Umbrella-shaped single pile vertical compression resistance static load test device

Abstract

The invention discloses an umbrella-shaped single pile vertical compression resistance static load test device. The device comprises a column structure, a pull rod structure, a main beam structure and an auxiliary beam structure. The bottom end of the column structure is used for being placed on the top end face of a building foundation pile. The main beam structure comprises a plurality of main beams radially distributed around the bottom end direction of the column structure, the first ends of the main beams are connected to the bottom end of the column structure, and the second ends of the main beams extend in the direction away from the column structure; the auxiliary beam structure comprises a plurality of auxiliary beam assemblies, and the auxiliary beam assemblies are connected between every two adjacent main beams. The pull rod structure comprises a plurality of pull rod assemblies, and the pull rod assemblies are connected between the main beams and the top ends of the column structures so that the pull rod structures, the main beam structures, the auxiliary beam structures and the column structures can form a containing space for containing soil and rock piled objects. According to the scheme, a series of problems caused by the fact that a reinforced concrete counterweight is adopted in a single-pile vertical compression resistance static load test can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of single pile vertical compression static load test device, and particularly relates to an umbrella-shaped single pile vertical compression static load test device. BACKGROUND

[0002] In the field of construction, the building pile after construction needs to be subjected to single pile vertical compression static load test to verify whether the construction of the building pile meets the preset requirements. In the specific test process, the construction personnel places counterweights on the building pile, and applies the preset load (i.e. the design load of the building pile) to the building pile through the counterweights, so as to detect the sinking height of the building pile. Once the sinking height is within the design range, it means that the construction quality of the building pile meets the preset requirements.

[0003] In the related art, the construction party or the quality supervision party manufactures reinforced concrete counterweights according to the design load, and applies the preset load to the building pile through the reinforced concrete counterweights. In the process of testing, the inventors have found that once the reinforced concrete counterweights are formed, they can only adapt to the test of building piles of corresponding specifications (such as building piles of one pile diameter). Therefore, the construction party or the quality supervision party needs to configure reinforced concrete counterweights of different weights according to building piles of different specifications. In this case, since reinforced concrete counterweights of different weights need to be configured, more reinforced concrete counterweights need to be manufactured, which leads to high manufacturing cost of the counterweights. At the same time, when testing at different construction sites, heavy reinforced concrete counterweights need to be transported between construction sites, which leads to high transportation cost of the counterweights.

[0004] In addition, when testing at the construction site, heavy reinforced concrete counterweights need to be hoisted onto the building pile by large machinery. There are safety hazards such as falling of the counterweights in the hoisting process of the large machinery. Therefore, the single pile vertical compression static load test by the reinforced concrete counterweights in the related art also has safety risks. SUMMARY

[0005] The umbrella-shaped single pile vertical compression static load test device disclosed in the embodiments of the present application solves the problems of high manufacturing cost, high transportation cost, great safety hazards and inability to flexibly adapt to building piles of different specifications in the single pile vertical compression static load test by the reinforced concrete counterweights in the background art.

[0006] To solve the above technical problems, the present application provides the following technical solutions:

[0007] The umbrella-shaped single pile vertical compression static load test device is used for implementing single pile vertical compression static load test on a building foundation pile.

[0008] The bottom end of the column structure is used for being placed on the top end surface of the building foundation pile.

[0009] The auxiliary beam structure comprises a plurality of auxiliary beam assemblies, and the auxiliary beam assemblies are connected between two adjacent main beams.

[0010] Optionally, in the umbrella-shaped single pile vertical compression static load test device, the pull rod assembly comprises a plurality of pull rods, first ends of the plurality of pull rods are sequentially connected to the top end of the column structure along the axial direction of the column structure, and second ends of the plurality of pull rods are sequentially connected to the main beams along the extension direction of the main beams.

[0011] Optionally, in the umbrella-shaped single pile vertical compression static load test device, the first end of the pull rod is detachably connected to the top end of the column structure, and the second end of the pull rod is detachably connected to the main beam.

[0012] Optionally, in the umbrella-shaped single pile vertical compression static load test device, the column structure comprises a plurality of first column segments and a plurality of second column segments, the plurality of first column segments are sequentially and detachably connected to form at least the top end of the column structure, the plurality of second column segments are sequentially and detachably connected to form at least the bottom end of the column structure, and in the pull rod assembly, the first ends of the plurality of pull rods are one-to-one and detachably connected to the plurality of first column segments.

[0013] Optionally, in the umbrella-shaped single pile vertical compression static load test device, one of the first column segment and the first end of the pull rod is provided with a hooking hole, and the other is provided with a hook, and the first end of the pull rod is detachably connected through the hooking cooperation of the hook and the hooking hole.

