Device for vertical compression resistance static load test of overwater foundation pile

Abstract

The invention discloses a device for a vertical compression resistance static load test of an overwater foundation pile, and relates to the technical field of overwater foundation pile detection. A fixing assembly; a liquid inlet assembly; and a liquid discharge assembly. The first arc-shaped piece and the second arc-shaped piece are arranged on the outer surface of the proper position of the overwater foundation pile in a sleeving mode, and the first arc-shaped piece and the second arc-shaped piece are fixed by passing through the interiors of the second penetrating groove and the first penetrating groove through an external bolt; then, the lower end of a second pipeline extends into water, a water pump is started, water liquid is transferred into the containing ring piece through the second pipeline, the water pump and the first pipeline in sequence under the action of the water pump, and therefore the weight of the containing ring piece is increased, namely, the pressure borne by the overwater foundation pile is increased, and the content of the water liquid in the containing ring piece is observed through scale marks; therefore, the increased weight of the placed ring piece is judged, and the vertical compressive static load resistance of the overwater foundation pile is judged.

Description

Technical Field

[0001] This invention relates to the field of underwater pile testing technology, specifically to a device for conducting a static load test on the vertical compressive strength of underwater piles. Background Technology

[0002] Piling inspection is a crucial step in ensuring the structural safety of underwater structures such as bridges and docks. Due to the unique characteristics of the aquatic environment, piles must not only bear the weight of the structure itself but also resist the effects of natural factors such as water flow and waves. Therefore, regular pile inspection is essential for preventing potential safety hazards.

[0003] Traditional surcharge and anchor pile methods are both time-consuming and labor-intensive, affecting the testing progress and increasing testing costs. During the acceptance stage of engineering piles, the pile foundations are generally exposed above the water surface. If the load is applied to the top of the piles, the traditional surcharge method not only makes it difficult to build a platform, but also makes it difficult to solve the problem of graded and gradual loading required by the specifications. Summary of the Invention

[0004] The purpose of this invention is to provide a device for static load testing of vertical compressive strength of underwater foundation piles, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: An apparatus for static load testing of vertical compressive strength of underwater foundation piles, comprising: A placement component includes a placement ring, a first arc-shaped component fixedly connected to the center of the placement ring, first auxiliary rings fixedly connected to both ends of the first arc-shaped component, a first auxiliary block fixedly connected to the outer side of the first auxiliary ring, a first through groove through one side of the first auxiliary block, a first friction pad fixedly connected to the inner wall of the first auxiliary ring, a base plate fixedly connected to the bottom inner side of the placement ring, graduation lines evenly arranged on the outer side of the placement ring, a first circular groove opened at the upper end of the base plate, a second circular groove through the bottom wall of the first circular groove, and a third circular groove through the upper end of the base plate. The fixing component includes a second arc-shaped component disposed on the side of the first arc-shaped component, with a second auxiliary ring fixedly connected to both ends of the second arc-shaped component, a second friction pad fixedly connected to the inner side of the second auxiliary ring, a second auxiliary block fixedly connected to the outer side of the second auxiliary ring, and a second through groove through one side of the second auxiliary block. The liquid inlet assembly includes a first pipe fixedly connected to the inner wall of the third circular groove, the lower end of the first pipe being fixedly connected to a water pump, and the lower end of the water pump being fixedly connected to a second pipe. The drainage assembly includes a first vertical rod fixedly connected to the top wall of a second circular groove, a stop block fixedly connected to the lower end of the first vertical rod, a circular block slidably connected inside the second circular groove, a through groove extending through the outer side of the upper end of the circular block, a spring fixedly connected to the outer side of the upper end of the circular block, a second vertical rod fixedly connected to the center of the circular block, a baffle plate fixedly connected to the upper end of the second vertical rod, and a pull rod fixedly connected to the lower end of the circular block.

[0006] A further improvement of the technical solution of the present invention is that: the first arc-shaped component is sleeved on the outer surface of the underwater foundation pile, and the first friction pad is attached to the outer wall of the underwater foundation pile.

[0007] Using the above technical solution, the device is attached to the outer surface of the water-based foundation pile by the first arc-shaped component, and the friction between the first friction pad and the water-based foundation pile is increased by the first friction pad to prevent the first arc-shaped component from sliding freely up and down with the water-based foundation pile.

[0008] A further improvement of the technical solution of the present invention is that: the second arc-shaped component is sleeved on the outer surface of the underwater foundation pile, the second auxiliary ring and the first auxiliary ring are on the same horizontal plane, the second friction pad is attached to the outer wall of the underwater foundation pile, and the second through groove is connected to the first through groove.

