Detection device for vertical uplift static load test of overwater foundation pile

Abstract

The utility model relates to the technical field of overwater foundation pile detection, and particularly discloses a detection device for a vertical uplift static load test of an overwater foundation pile, which comprises a test pile, a counter-force beam group, a counter-force loading device, a buoyancy raft, two counter-force piles and two counter-force beam restraint devices, the two counter-force piles are located on the two sides of the test pile, the two counter-force piles and the buoyancy raft are all arranged above the buoyancy raft, the counter-force beam restraining device is arranged on the tops of the counter-force piles, the counter-force beam set is erected above the test pile and the two counter-force piles, the two ends of the counter-force beam set penetrate through the counter-force beam restraining device, and the counter-force loading device is arranged at the upper end of the test pile so that pulling resistance can be conveniently loaded. The two ends of the counter-force beam set are detachably connected with anti-disengaging baffles. According to the utility model, the counter-force beam is designed into a segmental assembly type, so that the problem that the counter-force beam of the water photovoltaic pile is difficult to transport and install is solved; the anti-falling baffles are designed at the two ends of the counter-force beam to prevent the risk that the counter-force beam restraining device falls off in the hoisting process, and the hidden danger of falling off can be avoided through simple matching.

Description

TECHNICAL FIELD

[0001] The utility model relates to water base pile detection technical field especially relates to a detection device for water base pile vertical uplift static load test. BACKGROUND

[0002] The base pile vertical uplift static load test is the key step of pile foundation quality acceptance, and the reaction force system is preferably provided with a support reaction force by a reaction pile, the reaction pile is provided with a support reaction force by an engineering pile, and the support reaction force can also be provided by a foundation according to the site condition, but the water base pile vertical uplift static load test can only use the reaction force system to provide the support reaction force by the reaction pile due to the special existing environment, and the water photovoltaic pile spacing is large, the required reaction beam is long, and the installation of the test site on the water is more difficult.

[0003] A kind of combined device and method for water anchor pile method vertical static load test are disclosed in Chinese invention patent application No.202310168537.8, which confirms the above-mentioned problems of long reaction beam, inconvenient installation and transportation, and there is also a hidden danger problem of deformation and easy falling off of both ends of the long reaction beam under stress in the disclosed technical solution.

[0004] Therefore, in order to improve the deficiencies of the above-mentioned prior art, it is necessary to propose an improvement to overcome the above-mentioned defects. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problems in the prior art and provides a detection device for water base pile vertical uplift static load test.

[0006] The technical solution of the utility model is: a detection device for water base pile vertical uplift static load test includes test pile, reaction beam group, reaction force loading device, buoyancy raft, two reaction piles and two reaction beam restraint devices, the two reaction piles are located on both sides of the test pile and all are arranged beside the buoyancy raft, the reaction beam restraint device is arranged at the top of the reaction pile, the reaction beam group is erected above the test pile and the two reaction piles and the two ends are arranged in the reaction beam restraint device, the reaction force loading device is arranged at the upper end of the test pile to facilitate the loading of uplift force, and the two ends of the reaction beam group are detachably connected with the anti-falling baffle.

[0007] In order to transport and install the reaction beam group, the reaction beam group includes reaction beam one and two reaction beam two, the reaction beam one is located between the two reaction beam two, the reaction beam one and the reaction beam two are detachably connected, the reaction beam one top middle is provided with a jack anti-falling cylinder, and the ends of the two reaction beam two away from the reaction beam one are detachably connected with the anti-falling baffle.

[0008] In order to avoid the anti-force beam constraint device to fall off and realize the quick alignment of the anti-force beam and the anti-force pile, the anti-force beam constraint device comprises a constraint sleeve, a positioning plate and a plurality of anti-falling hooks, the constraint sleeve is arranged above the positioning plate, the anti-force beam two can pass through the constraint sleeve, the positioning plate is detachably arranged at the top end of the anti-force pile, and the plurality of anti-falling hooks

[0009] The anti-force pile is symmetrically arranged on the positioning plate and is used for clamping the anti-force pile.