[0014] And / or, the second end of the pull rod is detachably connected with the main beam.

[0015] And / or, the pull rod is a telescopic structure.

[0016] Optionally, in the umbrella-shaped single-pile vertical compression static load test device, the auxiliary beam assembly comprises a plurality of auxiliary beams, the plurality of auxiliary beams are distributed at intervals between two adjacent main beams, and two ends of the plurality of auxiliary beams are detachably connected with the two adjacent main beams, respectively.

[0017] Optionally, in the umbrella-shaped single-pile vertical compression static load test device, the first edge and the second edge of the main beam extending along the length direction of the main beam are both provided with a sunken platform, and the umbrella-shaped single-pile vertical compression static load test device further comprises a plurality of filling strips, the gap between two adjacent main beams is filled by the plurality of filling strips, and two ends of the filling strip are overlapped on the opposite sunken platforms of the two adjacent main beams, respectively.

[0018] Optionally, in the umbrella-shaped single-pile vertical compression static load test device, the bottom end of the column structure comprises a support, the support is provided with a plurality of connecting grooves, the plurality of connecting grooves are distributed in the circumferential direction, and the first ends of the plurality of main beams are detachably inserted into the plurality of connecting grooves, respectively.

[0019] Optionally, in the umbrella-shaped single-pile vertical compression static load test device, the umbrella-shaped single-pile vertical compression static load test device further comprises a first support plate, a plurality of jacks, a pressure sensor and a second support plate, the first support plate is used for being placed on the top end surface of the building pile, the plurality of jacks are arranged on the first support plate, the pressure sensor is arranged between the plurality of jacks and the second support plate, and the bottom end of the column structure is supported on the second support plate.

[0020] Optionally, in the umbrella-shaped single-pile vertical compression static load test device, the umbrella-shaped single-pile vertical compression static load test device further comprises a sinking height measuring device, and the sinking height measuring device is used for measuring the sinking height of the building pile.

[0021] The umbrella-shaped single-pile vertical compression static load test device disclosed by the embodiment of the present application has the following technical effects:

[0022] In the specific test process, the construction party or the quality supervision party can place the earth and rock load in the containing space, so as to apply a load to the building foundation pile through the umbrella-shaped single pile vertical compression static load test device, and the construction party or the quality supervision party can adjust the size of the counterweight formed by the umbrella-shaped single pile vertical compression static load test device and the earth and rock load by adjusting the amount of the earth and rock load placed in the containing space, so as to perform the single pile vertical compression static load test. Compared with the prefabricated reinforced concrete counterweight in the background art, the umbrella-shaped single pile vertical compression static load test device disclosed in the embodiment of the application can form the counterweight by placing the earth and rock load in the containing space by the operator at the construction site, and this structure can flexibly adjust the size of the counterweight by changing the amount of the earth and rock load, thereby being able to adapt to different load requirements of the single pile vertical compression static load test of building foundation piles of various specifications.

[0023] At the same time, since there is no need to prefabricate multiple types of counterweights, there is no need to spend the cost of prefabricating multiple types of reinforced concrete counterweights, and the problem of high manufacturing cost caused thereby can be avoided. Since the counterweight can be adjusted by fully utilizing the earth and rock at the construction site, only the umbrella-shaped single pile vertical compression static load test device needs to be transported between construction sites, compared with the heavy reinforced concrete counterweight that needs to be transported in the background art, the umbrella-shaped single pile vertical compression static load test device disclosed in the embodiment of the application is only part of the counterweight, so the transportation load is small, thereby reducing the transportation cost. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A structural schematic view of the umbrella-shaped single pile vertical compression static load test device disclosed in the embodiment of the application placed on the building foundation pile;

[0025] Figure 2 A structural schematic view of the main beam disclosed in the embodiment of the application;

[0026] Figure 3 A structural schematic view of the pull rod assembly disclosed in the embodiment of the application;

[0027] Figure 4 A structural schematic view of the auxiliary beam assembly disclosed in the embodiment of the application;

[0028] Figure 5 A structural schematic view of the first column joint disclosed in the embodiment of the application;

[0029] Figure 6 A structural schematic view of the second column joint disclosed in the embodiment of the application;

[0030] Figure 7 A structural schematic view of the support disclosed in the embodiment of the application.

