mentioned related technologies, the inventor believes that there is a defect in pile foundation quality detection that the detection effect is easily unstable due to the displacement of the reference pile.

SUMMERY OF THE UTILITY MODEL

In order to improve pile foundation quality testing's detection effect stability, this application provides a pile foundation quality testing device.

The application provides a pile foundation quality detection device adopts following technical scheme:

the utility model provides a pile foundation quality detection device, includes gravity plate, a support section of thick bamboo and jack, the jack sets up in the foundation pile top surface, the gravity plate set up in on the jack, the jack support in the middle part of gravity plate bottom surface, a support section of thick bamboo is provided with a plurality of, and is a plurality of a support section of thick bamboo encircles the foundation pile setting, it inserts subaerially to support a section of thick bamboo, it is fixed in to support a section of thick bamboo top the gravity plate, the side opening has been seted up to the section of thick bamboo wall of a support section of thick bamboo, it is provided with the inserted block to slide in the side opening, be provided with in the support section of thick bamboo be used for with the support post that the inserted block was released.

Through adopting the above-mentioned technical scheme, when carrying out pile foundation quality testing, the ejector pin is released the inserted block in the side opening, make the inserted block part insert in the soil around, make the supporting cylinder receive more stable fixed action from this, in the testing process, the jack upwards jacks up the gravity plate, supporting cylinder and gravity plate fixed connection, jack conducts to the thrust of gravity plate to the supporting cylinder, the supporting cylinder is more stable because the fixed action of inserted block, and then make the fixed effect of supporting cylinder to the gravity plate stable, the application of force effect of jack is stable, the supporting cylinder is difficult to be extracted from ground, the gravity plate is more stable, the effect of exerting pressure to the foundation pile is more stable, and then make the detection effect to the foundation pile more stable.

Optionally, the push column side wall corresponds the position of side opening has seted up the storage tank, inserted block one end is located in the side opening and the other end is located in the storage tank, the inserted block is located one end in the storage tank is the tank bottom that the type of circular cone form and conical surface faced the storage tank.

Through adopting above-mentioned technical scheme, inserted block one end is arranged in the storage tank to the one end that the inserted block is arranged in the storage tank is type circular cone, and when the pushing ram removed, the cell wall of storage tank was more stable to the application of force effect of inserted block, and is stable to the promotion effect of inserted block promptly.

Optionally, a limiting groove is further formed in the hole wall of the side hole, a limiting block is arranged on the side wall of the insertion block, and the limiting block is in sliding fit with the limiting groove.

Through adopting above-mentioned technical scheme, spacing groove and stopper sliding fit, the spacing groove has the limiting displacement to the stopper, and then produces spacingly to the displacement of inserted block, reduces the inserted block and falls out the possibility outside supporting a section of thick bamboo from the side piece for the inserted block is more stable to the fixed effect of supporting a section of thick bamboo, further ensures that supporting a section of thick bamboo has better position state stability.

Optionally, a sliding groove is further formed in the groove bottom of the accommodating groove, a sliding block is arranged in the sliding groove, an elastic piece is arranged between the sliding block and the inserting block, one end of the elastic piece is fixed to the inserting block, and the other end of the elastic piece is fixed to the sliding block.

Through adopting above-mentioned technical scheme, spout and slider sliding fit to slider and inserted block pass through elastic component interconnect, and when the pushing ram removed and promoted the inserted block, the elastic component was in tensile state, when the pushing ram removed in order to relieve the thrust to the inserted block, the inserted block can be at the elastic tension of elastic component and resume the normal position, after the detection achievement, was convenient for extract a supporting cylinder from ground.

Optionally, a top plate is arranged at the top of the supporting cylinder, the top plate is connected with a pushing piece, the pushing piece comprises a screw rod and a hand wheel, the screw rod is in threaded connection with the top plate, the bottom end of the screw rod is rotatably connected with the push column, and the hand wheel is fixed at the top end of the screw rod.

Through adopting above-mentioned technical scheme, rotate the hand wheel in order to rotate the screw rod, the screw rod produces under the threaded connection effect of self and roof and removes, and the one end of screw rod is rotated and is connected in the post that pushes away, carries out the push-and-pull removal to the post that pushes away from this, and is easy and simple to handle to position control effect to the post that pushes away is better.

