Advanced steel pipe diagonal bracing pile structure facilitating bearing capacity detection

Abstract

The utility model provides an advanced steel pipe inclined strut pile structure facilitating bearing capacity detection. The advanced steel pipe inclined strut pile structure comprises a lower steel pipe inclined strut, an upper steel pipe inclined strut and detection equipment. The positions of the lower steel pipe inclined struts and the upper steel pipe inclined struts correspond to each other up and down, and the lower steel pipe inclined struts and the upper steel pipe inclined struts extend in the up-down direction; supporting pieces are arranged in the lower steel pipe inclined strut and the upper steel pipe inclined strut; the detection equipment comprises a control system and a telescopic device, the control system is in control connection with the telescopic device, one end of the telescopic device is detachably connected with a supporting piece on the lower steel pipe inclined strut, and the other end of the telescopic device is detachably connected with a supporting piece on the upper steel pipe inclined strut. A pressure sensor is arranged between the telescopic device and the supporting piece and is in signal connection with the control system. A crown beam connecting frame is arranged on the upper steel pipe inclined strut; according to the advanced steel pipe inclined strut pile structure convenient for detecting the bearing capacity, the bearing capacity of the advanced steel pipe can be rapidly detected, the detection steps are simplified, and the construction progress is accelerated.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit support, in particular to an advanced steel pipe inclined strut pile structure which is convenient for detecting bearing capacity. Background Art

[0002] Foundation pit support is a support, reinforcement and protection measure for the foundation pit side wall and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. In the inclined column support of the foundation pit support, an advanced steel pipe can be used as an inclined strut pile for inclined support.

[0003] The existing advanced steel pipe inclined strut pile usually inserts an integral advanced steel pipe into the soil by tilting and vibrating with a manipulator, and then fixedly connects multiple advanced steel pipes to the bearing platform through the construction of the capping beam. However, after the construction of the capping beam, it is necessary to detect the bearing capacity of the advanced steel pipe inclined strut pile after the construction of the capping beam. The integral advanced steel pipe is inclined and fixed between the soil and the bearing platform after the construction of the capping beam, and the space for placing the detection equipment is small, which is not convenient for quickly detecting the bearing capacity of the advanced steel pipe inclined strut pile. Generally, the test pile site detection is adopted, and its detection steps are relatively cumbersome, affecting the construction progress. Summary of the Utility Model

[0004] In order to solve the problem that it is not convenient to quickly detect the bearing capacity of the advanced steel pipe inclined strut pile in the background art, the utility model provides an advanced steel pipe inclined strut pile structure which is convenient for detecting bearing capacity.

[0005] The technical solution of the utility model is: it includes a lower steel pipe inclined strut, an upper steel pipe inclined strut and a detection device;

[0006] The lower steel pipe inclined strut and the upper steel pipe inclined strut are vertically corresponding, and both the lower steel pipe inclined strut and the upper steel pipe inclined strut extend in the vertical direction;

[0007] Supporting members are arranged inside both the lower steel pipe inclined strut and the upper steel pipe inclined strut;

[0008] The detection device includes a control system and a telescopic device. The control system is connected to the telescopic device for control. One end of the telescopic device is detachably connected to the supporting member on the lower steel pipe inclined strut, and the other end of the telescopic device is detachably connected to the supporting member on the upper steel pipe inclined strut;

[0009] A pressure sensor is arranged between the telescopic device and the supporting member, and the pressure sensor is signal-connected to the control system;

[0010] A capping beam connecting frame is arranged on the upper steel pipe inclined strut;

[0011] A connecting kit is arranged between the lower steel pipe inclined strut and the upper steel pipe inclined strut, and the connecting kit is used to connect the lower steel pipe inclined strut and the upper steel pipe inclined strut after the telescopic device is removed.

[0012] Preferably, the support member includes a mounting frame. The upper end of the inner wall of the lower steel pipe diagonal brace and the lower end of the inner wall of the upper steel pipe diagonal brace are both fixedly connected to the mounting frame. The upper surface of the mounting frame located inside the lower steel pipe diagonal brace and the lower surface of the mounting frame located inside the upper steel pipe diagonal brace are both fixedly connected with bearing plates;

[0013] The upper surface of the lower steel pipe diagonal brace and the lower surface of the upper steel pipe diagonal brace are both fixedly connected to the adjacent surfaces of the adjacent bearing plates;

[0014] The upper surface of the bearing plate located on the lower side is detachably connected with a telescopic device, and the telescopic end of the telescopic device is detachably connected with the lower surface of the bearing plate located on the upper side.

