Photovoltaic pile single pile compression resistance static load test device

Abstract

The utility model provides a photovoltaic pile single-pile compression resistance static load test device, which relates to the technical field of photovoltaic pile compression resistance static load tests, and comprises a pressing block, a jack, a fixer, a ground anchor and a plurality of steel bar groups, the jack is arranged on the pressing block, and the output end of the jack and the pressing block are arranged oppositely or oppositely. The fixer is arranged at the top of the jack; the ground anchor is fixed in a soil layer; according to the device, the ground anchor is fixed in a soil layer, use of the terrain is not limited, the device is suitable for various complex terrains, the reinforcing steel bar sets facilitate reinforcing steel bar installation, the lengths of reinforcing steel bars in different directions are adjusted, installation is easy, cost is low, efficiency is high, and the device is suitable for popularization and application. The device is mostly applied to areas with complex and hard field conditions, and is suitable for a single-pile vertical compression resistance static load test of which the pile is higher than the ground.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic pile compression static load test technical field, concretely, relate to a kind of photovoltaic pile single pile compression static load test device. BACKGROUND

[0002] Photovoltaic pile single pile compression static load test is an important detection means for determining the vertical compression bearing capacity of photovoltaic pile foundation. This test gradually applies static load on the top of the pile, simulates the pressure the pile bears under actual working conditions, and monitors the settlement of the pile to assess whether the bearing performance of the pile foundation meets the design requirements. The test results not only provide a basis for the design of photovoltaic support foundation, but also verify whether the pile foundation construction quality is qualified during engineering acceptance.

[0003] The traditional static load test counterweight stacking method requires the construction of a stacking platform and the stacking of heavy objects before the test. When the test load is large, the volume and weight of the stacked objects increase, making the installation process complex and time-consuming. In addition, if the test site is narrow or the geological conditions are complex, the construction of the stacking platform will be more difficult. UTILITY MODEL CONTENT

[0004] The utility model aims at the problems in the prior art and provides a photovoltaic pile single pile compression static load test device that is suitable for various complex terrains and has a simple structure.

[0005] To achieve the above-mentioned purpose, the utility model employs the following technical solutions:

[0006] The utility model provides a photovoltaic pile single pile compression static load test device, which comprises a compression block, a jack, a fixer, a ground anchor, and a plurality of groups of reinforcing bars, wherein:

[0007] The compression block is arranged at the top end of the photovoltaic pile;

[0008] The jack is arranged on the compression block, and the output end of the jack is arranged opposite or away from the compression block;

[0009] The fixer is arranged at the top end of the jack;

[0010] The ground anchor is used to be fixed in the soil layer;

[0011] The reinforcing bar group is used to connect the ground anchor and the fixer, and a plurality of groups of reinforcing bars are evenly distributed in the circumferential direction along the axis direction of the fixer.

[0012] Optionally, the fixer comprises a connecting ring, a fixing plate, a connecting rod, and a nut, wherein:

[0013] The connecting ring is provided with a connecting port in the middle position, through which the jack top is sleeved, and a plurality of first holes are arranged on the ring body of the connecting ring in a circumferential distribution, and the axis of the first hole is parallel to the axis of the connecting ring.

[0014] The fixing plate is arranged at the top end of the jack, and a plurality of second holes are arranged on the fixing plate, and the second holes are respectively arranged corresponding to the first holes;

[0015] The connecting rod is provided with a stop block and a threaded connection part at both ends, respectively, and the steel bar group is connected to the connecting rod between the fixing plate and the connecting ring.

[0016] The nut and the threaded connection part are threadedly connected to fix the connecting rod, the connecting ring and the fixing plate.

[0017] Optionally, the steel bar group includes a first steel bar, a second steel bar and a connecting cylinder, one end of the first steel bar is fixed on the connecting rod, one end of the second steel bar is connected to the ground anchor, and the other end of the first steel bar and the second steel bar is respectively provided with an external thread, the inside of the connecting cylinder is provided with an internal thread, and the two ends of the connecting cylinder are respectively threadedly connected to the adjacent end threads of the first steel bar and the second steel bar.

