A foundation pit slope protection device

Abstract

This application relates to the field of foundation pit support, and in particular to a foundation pit slope support device, comprising an anchor body, a reinforcement component, and a locking component. When supporting a foundation pit slope, the anchor body is first inserted into a pre-drilled hole. Then, grout is injected into the anchor body. After the concrete hardens, a connection is established between the foundation pit slope and the anchor body. During the grouting process, the reinforcement component on the anchor body reinforces the connection between the anchor body, the foundation pit slope soil, and the concrete grout. Simultaneously, the locking component locks the reinforcement component, thereby making the entire anchor body more stable in supporting the foundation pit slope. This application, to a certain extent, solves the problem in related technologies where anchors may shift or loosen, reducing the stability of the support and leading to slope instability or a decrease in the anchor's bearing capacity.

Description

Technical Field

[0001] This application relates to the field of foundation pit support, and in particular to a foundation pit slope support device. Background Technology

[0002] Currently, foundation pit slope protection is an engineering measure used during foundation pit excavation to prevent slope collapse and protect surrounding structures. Its main purpose is to ensure the stability of the foundation pit slope to prevent earthwork collapse and potential accidents. Commonly used techniques include earthwork lateral thrust, steel bracing, soil nailing walls, geogrids, and anchor bolts to prevent soil instability.

[0003] Grouting anchors are a common method for supporting foundation pit slopes, also known as grouting anchors or grouting anchor cables. They utilize grouting materials to firmly connect the anchor to the surrounding soil, providing slope stability and anti-sliding capabilities. However, grouting anchors are prone to problems such as grouting quality issues, anchor instability, incorrect selection of grouting materials, and lack of monitoring and maintenance.

[0004] In the aforementioned technologies, if the installation and grouting process of the grouting anchor is not performed correctly, the anchor may shift or loosen, thereby reducing the stability of the support and leading to slope instability or a decrease in the bearing capacity of the anchor. Summary of the Invention

[0005] In order to address the problem that anchor bolts may shift or loosen in related technologies, thereby reducing the stability of the support and leading to slope instability or a decrease in the bearing capacity of the anchor bolts, this application provides a foundation pit slope support device.

[0006] The technical solution for a foundation pit slope protection device provided in this application is as follows:

[0007] A foundation pit slope protection device includes:

[0008] The anchor bolt body has one end as an insertion end and the other end as a grouting end. The insertion end is inserted into the soil of the foundation pit slope, and the grouting end is used to inject grout into the anchor bolt body.

[0009] The reinforcement component includes grouting holes, insertion holes, and insertion nails. Both the grouting holes and the insertion holes are located on the anchor bolt body. The grouting holes allow grout from within the anchor bolt body to flow into the soil of the foundation pit slope. The insertion nails are rotatably connected to the inner wall of the anchor bolt body and slidably pass through the insertion holes. The insertion nails are used to enhance the stability of the foundation pit slope soil.

[0010] A locking component for locking the insertion pin onto the anchor body.

[0011] By adopting the above technical solution, the foundation pit slope support device is configured as a combination of anchor body, reinforcement component, and locking component. When the slope soil needs to be reinforced, the workers only need to insert the plug end of the anchor body into the pre-drilled foundation pit slope hole, and then grout is injected into the anchor body through the grouting hole. During the grouting process, the grouting hole of the reinforcement grouting allows the grout inside the anchor body to flow into the hole. The plug is pushed into the plug hole by the pressure of the grout. The plug pushed into the plug hole will bond with the concrete grout that enters the foundation pit slope hole from the grouting hole. At the same time, under the action of the locking component, the plug can be stably locked on the anchor body. This application has a certain degree of effectiveness in solving the problem that the anchor may shift or loosen in the related technology, thereby reducing the stability of the support and causing slope instability or a decrease in the bearing capacity of the anchor.

[0012] Optionally, the insertion pin includes a pin head, a pin tip, and a torsion portion. The torsion portion is disposed on the inner side wall of the anchor bolt body. The pin head is rotatably connected to the torsion portion. The pin tip is fixedly connected to the end of the insertion pin away from the pin head. The pin head is pushed by the concrete slurry to rotate around the torsion portion. The pin tip passes through the insertion hole and contacts the concrete slurry outside the anchor bolt body.

[0013] By adopting the above technical solution, the insertion nail is configured as a combination of nail head, nail tip and torsion part, so that when the insertion nail is pushed by concrete slurry, it can be effectively rotated, which ensures that the insertion nail can be smoothly inserted into the insertion hole.

