Fixing and burying device for soil pressure gauge

Abstract

The utility model discloses a soil pressure gauge fixing and burying device, which relates to the field of soil pressure gauges, is used for burying soil pressure gauges and comprises a supporting tray, a fixing ring, a connecting piece and a fixing component. A groove is formed in the supporting tray, and the soil pressure gauge is placed in the groove; a plurality of connecting holes are correspondingly formed in the supporting tray and the fixing ring, and the supporting tray is connected with the fixing ring by penetrating the connecting pieces through the corresponding connecting holes; the multiple fixing components are symmetrically arranged on the fixing ring, and fixing holes are formed in the fixing components. According to the utility model, the soil pressure gauge can be stably fixed in various soil layers by drilling holes and applying expansion screws, the applicability is strong, the installation is firm, the device also has the characteristics of simple structure and convenient use, the installation and the disassembly are convenient, and the monitoring efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the field of earth pressure gauges, in particular to an earth pressure gauge fixing and embedding device. Background Art

[0002] Confining pressure monitoring is an important monitoring content in underground cavern construction. Generally, surrounding rock pressure monitoring is carried out by burying earth pressure gauges between the surrounding rock and the initial support. The earth pressure gauge is heavy and difficult to bury on the top and side walls of the cavern. When buried on site, it is usually fixed on a steel mesh or steel arch frame. This will not ensure that the pressure surface of the earth pressure gauge is in full contact with the surrounding rock, resulting in inaccurate monitoring results. At the same time, in most cases, there are no protective measures at the interface of the earth pressure gauge wire, making it vulnerable to damage during subsequent spraying and mixing construction. Therefore, it is very necessary to design a fixed burying device for the earth pressure gauge in the underground cavern so that it can fully contact with the surrounding rock and stabilize the test data during the excavation and support construction of the cavern.

[0003] The Chinese patent application with application number CN203657961U discloses a soil pressure gauge fixing device, which designs a plurality of rotating brackets connected together by pins, each rotating bracket is connected by a clamping part, and together serves as a supporting structure of the soil pressure gauge, and at the same time, the soil pressure gauge is fixed in the surrounding rock by arranging a plurality of fixed foot posts under the bracket bottom plate. The fixed foot posts used in the device are difficult to install in relatively hard rock layers, and are not suitable for situations where the surrounding rock surface is uneven. At the same time, the device does not consider the protection of the earth pressure gauge wire interface, and has the disadvantages of few applicable soil layers and insufficient protection of the earth pressure gauge. Utility Model Content

[0004] The problem to be solved by the utility model is to overcome the shortcomings of the existing earth pressure gauge that cannot be fully contacted with the surrounding rock and is easily damaged by construction, and to provide an earth pressure gauge fixed embedding device, which is intended to enable it to stably obtain the real earth pressure of the surrounding rock during the construction of underground caverns. The device has the characteristics of simple structure, firm installation, strong applicability, etc.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A device for fixing and burying an earth pressure gauge, used for burying the earth pressure gauge, comprises a support tray, a fixing ring, a connecting piece and a fixing member; a groove is provided inside the support tray, and the earth pressure gauge is placed in the groove; a plurality of connecting holes are correspondingly provided on the support tray and the fixing ring, and the support tray is connected to the fixing ring by passing the connecting piece through the corresponding connecting holes; a plurality of fixing members are symmetrically arranged on the fixing ring, and fixing holes are provided on the fixing members.

[0007] The utility model designs a device for fixing and burying an earth pressure gauge, which comprises a connection combination of a support tray, a fixing ring, a connecting piece and a fixing member, etc. The earth pressure gauge can be firmly fixed in various soil layers by drilling holes and applying expansion screws, and has strong applicability and firm installation.

[0008] As a further preferred embodiment of the present invention, a wire hole is provided on the support tray, and the wire of the earth pressure gauge passes through the wire hole. The present invention is provided with a wire hole, and the support tray wraps the earth pressure gauge inside, and also has a protective effect on the interface of the earth pressure gauge wire, thereby preventing the earth pressure gauge from being damaged in the subsequent chamber spraying and mixing, and having strong safety.

