Mounting and fixing device for increasing effective contact between surrounding rock and earth pressure cell

Abstract

The utility model discloses a mounting and fixing device for increasing effective contact between a surrounding rock and an earth pressure cell, which comprises an earth pressure cell, an elastic force transmission piece and a mounting and fixing assembly, one end of the elastic force transmission piece is arranged on the test surface of the earth pressure cell, and the other end of the elastic force transmission piece is used for abutting against the surrounding rock of which the stress is to be tested; one end of the installation fixing assembly is connected with the soil pressure box, and the other end of the installation fixing assembly is used for being fixedly connected with a steel bar frame or a steel bar net. When in use, the device can be effectively attached to the surface of the surrounding rock by utilizing the elastic deformation capability of the elastic force transmission part, and force transmission is performed through the elastic force transmission part, so that the lining pressure of the surrounding rock can be better and more completely transmitted to the stress surface of the soil pressure box, and the accuracy of monitoring data is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering monitoring and measuring equipment, in particular to an installation and fixing device for increasing the effective contact between surrounding rock and an earth pressure box. Background Art

[0002] In recent years, with the vigorous development of my country's transportation industry, railway tunnels, highway tunnels and subways have emerged in large numbers. However, due to the characteristics of tunnel engineering such as complex construction management, many unpredictable factors, high engineering risks, many hidden projects and harsh construction environment, there will be many problems in the process of tunnel construction. Therefore, monitoring and measurement is an important part of the tunnel construction process. By monitoring the corresponding mechanical characteristics of the surrounding rock and support structure at the construction site, it provides a corresponding basis for the tunnel construction, guides the on-site construction, ensures the safety of the tunnel construction process, and improves the quality and economy of the project. As a monitoring device that can effectively monitor the lining pressure of the tunnel surrounding rock, the earth pressure box can timely correct and modify the corresponding support structure parameters through the collection and analysis of the monitoring data to ensure the safety of the construction. During the tunnel construction process. The earth pressure box is mainly installed between the initial support and the secondary lining for surrounding rock measurement. During the burial process of the earth pressure box, it is generally fixed on the steel arch frame or steel mesh, and the force surface is required to be close to the surrounding rock. However, the existing earth pressure box often needs to be installed by other cumbersome methods such as welding, which is time-consuming and labor-intensive. In addition, due to the unevenness of the surrounding rock, the load-bearing surface of the earth pressure box cannot fit tightly with the surrounding rock, and can only contact part of the surrounding rock, which will result in the inability to accurately monitor the complete surrounding rock lining pressure. Therefore, in order to solve the above problems, it is necessary to improve the existing earth pressure box installation device and method, so that the lining pressure of the surrounding rock can be better and completely transmitted to the earth pressure box load-bearing surface, ensure the normal operation of the equipment, and improve the accuracy of the monitoring data. Utility Model Content

[0003] The utility model aims to provide an installation and fixing device for increasing the effective contact between surrounding rock and earth pressure box, which can effectively achieve close fit with the surrounding rock surface through the setting of elastic force transmission parts, and then use the elastic force transmission parts to transmit force, so that the lining pressure of the surrounding rock can be better and more completely transmitted to the force surface of the earth pressure box, thereby improving the accuracy of monitoring data.

[0004] The utility model is realized by the following technical solutions:

[0005] A mounting and fixing device for increasing the effective contact between surrounding rock and earth pressure box, comprising an earth pressure box, an elastic force transmission member and a mounting and fixing assembly, wherein one end of the elastic force transmission member is arranged on the test surface of the earth pressure box, and the other end of the elastic force transmission member is used to resist the surrounding rock to be tested for stress; one end of the mounting and fixing assembly is connected to the earth pressure box, and the other end of the mounting and fixing assembly is used to fix a steel frame or a steel mesh. In order to solve the above technical problems and achieve the corresponding technical effects, the utility model, when used, utilizes the elastic deformation capability of the elastic force transmission member, so that the device can effectively fit on the surface of the surrounding rock, and transmits force through the elastic force transmission member, so that the lining pressure of the surrounding rock can be better and more completely transmitted to the force-bearing surface of the earth pressure box, thereby improving the accuracy of the monitoring data.

[0006] Further technical solutions:

[0007] The elastic force transmission member is vertically arranged on the test surface of the earth pressure box, and the elastic force direction of the elastic force transmission member is perpendicular to the test surface of the earth pressure box.

[0008] Further: the elastic force transmission member is a plurality of springs, and the plurality of springs are evenly and equidistantly arranged on the test surface of the soil pressure box;

[0009] Furthermore: the length of each spring is consistent.

[0010] Further: the installation and fixing assembly includes an installation and fixing member and a connecting member, and the installation and fixing member is installed and fixed to the steel frame or steel mesh;

[0011] Further: one end of the connecting piece is connected to the installation fixture, and the other end of the connecting piece is connected to the earth pressure box.