Optionally, a connecting ring is fixedly arranged at the top of the outer wall of the supporting cylinder, and the connecting ring is fixed to the gravity plate through a screw.

Through adopting above-mentioned technical scheme, the go-between passes through the fix with screw in the gravity plate, from this will support a section of thick bamboo and gravity plate fixed connection for support and the fixed effect of a section of thick bamboo to the gravity plate are more stable.

Optionally, a sleeve is arranged at the top of the foundation pile, a horizontal partition plate is arranged in the sleeve, the partition plate divides an inner cavity of the sleeve into an upper groove and a lower groove, the top of the foundation pile is inserted into the lower groove, and the jack is placed in the upper groove.

Through adopting above-mentioned technical scheme, during the telescopic lower groove is inserted at the foundation pile top, the jack was placed in telescopic upper groove for the position of jack relative foundation pile is more stable, and the jack is also more stable to the support effect of gravity plate, and then makes whole testing process more stable.

Optionally, a lower protruding block is fixedly arranged in the middle of the bottom surface of the gravity plate, and the lower protruding block is inserted into the upper groove.

Through adopting above-mentioned technical scheme, the lower protruding piece of gravity plate bottom surface inserts in the groove for the sleeve has certain firm effect to the gravity plate, and the position state that the gravity plate is located on the jack is more stable, further improves whole testing process's stability.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when pile foundation quality detection is carried out, the push columns push out the insertion blocks in the side holes, so that the insertion blocks are partially inserted into the surrounding soil, the supporting cylinder is enabled to be more stably fixed, the fixing effect of the supporting cylinder on a gravity plate is further enabled to be stable, the force application effect of the jack is stable, the supporting cylinder is not easy to pull out from the ground, and the detection effect on the foundation pile is further enabled to be more stable;

2. the limiting groove is in sliding fit with the limiting block, the limiting groove has a limiting effect on the moving distance of the limiting block, so that the displacement of the inserting block is limited, the possibility that the inserting block falls out of the supporting cylinder from the side block is reduced, and the supporting cylinder is further ensured to have better stability;

3. the sliding groove is in sliding fit with the sliding block, the sliding block is connected with the inserting block through the elastic piece, the pushing column moves and pushes the inserting block, the elastic piece is in a stretching state, when the pushing column moves to remove pushing force on the inserting block, the inserting block can recover to the original position through elastic pulling force of the elastic piece, and after detection work is finished, the supporting cylinder is convenient to pull out from the ground.

Drawings

FIG. 1 is a side view of an embodiment of the present application.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 2.

Description of reference numerals: 1. a gravity plate; 11. a bump; 2. a support cylinder; 21. a side hole; 211. a limiting groove; 22. a top plate; 23. a connecting ring; 3. pushing the column; 31. a containing groove; 311. a chute; 4. a pusher member; 41. a screw; 42. a hand wheel; 5. inserting a block; 51. a limiting block; 6. a slider; 61. an elastic member; 7. a sleeve; 71. a partition plate; 72. an upper groove; 73. a lower groove; 8. a jack.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses pile foundation quality testing device, refers to fig. 1 and 2, including sleeve 7, jack 8, gravity plate 1 and a support section of thick bamboo 2. The sleeve 7 is cylindrical, and the inner diameter of the sleeve 7 is consistent with the diameter of the detected foundation pile. A partition plate 71 is arranged in the sleeve 7, the partition plate 71 is horizontally arranged, the partition plate 71 divides an inner cavity of the sleeve 7 into an upper groove 72 and a lower groove 73, the lower groove 73 is in insertion fit with the foundation pile, and the upper groove 72 is used for placing the jack 8. In order to make the gravity plate 1 more stable, in this embodiment, a circular protrusion 11 is disposed at the middle of the bottom surface of the gravity plate 1, and after the jack 8 is placed in the upper groove 72, the protrusion 11 is partially inserted into the upper groove 72. It should be noted that the depth of the upper groove 72 needs to be less than the sum of the minimum height of the jack 8 and the thickness of the protrusion 11, so as to ensure the supporting effect of the jack 8 on the gravity plate 1.

