CN217781973U

CN217781973U - Vertical soil pressure monitoring device strictly guaranteed by levelness

Info

Publication number: CN217781973U
Application number: CN202222177805.6U
Authority: CN
Inventors: 江建洪; 史培新; 贾鹏蛟; 彭凯西; 聂宏伟
Original assignee: Suzhou University
Current assignee: Suzhou University
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-11-11
Anticipated expiration: 2032-08-18

Abstract

The utility model discloses a vertical soil pressure monitoring device with strictly guaranteed levelness, which comprises a steel pipe, a hoop, channel steel and a soil pressure box; the soil pressure boxes are in a group and are respectively and horizontally arranged on the corresponding channel steel; the channel steels are respectively arranged at different heights of the steel pipe through corresponding anchor ears; the soil pressure box is horizontally arranged on the steel pipe through the channel steel and the hoop and is embedded into the soil body along with the steel pipe. The side surfaces of the steel pipes are provided with a group of notches for mounting channel steel at different heights; the channel steel is clamped in the corresponding notch, and the two sides of the channel steel are fixed through the hoops sleeved on the steel pipes. The monitoring device is closely connected with the soil pressure cell through bolts and channel steel, and is fixed on the steel pipe through the anchor ear, so that the levelness of the soil pressure cell is guaranteed. The hoop is used for connecting the steel pipe and the channel steel, the field installation is convenient, and the installation position height can be adjusted.

Description

Vertical soil pressure monitoring device strictly guaranteed by levelness

Technical Field

The utility model belongs to the geotechnical engineering field, concretely relates to vertical soil pressure monitoring devices of strict assurance of levelness.

Background

In geotechnical engineering, vertical soil pressure is one of important indexes of load calculation, and different internal force combinations are carried out on the design value of the vertical soil pressure and the design values of other loads to serve as the basis of soil deformation and damage analysis. But in the measuring process, certain difficulty exists in strictly ensuring the horizontal arrangement of the soil pressure cell. If the levelness is not guaranteed, the monitoring direction of the soil pressure can be directly influenced, and then the vertical soil pressure is not monitored.

The invention patent CN114232585A provides a method for maintaining levelness and field installation of a soil pressure cell, a sheep eye screw is arranged on the soil pressure cell, a processed hollow thin tube and a cross-shaped steel bar are fixed with the soil pressure cell, and the soil pressure cell is placed at a specified depth in a mode of lowering a rope. The method can be installed and placed on a construction site, and is convenient and fast to operate. However, the soil pressure cell rotates along with the deformation of the soil body, and the levelness of the soil pressure cell is affected along with the time, so that the soil pressure cell cannot effectively monitor the vertical soil pressure.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to solve the problems that the operation is complex, the cost is too high, and the soil body can not be completely kept horizontal under the deformation condition in the prior art.

In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows:

a vertical soil pressure monitoring device strictly guaranteed in levelness comprises a steel pipe, a hoop, channel steel and a soil pressure box; the soil pressure boxes are in a group and are respectively horizontally arranged on the corresponding channel steel; the channel steel is respectively arranged at different heights of the steel pipe through corresponding hoops; the soil pressure box is horizontally arranged on the steel pipe through the channel steel and the anchor ear and is embedded into the soil body along with the steel pipe.

Furthermore, a group of notches for mounting channel steel are formed in the side surfaces of the steel pipes at different heights; the channel steel is clamped in the corresponding notch, and the two sides of the channel steel are fixed through the hoops sleeved on the steel pipes.

Furthermore, the channel steel is positioned at the anchor ear fixing position and is respectively provided with a group of bolt holes; the two ends of the anchor ear are fixed through bolts penetrating through the bolt holes respectively.

Preferably, the channel steel is of a square opening structure, the middle face of the channel steel is horizontally arranged on the steel pipe through the anchor ear, and the channel steel and the two side faces enclose to form a holding space for installing the soil pressure cell.

Preferably, the soil pressure cell is horizontally fixed on the middle surface of the channel steel and the inner walls of the two side surfaces of the channel steel through screws respectively.

Preferably, the opening depth of the notch is 1/3-1/2 of the cross section of the steel pipe.

Preferably, the distance between the two side surfaces of the channel steel is equal to the diameter of the soil pressure box; the length of the two side surfaces extending outwards is 1.1 to 1.2 times of the radius of the soil pressure box.