[0009] By adopting the above technical solution, the friction between the second friction pad and the underwater foundation pile is increased to prevent the second arc-shaped part from sliding freely up and down with the underwater foundation pile. The second auxiliary block and the first auxiliary block are fixedly connected by bolts placed in the second through groove and the first through groove. Under the combined action of the second friction pad and the first friction pad, the first arc-shaped part and the second arc-shaped part are fixed to prevent them from sliding up and down along the outer surface of the underwater foundation pile.

[0010] A further improvement of the technical solution of the present invention is that: the upper end of the first pipe is placed inside the placement ring, the lower end of the first pipe is placed below the bottom plate, the second pipe is an inlet pipe, and the first pipe is a drain pipe.

[0011] Using the above technical solution, the second pipe of the water pump can act on the water, so that the water can enter the water pump through the second pipe. Then the water inside the water pump is transferred to the first pipe, and then injected into the placement ring through the first pipe, thereby transferring the water outside the water pile to the placement ring.

[0012] A further improvement of the technical solution of the present invention is that: the baffle is slidably connected to the first circular groove, the outer wall of the baffle is attached to the inner wall of the first circular groove, and the circular block is located in the second circular groove (107b).

[0013] By adopting the above technical solution, the baffle moves upward, causing it to disengage from the first circular groove, thereby opening the first circular groove. This allows the water inside the ring to be discharged to the outside through the first and second circular grooves. By inserting the baffle into the first circular groove, the first circular groove is sealed to prevent the water inside the ring from leaking out. The presence of the circular block prevents the baffle from moving upward continuously, thus preventing the circular block from entering the ring and limiting the position of the baffle.

[0014] A further improvement of the technical solution of the present invention is that: the first vertical rod passes through the interior of the through groove, and the stop block is located below the circular block.

[0015] By adopting the above technical solution, the circular block is limited by the stop block to prevent the circular block from moving continuously downward, thereby preventing the stop plate from moving downward into the interior of the second circular groove.

[0016] A further improvement of the technical solution of the present invention is that: the spring is located around the through groove, the spring is also located around the first vertical rod, and the upper end of the spring is fixedly connected to the top wall of the second circular groove.

[0017] By adopting the above technical solution, the circular block is pushed down by a spring, thereby keeping the baffle inside the first circular groove without the action of external force, so as to maintain the sealing of the first circular groove.

[0018] A further improvement of the technical solution of the present invention is that the pull rod is located below the second circular groove.

[0019] By adopting the above technical solution, the pull rod can easily apply force to the circular block, so as to drive the circular block to move upward, that is, to apply compression force to the spring, so as to push the baffle to move upward and disengage from the interior of the first circular groove, so as to open the first circular groove and drain the water stored inside the ring.

[0020] Due to the adoption of the above technical solution, the present invention has achieved the following technical progress compared with the prior art.

[0021] 1. The device is attached to the outer surface of the water-based foundation pile by the first arc-shaped component. The friction between the device and the water-based foundation pile is increased by the first friction pad to prevent the first arc-shaped component from sliding freely up and down along the water-based foundation pile. Water is stored in the placement ring to increase the weight of the placement ring, that is, to increase the pressure borne by the water-based foundation pile. The water content in the placement ring is observed through the scale line to determine the increased weight of the placement ring.

[0022] 2. The friction between the second friction pad and the underwater foundation pile is increased to prevent the second arc-shaped part from sliding freely up and down with the underwater foundation pile. The second auxiliary block and the first auxiliary block are fixedly connected by bolts placed in the second through groove and the first through groove. Under the combined action of the second friction pad and the first friction pad, the first arc-shaped part and the second arc-shaped part are fixed to prevent them from sliding up and down along the outer surface of the underwater foundation pile.

[0023] 3. The second pipe of the water pump can be used to carry water, so that the water can enter the water pump through the second pipe. Then the water inside the water pump is transferred to the first pipe, and then injected into the placement ring through the first pipe, thereby transferring the water outside the water pile to the placement ring.