[0014] Optionally, the locking assembly includes a first locking member and a second locking member. The first locking member is fixedly connected to the head of the insert pin, and the second locking member is fixedly inserted through the wall of the insert hole. The first locking member and the second locking member are magnetically connected.

[0015] By adopting the above technical solution, the locking component is set as a combination of a first locking element and a second locking element. At the same time, the first locking component and the second locking component are magnetically connected, so that the locking component can quickly and conveniently lock the plug pin onto the anchor rod body.

[0016] Optionally, multiple grouting holes and multiple insertion holes are provided, with each of the multiple grouting holes corresponding to one of the multiple insertion holes, and the multiple grouting holes and multiple insertion holes are staggered along the length direction of the anchor body.

[0017] By adopting the above technical solution, multiple grouting holes and insertion holes are provided, and the multiple grouting holes and multiple insertion holes are staggered along the length direction of the anchor body. Correspondingly, multiple insertion nails are also provided, so that the anchor body can be effectively reinforced along the entire length direction, thereby improving the stability of the foundation pit slope support device of this application.

[0018] Optionally, the diameter of the connector pin is smaller than the diameter of the connector hole.

[0019] By adopting the above technical solution, the diameter of the insertion pin is set to be smaller than the diameter of the insertion hole, making it easier to insert the insertion pin.

[0020] Optionally, the inner wall of the anchor bolt body is rectangular.

[0021] By adopting the above technical solution, the inner wall of the anchor bolt body is set into a rectangle, which makes it easier to set the insertion pins and insertion holes.

[0022] Optionally, the connector pin may also be provided with an auxiliary pin, and multiple auxiliary pins may be provided, which are evenly distributed along the outer side wall of the connector pin.

[0023] By adopting the above technical solution and setting multiple auxiliary nails, the reinforcement effect of the reinforcement components on the anchor bolt body is effectively improved.

[0024] Optionally, a sealing sleeve is fixedly connected to the first locking member, and a puncture needle is fixedly connected to the inner side wall of the anchor bolt body. The sealing sleeve contains sealant, and the puncture needle can puncture the sealing sleeve.

[0025] By adopting the above technical solution, the sealing sleeve and the piercing needle are designed so that after the first locking member and the second locking member are locked, the sealant can quickly seep out and seal immediately, effectively reducing the possibility of the first locking member and the second locking member separating, and further improving the stability of the locking assembly.

[0026] Optionally, multiple pins are provided, and the multiple pins are evenly arranged along the periphery of the second locking member.

[0027] By adopting the above technical solution, multiple puncture needles are set so that the sealing sleeve can be broken quickly, and the sealant inside the sealing sleeve can be quickly overflowed to seal the first locking member and the second locking member.

[0028] Optionally, the sealant contained in the sealing sleeve is a silicone sealant.

[0029] By adopting the above technical solution, the silicone sealant can effectively and quickly lock the first locking member and the second locking member together, effectively reducing the impact of concrete grout on the locking effect of the locking components.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. By setting the foundation pit slope support device as a combination of anchor body, reinforcement component and locking component, when supporting the foundation pit slope, it is only necessary to insert the plug end of the anchor body into the pre-drilled foundation pit slope hole, and then grout into the anchor body through the grouting hole. During the grouting process, the reinforcement component will reinforce the anchor body. After the reinforcement component has reinforced the anchor body, the locking component can further enhance the stability of the reinforcement component, which in turn enhances the stability of the anchor body. This application has a certain degree of effect in solving the problem that the anchor may be displaced or loosened in the related technology, thereby reducing the stability of the support and causing slope instability or a decrease in the bearing capacity of the anchor.

[0032] 2. By setting the locking component as a combination of a first locking element and a second locking element, and with the first locking component and the second locking component being magnetically connected, the locking component can quickly and easily lock the plug pin onto the anchor bolt body;

[0033] 3. The addition of multiple auxiliary nails effectively enhances the reinforcement effect of the reinforcement components on the anchor bolt body. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of a foundation pit slope support device before grouting, according to an embodiment of this application.

[0035] Figure 2 yes Figure 1 A magnified view of region A in the middle.

[0036] Figure 3 This is a schematic diagram of the overall structure of a foundation pit slope support device after grouting, according to an embodiment of this application.

[0037] Figure 4 This is a detailed schematic diagram of the insertion nail and locking structure of a foundation pit slope support device before grouting, according to an embodiment of this application.