Furthermore, the channel steel is positioned at the installation position of the steel pipe, and a through hole for leading the data line of the soil pressure cell into the steel pipe and leading out the data line is reserved.

Has the beneficial effects that:

the monitoring device is closely connected with the soil pressure cell through bolts and channel steel, and is fixed on the steel pipe through the anchor ear, so that the levelness of the soil pressure cell is guaranteed. The hoop is used for connecting the steel pipe and the channel steel, the field installation is convenient, and the installation position height can be adjusted. The levelness of the soil pressure cell is strictly guaranteed through the channel steel and the hoop, the problem that the soil pressure cell is disturbed by soil bodies and then influences the levelness is solved, the economic benefit is high, and the installation is simple and the operation is convenient.

Drawings

These and/or other advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings and the following detailed description.

Fig. 1 is a schematic plan view of a mounting structure of a channel steel to a steel pipe.

Fig. 2 is a schematic front view of a mounting structure of a channel steel to a steel pipe.

Fig. 3 is a schematic view of the overall structure of the monitoring device.

Fig. 4 is a schematic diagram of the monitoring device in use.

Wherein each reference numeral represents:

1, steel pipes; 11 notches; 2, hoop fastening; 3, channel steel; 31 bolt holes; a middle surface of the 32 channel steel; 33, side faces of channel steel; 4, a soil pressure box; 5, bolts; and a screw 6.

Detailed Description

The invention will be better understood from the following examples.

The drawings in the specification show the structure, ratio, size, etc. only for the purpose of matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and not for the purpose of limiting the present invention, so the present invention does not have the essential meaning in the art, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and achievable purpose of the present invention. In addition, the terms "upper", "lower", "front", "rear" and "middle" are used in the present specification for the sake of clarity, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the relative relationship can be changed or adjusted without substantial technical changes.

As shown in fig. 1 to 3, the vertical soil pressure monitoring device with strictly guaranteed levelness comprises a steel pipe 1, a hoop 2, a channel steel 3 and a soil pressure box 4; the soil pressure boxes 4 are in a group and are respectively and horizontally arranged on the corresponding channel steel 3; the channel steel 3 is respectively arranged at different heights of the steel pipe 1 through corresponding anchor ears 2; the earth pressure cell 4 is horizontally attached to the steel pipe 1 by the channel steel 3 and the anchor ear 2, and is buried in the earth along with the steel pipe 1.

Wherein, the side surface of the steel pipe 1 is provided with a group of notches 11 for mounting the channel steel 3 at different heights; the channel steel 3 is clamped in the corresponding notch 11, and the two sides of the channel steel are fixed through the anchor ears 2 sleeved on the steel pipe 1.

The channel steel 3 is positioned at the fixed position of the hoop 2 and is respectively provided with a group of bolt holes 31; the two ends of the hoop 2 are fixed through bolts 5 penetrating through the bolt holes 31 respectively.

The channel steel 3 is a square opening structure, wherein the middle surface 32 is horizontally arranged on the steel pipe 1 through the anchor ear 2, and forms a holding space for installing the soil pressure cell 4 by enclosing with the two side surfaces 33. The soil pressure cell 4 is horizontally fixed to the inner walls of the middle surface 32 and the two side surfaces 33 of the channel steel 3 by screws 6.

The opening depth of the notch 11 is 1/3-1/2 of the cross section of the steel pipe 1. The distance between the two side surfaces 33 of the channel steel 3 is equal to the diameter of the soil pressure box 4; the length of the two side surfaces 33 extending outwards is 1.1 to 1.2 times of the radius of the soil pressure cell 4.

The channel steel 3 is arranged at the installation position of the steel pipe 1, and a through hole for leading out the data line of the soil pressure cell 4 through the steel pipe 1 is reserved.

With reference to fig. 4, the monitoring device is used as follows:

(1) According to the hole sites of the design drawing, conducting hole leading construction by using a drilling well, wherein the hole depth is slightly larger than the design depth of a first soil pressure monitoring point, taking out soil bodies for drilling construction, and placing the soil bodies around the hole sites in sequence;

(2) Fixing a channel steel 3 on a steel pipe 1 through a bolt 5 by using a hoop 2, arranging a notch 11 corresponding to the size of the channel steel 3 on the steel pipe 1 in order to enable the position of the channel steel 3 to be horizontal, and clamping the channel steel 3 into the notch 11; then use screw 6 with soil pressure cell 4 zonulae occludens in channel-section steel 3 to fix with screw 6, guarantee soil pressure cell 4 level, form a set of soil pressure cell mount.