[0031] BRIEF DESCRIPTION OF REFERENCE NUMERALS:

[0032] 10 - building foundation pile, 20 - column structure, 21 - first column section, 211 - hanging hole, 22 - second column section, 23 - support, 231 - connecting groove, 30 - pull rod structure, 31 - pull rod assembly, 311 - pull rod, 3111 - hook, 40 - main beam structure, 41 - main beam, 411 - sinking pad, 50 - auxiliary beam structure, 51 - auxiliary beam assembly, 511 - auxiliary beam, 60 - first support plate, 70 - jack, 80 - second support plate, 90 - sinking height measuring device. DETAILED DESCRIPTION

[0033] To make the objects, technical solutions and advantages of the present application clearer, the following will be combined with the specific embodiments of the present application and corresponding drawings to make a clear and complete description of the technical solutions disclosed by the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] The following will be combined with the drawings to specifically describe the technical solutions disclosed by the various embodiments of the present application.

[0035] Please refer to Figures 1 to 7 The embodiments of the present application disclose an umbrella-shaped single pile vertical compression static load test device, which is used for implementing single pile vertical compression static load test on a building foundation pile 10. The disclosed umbrella-shaped single pile vertical compression static load test device comprises a column structure 20, a pull rod structure 30, a main beam structure 40 and an auxiliary beam structure 50.

[0036] The column structure 20 is the main framework of the umbrella-shaped single pile vertical compression static load test device, and the bottom end of the column structure 20 is used for being placed on the top end face of the building foundation pile 10, so as to realize the placement of the whole umbrella-shaped single pile vertical compression static load test device on the building foundation pile 10. Specifically, the column structure 20 can be directly or indirectly placed on the top end face of the building foundation pile 10, which is not limited in the embodiments of the present application. For example, as described later, the column structure 20 can be placed on the top end face of the building foundation pile 10 in sequence through the second support plate 80, the jack 70 and the first support plate 60.

[0037] In order to better play the function of the main framework, the column structure 20 can be made of a high-strength metal material, for example, the column structure 20 can be made of steel. Of course, it can also be made of other high-strength non-metal materials. Considering the cost, those skilled in the art can use cheap steel, iron and other materials. In the embodiments of the present application, the column structure 20 extends vertically or substantially vertically.

[0038] The main beam structure 40 is a main beam of the umbrella-shaped single pile vertical compression static load test device, and extends transversely (i.e., extends in a horizontal direction) or substantially extends transversely. In the embodiment of the present application, the main beam structure 40 includes a plurality of main beams 41, which are distributed radially around the bottom end of the column structure 20. Specifically, the plurality of main beams 41 can be symmetrically distributed, for example, the plurality of main beams 41 are uniformly distributed around the bottom end of the column structure 20. In the embodiment of the present application, the main beam structure 40 includes at least three main beams 41, and of course, the embodiment of the present application does not limit the specific number of main beams 41 included in the main beam structure 40.

[0039] The first end of the plurality of main beams 41 is connected to the bottom end of the column structure 20, and the second end of the plurality of main beams 41 extends away from the column structure 20. Specifically, the main beam 41 can extend in a horizontal direction. It should be noted that the first end of the main beam 41 and the second end of the main beam 41 are two ends of the main beam 41 distributed in opposite directions along the length direction of the main beam 41.

[0040] The auxiliary beam structure 50 includes a plurality of auxiliary beam assemblies 51, and the auxiliary beam structure 50 plays an auxiliary role. The auxiliary beam assembly 51 is connected between two adjacent main beams 41, and in the embodiment of the present application, the auxiliary beam assembly 51 is connected between all two adjacent main beams 41. The auxiliary beam assembly 51 cooperates with the main beam 41 to form a support structure with relatively stable structure and high strength, thereby providing stable support for the soil and rock load in the accommodation space described below.

[0041] The tie rod structure 30 can further improve the stability of the support structure formed by the auxiliary beam assembly 51 and the main beam 41. The tie rod structure 30 includes a plurality of tie rod assemblies 31, and each main beam 41 and the top end of the column structure 20 are connected with a tie rod assembly 31, so that the tie rod structure 30, the main beam structure 40, the auxiliary beam structure 50 and the column structure 20 form an accommodation space for accommodating the soil and rock load. In a specific test process, the operator can directly fill the soil and rock in the construction site into the accommodation space to form the soil and rock load. The soil and rock load and the umbrella-shaped single pile vertical compression static load test device jointly apply a load to the building pile 10, thereby preparing for the test.

[0042] At the same time, the tie rod structure 30 connects the top end of the column structure 20 close to the center and the main beam 41, so that the column structure 20, the tie rod structure 30, the main beam structure 40 and the auxiliary beam structure 50 form a structure similar to an umbrella. Each vertical cross section of such a structure is similar to a triangle, which can improve the stability of the overall structure of the test device.

[0043] It should be noted that the earth-rock pile load in the present application can be the broken stone at the construction site, can be the soil at the construction site, or can be the mixture of the broken stone and the soil at the construction site. In general, the earth-rock pile load in the present application can be directly taken from the construction site without long-distance transportation.

