CN215721738U

CN215721738U - Soil pressure cell fixing device

Info

Publication number: CN215721738U
Application number: CN202120720800.6U
Authority: CN
Inventors: 李骞; 周建芬; 高思源; 吴红梅; 毛前; 曹明杰
Original assignee: Lanxi Sanjiang Water Conservancy Project Management And Protection Institute
Current assignee: Lanxi Sanjiang Water Conservancy Project Management And Protection Institute
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2022-02-01
Anticipated expiration: 2031-04-06

Abstract

The utility model discloses a fixing device for a soil pressure cell, which relates to the technical field of soil pressure cell installation, and mainly structurally comprises a bearing part and a fixing part; the soil pressure cell is arranged on the bottom surface of the bearing part, the fixing parts are arranged at two ends of the bearing part, the soil pressure cell is fixed on the bearing part, and the bearing part is made of channel steel, so that the soil pressure cell can be ensured to be in parallel contact with the ground, has enough rigidity to support the soil pressure cell, and can effectively protect a lead wire when the lead wire of the soil pressure cell is covered at the opening end of the channel steel, thereby avoiding the lead wire from being damaged by external force; the fixed part is made of deformed steel bar, so that the cost is low, and the fixed part can be well fixed with a foundation, so that the bearing part is firmly fixed on the foundation, and the influence of the change of the bearing part on the measurement reliability of the soil pressure cell is avoided.

Description

Soil pressure cell fixing device

Technical Field

The utility model relates to the technical field of soil pressure cell installation, in particular to a soil pressure cell fixing device.

Background

The soil pressure box is also called a soil pressure gauge, is a sensor for measuring soil pressure and is mainly used for measuring the pressure change of soil bodies at buried points in soft soil and filling soil; and the contact pressure of the soil body on the surfaces of a retaining wall, an anti-slide pile and the like can also be measured. The method is mainly used in the application fields of roadbeds, foundation pits, retaining walls, dams, tunnels, mines and the like. The earth pressure cell is generally divided into a vibrating wire sensor and a resistance-type sensor, wherein the resistance-type earth pressure cell can realize real-time data acquisition and is widely applied to continuous and synchronous data acquisition.

The earth pressure cell is generally buried on the surface of reinforced concrete, and the stress surface of the earth pressure cell is in contact with the earth layer to measure the stress change of the earth layer. In the concrete construction process of engineering, the burying of the soil pressure box can be involved in the reinforced concrete prefabricated part and the cast-in-place structure of reinforced concrete. In order to detect and master the soil layer stress change condition in the construction process and detect the stress state of the buried reinforced concrete prefabricated part and the cast-in-place structure, an effective method is to install a soil pressure box on the surface of the buried reinforced concrete prefabricated part and the cast-in-place structure to obtain the soil layer pressure so as to guide further construction or design of the prefabricated part and the like.

Because the reinforced concrete prefabricated part and the soil pressure box move relatively, the soil pressure box can detect the soil layer pressure and can move in the soil layer along with the reinforced concrete prefabricated part and other moving bodies without being damaged by collision, so that the stress surface of the soil pressure box is required to be strictly flush with the surface of the moving body.

The existing horizontal soil pressure cell fixing device is complex in manufacturing method, high in cost and complex in installation, and the fixed surface of the soil pressure cell deforms along with the soil body, so that the test value is inaccurate, and even the fixing device cannot effectively play a role.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a fixing device for a soil pressure cell, which prevents the soil pressure cell from being changed, thereby improving the measurement reliability of the soil pressure cell.

In order to achieve the purpose, the utility model provides the following scheme:

the utility model provides a soil pressure cell fixing device, which comprises a bearing part and a fixing part, wherein the bearing part is arranged on the bearing part; the soil pressure cell is arranged on the bottom surface of the bearing part, and the fixing parts are arranged at two ends of the bearing part.

Optionally, the bearing part is made of channel steel, and the opening end of the bearing part is arranged upwards.

Optionally, a first through hole is formed in the bottom of the bearing part, and a lead of the soil pressure cell penetrates through the first through hole.

Optionally, the soil pressure cell further comprises a threading pipe, a lead of the soil pressure cell passes through the first through hole and then enters the threading pipe,

optionally, the soil pressure cell is connected to the bearing part by gluing.

Optionally, two ends of the bearing part are respectively provided with a second through hole, and the lower part of the fixing part penetrates through the second through hole and then extends into the foundation.

Optionally, the fixing portion includes a horizontal structure and a vertical structure, the length of the horizontal structure is not greater than the width of the bearing portion, and the top of the vertical structure is fixedly connected with the middle of the horizontal structure.

Optionally, the vertical structure is deformed steel bar.

Optionally, the width of the bearing part is greater than or equal to the diameter of the soil pressure cell.

Optionally, a protective cover is further disposed on the bearing portion.

Compared with the prior art, the utility model has the following technical effects:

the utility model relates to a soil pressure cell fixing device, which mainly comprises a bearing part and a fixing part; the soil pressure cell is fixed on the bearing part, the bearing part is made of channel steel, so that the parallel contact between the soil pressure cell and the ground can be guaranteed, the soil pressure cell can be supported by enough rigidity, a lead of the soil pressure cell is covered at the opening end of the channel steel, the lead can be effectively protected, and the lead is prevented from being damaged by external force; the fixed part is made of deformed steel bar, so that the cost is low, and the fixed part can be well fixed with a foundation, so that the bearing part is firmly fixed on the foundation, and the influence of the change of the bearing part on the measurement reliability of the soil pressure cell is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of a soil pressure cell fixing device according to the present invention;

fig. 2 is a schematic structural view of a fixing portion of the earth pressure cell fixing device according to the present invention.