[0024] 4. By moving the baffle upwards, it disengages from the first circular groove, thereby opening the first circular groove. This allows the water inside the ring to drain to the outside through the first and second circular grooves. By inserting the baffle into the first circular groove, a seal is formed, preventing the water inside the ring from leaking out. The presence of the circular block prevents the baffle from moving upwards continuously, thus preventing the circular block from entering the ring and limiting the position of the baffle. The block also limits the circular block, preventing it from moving downwards and thus preventing the baffle from entering the second circular groove. A spring pushes the circular block downwards, keeping the baffle inside the first circular groove without external force, maintaining the seal of the first circular groove. A pull rod allows force to be applied to the circular block, causing it to move upwards, i.e., applying compression force to the spring to push the baffle upwards to disengage from the first circular groove, opening the first circular groove and facilitating the drainage of the water stored inside the ring. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the placement component structure of the present invention; Figure 3 This is a schematic diagram of the fixed component structure of the present invention; Figure 4 This is a schematic diagram of the placement ring and base plate structure of the present invention; Figure 5 This is a schematic diagram of the base plate structure of the present invention; Figure 6 This is a schematic diagram of the reverse side structure of the base plate of the present invention; Figure 7 This is a schematic diagram of the drainage component structure of the present invention.

[0026] In the picture: 100. Placement component; 101. Placement ring; 102. First arc-shaped component; 103. First auxiliary ring; 104. First auxiliary block; 105. First through groove; 106. First friction pad block; 107. Base plate; 107a. First circular groove; 107b. Second circular groove; 107c. Third circular groove; 108. Scale line; 200. Fixing component; 201. Second arc-shaped component; 202. Second auxiliary ring; 203. Second friction pad block; 204. Second auxiliary block; 205. Second through groove; 300. Liquid inlet component; 301. First pipe; 302. Water pump; 303. Second pipe; 400. Liquid drain component; 401. First vertical rod; 402. Stop block; 403. Circular block; 404. Through groove; 405. Spring; 406. Second vertical rod; 407. Baffle plate; 408. Pull rod. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to embodiments: Example 1 like Figure 1-7 As shown, the present invention provides an apparatus for a static load test of vertical compressive strength of underwater foundation piles, comprising, The placement component 100 includes a placement ring 101. A first arc-shaped component 102 is fixedly connected to the center of the placement ring 101. A first auxiliary ring 103 is fixedly connected to both ends of the first arc-shaped component 102. A first auxiliary block 104 is fixedly connected to the outer side of the first auxiliary ring 103. A first through groove 105 is opened through one side of the first auxiliary block 104. A first friction pad block 106 is fixedly connected to the inner wall of the first auxiliary ring 103. A base plate 107 is fixedly connected to the inner side of the bottom of the placement ring 101. Scale lines 108 are evenly arranged on the outer side of the placement ring 101. A first circular groove 107a is opened at the upper end of the base plate 107. A second circular groove 107b is opened through the bottom wall of the first circular groove 107a. A third circular groove 107c is also opened through the upper end of the base plate 107. The first arc-shaped component 102 is fitted onto the outer surface of the underwater foundation pile, and the first friction pad 106 is attached to the outer wall of the underwater foundation pile.

[0028] In this embodiment, the device is attached to the outer surface of the water-based foundation pile by the first arc-shaped member 102, and the friction between the first friction pad 106 and the water-based foundation pile is increased to prevent the first arc-shaped member 102 from sliding freely up and down with the water-based foundation pile.

[0029] Example 2 like Figure 1-7As shown, based on Embodiment 1, the present invention provides a technical solution: preferably, the fixing component 200 includes a second arc-shaped component 201 disposed on the side of the first arc-shaped component 102, both ends of the second arc-shaped component 201 are fixedly connected to a second auxiliary ring 202, the inner side of the second auxiliary ring 202 is fixedly connected to a second friction pad 203, the outer side of the second auxiliary ring 202 is fixedly connected to a second auxiliary block 204, and a second through groove 205 is provided through one side of the second auxiliary block 204; The second arc-shaped component 201 is sleeved on the outer surface of the underwater foundation pile, the second auxiliary ring 202 and the first auxiliary ring 103 are on the same horizontal plane, the second friction pad 203 is attached to the outer wall of the underwater foundation pile, and the second through groove 205 is connected to the first through groove 105.

[0030] In this embodiment, the friction between the second friction pad 203 and the underwater foundation pile is increased to prevent the second arc-shaped member 201 from sliding freely up and down with the underwater foundation pile. The second auxiliary block 204 and the first auxiliary block 104 are fixedly connected by the bolts placed in the second through groove 205 and the first through groove 105. Under the combined action of the second friction pad 203 and the first friction pad 106, the first arc-shaped member 102 and the second arc-shaped member 201 are fixed to prevent them from sliding up and down along the outer surface of the underwater foundation pile.