[0044] In the specific test process, the construction party or the quality supervision party can place the earth-rock pile load in the containing space, so as to apply a load to the building pile 10 through the umbrella-shaped single pile vertical compression static load test device. The construction party or the quality supervision party can adjust the size of the counterweight formed by the umbrella-shaped single pile vertical compression static load test device and the earth-rock pile load by adjusting the amount of the earth-rock pile load placed in the containing space, so as to perform the single pile vertical compression static load test. Compared with the prefabricated reinforced concrete counterweight in the background art, the umbrella-shaped single pile vertical compression static load test device disclosed in the present application can form the counterweight by placing the earth-rock pile load in the containing space by the operator at the construction site. This structure can flexibly adjust the size of the counterweight by changing the amount of the earth-rock pile load, and thus can adapt to different load requirements of the single pile vertical compression static load test of the building pile 10 of various specifications (i.e., building piles of different diameters).

[0045] At the same time, since there is no need to prefabricate counterweights of various specifications, there is no need to spend the cost of prefabricating reinforced concrete counterweights of various specifications, and thus the problem of high manufacturing cost caused thereby can be avoided. Since the counterweight can be adjusted by fully utilizing the earth and rock at the construction site, only the umbrella-shaped single pile vertical compression static load test device needs to be transported between construction sites. Compared with the background art which needs to transport heavy reinforced concrete counterweights, the umbrella-shaped single pile vertical compression static load test device disclosed in the present application is only a part of the counterweight, and thus the transportation load is small, and thus the transportation cost can be reduced.

[0046] Moreover, compared with the large safety risk of hoisting heavy reinforced concrete counterweights by large machinery, the umbrella-shaped single pile vertical compression static load test device disclosed in the present application does not need to hoist heavy objects, and the operator can only fill the earth and rock in the containing space, and thus the safety risk is low.

[0047] In the present application, the pull rod assembly 31 can include a plurality of pull rods 311, the first ends of the plurality of pull rods 311 being connected to the top end of the column structure 20 in sequence along the axial direction of the column structure 20, and the second ends of the plurality of pull rods 311 being connected to the main beam 41 in sequence along the extension direction of the main beam 41. This structure can enable each main beam 41 to be further connected to the top end of the column structure 20 through the plurality of pull rods 311 while being connected to the column structure 20 at the first end, and thus the load stability of the main beam 41 can be improved.

[0048] In order to facilitate connection, in each of the pull rod assemblies 31, in the two adjacent pull rods 311, the first end of the inner pull rod 311 is lower than the first end of the outer pull rod 311, and the second end of the inner pull rod 311 is between the second end of the outer pull rod 311 and the bottom end of the column structure 20. Such a structure can prevent the pull rods 311 included in each of the pull rod assemblies 31 from crossing each other, thereby facilitating the assembly operation of the pull rods 311. In such a structure, the lengths of the pull rods 311 included in each of the pull rod assemblies 31 are different, for example Figure 3 As shown, the pull rod assembly 31 includes three pull rods 311, and the lengths of the three pull rods 311 increase in the direction from the inner side to the outer side.

[0049] In order to facilitate transportation, in the embodiment of the present application, the first end of the pull rod 311 can be detachably connected to the top end of the column structure 20, and the second end of the pull rod 311 can be detachably connected to the main beam 41. Specifically, the first end of the pull rod 311 and the top end of the column structure 20, and the second end of the pull rod 311 and the main beam 41 can be detachably connected through threaded connections, hooks, or the like, and the embodiment of the present application does not limit the specific detachable connection structure therebetween.

[0050] In the embodiment of the present application, the structure of the column structure 20 can be various, and the embodiment of the present application does not limit it. In one embodiment, the column structure 20 can be a high-strength tubular column of an integral structure. The embodiment of the present application discloses a specific structure of the column structure 20, and the disclosed column structure 20 can include a plurality of first column segments 21 and a plurality of second column segments 22.

[0051] The plurality of first column segments 21 can be detachably connected in sequence to form a first column segment of the column structure 20, and the first column segment includes the bottom end of the column structure 20, that is, the plurality of first column segments 21 are detachably connected in sequence to at least form the top end of the column structure 20. The two adjacent first column segments 21 can be detachably connected through a flange structure.