Referring to fig. 2 and 3, the supporting cylinder 2 is cylindrical, the connecting ring 23 is fixedly arranged at the top of the outer wall of the supporting cylinder 2, the gravity plate 1 is provided with a connecting hole, the aperture of the connecting hole is consistent with the outer diameter of the supporting cylinder 2, the top of the supporting cylinder 2 is inserted into the connecting hole, the bottom surface of the gravity plate 1 is tightly attached to the top surface of the connecting ring 23, the connecting ring 23 is provided with a threaded hole, the gravity plate 1 is provided with a through hole, and the gravity plate 1 and the connecting ring 23 are fixedly connected through screws at the corresponding threaded hole and the through hole. A push column 3 is inserted in the support cylinder 2, the length of the push column 3 is smaller than that of the support cylinder 2, and the push column 3 is connected with the support cylinder 2 in a sliding mode. A side hole 21 is formed in the side wall of the supporting cylinder 2, the side hole 21 is a through hole, an insertion block 5 is inserted into the side hole 21, the insertion block 5 is in sliding fit with the side hole 21, and the length of the insertion block 5 is larger than that of the side hole 21. The circumference of the push post 3 is provided with receiving grooves 31, and the number of the receiving grooves 31 is equal to that of the side holes 21, and the positions of the receiving grooves 31 correspond to those of the side holes one by one. One end of the insertion block 5 is flush with the outer cylinder wall of the support cylinder 2 and the other end is located in the accommodation groove 31. When the push column 3 slides relative to the support cylinder 2, the end of the insert block 5 located in the accommodating groove 31 is partially extruded out of the accommodating groove 31, so that the insert block 5 is partially pushed out of the side hole 21. In this embodiment, preferably, the end of the insertion block 5 located in the accommodating groove 31 is shaped like a cone, and in other embodiments, the end of the insertion block 5 located in the accommodating groove 31 may also be shaped like a hemisphere, so that the insertion block 5 is easily pushed by the wall of the accommodating groove 31 to move. The bottom end of the supporting cylinder 2 is fixedly provided with a conical block, the conical surface of the conical block faces downwards, and the conical block enables the supporting cylinder 2 to be inserted into the ground more easily. The fixed roof 22 that is provided with of top surface of a supporting cylinder 2, roof 22 middle part offered threaded hole, be provided with impeller 4 in the screw hole of roof 22, impeller 4 includes screw rod 41 and hand wheel 42, screw rod 41 insert in the screw hole of roof 22 and with the screw hole screw-thread fit of roof 22, the axis of screw rod 41 and the axis coincidence setting of post pusher 3, the bottom of screw rod 41 is rotated and is connected in the top of post pusher 3, the top and the hand wheel 42 fixed connection of screw rod 41, hand wheel 42 and the coaxial setting of screw rod 41, promote in order to the post pusher 3 through rotating hand wheel 42.

Referring to fig. 3, in order to avoid the insertion block 5 from separating from the side hole 21 and falling out of the support cylinder 2, in this embodiment, a limit groove 211 is formed on the hole wall of the side hole 21, a limit block 51 is fixedly disposed on the side wall of the insertion block 5, and the limit block 51 is inserted into the limit groove 211 and is in sliding fit with the limit groove 211. The stopper groove 211 restricts the moving distance of the stopper 51, thereby restricting the displacement of the insert 5. The sliding groove 311 is formed at the bottom of the accommodating groove 31, the length direction of the sliding groove 311 is consistent with the axial direction of the push column 3, in this embodiment, the sliding groove 311 is preferably a T-shaped groove, the sliding groove 311 is provided with a sliding block 6, the sliding block 6 is preferably a T-shaped block having a profile consistent with that of the sliding groove 311, and the sliding block 6 is in sliding fit with the sliding groove 311. The slider 6 is provided with an elastic member 61, and one end of the elastic member 61 is fixed to the slider 6 and the other end is fixed to the insert 5. The elastic member 61 may be a spring or a string having a good elasticity, etc. When the plunger 3 pushes the plunger 5 out of the side hole 21, the elastic member 61 is in a stretched state, and when the plunger 3 moves to release the pushing force on the plunger 5, the plunger 5 can return to its original position by the elastic pulling force of the elastic member 61.

