Counter-force device for oblique bearing capacity detection

Abstract

The utility model discloses a counter-force device used for slant bearing capacity detection, which comprises a support, a counter-force beam, a ground anchor, a jack and a batter pile, the support comprises a first support mechanism and a second support mechanism, a set interval is arranged between the first support mechanism and the second support mechanism, the batter pile is arranged between the intervals, and the counter-force beam is connected with the ground anchor. The ground anchors are installed on the periphery of the first support mechanism and the periphery of the second support mechanism respectively in a supporting mode, one end of the counter-force beam in the length direction is installed on the first support mechanism in a rotating mode, the other end of the counter-force beam in the length direction is installed on the second support mechanism in a lifting mode in the vertical direction, and the jack is installed on a beam arm of the counter-force beam. And the jack and the inclined pile are leveled through a cushion block. The upper limiting rod and the lower limiting rod are used for fixing the left end of the counter-force beam, rotation of the counter-force beam at any angle is achieved by adjusting the height of the left end of the counter-force beam, and when the counter-force beam rotates to be parallel to the top face of the inclined pile, the jack is installed for inclined bearing capacity detection. Lifting of the screw rod can drive lifting of the left end of the counter-force beam, so that the detection requirements of different inclination angles are met, the defect that a pile body needs to be damaged in previous detection is overcome, and bearing capacity detection is more convenient and efficient.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for building engineering, and specifically relates to a reaction device for detecting oblique bearing capacity. Background Technology

[0002] In the development of foundation pit retaining engineering, a new type of support mode has gradually emerged, which uses inclined piles to provide inclined bearing capacity to achieve a force balance state in the retaining structure. However, the testing of this inclined bearing capacity often involves cutting the pile and placing jacks for testing. After the test is completed, the damaged pile needs to be restored, which is very inconvenient.

[0003] Therefore, a fast and efficient reaction force detection device for oblique bearing capacity testing is urgently needed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a reaction force device for detecting oblique bearing capacity.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides a reaction device for detecting oblique bearing capacity, including a support, a reaction beam, ground anchors, jacks, and inclined piles. The support includes a first support mechanism and a second support mechanism, with a set interval between the first support mechanism and the second support mechanism. The inclined piles are disposed between the intervals. The ground anchors are respectively supported and installed around the first support mechanism and the second support mechanism. One end of the reaction beam along its length is rotatably installed on the first support mechanism, and the other end of the reaction beam along its length is vertically liftable and installed on the second support mechanism. The jacks are installed on the beam arm of the reaction beam, and the jacks and inclined piles are leveled by pads.

[0007] Preferably, the first support mechanism includes a first support plate and a first support beam. The ground anchor is installed around the first support plate, and the first support beam is vertically installed on the first support plate. A first elongated mounting hole is provided on the first support beam along its length direction. One end of the reaction beam along its length direction is disposed in the first elongated mounting hole and is rotatably mounted on two opposite beam arms of the first support beam via a connecting shaft. The second support mechanism includes a second support plate and a second support beam. The ground anchor is installed around the second support plate. A set interval is provided between the second support plate and the first support plate, and their upper surfaces are horizontally flush. The second support beam is vertically installed on the second support plate. A second elongated mounting hole is provided on the second support beam along its length direction. An upper limit mounting hole and a lower limit mounting hole are provided on each of the two opposite beam arms of the second support beam along its length direction. The other end of the reaction beam along its length direction is disposed in the second elongated mounting hole and is vertically movable and height-adjustable on the two opposite beam arms of the first support beam via a limiting mechanism.

[0008] Preferably, the limiting mechanism includes an upper limiting rod, a lower limiting rod, and a screw. A screw is installed at both ends of the upper limiting rod and the lower limiting rod in the length direction. The two ends of the upper limiting rod and the lower limiting rod in the length direction are respectively inserted into the upper limiting mounting hole and the lower limiting mounting hole and are installed on the top plate of the second support beam by lifting and lowering through the screw.

[0009] Preferably, the upper beam arm of the reaction beam is provided with an upper positioning post, the lower beam arm of the reaction beam is provided with a lower positioning post, the upper limit rod abuts against the upper positioning post, and the lower limit rod abuts against the lower positioning post.

[0010] Preferably, a hook is installed at the center of the first support plate and the second support plate, and a counterweight is hung on the hook.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] In this invention, the upper and lower limit rods fix the left end of the reaction beam. By adjusting the height of the left end of the reaction beam, rotation of the beam at any angle is achieved. When the reaction beam is rotated to be parallel to the top surface of the inclined pile, a jack is installed for oblique bearing capacity testing. The raising and lowering of the screw can drive the raising and lowering of the left end of the reaction beam, thereby meeting the testing requirements for different inclination angles. This overcomes the drawback of previous testing methods that required damage to the pile body, making bearing capacity testing more convenient and efficient. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of one embodiment of the present utility model; Detailed Implementation

[0014] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0015] In the description of this utility model, it should be understood that the terms "left," "right," etc., indicating the orientation or positional relationship are based on the accompanying drawings. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0017] like Figure 1 As shown, this embodiment provides a reaction device for detecting oblique bearing capacity, including a support 1, a reaction beam 2, a ground anchor 5, a jack 7, and an inclined pile 8. The left end of the reaction beam is rotatably mounted on the support, and the right end of the reaction beam is vertically liftable and mounted on the support. The ground anchor 5 is installed around the support, the jack 7 is installed on the beam arm of the reaction beam 2, and the inclined pile 8 is set between the intervals of the support. The jack 7 and the inclined pile 8 are leveled by shims.