[0052] The plurality of second column segments 22 are sequentially and detachably connected to form a second column segment of the column structure 20, and the second column segment comprises a top end of the column structure 20, that is, the plurality of second column segments 22 are sequentially and detachably connected to at least form a bottom end of the column structure 20. The second column segment is axially connected to the first column segment, and specifically, the adjacent first column segment 21 and the second column segment 22 are detachably connected, so that the first column segment and the second column segment are detachably connected, and optionally, the adjacent first column segment 21 and the second column segment 22 can be detachably connected through a flange structure. In each pull rod assembly 31, the first ends of the plurality of pull rods 311 are one-to-one and detachably connected to the plurality of first column segments 21. Optionally, the adjacent two second column segments 22 can be detachably connected through a flange structure.

[0053] In the embodiment of the present application, the structure of the first column segment 21 can be the same as that of the second column segment 22, in which case the column structure 20 is essentially formed by sequentially and detachably connecting a plurality of the same column segments. Of course, in other embodiments, the structures of the first column segment 21 and the second column segment 22 can be different. For example, the first column segment 21 is provided with a connecting structure for detachable connection with the corresponding pull rod 311, in which case the first column segment 21 not only plays a role in forming the column structure 20, but also enables detachable connection with the pull rod 311 through the detachably connected connecting structure.

[0054] The adjacent two first column segments 21, the adjacent two second column segments 22, and the adjacent first column segment 21 and the second column segment 22 can be detachably connected through a threaded connection, a buckling structure, and the embodiment of the present application does not limit the specific detachable connection mode therebetween.

[0055] Regardless of whether the structures of the first column segment 21 and the second column segment 22 are the same or different, the designer can adjust the height of the column structure 20 by adjusting the number of the first column segment 21 or the second column segment 22, thereby facilitating the formation of an umbrella-shaped single pile vertical compressive static load test device of different specifications, and further enabling the umbrella-shaped single pile vertical compressive static load test device to better match the foundation pile 10 of a building of different specifications. At the same time, such a structure enables the column structure 20 to be disassembled into smaller segments, thereby facilitating subsequent transportation of the column structure 20.

[0056] In the embodiment of the present application, there are various detachable connection modes between the first column segment 21 and the first end of the pull rod 311, such as connection through a threaded connection, buckling structure clamping, etc., and the embodiment of the present application does not limit the specific detachable connection mode between the first column segment 21 and the first end of the pull rod 311.

[0057] In order to facilitate connection, in an embodiment, one of the first column segment 21 and the first end of the pull rod 311 can be provided with a hooking hole 211, and the other can be provided with a hook 3111. The first end of the pull rod 311 can be detachably connected with the hook 3111 through hooking cooperation with the hooking hole 211.

[0058] In order to realize disassembly and transportation, the second end of the pull rod 311 can also be detachably connected with the main beam 41. Similarly, the second end of the pull rod 311 can be connected with the main beam 41 through a connecting piece, a clamping structure, etc., and the embodiment of the present application does not limit the specific detachable connection mode between the second end of the pull rod 311 and the main beam 41.

[0059] As described above, the column structure 20 can change the height by adjusting the number of the first column segment 21 and the second column segment 22, and in order to better adapt to the connection, in an embodiment, the pull rod 311 can be a telescopic structure, that is, it can play the role of tensioning the column structure 20 and the main beam 41 by changing its length. In an embodiment, the pull rod 311 can be a hydraulic telescopic rod or an air telescopic rod.

[0060] In another embodiment, the pull rod 311 can include a threaded sleeve and a threaded column, the first end of the threaded sleeve can be detachably connected with the main beam 41, the second end of the threaded sleeve can be sleeved outside the first end of the threaded column and threadedly cooperated with the threaded column, and the second end of the threaded column can be detachably connected with the main beam 41. Such a structure can change the length of the pull rod 311 by rotating the threaded sleeve or the threaded column, and the operator can first drive the relative rotation of the threaded sleeve and the threaded column to adjust the length of the pull rod 311 to a suitable length, and then detachably connect the first end of the pull rod 311 with the column structure 20 and detachably connect the second end of the pull rod 311 with the main beam 41.

[0061] Of course, the pull rod 311 can also be a non-telescopic rod, in which case, pull rods 311 of various lengths can be configured to adapt to the height of the column structure 20. This method is slightly inconvenient and has a higher cost, but compared with the cost in the background art, it is still relatively low. It should be explained that the embodiment of the present application does not limit the specific structure of the pull rod 311.

[0062] In the embodiment of the present application, the auxiliary beam assembly 51 can have various structures, the auxiliary beam assembly 51 can connect two adjacent main beams 41 to form a more stable support structure with the main beam 41, and the auxiliary beam assembly 51 can include one auxiliary beam 511 or multiple auxiliary beams 511, and the embodiment of the present application does not limit the number of auxiliary beams 511 included in the auxiliary beam assembly 51.