[0031] Example 3 like Figure 1-7 As shown, based on Embodiment 1, the present invention provides a technical solution: preferably, the liquid inlet assembly 300 includes a first pipe 301 fixedly connected to the inner wall of the third circular groove 107c, the lower end of the first pipe 301 is fixedly connected to a water pump 302, and the lower end of the water pump 302 is fixedly connected to a second pipe 303. The upper end of the first pipe 301 is placed inside the placement ring 101, and the lower end of the first pipe 301 is placed below the base plate 107. The second pipe 303 is the liquid inlet pipe, and the first pipe 301 is the liquid outlet pipe.

[0032] In this embodiment, the second pipe 303 of the water pump 302 can act on the water, so that the water can enter the interior of the water pump 302 through the second pipe 303. Then the water inside the water pump 302 is transferred to the first pipe 301, and then injected into the interior of the placement ring 101 through the first pipe 301, thereby transferring the water outside the water foundation pile to the interior of the placement ring 101.

[0033] Example 4 like Figure 1-7As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, the drainage assembly 400 includes a first vertical rod 401 fixedly connected to the top wall of the second circular groove 107b, a stop block 402 fixedly connected to the lower end of the first vertical rod 401, a circular block 403 slidably connected inside the second circular groove 107b, a through groove 404 extending through the outer side of the upper end of the circular block 403, a spring 405 fixedly connected to the outer side of the upper end of the circular block 403, a second vertical rod 406 fixedly connected to the center of the circular block 403, a baffle plate 407 fixedly connected to the upper end of the second vertical rod 406, and a pull rod 408 fixedly connected to the lower end of the circular block 403; The baffle 407 is slidably connected to the first circular groove 107a, and the outer wall of the baffle 407 is attached to the inner wall of the first circular groove 107a. The circular block 403 is located below the second circular groove 107b. The first vertical rod 401 passes through the interior of the through groove 404. The stop block 402 is located below the circular block 403. The spring 405 is located around the through groove 404 and also around the first vertical rod 401. The upper end of the spring 405 is fixedly connected to the top wall of the second circular groove 107b. The pull rod 408 is located below the second circular groove 107b.

[0034] In this embodiment, by moving the baffle 407 upward, the baffle 407 disengages from the first circular groove 107a, thereby opening the first circular groove 107a. This allows the water inside the ring 101 to drain to the outside through the first circular groove 107a and the second circular groove 107b. By inserting the baffle 407 into the first circular groove 107a, the first circular groove 107a is sealed to prevent the water inside the ring 101 from leaking out. The presence of the circular block 403 prevents the baffle 407 from moving upward continuously, i.e., prevents the circular block 403 from entering the ring 101, thus limiting the position of the baffle 407. The baffle 402 then controls the circular block 403. A limit is set to prevent the round block 403 from continuing to move downward, thereby preventing the baffle 407 from moving downward into the interior of the second round groove 107b. The round block 403 is pushed downward by the spring 405, thereby keeping the baffle 407 inside the first round groove 107a without being subjected to external force, so as to maintain the sealing of the first round groove 107a. The pull rod 408 facilitates the application of force to the round block 403, so as to drive the round block 403 upward, that is, to apply compression force to the spring 405, so as to push the baffle 407 upward to move out of the interior of the first round groove 107a, so as to open the first round groove 107a and facilitate the drainage of the water stored inside the placement ring 101.

[0035] The working principle of the device for the vertical compressive static load test of the underwater foundation piles will be explained in detail below.

[0036] like Figure 1-7As shown, when a vertical compressive static load test is required on a water-based foundation pile, the first arc-shaped component 102 and the second arc-shaped component 201 are first fitted onto the outer surface of the water-based foundation pile at a suitable position. The first arc-shaped component 102 and the second arc-shaped component 201 are fixed by external bolts through the second through groove 205 and the inside of the first through groove 105. Under the action of the second friction pad 203 and the first friction pad 106, the first arc-shaped component 102 and the second arc-shaped component 201 are prevented from shifting position on the outer surface of the water-based foundation pile. Next, the lower end of the second pipe 303 is inserted into the water, and the water pump 302 is started. Under the action of the water pump 302, the water is transferred sequentially through the second pipe 303, the water pump 302 and the first pipe 301 to the inside of the placement ring 101, thereby increasing the weight of the placement ring 101, that is, increasing the pressure borne by the water pile. The water content inside the placement ring 101 is observed through the scale line 108 to determine the increased weight of the placement ring 101, thereby determining the vertical compressive static load resistance of the water pile. When it is necessary to drain the water inside the placement ring 101, the pull rod 408 can be pushed upwards, causing the circular block 403 to move upwards, thereby pushing the baffle 407 upwards to disengage from the first circular groove 107a. As the circular block 403 moves upwards, the baffle 407 will move upwards synchronously until the circular block 403 is moved to the bottom of the second circular groove 107b, and the circular block 403 does not contact the second circular groove 107b, that is, there is a gap between the circular block 403 and the second circular groove 107b. In other words, during the upward movement of the second vertical rod 406, the baffle 407 disengages from the first circular groove 107a, thereby draining the water from the first circular groove 107a. A circular groove 107a is opened to facilitate the opening of the first circular groove 107a, thereby draining the water stored inside the placement ring 101 and compressing the spring 405. After the water inside the placement ring 101 is drained, the pull rod 408 can be released. At this time, the compressive force on the spring 405 disappears, and the spring 405 pushes the circular block 403 down under its rebound action, causing the baffle 407 to move down again into the first circular groove 107a. Under the blocking action of the baffle 402, the baffle 407 is prevented from continuing to move down, thereby completing the sealing of the first circular groove 107a.