[0038] Figure 5 yes Figure 4 A detailed diagram from another perspective.

[0039] Figure 6 This is a detailed schematic diagram of the grouting and locking structure of a foundation pit slope support device according to an embodiment of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Anchor bolt body; 2. Insertion end; 3. Grouting end; 4. Reinforcing component; 41. Grouting hole; 42. Insertion hole; 43. Insertion nail; 431. Nail head; 432. Nail tip; 433. Torsion part; 5. Locking component; 51. First locking element; 52. Second locking element; 6. Auxiliary nail; 7. Stud pin. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0043] This application discloses a foundation pit slope support device.

[0044] It should be noted that, in the description of this invention, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] It should also be noted that the methods for anchor grouting in foundation pit support typically involve the following steps: borehole pretreatment, anchor installation, ensuring the horizontal and verticality of the anchor, grout injection, grout material curing, testing, and quality control. For those skilled in the art, pretreatment of the foundation pit slope with pile holes is well-known knowledge in the practical application of anchor grouting for foundation pit slope support. Furthermore, the method of grouting into the anchor is also a relatively conventional approach and should not be construed as a limitation of this invention.

[0046] Reference Figure 1 A foundation pit slope support device includes an anchor bolt body 1, a reinforcement component 4, and a locking component 5 (see reference). Figure 4 When supporting the slope of a foundation pit, the anchor body 1 is first inserted into a pre-drilled hole. Then, grout is injected into the anchor body 1. After the concrete hardens, the connection between the foundation pit slope and the anchor body 1 is achieved. During the grouting process, the reinforcing component 4 on the anchor body 1 reinforces the connection between the anchor body 1, the foundation pit slope soil, and the concrete grout. Simultaneously, the locking component 5 (see...) Figure 4The device can lock the reinforcement component 4, thereby making the entire anchor body 1 more stable in supporting the slope of the foundation pit. To a certain extent, this application has solved the problem that the anchor may shift or loosen in the related technology, thereby reducing the stability of the support and causing the slope to become unstable or the bearing capacity of the anchor to decrease.

[0047] Reference Figure 2 and Figure 3 In this embodiment of the application, one end of the anchor body 1 is the insertion end 2, and the other end of the anchor body 1 is the grouting end 3. The insertion end 2 is inserted into the soil of the foundation pit slope, and the grouting end 3 is used to inject grout into the anchor body 1. It should be noted that the insertion end 2 is inserted into the soil of the bottom wall of the pre-treated hole. That is to say, the entire anchor body 1 is located in the pre-treated hole.

[0048] The reinforcement component 4 includes a grouting hole 41, a plug hole 42, and a plug nail 43. Both the grouting hole 41 and the plug hole 42 are opened on the anchor body 1. The grouting hole 41 is used for the grout in the anchor body 1 to flow into the soil of the foundation pit slope. The plug nail 43 is rotatably connected to the inner wall of the anchor body 1. The plug nail 43 is slidably inserted into the plug hole 42. The plug nail 43 is used to enhance the stability of the foundation pit slope soil.

[0049] In this embodiment, the grouting hole 41 is a circular hole. In other embodiments, making the grouting hole 41 into other shapes is also a preferred embodiment of this application. In this embodiment, the insertion hole 42 is rectangular. In other embodiments, making the insertion hole 42 into other shapes is also a preferred embodiment of this application. However, regardless of the shape of the grouting hole 41 and the insertion hole 42, they should be modified to match the insertion pin 43.

[0050] Reference Figure 4In this embodiment, the insertion nail 43 includes a nail head 431, a nail tip 432, and a torsion portion 433. The torsion portion 433 is disposed on the inner wall of the anchor rod body 1. The nail head 431 is rotatably connected to the torsion portion 433. The nail tip 432 is fixedly connected to the end of the insertion nail 43 away from the nail head 431. The nail head 431 is pushed by the concrete grout to rotate around the torsion portion 433. The nail tip 432 passes through the insertion hole 42 and contacts the concrete grout outside the anchor rod body 1. In other embodiments, configuring the torsion portion 433 in other forms to rotatably connect with the inner wall of the anchor rod body 1 is also an embodiment that can be implemented in this application. Meanwhile, the accompanying drawings of this embodiment are mainly to show that the torsion portion 433 can rotate. Specifically, the torsion part 433 is also provided with a torsion spring that cooperates with the nail head 431, so that when the anchor body 1 is not grouted, the nail head 431 is in a state of sealing the anchor body 1, that is, the insertion nail 43 is located inside the anchor body 1. Only when pushed by the grout will the nail head 431 be torsion, and then adhere to the grout to reinforce the anchor body 1.