[0063] In order to improve the stability of the support structure formed after the auxiliary beam assembly 51 connects the two adjacent main beams 41, in an embodiment, the auxiliary beam assembly 51 can include a plurality of auxiliary beams 511, which are spaced apart between the two adjacent main beams 41 and the two ends of the plurality of auxiliary beams 511 are detachably connected to the two adjacent main beams 41 respectively. That is, the auxiliary beam assembly 51 is arranged between every two adjacent main beams 41, and in the embodiment in which each auxiliary beam assembly 51 includes a plurality of auxiliary beams 511, it is equivalent to that a plurality of auxiliary beams 511 are spaced apart between every two adjacent main beams 41 and the two ends of the plurality of auxiliary beams 511 are detachably connected to the corresponding two adjacent main beams 41 respectively.

[0064] In this structure, each auxiliary beam assembly 51 includes a plurality of auxiliary beams 511, and the plurality of auxiliary beams 511 are spaced apart between the two main beams 41 to achieve reinforcement connection at multiple positions, thereby improving the stability of the support structure and facilitating more stable support of the earth and rock load.

[0065] In order to facilitate connection and avoid interference between the auxiliary beams 511, in an embodiment, in each auxiliary beam assembly 51, the plurality of auxiliary beams 511 are arranged in parallel in the direction away from the column structure 20.

[0066] In an embodiment, in the extension direction of the main beam 41, the two adjacent main beams 41 gradually move away from each other, and therefore, in the embodiment in which the auxiliary beam assembly 51 includes a plurality of auxiliary beams 511, the lengths of the plurality of auxiliary beams 511 in the direction away from the column structure 20 increase. Figure 4 For example, the auxiliary beam assembly 51 includes three auxiliary beams 511, and the lengths of the three auxiliary beams 511 increase.

[0067] In the embodiment of the present application, the two ends of the auxiliary beam 511 are detachably connected to the two adjacent main beams 41 respectively to facilitate disassembly. There are various ways to achieve detachable connection, for example, the two ends of the auxiliary beam 511 can be detachably connected to the two main beams 41 by insertion. For another example, the two ends of the auxiliary beam 511 can be detachably connected to the two main beams 41 by a threaded connection, and the embodiment of the present application does not limit the detachable connection mode between the two ends of the auxiliary beam 511 and the two adjacent main beams 41.

[0068] As described above, the soil and rock load can be filled into the accommodating space after the accommodating space is formed, and in a specific operation process, the gap between the two adjacent main beams 41 is not completely blocked by the auxiliary beam 511, so that a part of the soil and rock load is inevitably leaked during the filling process. Of course, the operator can appropriately select the size of the gravel of a suitable size in the construction site through the size of the hole of the hollow structure after the auxiliary beam 511 is installed to reduce the leakage. Of course, a mixture of some large-sized soil and rock can also be selected to reduce the leakage.

[0069] In order to facilitate filling and reduce the requirements for the soil and rock load, the umbrella-shaped single-pile vertical compressive static load test device disclosed in the embodiments of the present application can further include a plurality of filling assemblies, one filling assembly can be arranged between every two adjacent main beams 41, and the filling assembly is used for blocking the hollow structure formed between the auxiliary beam 511 and the main beam 41, so as to avoid the leakage during the filling of the soil and rock load and affect the filling efficiency.

[0070] The structure of the filling assembly can be various, for example, the filling assembly can be a waste cement bag, a paper box and the like filled in the hollow, and the embodiments of the present application do not limit the specific structure of the filling assembly. In a specific embodiment, the filling assembly can include a plurality of filling strips, and the filling strip can be a filling wood strip, a reinforcing steel bar and the like. The construction waste such as the waste wood strip and reinforcing steel bar can be found on the construction site, so as to be installed in the hollow structure after being adjusted in length, thereby achieving the blocking. This kind of mode can fully utilize the waste on the construction site, and does not additionally increase the cost, and is convenient for the operator to operate.

[0071] In the embodiments of the present application, the two ends of the filling strip are respectively detachably connected with the two adjacent main beams 41, so as to achieve the blocking of the hollow structure. The embodiments of the present application do not limit the specific detachable connection mode between the filling strip and the main beam 41. In an embodiment, the first edge and the second edge of the main beam 41 extending along the length direction are distributed opposite to each other and are both provided with a sink 411. The gap between the two adjacent main beams 41 is filled by a filling assembly, so as to solve the leakage problem of the hollow structure. The two ends of the filling strip included in each filling assembly can be respectively lapped on the opposite sinks 411 of the two adjacent main beams 41. In this mode, the two ends of the filling strip are respectively positioned in the sink 411, and in a specific operation process, the operator only needs to place the filling strip in the corresponding sink 411, which has the advantages of convenient, simple and fast operation. At the same time, the filling strip is relatively thin, and can be more flexible to block the hollow.