[0018] Specifically, the support 1 includes a first support mechanism 11 and a second support mechanism 12. The first support mechanism 11 includes a first support plate and a first support beam. The ground anchor 5 is supported and installed around the first support plate. The first support beam is vertically installed on the first support plate. A first elongated mounting hole is formed on the first support beam along its length. The left end of the reaction beam 2 is disposed in the first elongated mounting hole and is rotatably installed on two opposite beam arms of the first support beam via a connecting shaft. The second support mechanism 12 includes a second support plate and a second support beam. Anchors 5 are installed around the second support plate. A predetermined interval is provided between the second and first support plates, and their upper surfaces are horizontally flush. The second support beam is vertically installed on the second support plate. A second elongated mounting hole is formed along the length of the second support beam. Upper limit mounting holes and lower limit mounting holes are formed along the length of each of the two opposing beam arms of the second support beam. The right end of the reaction beam 2 is located in the second elongated mounting hole and is vertically movable to the two opposing beam arms of the first support beam via a limiting mechanism. The limiting mechanism includes an upper limit rod 4, a lower limit rod 3, and a screw 6. A screw 6 is installed at both ends of the upper limit rod 4 and the lower limit rod 3 along their length. The ends of the upper limit rod 4 and the lower limit rod 3 pass through the upper limit mounting hole and the lower limit mounting hole, respectively, and are vertically movable to the top plate of the second support beam via the screw 6. Example 2

[0019] As a preferred embodiment, the rest is the same as in embodiment 1, except that in this embodiment, the upper beam arm of the reaction beam 2 is provided with an upper positioning post, the lower beam arm of the reaction beam 2 is provided with a lower positioning post, the upper limit rod 4 abuts against the upper positioning post, and the lower limit rod 3 abuts against the lower positioning post. Example 3

[0020] In this preferred embodiment, the rest is the same as in Embodiment 1, except that hooks are also installed at the center of the first and second support plates, and counterweights are hung on the hooks. When the maximum load is large, the counterweights increase the weight of the reaction system to counteract the reaction force generated during the loading process.

[0021] The working principle of this embodiment will be further explained below:

[0022] The screw is connected to the top of the second support beam and its height is adjustable via a thread, thereby adjusting the tilt angle of the reaction beam. After adjusting the tilt angle, a jack is installed, and a pad is placed between the jack and the inclined pile (8) for leveling. The upper limit rod and the lower limit rod fix the left end of the reaction beam. By adjusting the height of the left end of the reaction beam, the reaction beam can be rotated at any angle. When the reaction beam is rotated to be parallel to the top surface of the inclined pile, a jack is installed to perform oblique bearing capacity testing. The lifting and lowering of the screw can drive the lifting and lowering of the left end of the reaction beam, thereby achieving the testing requirements of different tilt angles, breaking the previous drawback of needing to damage the pile body for testing, and making the bearing capacity testing more convenient and efficient. At the same time, the ground anchor can maintain the stability of the entire reaction system during the loading process.

[0023] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A reaction force device for oblique bearing capacity detection, characterized by, The system includes a support (1), a reaction beam (2), a ground anchor (5), a jack (7), and an inclined pile (8). The support (1) includes a first support mechanism (11) and a second support mechanism (12). There is a set interval between the first support mechanism (11) and the second support mechanism (12). The inclined pile (8) is set between the intervals. The ground anchor (5) is supported and installed around the first support mechanism (11) and the second support mechanism (12) respectively. One end of the reaction beam (2) is rotatably installed on the first support mechanism (11) in the length direction. The other end of the reaction beam (2) is vertically liftable and installed on the second support mechanism (12). The jack (7) is installed on the beam arm of the reaction beam (2). The jack (7) and the inclined pile (8) are leveled by a pad.

2. The reaction device for oblique bearing capacity detection according to claim 1, characterized in that, The first support mechanism (11) includes a first support plate and a first support beam. The ground anchor (5) is supported and installed around the first support plate. The first support beam is vertically installed on the first support plate. A first elongated mounting hole is opened on the first support beam along its length direction. One end of the reaction beam (2) along its length direction is set in the first elongated mounting hole and is rotatably installed on the two opposite beam arms of the first support beam through a connecting shaft. The second support mechanism (12) includes a second support plate and a second support beam. The ground anchor (5) is supported and installed around the second support plate. A set interval is provided between the second support plate and the first support plate and the upper surfaces of the two are horizontally flush. The second support beam is vertically installed on the second support plate. A second elongated mounting hole is opened on the second support beam along its length direction. An upper limit mounting hole and a lower limit mounting hole are opened on the two opposite beam arms of the second support beam along its length direction. The other end of the reaction beam (2) along its length direction is set in the second elongated mounting hole and is vertically and can be raised and lowered on the two opposite beam arms of the first support beam through a limiting mechanism.

3. The reaction device for oblique bearing capacity detection according to claim 2, characterized in that, The limiting mechanism includes an upper limit rod (4), a lower limit rod (3) and a screw (6). A screw (6) is installed at both ends of the upper limit rod (4) and the lower limit rod (3) in the length direction. The two ends of the upper limit rod (4) and the lower limit rod (3) in the length direction are respectively inserted into the upper limit mounting hole and the lower limit mounting hole and are installed on the top plate of the second support beam by the screw (6) in a lifting manner.

4. The reaction device for oblique bearing capacity detection according to claim 3, characterized in that, The upper beam arm of the reaction beam (2) is provided with an upper positioning post, and the lower beam arm of the reaction beam (2) is provided with a lower positioning post. The upper limit rod (4) abuts against the upper positioning post, and the lower limit rod (3) abuts against the lower positioning post.

5. The reaction device for oblique bearing capacity detection according to claim 2, wherein, Hooks are also installed at the center of the first support plate and the second support plate, and counterweights are hung on the hooks.

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