CN217424379U

CN217424379U - Measurement reference structure integrating ground settlement monitoring elevation and plane control point

Info

Publication number: CN217424379U
Application number: CN202221190978.5U
Authority: CN
Inventors: 陈明忠; 胡海涛; 熊福文; 曾涛; 尹雄; 贝世顺
Original assignee: SHANGHAI INSTITUTE OF GEOLOGICAL PROSPECTING TECHNOLOGY; SHANGHAI INSTITUTE OF GEOLOGICAL SURVEY
Current assignee: SHANGHAI INSTITUTE OF GEOLOGICAL PROSPECTING TECHNOLOGY; SHANGHAI INSTITUTE OF GEOLOGICAL SURVEY
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-09-13
Anticipated expiration: 2032-05-18

Abstract

The utility model belongs to the technical field of geotechnical engineering, mapping engineering technique and specifically relates to a measurement reference structure of integrated ground settlement monitoring elevation and plane control point, its characterized in that: the GNSS observation pier is arranged on the connection platform. The utility model has the advantages that: 1) a measuring reference structure body integrating elevation control points and plane control points can be formed at the measuring position, and measuring references of the two control points do not need to be installed respectively, so that the number of facilities and the occupied area are effectively reduced, and the construction cost is saved; 2) on the basis of ensuring the stability and the working precision of the elevation control points, the stability and the working precision of the GNSS plane control points are effectively improved; 3) simple and reasonable structure, convenient installation and suitability for popularization.

Description

Measurement reference structure integrating ground settlement monitoring elevation and plane control point

Technical Field

The utility model belongs to the technical field of geotechnical engineering, mapping engineering technique and specifically relates to a measurement benchmark structure of integrated ground settlement monitoring elevation and plane control point, especially an elevation measurement benchmark, GNSS plane measurement reference facility for geological disasters prevention and cure.

Background

Elevation measurement and plane measurement have been applied to various fields such as geotechnical engineering, surveying and mapping engineering and the like as common measurement modes. When a certain position needs to be subjected to both elevation measurement and plane measurement, an elevation measurement datum and a plane measurement datum are often required to be established at the position, which is time-consuming, labor-consuming and relatively large in occupied area.

Disclosure of Invention

The utility model aims at providing a measurement benchmark structure of integrated ground settlement monitoring elevation and plane control point according to above-mentioned prior art's is not enough, combines together elevation control point and GNSS plane control point and forms integrative measurement benchmark structure, improves the stability and the work precision of GNSS plane control point.

The utility model discloses the purpose is realized accomplishing by following technical scheme:

the utility model provides a measurement reference structure of integrated ground settlement monitoring elevation and plane control point which characterized in that: the GNSS observation pier is arranged on the connection platform.

The basement rock mark includes sighting rod, mark head and protection tube, wherein the bottom of protection tube sets up on the basement rock, the sighting rod sets up the inside of protection tube, mark head sets up the top of sighting rod, the protection tube with connection platform connects.

And the connecting platform is provided with an auxiliary header of the bedrock mark.

The connecting platform and the protection pipe are welded into a whole.

Grout is poured on the periphery of the protection pipe.

The GNSS plane control point comprises a GNSS observation pillar and a forced centering disc, the bottom of the GNSS observation pillar is arranged on the connecting platform, and the forced centering disc is arranged at the top of the GNSS observation pillar.

The GNSS observation pillar and the connecting platform are welded into a whole.

The connecting platform is a disc in a horizontal state, and the GNSS observation pier is vertically arranged on the disc.

And a forced centering screw is arranged in the center of the forced centering disc.

The utility model has the advantages that:

1) a measuring reference structure body integrating elevation control points and plane control points can be formed at the measuring position, and measuring references of the two control points do not need to be installed respectively, so that the number of facilities and the occupied area are effectively reduced, and the construction cost is saved;

2) on the basis of ensuring the stability and the working precision of the elevation control points, the stability and the working precision of the GNSS plane control points are effectively improved;

3) simple and reasonable structure, convenient installation and suitability for popularization.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of fig. 1.

Detailed Description

The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

as shown in fig. 1-2, the symbols 1-8 in the figures are respectively expressed as: the device comprises a bedrock mark post 1, a bedrock mark protection pipe 2, a bedrock mark head 3, a bedrock mark auxiliary mark head 4, a connecting platform 5, a GNSS observation pier 6, a forced centering disc 7 and a forced centering screw 8.

Example (b): in the embodiment, the measuring device integrating the ground settlement monitoring elevation and the plane control point is a measuring reference structure integrating the elevation control point and the plane control point; when the measuring reference structure is installed at a measuring position, both the elevation measurement and the plane measurement can be realized through the measuring reference structure.