[0009] As a further preferred embodiment of the present invention, the connecting member is a bolt, and the connecting hole is provided with a thread, and the support tray and the fixing ring are connected by the bolt. The bolt has high strength and can withstand large tensile and shear forces. Compared with welding and riveting, the connection and disassembly of the bolt is more convenient, does not require special equipment and technology, and will not cause damage to the object.

[0010] As a further preferred embodiment of the present invention, an expansion screw is further included, and the expansion screw passes through the fixing hole to fix the fixing ring on the surrounding rock surface. The expansion screw can generate a strong expansion force when tightened, tightly grasping the wall, thereby providing extremely high fixing force.

[0011] As a further preferred embodiment of the present invention, the fixing ring is a hollow cylindrical structure, and there are four fixing members which are symmetrically and evenly welded around the fixing ring.

[0012] As a further preferred embodiment of the present invention, there are four connecting holes on the support tray and the fixing ring, which are symmetrically and evenly arranged and correspond to each other one by one.

[0013] As a further preferred embodiment of the present invention, the fixing member is a square block structure, a fixing hole is provided in the middle, and the end portion is welded to the fixing ring.

[0014] There are four fixing members and four connecting holes, which are evenly and symmetrically arranged on all sides, so as to ensure uniform force and make the connection more stable.

[0015] The utility model has the following beneficial effects:

[0016] (1) The utility model designs a device for fixing and burying an earth pressure gauge, which includes a connection combination of a support tray, a fixing ring, a connecting piece and a fixing member. The earth pressure gauge can be firmly fixed in various soil layers by drilling holes and applying expansion screws. The device has strong applicability and is firmly installed.

[0017] (2) The utility model is provided with a wire hole, and the support tray wraps the earth pressure gauge inside, and also has a protective effect on the earth pressure gauge wire interface, thereby preventing the earth pressure gauge from being damaged during the subsequent chamber spraying and mixing, and having strong safety.

[0018] (3) The combined device also has the characteristics of simple structure and convenient use, which is easy to install and disassemble, further improving the monitoring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the fixed buried device of the earth pressure gauge;

[0020] Figure 2 A schematic diagram of a support tray;

[0021] Figure 3 Schematic diagram of the fixing ring.

[0022] The components include: 1. Support tray; 2. Groove; 21. Wire hole; 3. Connecting hole; 4. Fixing ring; 5. Fixing member; 51. Fixing hole. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0024] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the components, and therefore cannot be understood as a limitation on the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0025] like Figure 1-3 As shown, a device for fixing and burying an earth pressure gauge is used for burying the earth pressure gauge, comprising a support tray 1, a fixing ring 4, a connecting piece and a fixing member 5; a groove 2 is provided inside the support tray 1, and the earth pressure gauge is placed in the groove 2, and the size of the groove 2 is consistent with the size of the earth pressure gauge, so that the earth pressure gauge can be just placed therein; a plurality of connecting holes 3 are correspondingly provided on the support tray 1 and the fixing ring 4, and the support tray 1 is connected to the fixing ring 4 by passing the connecting piece through the corresponding connecting holes 3; a plurality of fixing members 5 are symmetrically arranged on the fixing ring 4, and a fixing hole 51 is provided on the fixing member 5.

[0026] The utility model designs a device for fixing and burying an earth pressure gauge, which comprises a connection combination of a support tray 1, a fixing ring 4, a connecting piece and a fixing member 5, etc. The earth pressure gauge can be firmly fixed in various soil layers by drilling holes and applying expansion screws, and has strong applicability and firm installation.

[0027] The support tray 1 is provided with a wire hole 21, and the wire of the soil pressure gauge passes through the wire hole 21. The utility model is provided with a wire hole 21, and the support tray 1 wraps the soil pressure gauge inside, and also has a protective effect on the interface of the soil pressure gauge wire, thereby preventing the soil pressure gauge from being damaged in the subsequent chamber spraying and mixing, and having strong safety.