[0072] As described above, the first ends of the plurality of main beams 41 are connected to the bottom end of the column structure 20, and in order to facilitate disassembly and transportation, the first ends of the main beams 41 and the bottom end of the column structure 20 can be connected in a detachable manner. Of course, there are various detachable connection modes between the first ends of the main beams 41 and the bottom end of the column structure 20, and the embodiments of the present application are not limited thereto. For example, the first ends of the main beams 41 and the bottom end of the column structure 20 can be connected by a connecting piece (for example, a threaded connecting piece) to achieve detachable connection.

[0073] In other embodiments, the bottom end of the column structure 20 can include a support 23, and the support 23 is provided with a plurality of connecting grooves 231, which are distributed in the circumferential direction of the support 23, that is, the circumferential direction of the column structure 20. The first ends of the plurality of main beams 41 can be detachably inserted into the plurality of connecting grooves 231, thereby achieving detachable connection between the first ends of the main beams 41 and the bottom end of the column structure 20. Further, the plurality of connecting grooves 231 can be uniformly distributed in the circumferential direction of the support 23, and correspondingly, the plurality of main beams 41 can be uniformly distributed in the circumferential direction of the column structure 20, which is beneficial to improve the stress balance of the umbrella-shaped single pile vertical compression static load test device after bearing the load of the soil and stone pile.

[0074] The umbrella-shaped single pile vertical compression static load test device disclosed by the embodiments of the present application can further include a first support plate 60, a plurality of jacks 70, a pressure sensor, and a second support plate 80.

[0075] The first support plate 60 is used to be placed on the top end surface of the building foundation pile 10. The plurality of jacks 70 are arranged on the first support plate 60, the pressure sensor is arranged between the plurality of jacks 70 and the second support plate 80, and the bottom end of the column structure 20 is supported on the second support plate 80. The first support plate 60 and the second support plate 80 are beneficial to provide a larger and flatter support area, so that the first support plate 60 is beneficial to the arrangement of the plurality of jacks 70 arranged thereon, and the second support plate 80 is beneficial to the support placement of the column structure 20 thereon.

[0076] In a specific embodiment, the first support plate 60 and the second support plate 80 can both be steel plates, iron plates, or other plate-shaped pieces with high strength, and of course, the specific materials of the first support plate 60 and the second support plate 80 are not limited in the embodiments of the present application.

[0077] In the specific test process, the operator fills the soil and rock load in the containing space at the construction site, the plurality of jacks 70 are used to jack up the column structure 20, the pull rod structure 30, the main beam structure 40, the auxiliary beam structure 50, the filling assembly and the soil and rock load in the containing space, the pressure sensor detects the pressure to determine whether the applied load reaches the preset load, and the filling of the soil and rock load is stopped when the actual applied load reaches the preset load. After this is completed, it can be detected whether the actual sinking height of the building pile 10 meets the preset design range. Once the actual sinking height is within the design range (i.e., less than or equal to the preset sinking height), it indicates that the construction quality of the building pile meets the preset requirements. Once the actual sinking height is greater than the design range (i.e., greater than the preset sinking height), it indicates that the compression resistance of the building pile 10 cannot meet the relevant requirements of the construction, and the building pile 10 has quality problems, and then subsequent re-construction or strengthening construction treatment of the building pile 10 is performed.

[0078] In one embodiment, the jacks 70 can be four, and the first support plate 60 is a square plate. The four jacks 70 can be supported at the four corners of the first support plate 60, thereby achieving more balanced support.

[0079] In order to facilitate the measurement of the sinking height, the umbrella-shaped single-pile vertical compression static load test device disclosed in the embodiments of the present application can further include a sinking height measuring device 90 for measuring the actual sinking height of the building pile 10. The embodiments of the present application do not limit the specific type of the sinking height measuring device 90. For example, the sinking height measuring device 90 can be a dial gauge, and can also be a high-precision ruler, etc.

[0080] In the specific test process, the sinking height measuring device 90 can be arranged on a specially fixed support, and the movement distance of the building pile 10 relative to the support is detected based on the support. This movement distance can be considered as the actual sinking height of the building pile 10. Of course, the sinking height measuring device 90 can be arranged on the first support plate 60 or other components of the umbrella-shaped single-pile vertical compression static load test device, and a reference member (such as a support) is arranged beside the umbrella-shaped single-pile vertical compression static load test device. The movement distance can also be measured to obtain the actual sinking height.

[0081] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the specific embodiments described above. The specific embodiments described above are only illustrative, but not limiting. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims.