Description of reference numerals: 1. a bearing part; 2. a lead wire; 3. a soil pressure cell; 4. a fixed part; 5. a foundation; 41. a horizontal structure; 42. a vertical structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the present embodiment provides a soil pressure cell fixing device, which includes a bearing part 1 and a fixing part 4; the soil pressure cell 3 is disposed on the bottom surface of the bearing part 1, and the fixing parts 4 are disposed at both ends of the bearing part 1.

In this embodiment, the carrying portion 1 is made of channel steel, and the opening end of the carrying portion 1 is disposed upward. The bottom of channel-section steel is provided with first through-hole, lead wire 2 of soil pressure cell 3 passes first through-hole. The length of channel-section steel is confirmed according to actual need, can set up a plurality of first through-holes on the channel-section steel, and the interval between the adjacent first through-hole can be equidistant, also can set for according to actual conditions. The diameter of first through-hole is so that lead wire 2 can pass suitably, and the diameter of first through-hole is not too big, after lead wire 2 passed first through-hole, can adopt glue to bond fixedly to prevent that the edge of first through-hole from cutting lead wire 2, causing lead wire 2 to split.

The soil pressure cell 3 is connected with the bearing part 1 through glue bonding. Can polish the bottom surface of channel-section steel with abrasive paper before the bonding to deburring and rust guarantee that soil pressure cell 3 has good fixedly with the channel-section steel.

Two ends of the bearing part 1 are respectively provided with a second through hole, and the lower part of the fixing part 4 penetrates through the second through holes and then extends into the foundation 5. The fixing part 4 comprises a horizontal structure 41 and a vertical structure 42, the length of the horizontal structure 41 is not more than the width of the bearing part 1, and the top of the vertical structure 42 is fixedly connected with the middle part of the horizontal structure 41. The vertical structure 42 is a deformed steel bar. The diameter of the second through hole is slightly larger than that of the deformed steel bar, so that the deformed steel bar can pass through the second through hole, and the radial movement of the bearing part 1 is prevented. The length of the horizontal structure 41 needs to be smaller than the inner width of the channel, so that the horizontal structure 41 can be tightly attached to the inner bottom surface of the channel. The fixing portion 4 may be driven or screwed into the foundation 5 by a tool, or a pit may be dug in advance on the foundation 5 at both end portions of the carrier portion 1, the carrier portion 1 may be placed on the bottom surface, the fixing portion 4 may be inserted into the second through hole, and then the pit may be cast with concrete to complete the fixing of the fixing portion 4.

The width of the bearing part 1 is larger than or equal to the diameter of the soil pressure box 3. Thereby can carry out comprehensive support to the top surface of soil pressure cell 3, guarantee that soil pressure cell 3 atress is even.

The soil pressure cell fixing device in this embodiment can also be used to detect the soil pressure of the certain degree of depth department below the ground, and is concrete, excavates the detection hole in detection ground, utilizes the concrete to accomplish the fixed of bearing part 1 and fixed part 4, buckles the protective cover on bearing part 1 to the connecting portion of protection soil pressure cell and lead wire, in drawing the lead wire of soil pressure cell from protective cover one end and penetrating the threading pipe, draw forth ground by the threading pipe. The protective cover can be channel-section steel or angle steel, its size can cover the lead wire of soil pressure cell can, also can be the channel-section steel or angle steel that outside width and the interior width of the used channel-section steel of bearing part are the same to carry on spacingly through the interior width of the used channel-section steel of bearing part to the protective cover.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.

Claims

1. The soil pressure cell fixing device is characterized by comprising a bearing part and a fixing part; the soil pressure box is arranged on the bottom surface of the bearing part, and the fixing parts are arranged at two ends of the bearing part;

the bearing part is made of channel steel, and the opening end of the bearing part is arranged upwards;

a first through hole is formed in the bottom of the bearing part, and a lead of the soil pressure cell penetrates through the first through hole;

the soil pressure cell is characterized by further comprising a threading pipe, and a lead of the soil pressure cell penetrates through the first through hole and then enters the threading pipe.

2. The earth pressure cell securing device according to claim 1, wherein said earth pressure cell is adhesively attached to said load-bearing portion by glue.

3. The earth pressure cell fixing device according to claim 1, wherein a second through hole is formed at each of both ends of the bearing portion, and a lower portion of the fixing portion extends into the ground after penetrating through the second through hole.

4. The earth pressure cell securing device according to claim 1, wherein the securing portion includes a horizontal structure and a vertical structure, the horizontal structure having a length not greater than the width of the load-bearing portion, the vertical structure having a top fixedly connected to a middle portion of the horizontal structure.

5. The earth pressure cell securing device according to claim 4, wherein the vertical structure is a screw steel.

6. The earth pressure cell securing device according to claim 1, wherein the width of the load-bearing portion is greater than or equal to the diameter of the earth pressure cell.

7. The earth pressure cell securing device according to claim 1, wherein a protective cover is further provided on the bearing portion.