[0028] The connecting member is a bolt, and the connecting hole 3 is provided with a thread inside, and the supporting tray 1 and the fixing ring 4 are connected by the bolt. The bolt has high strength and can withstand large tensile and shear forces. Compared with welding and riveting, the connection and disassembly of the bolt is more convenient, does not require special equipment and technology, and will not cause damage to the object.

[0029] It also includes expansion screws, which pass through the fixing holes 51 to fix the fixing ring 4 on the surrounding rock surface. The expansion screws can generate a strong expansion force when tightened, tightly grasp the wall, and thus provide extremely high fixing force. After the fixing ring 4 is buried, before the support tray 1 and the earth pressure gauge are connected to it, liquid silicone or other materials can be used to fill the gap between the cavity in the ring and the surrounding rock, and then the support tray 1 and the earth pressure gauge are connected to the fixing ring 4 by bolts, so that the pressure surface of the earth pressure gauge is in full and close contact with the surrounding rock, so as to obtain accurate measurement results.

[0030] The fixing ring 4 is a hollow cylindrical structure, and the fixing members 5 are four in number, which are symmetrically and evenly welded around the fixing ring 4. There are four connecting holes 3 on the support tray 1 and the fixing ring 4, which are symmetrically and evenly arranged and correspond to each other. The fixing member 5 is a square block structure, with a fixing hole 51 in the middle, and the end is welded to the fixing ring 4. There are four fixing members 5 and four connecting holes 3, which are evenly and symmetrically arranged around, ensuring uniform force and making the connection more stable.

[0031] The working principle of the utility model is:

[0032] First, the fixing ring 4 is fixed on the surrounding rock surface by passing the expansion screw through the fixing hole 51. Then the earth pressure gauge is placed in the groove 2, and the wire of the earth pressure gauge passes through the wire hole 21 to protect the wire interface. Finally, the support tray 1 and the fixing ring 4 are connected by passing the bolt through the connection hole 3, so that the earth pressure gauge is fixed on the surrounding rock surface, and the pressure surface is fully in contact with the surrounding rock surface, so that the earth pressure gauge is firmly fixed in various soil layers, with strong applicability and firm installation.

[0033] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A soil pressure gauge fixed embedding device, used for embedding a soil pressure gauge, characterized in that: The invention comprises a support tray (1), a fixing ring (4), a connecting piece and a fixing member (5); a groove (2) is provided inside the support tray (1), and the soil pressure gauge is placed in the groove (2); a plurality of connecting holes (3) are correspondingly provided on the support tray (1) and the fixing ring (4), and the support tray (1) is connected to the fixing ring (4) by passing the connecting piece through the corresponding connecting holes (3); a plurality of fixing members (5) are symmetrically arranged on the fixing ring (4), and a fixing hole (51) is provided on the fixing member (5).

2. The soil pressure gauge fixing and embedding device according to claim 1 is characterized in that: The support tray (1) is provided with a wire hole (21), and the wire of the soil pressure gauge passes through the wire hole (21).

3. The soil pressure gauge fixing and embedding device according to claim 1 is characterized in that: The connecting piece is a bolt, and a thread is provided inside the connecting hole (3), and the supporting tray (1) and the fixing ring (4) are connected by the bolt.

4. The soil pressure gauge fixing and embedding device according to claim 1 is characterized in that: It also includes an expansion screw, which passes through the fixing hole (51) to fix the fixing ring (4) on the surrounding rock surface.

5. The device for fixing and embedding an earth pressure gauge according to claim 1, characterized in that: The fixing ring (4) is a hollow cylindrical structure, and the fixing components (5) are four in number and are symmetrically and evenly welded around the fixing ring (4).

6. The device for fixing and embedding an earth pressure gauge according to claim 1, characterized in that: There are four connection holes (3) on the support tray (1) and the fixing ring (4), which are symmetrically and evenly arranged and correspond one to one.

7. The earth pressure gauge fixing and embedding device according to claim 1 is characterized in that: The fixing member (5) is a square block structure, with a fixing hole (51) opened in the middle and the end portion welded to the fixing ring (4).

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