The implementation principle of the pile foundation quality detection device in the embodiment of the application is as follows: when pile foundation quality detection is carried out, a hand wheel 42 is rotated, a pushing column 3 is pushed through a pushing piece 4, the pushing column 3 pushes out an insertion block 5 in a side hole 21, part of the insertion block 5 is inserted into the ground around, therefore, a supporting cylinder 2 is enabled to be more stably fixed, in the detection process, a jack 8 jacks up a gravity plate 1, the supporting cylinder 2 is fixedly connected with the gravity plate 1 through a connecting ring 23, the pushing force of the jack 8 on the gravity plate 1 is transmitted to the supporting cylinder 2, the supporting cylinder 2 is more stable due to the fixing effect of the insertion block 5, further, the fixing effect of the supporting cylinder 2 on the gravity plate 1 is enabled to be stable, the force application effect of the jack 8 is stable, the supporting cylinder 2 is not easy to be pulled out of the ground, the gravity plate 1 is more stable, the pressure application effect on a foundation pile is more stable, and further, the detection effect on the foundation pile is more stable.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a pile foundation quality testing device which characterized in that: including gravity plate (1), a supporting cylinder (2) and jack (8), jack (8) set up in the foundation pile top surface, gravity plate (1) set up in on jack (8), jack (8) support in the middle part of gravity plate (1) bottom surface, supporting cylinder (2) are provided with a plurality of, and are a plurality of supporting cylinder (2) encircle the foundation pile setting, supporting cylinder (2) insert subaerially, supporting cylinder (2) top is fixed in gravity plate (1), side opening (21) have been seted up to the section of thick bamboo wall of supporting cylinder (2), it is provided with in side opening (21) that the slip is provided with insert (5), be provided with in supporting cylinder (2) and be used for with push pillar (3) that insert (5) were released.

2. The pile foundation quality detection device of claim 1, wherein: the push column (3) side wall corresponds storage tank (31) has been seted up to the position of side opening (21), insert piece (5) one end is located in side opening (21) and the other end is located in storage tank (31), insert piece (5) are located one end in storage tank (31) is the tank bottom of class coniform and conical surface orientation storage tank (31).

3. The pile foundation quality detection device of claim 2, wherein: spacing groove (211) have still been seted up to the pore wall of side opening (21), the lateral wall of inserted block (5) is provided with stopper (51), stopper (51) with spacing groove (211) sliding fit.

4. The pile foundation quality detection device of claim 2, wherein: the groove bottom of the accommodating groove (31) is further provided with a sliding groove (311), a sliding block (6) is arranged in the sliding groove (311), an elastic piece (61) is arranged between the sliding block (6) and the inserting block (5), one end of the elastic piece (61) is fixed on the inserting block (5) and the other end of the elastic piece is fixed on the sliding block (6).

5. The pile foundation quality detection device of claim 1, wherein: the top of the supporting cylinder (2) is provided with a top plate (22), the top plate (22) is connected with a pushing piece (4), the pushing piece (4) comprises a screw rod (41) and a hand wheel (42), the screw rod (41) is in threaded connection with the top plate (22), the bottom end of the screw rod (41) is rotatably connected with the pushing column (3), and the hand wheel (42) is fixed at the top end of the screw rod (41).

6. The pile foundation quality detection device of claim 1, wherein: the top of the outer wall of the supporting cylinder (2) is fixedly provided with a connecting ring (23), and the connecting ring (23) is fixed on the gravity plate (1) through a screw.

7. The pile foundation quality detection device of claim 1, wherein: the foundation pile is characterized in that a sleeve (7) is arranged at the top of the foundation pile, a horizontal partition plate (71) is arranged in the sleeve (7), the inner cavity of the sleeve (7) is divided into an upper groove (72) and a lower groove (73) by the partition plate (71), the top of the foundation pile is inserted into the lower groove (73), and the jack (8) is placed in the upper groove (72).

8. The pile foundation quality detection device of claim 7, wherein: the middle part of the bottom surface of the gravity plate (1) is fixedly provided with a lower convex block (11), and the lower convex block (11) is inserted into the upper groove (72).