[0010] In order to facilitate the loading of the anti-pulling force, the anti-force loading device comprises a loading assembly, a hoop and a hydraulic jack, the loading assembly comprises a loading plate and two pull rods, the loading plate is connected through the two pull rods and the hoop, the hoop is detachably arranged on the upper end of the test pile to form a test pile loading system, and the hydraulic jack is arranged on the lower side of the loading plate.

[0011] In order to keep balance and facilitate use, the jack anti-falling cylinder is fixedly arranged at the middle position of the anti-force beam one, and a concave groove is arranged on the jack anti-falling cylinder, and the oil pipe matched with the hydraulic jack can pass through the concave groove.

[0012] In order to facilitate the installation of the hoop, the hoop is a splitable two half cylinder structure, comprising two sleeves and four closing assemblies, and the four closing assemblies are arranged at the two side joint positions of the two sleeves.

[0013] In order to avoid the relative sliding of the hoop and the test pile, the sleeve is provided with an anti-skid pad, the outer wall of the sleeve is provided with an ear plate, and the closing assembly comprises a connecting plate two and a plurality of bolts two.

[0014] The utility model adopts the above structure, and has the following advantages:

[0015] 1. The anti-force beam is designed into a sectional assembly type, so that the problems of transportation and installation of the anti-force beam of the water photovoltaic pile are solved, and the overall structure is simple and easy to realize.

[0016] 2. The anti-falling baffle is arranged at the two ends of the anti-force beam to prevent the anti-force beam constraint device from falling off in the lifting process, and the falling off risk can be avoided through simple matching.

[0017] 3. The anti-force beam constraint device is arranged on the anti-force pile to realize the quick alignment of the anti-force beam and the anti-force pile, and the installation is simple and the butt joint is quick.

[0018] 4. The anti-force loading device is arranged on the test pile to solve the problem that the pipe pile is difficult to load the anti-pulling force, and fundamentally improves the stability and reliability of the test. DETAILED DESCRIPTION

[0019] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0020] Figure 2It is the three-dimensional structure schematic view of the counterforce beam one of the utility model;

[0021] Figure 3 It is the three-dimensional structure schematic view of the counterforce beam restraint device of the utility model;

[0022] Figure 4 It is the three-dimensional structure schematic view of the loading assembly of the utility model;

[0023] Figure 5 It is the three-dimensional structure schematic view of the hoop of the utility model;

[0024] Figure 6 It is the half cut three-dimensional structure schematic view of the sleeve of the utility model.

[0025] In the drawing, 101, counterforce pile;102, test pile;210, counterforce beam one;211, jack anti-drop cylinder;212, concave groove;213, connecting plate one;220, counterforce beam two;221, anti-drop baffle;222, bolt one;3, counterforce beam restraint device;310, restraint sleeve;320, positioning plate;330, anti-drop clamping hook;4, counterforce loading device;410, loading plate;420, pull rod;430, hoop;431, sleeve;432, lug plate;433, closure assembly;434, non-slip pad;440, hydraulic jack;5, buoyant raft. DETAILED DESCRIPTION

[0026] In order to make the technical means, technical features, utility model purposes and technical effects realized by the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0027] Embodiment one:

[0028] As Figure 1 Indicated, a kind of for water-based foundation pile vertical uplift static load test detection device includes test pile 102, counterforce beam group, counterforce loading device 4, buoyant raft 5, two counterforce piles 101 and two counterforce beam restraint devices 3, two counterforce piles 101 are located test pile 102 both sides and three are installed in buoyant raft 5 side, and buoyant raft 5 floats on water surface;

[0029] Counterforce beam group includes counterforce beam one 210 and two counterforce beam two 220, counterforce beam one 210 is located in two counterforce beam two 220, counterforce beam one 210 and counterforce beam two 220 both ends are welded with connecting plate one 213, connecting plate one 213 is processed with multiple bolt holes, the both ends of counterforce beam one 210 are connected with two counterforce beam two 220 respectively by connecting plate one 213 and multiple bolt one 222, the end of two counterforce beam two 220 away from counterforce beam one 210 is connected with anti-drop baffle 221 by multiple bolt one 222, as Figure 2As shown, a jack anti-off cylinder 211 is welded in the middle of the top of the counter-force beam one 210, the inner diameter of the jack anti-off cylinder 211 is slightly larger than that of the hydraulic jack 440; a concave groove 212 is processed on the jack anti-off cylinder 211 for the oil pipe of the hydraulic jack 440 to pass through;