[0018] Optionally, the depth of the ground anchor in the soil layer is greater than one meter, and the angle between the second steel bar and the surface of the soil layer is greater than 45°.

[0019] Optionally, the number of the connecting rods is eight, which are respectively connected to eight first steel bars.

[0020] Optionally, the pressing block is provided with a raised surrounding edge extending downward around the end of the photovoltaic pile, and the area formed by the surrounding edge matches the cross-sectional size of the photovoltaic pile, so that the photovoltaic pile is arranged in the area formed by the surrounding edge.

[0021] The utility model provides a kind of photovoltaic pile single pile compression static load test device, including briquetting, jack, fixer, ground anchor and several groups of reinforcing bar group, wherein: briquetting is arranged at photovoltaic pile top end;Jack is arranged on briquetting, and the output end of jack is opposite or back to briquetting arrangement;Fixer is arranged at the top of jack;Ground anchor is used to be fixed in soil layer;Reinforcing bar group is used to connect ground anchor and fixer, and several groups of reinforcing bar group are evenly distributed along the axis direction of fixer, and the device ground anchor is fixed in soil layer, not limit topography use, applicable to a variety of complex terrain, reinforcing bar group is convenient for reinforcing bar installation, and the length of each different direction reinforcing bar is adjusted, installation is simple, cost is low, efficiency is high, more applied in the area that field condition is more complex, arduous, applicable to the single pile vertical compression static load test of pile ground. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the present application, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, without paying creative labor, other related drawings can also be obtained according to these drawings.

[0023] Figure 1 It is a structure schematic view of the photovoltaic pile single pile compression static load test device provided by the embodiment of the present application.

[0024] Figure 2 It is a structure schematic view of the photovoltaic pile single pile compression static load test device provided by the embodiment of the present application.

[0025] Figure 3 It is Figure 1 The enlarged structure schematic view of A in the middle.

[0026] Figure 4 It is Figure 1 The enlarged structure schematic view of B in the middle.

[0027] Figure 5 It is the structure schematic view of connecting ring provided by the embodiment of the present application.

[0028] Figure: 1, ground anchor;21, first reinforcing bar;22, second reinforcing bar;23, connecting barrel;3, fixer;31, fixed plate;32, connecting ring;33, connecting rod;34, nut;4, photovoltaic pile;5, briquetting;6, jack. DETAILED DESCRIPTION

[0029] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. It should be noted that, in the case of no conflict, various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the protection scope of the present application.

[0030] The conventional dead load test weight stacking method needs to build a stacking platform and stack heavy objects before the test. When the test load is large, the volume and weight of the stacked objects increase, resulting in a complex and time-consuming installation process. In addition, if the test site is narrow or the geological conditions are complex, the stacking of the stacking platform will be more difficult. To solve the above problems, the embodiments of the present application provide a photovoltaic pile single pile compression static load test device, which is suitable for various complex terrains and has a simple structure.

[0031] As shown in Figure 1 The embodiments of the present application provide a photovoltaic pile single pile compression static load test device, which includes a pressing block 5, a jack 6, a fixer 3, a ground anchor 1, and a plurality of groups of reinforcing bars. The pressing block 5 is arranged at the top end of the photovoltaic pile 4. The jack 6 is arranged on the pressing block 5, and the output end of the jack 6 is arranged opposite or away from the pressing block 5. The fixer 3 is arranged at the top end of the jack 6. The ground anchor 1 is used to be fixed in the soil layer. The reinforcing bars are used to connect the ground anchor 1 and the fixer 3, and the plurality of groups of reinforcing bars are evenly distributed in the circumferential direction along the axis direction of the fixer 3. In the test process, the reinforcing bars and the ground anchor 1 are subjected to tension when the jack 6 is pressurized, and the reaction force is applied to the top end of the photovoltaic pile 4 to provide downward pressure for the photovoltaic pile 4. The ground anchor 1 of the device is fixed in the soil layer, which does not limit the use of the terrain and is suitable for various complex terrains. The reinforcing bars are easy to install, and the length of each reinforcing bar in different directions can be adjusted to consider the hardness and strength of the soil layer under various terrain conditions, select appropriate fixing points, and match reinforcing bars with different lengths to meet the fixation of the ground anchor 1.