[0051] The insertion pin 43 is configured as a combination of a pin head 431, a pin tip 432, and a torsion part 433, so that when the insertion pin 43 is pushed by concrete slurry, it can be effectively rotated, which ensures that the insertion pin 43 can be smoothly inserted into the insertion hole 42.

[0052] Reference Figure 3 Multiple grouting holes 41 and multiple insertion holes 42 are provided, with each grouting hole 41 corresponding to one of the insertion holes 42. The grouting holes 41 and insertion holes 42 are staggered along the length of the anchor body 1. In this embodiment, five grouting holes 41 and five insertion holes 42 are provided on one anchor body 1. In other embodiments, setting the number of grouting holes 41 and insertion holes 42 to one, two, three, four, six, or other numbers are preferred embodiments of this application, depending on the length of the anchor body 1.

[0053] Multiple grouting holes 41 and insertion holes 42 are provided, and the multiple grouting holes 41 and multiple insertion holes 42 are staggered along the length direction of the anchor body 1. Correspondingly, multiple insertion nails 43 are also provided, so that the anchor body 1 can be effectively reinforced along the entire length direction, thereby improving the stability of the foundation pit slope support device of this application.

[0054] The diameter of the plug pin 43 is smaller than the diameter of the plug hole 42.

[0055] Setting the diameter of the insertion pin 43 to be smaller than that of the insertion hole 42 makes it easier to insert the insertion pin 43.

[0056] In this embodiment, the inner wall of the anchor body 1 is rectangular. In other embodiments, other shapes for the inner wall of the anchor body 1 are also feasible embodiments. It is particularly important to emphasize that the shape of the inner wall in this application refers to the shape of the outline as seen from the top view of the anchor body 1.

[0057] The inner wall of the anchor body 1 is made rectangular, which facilitates the placement of the insertion pin 43 and the insertion hole 42. This is mainly to allow for a better placement of the torsion part 433, thereby facilitating the rotation of the insertion pin 43.

[0058] Reference Figure 4 The insertion pin 43 is also provided with an auxiliary pin 6. There are multiple auxiliary pins 6, which are evenly distributed along the outer side wall of the insertion pin 43.

[0059] The addition of multiple auxiliary nails 6 effectively enhances the reinforcement effect of the reinforcement component 4 on the anchor body 1.

[0060] Reference Figure 5 and Figure 6 The locking component 5 is used to lock the insertion pin 43 onto the anchor body 1. In this embodiment, the locking component 5 includes a first locking member 51 and a second locking member 52. The first locking member 51 is fixedly connected to the pin head 431 of the insertion pin 43, and the second locking member 52 is fixedly inserted into the wall of the insertion hole 42. The first locking member 51 and the second locking member 52 are magnetically connected. In other embodiments, the first locking component 5 and the second locking component 5 can also be made in a plug-in form, which is also a preferred embodiment of this application.

[0061] The locking component 5 is configured as a combination of the first locking member 51 and the second locking member 52, and the first locking component 5 and the second locking component 5 are magnetically connected, so that the locking component 5 can quickly and conveniently lock the plug 43 onto the anchor body 1.

[0062] A sealing sleeve is fixedly connected to the first locking member 51, and a puncturing needle 7 is fixedly connected to the inner side wall of the anchor rod body 1. The sealing sleeve contains sealant, and the puncturing needle 7 can puncture the sealing sleeve.

[0063] It should be noted that since the sealing sleeve is only used to hold the sealant and is attached to the first locking member 51, for ease of explanation, the sealing sleeve is not shown in detail in the accompanying drawings of this application embodiment.

[0064] The sealing sleeve and the puncture needle 7 are designed so that after the first locking member 51 and the second locking member 52 are locked, the sealant can quickly seep out and seal immediately, effectively reducing the possibility of the first locking member 51 and the second locking member 52 separating, and further improving the stability of the locking assembly 5.

[0065] In this embodiment of the application, multiple puncture needles 7 are provided, and the multiple puncture needles 7 are evenly arranged along the periphery of the second locking member 52.

[0066] Multiple puncture needles 7 are provided so that the sealing sleeve can be broken quickly, and the sealant inside the sealing sleeve can be quickly released to seal the first locking member 51 and the second locking member 52.