[0037] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A device for static load testing of vertical compressive strength of underwater foundation piles, characterized in that, include, The placement assembly (100) includes a placement ring (101), which is connected to a first arc-shaped component (102). The first arc-shaped component (102) is connected to a first auxiliary ring (103), which is connected to a first auxiliary block (104). The first auxiliary block (104) has a first through groove (105). The first auxiliary ring (103) is connected to a first friction pad block (106). The placement ring (101) is connected to a base plate (107). The placement ring (101) has a scale line (108). The base plate (107) has a first circular groove (107a), a second circular groove (107b), and a third circular groove (107c). The fixing component (200) includes a second arc-shaped component (201) disposed on the side of the first arc-shaped component (102), the second arc-shaped component (201) is connected to a second auxiliary ring (202), the second auxiliary ring (202) is connected to a second friction pad (203), the second auxiliary ring (202) is connected to a second auxiliary block (204), and the second auxiliary block (204) is provided with a second through groove (205); The liquid inlet assembly (300) includes a first pipe (301), the first pipe (301) is connected to a water pump (302), and the water pump (302) is connected to a second pipe (303). The drainage assembly (400) includes a first vertical rod (401) on the second circular groove (107b).

2. The apparatus for static load testing of vertical compressive strength of underwater foundation piles according to claim 1, characterized in that: The drainage assembly (400) further includes a stop block (402) connected to the first vertical rod (401), a circular block (403) connected to the second circular groove (107b), a through groove (404) on the circular block (403), a spring (405) fixedly connected to the outer side of the upper end of the circular block (403), a second vertical rod (406) fixedly connected to the center of the circular block (403), a baffle (407) fixedly connected to the upper end of the second vertical rod (406), and a pull rod (408) fixedly connected to the lower end of the circular block (403). The first arc-shaped component (102) is sleeved on the outer surface of the underwater foundation pile, and the first friction pad (106) is attached to the outer wall of the underwater foundation pile.

3. The apparatus for static load testing of vertical compressive strength of underwater foundation piles according to claim 1, characterized in that: The second arc-shaped component (201) is fitted onto the outer surface of the underwater foundation pile. The second auxiliary ring (202) and the first auxiliary ring (103) are on the same horizontal plane. The second friction pad (203) is attached to the outer wall of the underwater foundation pile. The second through groove (205) is connected to the first through groove (105).

4. The apparatus for static load testing of vertical compressive strength of underwater foundation piles according to claim 1, characterized in that: The upper end of the first pipe (301) is placed inside the placement ring (101), the lower end of the first pipe (301) is placed below the base plate (107), the second pipe (303) is the inlet pipe, and the first pipe (301) is the outlet pipe.

5. The apparatus for static load testing of vertical compressive strength of underwater foundation piles according to claim 1, characterized in that: The baffle (407) is slidably connected to the first circular groove (107a), the outer wall of the baffle (407) is attached to the inner wall of the first circular groove (107a), and the circular block (403) is located below the second circular groove (107b).

6. The apparatus for static load testing of vertical compressive strength of underwater foundation piles according to claim 1, characterized in that: The first vertical rod (401) passes through the interior of the through slot (404), and the stop block (402) is located below the round block (403).

7. The apparatus for static load testing of vertical compressive strength of underwater foundation piles according to claim 1, characterized in that: The spring (405) is located around the through groove (404) and around the first vertical rod (401). The upper end of the spring (405) is fixedly connected to the top wall of the second circular groove (107b).

8. The apparatus for static load testing of vertical compressive strength of underwater foundation piles according to claim 1, characterized in that: The pull rod (408) is located below the second circular groove (107b).

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