[0032] As shown in Figure 3 and Figure 5As shown, the fixer 3 comprises a connecting ring 32, a fixing plate 31, a connecting rod 33 and a nut 34, wherein: the connecting ring 32 is provided with a connecting port in the middle position, the connecting ring 32 is sleeved on the top of the jack 6 through the connecting port, a plurality of first holes are arranged on the ring body of the connecting ring 32 in a circumferential distribution, and the axis of the first hole is parallel to the axis of the connecting ring 32; the fixing plate 31 is arranged at the top end of the jack 6, a plurality of second holes are arranged on the fixing plate 31, and the second holes are respectively arranged corresponding to the first holes; the connecting rod 33 is respectively provided with a stop block and a threaded connection part at both ends thereof, and the connecting rod 33 is connected between the fixing plate 31 and the connecting ring 32; the nut 34 is threadedly connected with the threaded connection part to fix the connecting rod 33, the connecting ring 32 and the fixing plate 31. Through the combination of the connecting ring 32, the fixing plate 31, the connecting rod 33 and the nut 34, a stable fixer is formed, and the jack 6 and the reinforcement group are effectively connected together, so that the close cooperation between the various components during the test is ensured. The connecting rod 33 is connected with the nut 34 through threads, which facilitates quick installation and disassembly, and improves the assembly efficiency of the test device.

[0033] As shown in the figure, Figure 4 The reinforcement group comprises a first reinforcement 21, a second reinforcement 22 and a connecting cylinder 23, one end of the first reinforcement 21 is fixed on the connecting rod 33, one end of the second reinforcement 22 is connected to the ground anchor 1, the other ends of the first reinforcement 21 and the second reinforcement 22 are respectively provided with external threads, the inside of the connecting cylinder 23 is provided with internal threads, and the two ends of the connecting cylinder 23 are respectively threadedly connected with the adjacent ends of the first reinforcement 21 and the second reinforcement 22. The connecting length of the first reinforcement 21 and the second reinforcement 22 can be conveniently adjusted through the connecting cylinder 23 to adapt to the requirements of different test sites and pile lengths, the first reinforcement 21 and the second reinforcement 22 are threadedly connected, which is convenient for installation and disassembly, firm in connection and capable of bearing a large pulling force, so that the reinforcement is ensured not to loosen or fall off during the test.

[0034] In the embodiment of the present application, the depth of the ground anchor 1 in the soil layer is greater than one meter, and the angle between the second reinforcement 22 and the surface of the soil layer is greater than 45°, so as to increase the friction and anchoring force between the ground anchor and the soil layer, and make the ground anchor more stable during the test and not easy to loosen or pull out.

[0035] As shown in the figure, Figure 2 In the embodiment of the present application, the number of the connecting rods 33 is eight, which are respectively connected with eight first reinforcements 21. The plurality of connecting rods 33 and the reinforcement group make the connection between the fixer 3 and the reinforcement group more uniform and stable, can effectively disperse and transfer the pulling force, and improve the bearing capacity and stability of the entire test device.

[0036] Specifically, the one end of the pressing block 5 towards the photovoltaic pile 4 is provided with a raised edge extending downward around the periphery, and the area formed by the raised edge matches the cross-sectional size of the photovoltaic pile 4, so that the photovoltaic pile 4 is placed in the area formed by the raised edge. The pressing block can better fit the top of the photovoltaic pile 4, ensuring that the pressure is uniformly transmitted to the pile top, avoiding test errors caused by uneven local stress, or damage to the test device.

[0037] Compared with the traditional static load test weight stacking method, the device is simple to install, low in cost and high in efficiency, and is mainly used in complex and harsh outdoor conditions. The test device is suitable for single pile vertical compression static load test of piles above ground.