[0012] Further: the installation fixture includes a fixture and a hanging member, the hanging member is hung on the steel frame or steel mesh, and the hanging member is arranged at the bottom of the fixture;

[0013] Further: the connecting member is vertically set up on the top of the fixing member.

[0014] Further: the hanging parts are provided as two matching ones, and the two hanging parts are slidably provided on the fixing part;

[0015] Furthermore: the distance between the two hanging parts is adjustable.

[0016] Further: a sliding groove is provided at the bottom of the fixing member, and a sliding member is arranged in the sliding groove, and the sliding member can slide along the sliding groove;

[0017] Further: the hanging member is fixed to the sliding member.

[0018] Further: the number of the sliding members is also two, and each of the sliding members is connected to one of the hanging members respectively;

[0019] Further: an elastic member is arranged between the two sliding members, and the elastic force direction of the elastic member is perpendicular to the sliding members.

[0020] Further: the connecting member includes a sliding rod a and a sliding rod b, the bottom end of the sliding rod a is connected to the mounting fixture, the top end of the sliding rod b is connected to the soil pressure box, and the sliding rod b is slidably inserted into the sliding rod a.

[0021] Further: it also includes a protective shell, the top of which is open, and the earth pressure box is arranged in the protective shell.

[0022] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0023] 1. The utility model provides an installation and fixing device for increasing the effective contact between surrounding rock and earth pressure box. When in use, the elastic force transmission member has the ability of elastic deformation, so that the device can effectively fit on the surface of the surrounding rock, and transmit force through the elastic force transmission member, so that the lining pressure of the surrounding rock can be better and more completely transmitted to the force surface of the earth pressure box, thereby improving the accuracy of monitoring data.

[0024] 2. The utility model provides an installation and fixing device for increasing the effective contact between the surrounding rock and the earth pressure box. The installation and fixing assembly uses a sliding member to adjust the distance between the two hanging members, and an elastic member is used to achieve tensioning, so that it can be applicable to different types of steel frames or steel meshes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is a schematic diagram of the structure of the installation and fixing components;

[0028] Figure 3 It is a schematic diagram of the structure of the installation fixings;

[0029] Figure 4 A schematic diagram of the connector structure.

[0030] Marks and corresponding parts names in the attached drawings:

[0031] 1-soil pressure box, 2-elastic force transmission member, 3-installation and fixing assembly, 4-protective shell, 31-installation and fixing member, 32-connecting member, 311-fixing member, 312-hanging member, 313-sliding member, 314-elastic member, 321-sliding rod a, 322-sliding rod b. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0033] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, in order to avoid confusing the present invention, well-known structures, circuits, materials or methods are not specifically described.

[0034] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] In the description of the present invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0036] Example:

[0037] like Figure 1 to Figure 4As shown, the utility model is a mounting and fixing device for increasing the effective contact between surrounding rock and earth pressure box, comprising an earth pressure box 1, an elastic force transmission member 2 and a mounting and fixing assembly 3, one end of the elastic force transmission member 2 is arranged on the test surface of the earth pressure box 1, and the other end of the elastic force transmission member 2 is used to resist the surrounding rock to be measured stress; one end of the mounting and fixing assembly 3 is connected to the earth pressure box 1, and the other end of the mounting and fixing assembly 3 is used to fix and connect a steel frame or a steel mesh. In this embodiment, the setting of the elastic force transmission member 2 can effectively transfer the lining pressure of the surrounding rock to the test surface of the earth pressure box 1, avoiding the problem that the earth pressure box 1 is difficult to effectively contact the surrounding rock when the surrounding rock is uneven, thereby improving the accuracy of the monitoring data. Specifically, the elastic force transmission member 2 is vertically arranged on the test surface of the earth pressure box 1, and the elastic force direction of the elastic force transmission member 2 is perpendicular to the test surface of the earth pressure box 1.

[0038] In this embodiment, the elastic force transmission member 2 is preferably a plurality of springs, and the plurality of springs are evenly and equidistantly arranged on the test surface of the soil pressure box 1; the length of each of the springs is consistent.

[0039] Furthermore, the installation and fixing assembly 3 includes an installation and fixing member 31 and a connecting member 32, wherein the installation and fixing member 31 is installed and fixed to a steel frame or a steel mesh; one end of the connecting member 32 is connected to the installation and fixing member 31, and the other end of the connecting member 32 is connected to the earth pressure box 1. Specifically, the installation and fixing member 31 includes a fixing member 311 and a hanging member 312, wherein the hanging member 312 is hung on a steel frame or a steel mesh, and the hanging member 312 is arranged at the bottom of the fixing member 311; the connecting member 32 is vertically set at the top of the fixing member 311. Preferably, the hanging member 312 is arranged as two matching hanging members 312, and the two hanging members 312 are slidably arranged on the fixing member 311; the distance between the two hanging members 312 is adjustable. A sliding groove is provided at the bottom of the fixing member 311, and a sliding member 313 is arranged in the sliding groove, and the sliding member 313 can slide along the sliding groove; the hanging member 312 is fixed to the sliding member 313. In this embodiment, the distance between the two hanging members 312 can be adjusted by using the sliding member 313 in the installation and fixing assembly 31, and the elastic member 313 is used to achieve tensioning, so that it can be applied to different types of steel bars or steel meshes. In order to achieve an effective hanging effect, the sliding members 313 are also provided in two, and each of the sliding members 313 is connected to one of the hanging members 312; an elastic member 314 is provided between the two sliding members 313, and the elastic force direction of the elastic member 314 is perpendicular to the sliding member 313.