As shown in fig. 1 and fig. 2, the surveying reference structure in this embodiment mainly includes a bedrock mark as an elevation control point and a GNSS plane control point, and in this embodiment, the GNSS plane control point is disposed on a structure of the bedrock mark, so that stability and working accuracy of the GNSS plane control point are effectively improved.

Specifically, as shown in fig. 1 and 2, the bedrock mark includes a bedrock mark post 1, a bedrock mark protection pipe 2, a bedrock mark head 3, and a bedrock mark sub head 4. Wherein, the bottom setting of bedrock mark protection tube 2 has been poured the grout on the basement rock and the periphery of bedrock mark protection tube 2 on the basement rock, has guaranteed the bulk strength and the stability of bedrock mark. The bedrock mark post 1 is arranged inside the bedrock mark protection tube 2 and protected. A bedrock marker head 3 is provided on the top of the bedrock marker post 1 as a measurement reference.

The top of the bedrock mark protection pipe 2 is welded with a connecting platform 5 which is arranged in a horizontal state, and the connecting platform 5 is mainly used for connecting the bedrock mark and a GNSS plane control point. The central point at connecting platform 5 puts and is provided with the round hole that supplies bedrock mark post 1 to pass through, and bedrock mark post 1 can pass through and make bedrock mark head 3 stretch out to outside from this round hole position, from not influencing the measurement of bedrock mark head 3.

In the embodiment, a bedrock mark auxiliary head 4 is arranged on the connecting platform 5, and the bedrock mark auxiliary head 4 is positioned on one side of the bedrock mark head 3 and is used for measuring the elevation of the bedrock mark protection pipe 2.

As shown in fig. 1 and 2, the GNSS plane control point includes a GNSS observation pier 6, a forced centering disk 7, and a forced centering screw 8. The GNSS observation pier 6 is vertically welded on one side of the connecting platform 5 and is arranged in a manner of avoiding the bedrock marker head 3; integrity between GNSS observation pier 6 and connection platform 5 is guaranteed through the welding, utilizes the stability of bedrock mark, guarantees that GNSS observation pier 6 can be by bedrock mark steady support to improve the stability and the work precision of GNSS plane control point. The forced centering disk 7 is mounted on top of the GNSS observation pier 6. And a forced centering screw 8 is arranged at the central position of the forced centering plate 7 and is used for connecting a base to position the GNSS receiver antenna.

In the embodiment, in specific implementation: the GNSS observation pier 6 can adopt a seamless geological steel pipe made of DZ40, and the forced centering disc 7 can adopt a stainless steel plate. The basement rock mark protection tube 2 can adopt the seamless geological steel pipe of material DZ40, and the basement rock mark post 1 can adopt stainless steel pipe. The connecting platform 5 may be a stainless steel disc.

In practical design, GNSS observation pier 6 has a height of 1100mm and a diameter of 127 mm. The forced centering disc 7 has a thickness of 10mm and a diameter of 200 mm. The diameter of the forced centering screw 8 is 16 mm. The diameter of the bedrock mark protection tube 2 is 168 mm. The diameter of the bedrock marker post 1 is 42 mm. The connecting platform 5 has a thickness of 10mm and a diameter of 500 mm.

Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description thereof is not repeated herein.

Claims

1. The utility model provides a measurement reference structure of integrated ground settlement monitoring elevation and plane control point which characterized in that: the GNSS observation pier is arranged on the connection platform.

2. The structure of claim 1, wherein the structure comprises: the basement rock mark includes sighting rod, mark head and protection tube, wherein the bottom of protection tube sets up on the basement rock, the sighting rod sets up the inside of protection tube, mark head sets up the top of sighting rod, the protection tube with connection platform connects.

3. The structure of claim 2, wherein the structure comprises: and the connecting platform is provided with an auxiliary header of the bedrock mark.

4. The structure of claim 2, wherein the structure comprises: the connecting platform and the protection pipe are welded into a whole.

5. The structure of claim 2, wherein the structure comprises: grout is poured on the periphery of the protection pipe.

6. The structure of claim 1, wherein the structure comprises: the GNSS plane control point comprises a GNSS observation pillar and a forced centering disc, the bottom of the GNSS observation pillar is arranged on the connecting platform, and the forced centering disc is arranged at the top of the GNSS observation pillar.

7. The structure of claim 6, wherein the structure comprises: the GNSS observation pillar and the connecting platform are welded into a whole.

8. The structure of claim 6, wherein the structure comprises: the connecting platform is a disc in a horizontal state, and the GNSS observation pier is vertically arranged on the disc.

9. The structure of claim 6, wherein the structure comprises: and a forced centering screw is arranged in the center of the forced centering disc.