[0015] Preferably, the mounting frame is a cross-shaped cross steel plate, and stiffeners are fixedly connected to the cross-shaped cross steel plate.

[0016] Preferably, two positioning members are fixedly connected to the upper surface of the bearing plate located on the lower side. The two positioning members are corresponding left and right in position, and the telescopic device is located between the two positioning members.

[0017] Preferably, the connecting kit includes a steel bar hoop that is circumferentially and fixedly arranged on the upper steel pipe diagonal brace. The lower end of the steel bar hoop is fixedly connected with a plurality of outer sleeve steel plates arranged along its circumferential direction. The lower end of the outer sleeve steel plate extends below the upper end of the lower steel pipe diagonal brace, and the lower end of the outer sleeve steel plate is fixedly connected with the outer side surface of the lower steel pipe diagonal brace;

[0018] A plurality of outer sleeve steel plates are circumferentially arranged on the outer sides of the lower steel pipe diagonal brace and the upper steel pipe diagonal brace. The upper end of the outer sleeve steel plate is fixedly connected with the outer side surface of the upper steel pipe diagonal brace, and the lower end of the outer sleeve steel plate is fixedly connected with the outer side surface of the lower steel pipe diagonal brace. A steel bar hoop is hooped on the outer side surfaces of the plurality of outer sleeve steel plates. The steel bar hoop is fixedly sleeved on the outer surface of the upper steel pipe diagonal brace. The inner side surfaces of the outer sleeve steel plates close to the lower steel pipe diagonal brace are all fixedly connected with the outer surface of the steel pipe diagonal brace.

[0019] Preferably, the outer sleeve steel plate is arc-shaped, and its radian is adapted to the radian of the lower steel pipe diagonal brace and the upper steel pipe diagonal brace.

[0020] Advantages of the present utility model: The detection device is arranged inside the advanced steel pipe diagonal bracing pile during the construction process. After the detection is completed, the detection device can be quickly disassembled. At the same time, the integration of the advanced steel pipe diagonal bracing pile is completed through the connecting kit, and the bearing capacity of the advanced steel pipe diagonal bracing pile can be quickly detected after the construction of the capping beam is completed, simplifying the detection steps and accelerating the construction progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the main structure of Embodiment 1;

[0023] Figure 2 is Figure 1 Schematic diagram of the lower steel pipe diagonal brace and the outer steel plate structure of

[0024] Figure 3 is Figure 1 Schematic diagram of the outer steel plate and the steel bar hoop structure of

[0025] In the figure, 1 is the lower steel pipe diagonal brace, 2 is the outer steel plate, 3 is the steel bar hoop, 4 is the upper steel pipe diagonal brace, 5 is the crown beam connecting frame, 6 is the mounting frame, 7 is the bearing plate, and 8 is the detection device. Specific embodiments

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] Embodiment 1: This embodiment aims to propose a structure of an advanced steel pipe diagonal brace pile that is convenient for detecting bearing capacity.

[0028] According to Figures 1 to 3 shown, it includes a lower steel pipe diagonal brace 1, an upper steel pipe diagonal brace 4, and a detection device 8.

[0029] The lower steel pipe diagonal brace 1 and the upper steel pipe diagonal brace 4 are vertically corresponding, and both the lower steel pipe diagonal brace 1 and the upper steel pipe diagonal brace 4 extend in the vertical direction.

[0030] Supports are provided inside both the lower steel pipe diagonal brace 1 and the upper steel pipe diagonal brace 4. The support includes a mounting frame 6. The upper end of the inner wall of the lower steel pipe diagonal brace 1 and the lower end of the inner wall of the upper steel pipe diagonal brace 4 are both fixedly connected with a mounting frame 6. The mounting frame 6 is a cross-shaped intersecting steel plate, and stiffeners are fixedly connected to the cross-shaped intersecting steel plate. A bearing plate 7 is fixedly connected to the upper surface of the mounting frame 6 located inside the lower steel pipe diagonal brace 1 and the lower surface of the mounting frame 6 located inside the upper steel pipe diagonal brace 4. The upper surface of the lower steel pipe diagonal brace 1 and the lower surface of the upper steel pipe diagonal brace 4 are both fixedly connected to the adjacent surfaces of the adjacent bearing plates 7.

[0031] The detection device 8 includes a control system and a telescopic device. The telescopic device can be a hydraulic jack. The control system controls a quantitative hydraulic pump connected thereto. The control system drives the telescopic end of the hydraulic jack to lift by controlling the quantitative hydraulic pump to send pressure oil into the hydraulic jack.