[0030] The counter-force beam restraint device 3 is installed on the top of the counter-force pile 101, and the counter-force beam group is erected above the test pile 102 and the two counter-force piles 101 and is inserted into the counter-force beam restraint device 3 at both ends, as shown in the figure Figure 3 As shown, the counter-force beam restraint device 3 includes a restraint sleeve 310, a positioning plate 320, and a plurality of anti-off hooks 330, the restraint sleeve 310 is welded above the positioning plate 320, the counter-force beam two 220 can pass through the restraint sleeve 310, the positioning plate 320 is detachably installed on the top end of the counter-force pile 101, and the plurality of anti-off hooks 330 are symmetrically arranged on the positioning plate 320 for clamping the counter-force pile 101, in order to facilitate clamping the top end of the counter-force pile 101, the anti-off hook 330 is an L-shaped structure;

[0031] The counter-force loading device 4 is installed on the upper end of the test pile 102 to facilitate the loading of the uplift resistance, and the counter-force loading device 4 includes a loading assembly, a hoop 430, and a hydraulic jack 440, as shown in the figure Figure 4 As shown, the loading assembly includes a loading plate 410 and two pull rods 420, the loading plate 410 is connected by the two pull rods 420 and the hoop 430, wherein the upper end of the pull rod 420 is connected with the loading plate 410 by bolts, and the lower end of the pull rod 420 is connected with the ear plate 432 by bolts, as shown in the figure Figure 5 As shown, the hoop 430 is a splitable two half-cylinder structure, including two sleeves 431 and four closure assemblies 433, the four closure assemblies 433 are respectively welded at the two side joints of the two sleeves 431, as shown in the figure Figure 6 As shown, the sleeve 431 is pasted with a non-slip pad 434, and the ear plate 432 is welded on the outer wall of the sleeve 431 at two-thirds of the distance from the upper opening, the closure assembly 433 includes a connecting plate two and a plurality of bolts two, the two sleeves 431 are closed and fixed on the upper end of the test pile 102 by the connecting plate two and the plurality of bolts two, and the hydraulic jack 440 is installed on the lower side of the loading plate 410 and is sleeved in the jack anti-off cylinder 211;

[0032] The ear plate 432 is upwardly directed from one end of the hoop 430 at two-thirds of the distance from the upper opening, and in the process of pressurizing the hydraulic jack 440, the non-slip pad 434 of the hoop 430 is pressed against the side wall of the test pile 102 more and more tightly, which can increase the friction between the non-slip pad 434 and the pile body;

[0033] The vertical uplift static load test is carried out:

[0034] First, preparation: with the help of external force, the two buoyant rafts 5 are symmetrically moved to the two sides of the test pile 102 and the counterforce pile 101, and then the subsequent operation is performed, the counterforce beam set is installed according to the distance between the counterforce pile 101 and the test pile 102, the counterforce beam one 210 is arranged in the middle, the counterforce beam two 220 is symmetrically arranged on the two sides of the counterforce beam one 210, the counterforce beam set is assembled into a shape, at this time, the anti-falling baffle 221 is fixed on the counterforce beam two 220 by the bolt one 222 and the direction is rotated downward, the restraint sleeve 310 in the counterforce beam restraint device 3 is respectively sleeved on one end of the counterforce beam two 220 away from the counterforce beam one 210, then the anti-falling baffle 221 is rotated upward and fixed on the counterforce beam two 220 by the bolt one 222 (as shown in Figure 1 Fig. 2), the counterforce beam set is hoisted, a plurality of anti-falling hooks 330 are aligned and lowered to the counterforce pile 101, the counterforce beam restraint device 3 is clamped on the upper end of the counterforce pile 101, the pull rod 420 is connected with the loading plate 410, the installation position of the clamp 430 on the test pile 102 is determined according to the position of the lower end of the pull rod 420, and the other end of the pull rod 420 is connected with the clamp 430.