[0067] In this embodiment, the sealant contained within the sealing sleeve is a silicone sealant. In other embodiments, using other sealing liquids as the sealant is also a preferred embodiment of this application.

[0068] The silicone sealant can effectively and quickly lock the first locking member 51 and the second locking member 52 together, effectively reducing the impact of concrete grout on the locking effect of the locking assembly 5.

[0069] The implementation principle of the foundation pit slope support device in this application embodiment is as follows: the foundation pit slope support device is set as a combination of anchor body 1, reinforcement component 4 and locking component 5, so that when the slope soil needs to be reinforced, the workers only need to insert the plug end 2 of the anchor body 1 into the pre-drilled foundation pit slope hole, and then grout is injected into the anchor body 1 through the grouting hole. During the grouting process, the grouting hole 41 of the reinforcement grouting allows the grout in the anchor body 1 to flow into the hole. The plug 43 is squeezed by the grout and pushed into the plug hole 42. The plug 43 pushed into the plug hole 42 will bond with the concrete grout that enters the foundation pit slope hole from the grouting hole 41. At the same time, under the action of the locking component 5, the plug 43 can be stably locked on the anchor body 1. This application has a certain degree of effect in solving the problem that the anchor may be displaced or loosened in the related technology, thereby reducing the stability of the support and causing slope instability or a decrease in the bearing capacity of the anchor.

[0070] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A foundation pit slope protection device, characterized in that, include: Anchor body (1), one end of the anchor body (1) is a plug-in end (2), the other end of the anchor body (1) is a grouting end (3), the plug-in end (2) is inserted into the soil of the foundation pit slope, and the grouting end (3) is used to inject grout into the anchor body (1); The reinforcement component (4) includes a grouting hole (41), a insertion hole (42), and a insertion nail (43). The grouting hole (41) and the insertion hole (42) are both opened on the anchor body (1). The grouting hole (41) is used for the grout in the anchor body (1) to flow into the soil of the foundation pit slope. The insertion nail (43) is rotatably connected to the inner wall of the anchor body (1). The insertion nail (43) slides through the insertion hole (42). The insertion nail (43) is used to strengthen the stability of the foundation pit slope soil. 3) Includes a nail head (431), a nail tip (432), and a torsion part (433). The torsion part (433) is disposed on the inner sidewall of the anchor bolt body (1). The nail head (431) is rotatably connected to the torsion part (433). The nail tip (432) is fixedly connected to the end of the insertion nail (43) away from the nail head (431). The nail head (431) is pushed by the concrete slurry to rotate around the torsion part (433). The nail tip (432) passes through the insertion hole (42) and contacts the concrete slurry outside the anchor bolt body (1); and Locking component (5) is used to lock the plug (43) onto the anchor body (1). The locking component (5) includes a first locking member (51) and a second locking member (52). The first locking member (51) is fixedly connected to the nail head (431) of the plug (43), and the second locking member (52) is fixedly inserted through the hole wall of the plug hole (42). The first locking member (51) and the second locking member (52) are magnetically connected.

2. The foundation pit slope protection device according to claim 1, characterized in that, The grouting holes (41) are provided in multiple ways, and the insertion holes (42) are provided in multiple ways. The multiple grouting holes (41) and the multiple insertion holes (42) correspond one-to-one. The multiple grouting holes (41) and the multiple insertion holes (42) are staggered along the length direction of the anchor body (1).

3. The foundation pit slope protection device according to claim 1, characterized in that, The diameter of the plug pin (43) is smaller than the diameter of the plug hole (42).

4. The foundation pit slope protection device according to claim 1, characterized in that, The inner wall of the anchor body (1) is rectangular.

5. The foundation pit slope protection device according to claim 1, characterized in that, The insertion pin (43) is also provided with an auxiliary pin (6), and there are multiple auxiliary pins (6), which are evenly distributed along the outer side wall of the insertion pin (43).

6. The foundation pit slope protection device according to claim 1, characterized in that, A sealing sleeve is fixedly connected to the first locking member (51), and a puncture needle (7) is fixedly connected to the inner side wall of the anchor body (1). The sealing sleeve contains sealant, and the puncture needle (7) can puncture the sealing sleeve.

7. A foundation pit slope protection device according to claim 6, characterized in that, Multiple needles (7) are provided, and the multiple needles (7) are evenly arranged along the periphery of the second locking member (52).

8. A foundation pit slope protection device according to claim 6, characterized in that, The sealing sleeve contains a sealant.

Images