[0032] The upper surface of the supporting plate 7 located on the lower side is connected with a telescopic device by bolts, and the telescopic end of the telescopic device is connected to the lower surface of the supporting plate 7 located on the upper side by bolts. The upper surface of the supporting plate 7 located on the lower side is fixedly connected with two positioning parts, and the positioning parts can be made of steel plates or steel bars. The positions of the two positioning parts correspond to each other on the left and right, and the telescopic device is located between the two positioning parts.

[0033] A pressure sensor is provided between the telescopic device and the supporting member, and the pressure sensor is connected with a control system signal.

[0034] A crown beam connecting frame 5 is arranged on the upper steel pipe diagonal brace 4, and the crown beam connecting frame 5 can be a steel cage.

[0035] A connection kit is provided between the lower steel pipe diagonal brace 1 and the upper steel pipe diagonal brace 4, and the connection kit includes a steel bar hoop 3 which is surrounded and fixed on the upper steel pipe diagonal brace 4, and the lower end of the steel bar hoop 3 is fixedly connected to a plurality of outer sleeve steel plates 2 which are arranged along the circumference thereof, and the lower end of the outer sleeve steel plate 2 extends to below the upper end of the lower steel pipe diagonal brace 1, and the lower end of the outer sleeve steel plate 2 is fixedly connected to the outer side surface of the lower steel pipe diagonal brace 1.

[0036] A plurality of outer sleeve steel plates 2 are circumferentially arranged on the outside of the lower steel pipe diagonal brace 1 and the upper steel pipe diagonal brace 4, the upper end of the outer sleeve steel plate 2 is fixedly connected to the outer side surface of the upper steel pipe diagonal brace 4, the lower end of the outer sleeve steel plate 2 is fixedly connected to the outer side surface of the lower steel pipe diagonal brace 1, and the outer sides of the plurality of outer sleeve steel plates 2 are hooped with steel bar hoops 3, the steel bar hoops 3 are fixedly sleeved on the outer surface of the upper steel pipe diagonal brace 4, the inner side surfaces of the outer sleeve steel plates 2 close to the lower steel pipe diagonal brace 1 are fixedly connected to the outer surface of the steel pipe diagonal brace 1, the outer sleeve steel plate 2 is arc-shaped, and its curvature is adapted to the curvature of the lower steel pipe diagonal brace 1 and the upper steel pipe diagonal brace 4.

[0037] Construction principle: The construction workers first use a manipulator to vibrate and tilt the lower steel pipe brace 1 into the soil, and then install the telescopic device, that is, the hydraulic jack, on the bearing plate 7 inside the lower steel pipe brace 1 through bolts, and then connect the upper steel pipe brace 4 with the telescopic end of the hydraulic jack by connecting the bearing plate 7 inside the upper steel pipe brace 4 with bolts.

[0038] At this time, the crown beam connection frame 5 should be located above the bearing platform, and the construction personnel connect the crown beam connection frame 5 with the bearing platform by pouring concrete, thereby carrying out the crown beam construction.

[0039] When the construction strength of the capping beam reaches 80% of its design strength, the construction workers use a hydraulic pump to feed the hydraulic jack. The telescopic end of the hydraulic jack moves upward to push the upper steel pipe diagonal brace 4 to move. The upper steel pipe diagonal brace 4 applies pressure upward to the capping beam, and the bearing capacity of the advanced steel pipe diagonal brace pile is detected through the hydraulic jack.

[0040] Meanwhile, during the process of the hydraulic jack pressing on the capping beam, the pressure sensor can be used to collect the pressure received by the capping beam, realizing the visualization of the bearing capacity.

[0041] If the bearing capacity is sufficient, the construction workers remove the hydraulic jack, then hoop the reinforcing steel hoop 3 on the upper steel pipe diagonal brace 4, and then weld the lower surfaces of the two outer steel plates 2 and the reinforcing steel hoop 3. At the same time, weld the inner sides of the two outer steel plates 2 close to the lower steel pipe diagonal brace 1 and the outer surface of the lower steel pipe diagonal brace 1, so as to connect the lower steel pipe diagonal brace 1 and the upper steel pipe diagonal brace 4 into one body.

[0042] If the bearing capacity is insufficient, the construction workers should add a reaction frame behind the capping beam, and then re-detect through the hydraulic jack until the bearing capacity is sufficient, and then remove the hydraulic jack and install the connection kit according to the above method.

[0043] The detection device is arranged inside the advanced steel pipe diagonal brace pile, and the detection device can be quickly disassembled after the detection. Therefore, the bearing capacity of the advanced steel pipe diagonal brace pile can be quickly detected after the capping beam construction, simplifying the steps for detecting the bearing capacity of the advanced steel pipe diagonal brace pile and accelerating the construction progress.