[0035] Second, test: the loading plate 410 acts on the hydraulic jack 440, different levels of load pressure are applied to the hydraulic jack 440 according to the vertical uplift static load rating requirement of the test pile 102, the hydraulic jack 440 applies a vertical upward uplift force to the test pile 102 through the counterforce loading device 4; the vertical displacement value of the test pile 102 under the action of each level of load is recorded by the dial gauge; under the action of each level of pressure load, the uplift amount of the pile top in each hour does not exceed 0.1mm, and the stable standard is judged to appear continuously twice, then the next level of load can be applied, and finally the ultimate load required by the design is applied.

[0036] It should be noted that the above-mentioned buoyant raft 5 and bolt are applications of the prior art, in addition, the above-mentioned bolts are used together with nuts, and the bolts and nuts are selected to be high-strength bolts and high-strength nuts, and the test process mentioned above is a conventional test setting in the art and is not described in detail.

[0037] In summary, only the preferred embodiments of the present application are described above, and the embodiments are not used to limit the scope of the application. Any equivalent changes and modifications made according to the content of the application scope of the present application shall belong to the technical scope of the present application.

Claims

1. A detection device for vertical uplift static load test of water-based pile, characterized in that: The test pile (102), the counterforce beam set, the counterforce loading device (4), the buoyancy raft (5), two counterforce piles (101) and two counterforce beam restraint devices (3), the two counterforce piles (101) are located on both sides of the test pile (102) and are arranged beside the buoyancy raft (5), the counterforce beam restraint device (3) is arranged on the top of the counterforce pile (101), the counterforce beam set is erected above the test pile (102) and the two counterforce piles (101) and is arranged in the counterforce beam restraint device (3) at both ends, the counterforce loading device (4) is arranged at the upper end of the test pile (102) to facilitate the loading of the uplift resistance, and the counterforce beam set is detachably connected with the anti-disengagement baffle (221) at both ends.

2. The detection device for vertical uplift static load test of water-based pile according to claim 1, characterized in that: The counterforce beam set comprises a counterforce beam one (210) and two counterforce beam twos (220), the counterforce beam one (210) is located between the two counterforce beam twos (220), the counterforce beam one (210) and the counterforce beam two (220) are detachably connected, a jack anti-disengagement cylinder (211) is arranged at the top of the counterforce beam one (210), and the counterforce beam two (220) is detachably connected with the anti-disengagement baffle (221) at one end away from the counterforce beam one (210).

3. The detection device for vertical uplift static load test of water-based pile according to claim 2, characterized in that: The counterforce beam restraint device (3) comprises a restraint sleeve (310), a positioning plate (320) and a plurality of anti-disengagement hooks (330), the restraint sleeve (310) is arranged above the positioning plate (320), the counterforce beam two (220) can pass through the restraint sleeve (310), the positioning plate (320) is detachably arranged at the top end of the counterforce pile (101), and a plurality of the anti-disengagement hooks (330) are symmetrically arranged on the positioning plate (320) for clamping the counterforce pile (101).

4. The detection device for vertical uplift static load test of water-based pile according to claim 3, characterized in that: The counterforce loading device (4) comprises a loading assembly, a hoop (430) and a hydraulic jack (440), the loading assembly comprises a loading plate (410) and two pull rods (420), the loading plate (410) is connected by the two pull rods (420) and the hoop (430), the hoop (430) is detachably arranged at the upper end of the test pile (102) to form a test pile (102) loading system, the hydraulic jack (440) is arranged on the lower side of the loading plate (410), and the hydraulic jack (440) is sleeved in the jack anti-disengagement cylinder (211).

5. The detection device for vertical uplift static load test of water-based pile according to claim 4, characterized in that: The jack anti-disengagement cylinder (211) is fixedly arranged at the middle position of the counterforce beam one (210), and a concave groove (212) is arranged on the jack anti-disengagement cylinder (211) and can pass through the oil pipe matched with the hydraulic jack (440).

6. The detection device for vertical uplift static load test of water-based pile according to claim 5, characterized in that: The hoop (430) is a splitable two-half-cylinder structure, comprising two sleeves (431) and four closure assemblies (433), and four closure assemblies (433) are arranged at the two side joints of the two sleeves (431).

7. The detection device for vertical uplift static load test of water-based pile according to claim 6, characterized in that: The sleeve (431) is provided with a non-slip pad (434) inside, and an ear plate (432) is arranged on the outer wall of the sleeve (431), and the closing assembly (433) comprises the second connecting plate and a plurality of second bolts.

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