[0040] The connecting member 32 includes a sliding rod a321 and a sliding rod b322, the bottom end of the sliding rod a321 is connected to the installation fixture 31, the top end of the sliding rod b322 is connected to the earth pressure box 1, and the sliding rod b322 is slidably inserted in the sliding rod a321. In this embodiment, the installation position of the earth pressure box 1 is adjusted by sliding the sliding rod b322 up and down in the sliding rod a321, and threaded holes are provided on the sliding rod a321 and the sliding rod b322. When the position is adjusted to the right position and the threaded holes on the sliding rod a321 and the sliding rod b322 overlap, bolts are used to fix them.

[0041] It also includes a protective shell 4, the top of which is open, and the earth pressure box 1 is disposed in the protective shell 4. In this embodiment, the provision of the protective shell 4 can effectively protect the earth pressure box 1.

[0042] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A mounting and fixing device for increasing the effective contact between surrounding rock and earth pressure box, characterized in that: It comprises an earth pressure box (1), an elastic force transmission member (2) and an installation and fixing assembly (3), wherein one end of the elastic force transmission member (2) is arranged on the test surface of the earth pressure box (1), and the other end of the elastic force transmission member (2) is used to resist the surrounding rock to be subjected to the measured stress; One end of the installation and fixing component (3) is connected to the earth pressure box (1), and the other end of the installation and fixing component (3) is used for fixing and connecting a steel bar frame or a steel bar mesh.

2. The installation and fixing device for increasing the effective contact between surrounding rock and earth pressure box according to claim 1, characterized in that: The elastic force transmission member (2) is vertically arranged on the test surface of the earth pressure box (1), and the elastic force direction of the elastic force transmission member (2) is perpendicular to the test surface of the earth pressure box (1).

3. The installation and fixing device for increasing the effective contact between surrounding rock and earth pressure box according to claim 2, characterized in that: The elastic force transmission member (2) is a plurality of springs, and the plurality of springs are evenly and equidistantly arranged on the test surface of the soil pressure box (1); The length of each of the springs is consistent.

4. The installation and fixing device for increasing the effective contact between surrounding rock and earth pressure box according to claim 1, characterized in that: The installation and fixing assembly (3) comprises an installation and fixing member (31) and a connecting member (32), wherein the installation and fixing member (31) is installed and fixed on a steel frame or a steel mesh; One end of the connecting piece (32) is connected to the installation fixing piece (31), and the other end of the connecting piece (32) is connected to the earth pressure box (1).

5. The installation and fixing device for increasing the effective contact between surrounding rock and earth pressure box according to claim 4, characterized in that: The installation fixture (31) comprises a fixture (311) and a hanging member (312), wherein the hanging member (312) is hung on a steel frame or a steel mesh, and the hanging member (312) is arranged at the bottom of the fixture (311); The connecting member (32) is vertically arranged on the top of the fixing member (311).

6. The installation and fixing device for increasing the effective contact between surrounding rock and earth pressure box according to claim 5, characterized in that: The hanging parts (312) are provided as two matching ones, and the two hanging parts (312) are slidably provided on the fixing part (311); The distance between the two hanging parts (312) is adjustable.

7. The installation and fixing device for increasing the effective contact between surrounding rock and earth pressure box according to claim 6, characterized in that: The fixing member (311) has a sliding groove at the bottom, and a sliding member (313) is arranged in the sliding groove, and the sliding member (313) can slide along the sliding groove; The hanging member (312) is fixed to the sliding member (313).

8. The installation and fixing device for increasing the effective contact between surrounding rock and earth pressure box according to claim 7, characterized in that: The sliding members (313) are also provided in two numbers, and each of the sliding members (313) is respectively connected to one of the hanging members (312); An elastic member (314) is arranged between the two sliding members (313), and the elastic force direction of the elastic member (314) is perpendicular to the sliding member (313).

9. The installation and fixing device for increasing the effective contact between surrounding rock and earth pressure box according to claim 4, characterized in that: The connecting member (32) comprises a sliding rod a (321) and a sliding rod b (322), wherein the bottom end of the sliding rod a (321) is connected to the mounting fixture (31), the top end of the sliding rod b (322) is connected to the earth pressure box (1), and the sliding rod b (322) is slidably inserted into the sliding rod a (321).

10. The installation and fixing device for increasing the effective contact between surrounding rock and earth pressure box according to claim 1, characterized in that: It also comprises a protective shell (4), the top of which is open, and the earth pressure box (1) is arranged inside the protective shell (4).

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