[0044] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An advanced steel pipe diagonal bracing pile structure that is convenient for testing bearing capacity, characterized in that: It comprises a lower steel pipe diagonal brace (1), an upper steel pipe diagonal brace (4) and a detection device (8); The lower steel pipe diagonal brace (1) and the upper steel pipe diagonal brace (4) are located in corresponding positions up and down, and both the lower steel pipe diagonal brace (1) and the upper steel pipe diagonal brace (4) extend in the up and down direction; Support members are provided inside the lower steel pipe diagonal brace (1) and the upper steel pipe diagonal brace (4); The detection device (8) comprises a control system and a telescopic device, the control system is control-connected to the telescopic device, one end of the telescopic device is detachably connected to a support member on the lower steel pipe diagonal brace (1), and the other end of the telescopic device is detachably connected to a support member on the upper steel pipe diagonal brace (4); A pressure sensor is provided between the telescopic device and the support member, and the pressure sensor is connected to the control system signal; A crown beam connecting frame (5) is provided on the upper steel pipe diagonal brace (4); A connection kit is provided between the lower steel pipe diagonal brace (1) and the upper steel pipe diagonal brace (4), and the connection kit is used to connect the lower steel pipe diagonal brace (1) and the upper steel pipe diagonal brace (4) after the telescopic device is removed.

2. According to the advanced steel pipe diagonal bracing pile structure for easy bearing capacity detection as claimed in claim 1, it is characterized by: The support member comprises a mounting frame (6), the upper end of the inner wall of the lower steel pipe diagonal brace (1) and the lower end of the inner wall of the upper steel pipe diagonal brace (4) are both fixedly connected to the mounting frame (6), and the upper surface of the mounting frame (6) located in the lower steel pipe diagonal brace (1) and the lower surface of the mounting frame (6) located in the upper steel pipe diagonal brace (4) are both fixedly connected to a bearing plate (7); The upper surface of the lower steel tube diagonal brace (1) and the lower surface of the upper steel tube diagonal brace (4) are both fixedly connected to adjacent surfaces of adjacent bearing plates (7); The upper surface of the bearing plate (7) located at the lower side is detachably connected to a telescopic device, and the telescopic end of the telescopic device is detachably connected to the lower surface of the bearing plate (7) located at the upper side.

3. According to claim 2, the advanced steel pipe diagonal bracing pile structure that is convenient for testing bearing capacity is characterized in that: The mounting frame (6) is a cross-shaped steel plate, and a stiffening rib is fixedly connected to the cross-shaped steel plate.

4. According to claim 2, the advanced steel pipe diagonal bracing pile structure that is convenient for testing bearing capacity is characterized in that: Two positioning members are fixedly connected to the upper surface of the bearing plate (7) located at the lower side, the two positioning members are located in corresponding positions on the left and right, and the telescopic device is located between the two positioning members.

5. The advanced steel pipe diagonal bracing pile structure for easy bearing capacity detection according to claim 1, characterized in that: The connection kit comprises a steel hoop (3) which surrounds and is fixedly arranged on the upper steel pipe diagonal brace (4), the lower end of the steel hoop (3) being fixedly connected to a plurality of outer jacket steel plates (2) arranged along the circumference thereof, the lower end of the outer jacket steel plate (2) extending to below the upper end of the lower steel pipe diagonal brace (1), and the lower end of the outer jacket steel plate (2) being fixedly connected to the outer side surface of the lower steel pipe diagonal brace (1); A plurality of outer sleeve steel plates (2) are circumferentially arranged on the outer sides of the lower steel pipe diagonal brace (1) and the upper steel pipe diagonal brace (4); the upper ends of the outer sleeve steel plates (2) are fixedly connected to the outer side surfaces of the upper steel pipe diagonal brace (4); the lower ends of the outer sleeve steel plates (2) are fixedly connected to the outer side surfaces of the lower steel pipe diagonal brace (1); steel bar hoops (3) are hooped on the outer sides of the plurality of outer sleeve steel plates (2); the steel bar hoops (3) are fixedly sleeved on the outer surfaces of the upper steel pipe diagonal brace (4); and the inner side surfaces of the outer sleeve steel plates (2) close to the lower steel pipe diagonal brace (1) are fixedly connected to the outer surfaces of the steel pipe diagonal brace (1).

6. The advanced steel pipe diagonal bracing pile structure for easy bearing capacity detection according to claim 5, characterized in that: The outer jacket steel plate (2) is arc-shaped, and its curvature matches the curvature of the lower steel pipe diagonal brace (1) and the upper steel pipe diagonal brace (4).

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