Claims

1. An umbrella-shaped monopile vertical compressive static load test device, used to conduct a monopile vertical compressive static load test on building foundation piles (10), characterized in that, The umbrella-shaped monopile vertical compressive static load test device includes a column structure (20), a tie rod structure (30), a main beam structure (40), and an auxiliary beam structure (50); wherein: The bottom end of the column structure (20) is used to be placed on the top end face of the building foundation pile (10); the main beam structure (40) includes multiple main beams (41) radially distributed around the bottom end of the column structure (20), the first end of the multiple main beams (41) is connected to the bottom end of the column structure (20), and the second end of the multiple main beams (41) extends away from the column structure (20); The auxiliary beam structure (50) includes multiple auxiliary beam assemblies (51), and the auxiliary beam assemblies (51) are connected between two adjacent main beams (41); the tie rod structure (30) includes multiple tie rod assemblies (31), and the tie rod assembly (31) is connected between each main beam (41) and the top of the column structure (20), so that the tie rod structure (31), the main beam structure (40), the auxiliary beam structure (50) and the column structure (20) form a space for accommodating the soil and rock load.

2. The umbrella-shaped monopile vertical compressive static load test device according to claim 1, characterized in that, The tie rod assembly (31) includes multiple tie rods (311). The first ends of the multiple tie rods (311) are sequentially connected to the top of the column structure (20) along the axial direction of the column structure (20). The second ends of the multiple tie rods (311) are sequentially connected to the main beam (41) along the extension direction of the main beam (41). In two adjacent tie rods (311), the first end of the tie rod (311) located on the inner side is lower than the first end of the tie rod (311) located on the outer side. The second end of the tie rod (311) located on the inner side is located between the second end of the tie rod (311) located on the outer side and the bottom end of the column structure (20).

3. The umbrella-shaped monopile vertical compressive static load test device according to claim 2, characterized in that, The first end of the tie rod (311) is detachably connected to the top of the column structure (20), and the second end of the tie rod (311) is detachably connected to the main beam (41).

4. The umbrella-shaped monopile vertical compressive static load test device according to claim 2, characterized in that, The column structure (20) includes a plurality of first column sections (21) and a plurality of second column sections (22). The plurality of first column sections (21) are detachably connected in sequence to form at least the top end of the column structure (20), and the plurality of second column sections (22) are detachably connected in sequence to form at least the bottom end of the column structure (20). In the tie rod assembly (31), the first ends of the plurality of tie rods (311) are detachably connected to the plurality of first column sections (21) in a one-to-one correspondence.

5. The umbrella-shaped monopile vertical compressive static load test device according to claim 4, characterized in that, One of the first column section (21) and the first end of the pull rod (311) is provided with a hook hole (211) and the other is provided with a hook (3111). The first end of the pull rod (311) is detachably connected by the hook (3111) and the hook hole (211). And / or, the second end of the tie rod (311) is detachably connected to the main beam (41); And / or, the pull rod (311) is a telescopic structure.

6. The umbrella-shaped monopile vertical compressive static load test device according to claim 1, characterized in that, The auxiliary beam assembly (51) includes multiple auxiliary beams (511), which are spaced apart between two adjacent main beams (41), and both ends of the multiple auxiliary beams (511) are detachably connected to the two adjacent main beams (41).

7. The umbrella-shaped monopile vertical compressive static load test device according to claim 6, characterized in that, The main beam (41) has a settling platform (411) at both its first and second edges along its length. The umbrella-shaped single pile vertical compressive static load test device also includes multiple filler strips. The gap between two adjacent main beams (41) is filled by the multiple filler strips. The two ends of the filler strips overlap the settling platforms (411) opposite to the two adjacent main beams (41).

8. The umbrella-shaped monopile vertical compressive static load test device according to claim 1, characterized in that, The bottom end of the column structure (20) includes a support (23), the support (23) has multiple connecting slots (231) distributed in its circumference, and the first ends of the multiple main beams (41) are detachably inserted into the multiple connecting slots (231).

9. The umbrella-shaped monopile vertical compressive static load test device according to claim 1, characterized in that, The umbrella-shaped monopile vertical compressive static load test device also includes a first support plate (60), multiple jacks (70), a pressure sensor, and a second support plate (80). The first support plate (60) is placed on the top end face of the building foundation pile (10). The multiple jacks (70) are located on the first support plate (60). The pressure sensor is located between the multiple jacks (70) and the second support plate (80). The bottom end of the column structure (20) is supported on the second support plate (80).

10. The umbrella-shaped monopile vertical compressive static load test device according to claim 9, characterized in that, The umbrella-shaped monopile vertical compressive static load test device also includes a sinking height measuring device (90), which is used to measure the sinking height of the building foundation pile (10).

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