[0038] The working process of the photovoltaic pile single pile compression static load test device provided by the embodiment of the application is as follows: during the photovoltaic pile single pile compression static load test, the pressing block 5 is placed on the top of the photovoltaic pile 4, the jack 6 is placed on the pressing block 5, the fixator 3 connected with the first reinforcing steel bar 21 is placed on the jack 6, the ground anchor 1 connected with the second reinforcing steel bar 22 is hammered into the soil layer not less than one meter, the ground anchor 1 has an angle of more than 45° with the soil layer, the other end of the second reinforcing steel bar 22 is connected with the first reinforcing steel bar 21 through the connecting cylinder 23, and the length of the reinforcing steel bar is adjusted according to the actual situation. When the jack 6 is pressurized, the reinforcing steel bar group and the ground anchor 1 are in tension, the reaction force is on the top of the photovoltaic pile 4, and the downward pressure is provided for the photovoltaic pile 4, so as to perform the photovoltaic pile single pile compression static load test.

[0039] The above is only the preferred embodiment of the application and is not used to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A photovoltaic pile single pile static load test device, characterized in that, The utility model relates to a photovoltaic pile fixing device, including briquetting (5), jack (6), fixer (3), ground anchor (1) and a plurality of groups of reinforcing bars, wherein: The briquetting (5) is arranged at the top end of the photovoltaic pile (4); The jack (6) is arranged on the briquetting (5), and the output end of the jack (6) is opposite or away from the briquetting (5); The fixer (3) is arranged at the top end of the jack (6); The ground anchor (1) is used for fixing in the soil layer; The reinforcing bar group is used for connecting the ground anchor (1) and the fixer (3), and a plurality of groups of reinforcing bars are uniformly distributed along the axial direction of the fixer (3).

2. The photovoltaic pile single pile static load test device according to claim 1, characterized in that, The fixer (3) includes a connecting ring (32), a fixing plate (31), a connecting rod (33) and a nut (34), wherein: The connecting ring (32) is provided with a connecting port in the middle position, which is sleeved on the top of the jack (6), and a plurality of first holes are arranged on the ring body of the connecting ring (32) in a circumferential distribution, and the axis of the first hole is parallel to the axis of the connecting ring (32); The fixing plate (31) is arranged at the top end of the jack (6), and a plurality of second holes are arranged on the fixing plate (31), and the second holes are respectively arranged corresponding to the first holes; The connecting rod (33) is provided with a stop block and a threaded connection part at both ends, and the reinforcing bar group is connected to the connecting rod (33) between the fixing plate (31) and the connecting ring (32); The nut (34) and the threaded connection part are threadedly connected to fix the connecting rod (33), the connecting ring (32) and the fixing plate (31).

3. The photovoltaic pile single pile static load test device according to claim 2, characterized in that, The reinforcing bar group includes a first reinforcing bar (21), a second reinforcing bar (22) and a connecting cylinder (23), one end of the first reinforcing bar (21) is fixed on the connecting rod (33), one end of the second reinforcing bar (22) is connected to the ground anchor (1), the other ends of the first reinforcing bar (21) and the second reinforcing bar (22) are respectively provided with external threads, and the inside of the connecting cylinder (23) is provided with internal threads, and the two ends of the connecting cylinder (23) are respectively threadedly connected with the adjacent ends of the first reinforcing bar (21) and the second reinforcing bar (22).

4. The photovoltaic pile single pile static load test device according to claim 3, characterized in that, The depth of the ground anchor (1) in the soil layer is greater than one meter, and the angle between the second reinforcing bar (22) and the surface of the soil layer is greater than 45 degrees.

5. The photovoltaic pile single pile static load test device according to claim 3, characterized in that, The number of the connecting rod (33) is 8, which is used for connecting eight first reinforcing bars (21).

6. The photovoltaic pile single pile static load test device according to claim 1, wherein, The end of the briquetting (5) towards the photovoltaic pile (4) is provided with a raised surrounding edge extending downward around, and the area formed by the surrounding edge matches the size of the cross section of the photovoltaic pile (4), so that the photovoltaic pile (4) is arranged in the area formed by the surrounding edge.

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