(3) For the first soil pressure monitoring point, pouring a proper amount of clean fine sand into the bottom of the hole, backfilling the bottom of the hole to the depth of the first soil pressure monitoring point, and then using a permeable gravity hammer to tap the backfilled fine sand back and forth to achieve the effect of compacting the soil body.

(4) Vertically placing the manufactured soil pressure box frame into the deep hole of the measuring point of the first soil pressure box, leading the monitoring line of the soil pressure box out to an orifice along a steel pipe, then filling a small amount of fine sand around and on the soil pressure box, and using a water-permeable gravity hammer to tap the fine sand on the upper part of the soil pressure box back and forth to achieve the effect of compacting a soil body; and finally, finding a soil body at a corresponding depth around the hole opening, backfilling the soil body into the monitoring hole in a layered mode, and tapping back and forth by using a water-permeable gravity hammer every time one layer of soil is backfilled to achieve the effect of compacting the soil body.

(5) And repeating the steps, burying the soil pressure cell at other soil pressure monitoring points in the monitoring hole site, and finally finishing the burying work of the soil pressure cell of the monitoring hole site. And (3) connecting each soil pressure cell signal wire led out from the orifice into a multi-channel signal acquisition instrument, and monitoring soil pressure data of each point.

The utility model provides a vertical soil pressure monitoring devices's that levelness is strictly guaranteed thinking and method, the method and the way that specifically realize this technical scheme are many, above only the utility model discloses a preferred embodiment should point out, to the ordinary technical personnel of this technical field, not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improve and moist decorations should also regard as the utility model discloses a protection range. All the components not specified in this embodiment can be implemented by the prior art.

Claims

1. A vertical soil pressure monitoring device strictly ensuring levelness is characterized by comprising a steel pipe (1), a hoop (2), channel steel (3) and a soil pressure box (4); the soil pressure boxes (4) are in a group and are respectively horizontally arranged on the corresponding channel steel (3); the channel steel (3) is respectively arranged at different heights of the steel pipe (1) through corresponding anchor ears (2); the earth pressure box (4) is horizontally arranged on the steel pipe (1) through the channel steel (3) and the hoop (2) and is embedded into the earth along with the steel pipe (1).

2. The vertical soil pressure monitoring device strictly guaranteed by levelness as claimed in claim 1, wherein a group of notches (11) for mounting channel steel (3) are formed in the side surface of the steel pipe (1) at different heights; the channel steel (3) is clamped in the corresponding notch (11), and the two sides of the channel steel are fixed through the anchor ear (2) sleeved on the steel pipe (1).

3. The vertical soil pressure monitoring device strictly guaranteed in levelness as claimed in claim 2, wherein the channel steel (3) is located at a fixed position of the hoop (2) and is provided with a group of bolt holes (31); the two ends of the anchor ear (2) are fixed through bolts (5) penetrating through the bolt holes (31) respectively.

4. The vertical soil pressure monitoring device strictly guaranteeing levelness according to claim 1, characterized in that the channel steel (3) is of a square opening structure, wherein an inner face (32) is horizontally installed on the steel pipe (1) through an anchor ear (2) and forms a holding space for installing the soil pressure cell (4) by enclosing with two side faces (33).

5. The vertical soil pressure monitoring device with strictly guaranteed levelness as claimed in claim 4, wherein the soil pressure box (4) is horizontally fixed on the inner walls of the middle surface (32) and the two side surfaces (33) of the channel steel (3) through screws (6).

6. The vertical soil pressure monitoring device with strictly guaranteed levelness as claimed in claim 2, wherein the opening depth of the notch (11) is 1/3-1/2 of the cross section of the steel pipe (1).

7. The apparatus for monitoring the soil pressure in the vertical direction with strictly guaranteed levelness according to claim 5, wherein the distance between the two side faces (33) of the channel steel (3) is equal to the diameter of the soil pressure box (4); the length of the two side surfaces (33) extending outwards is 1.1 to 1.2 times of the radius of the soil pressure box (4).

8. The vertical soil pressure monitoring device strictly guaranteeing levelness according to claim 1, characterized in that the channel steel (3) is located at the installation position of the steel pipe (1), and a through hole for leading out a data line of the soil pressure cell (4) through the steel pipe (1) is reserved.