CN215057471U

CN215057471U - Anti-impact collaborative pressure-yielding annular support for deep well tunnel

Info

Publication number: CN215057471U
Application number: CN202121013496.8U
Authority: CN
Inventors: 方珏静; 杨科; 吕鑫; 刘帅; 王于
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2021-12-07
Anticipated expiration: 2031-05-06

Abstract

The utility model relates to a roadway rock burst prevention and treatment technology, and discloses a deep well roadway impact-prevention cooperative pressure-yielding annular support, which comprises eight parts, namely an annular support, a pressure-yielding spring, a support bearing plate, a hydraulic control port, an external bearing port, a support bearing column, a connection bearing pipe and a hydraulic cavity; a hydraulic cavity is reserved in the annular bracket, external bearing ports are uniformly formed in the periphery of the annular bracket, and a hydraulic control port is reserved on the inner side of the annular bracket; the support bearing column is sequentially nested with the connecting bearing pipe and the pressure-yielding spring, the support bearing plate is welded and fixed with the support bearing column, the support bearing column is connected with an external bearing port through threads on the external bearing pipe, and the impact-proof annular support capable of yielding in coordination is formed. The utility model discloses can strut deep well tunnel, safe and reliable on the one hand, convenient quick and with low costs, on the other hand effectively carries out the protecting against shock and lets the pressure.

Description

Anti-impact collaborative pressure-yielding annular support for deep well tunnel

Technical Field

The utility model relates to a tunnel rock burst prevention and cure technique, concretely relates to deep well tunnel protecting against shock lets in coordination and presses annular support.

Background

Coal resources are mined from shallow parts, the burial depth of a mined coal layer is inevitably increased along with coal mining, and the development of a production mine to deep parts is accelerated by the expansion of mining scale and the improvement of mechanization level. Deep coal mining is a problem to be faced by most of main coal mining countries in the world at present and in the future, and with the large energy demand, the mine deepening speed is accelerated, and some coal mines are turned or are about to enter deep mining.

Along with the continuous increase of the mining depth of the mine, the mine gradually has the problems of strong mine pressure display, difficult roadway maintenance, high ground temperature, difficult exploration, deteriorated mining conditions, reduced production technical effect and economic benefit and the like. On one hand, the section of the roadway needs to be enlarged; on the other hand, the ground pressure is increased, the surrounding rock moves more violently under the action of high stress at the deep part, the deformation and the damage of the roadway are more serious, and the problem of deep well roadway maintenance becomes the weakest link in the whole mine production system. Meanwhile, with the increase of the mining depth, the stress of the coal rock body is increased, the number of coal beds with rock burst danger is increased, the number of mines with rock burst is gradually increased, and the frequency, strength and damage degree of rock burst are gradually increased along with the increase of the mining depth. Therefore, the utility model relates to a safe and reliable, convenient quick, high-efficient practical and with low costs deep well tunnel protecting against shock let in coordination press the annular support.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that existing equipment is difficult to strut the deep well tunnel, designed safe and reliable, convenient quick, high-efficient practical and with low costs deep well tunnel protecting against shock in coordination and let press the ring carrier.

The utility model discloses a following technical scheme realizes: the deep well tunnel protecting against shock lets pressure ring carrier in coordination, its characterized in that, including ring carrier, let pressure spring, support bearing plate, hydraulic control mouth, external bearing mouth, support the bearing post, connect bearing pipe, hydraulic pressure chamber eight parts constitute.

Specifically, a hydraulic cavity is reserved in the annular support, external bearing ports are uniformly formed in the periphery of the annular support, and a hydraulic control port is reserved on the inner side of the annular support; the support bearing column is sequentially nested with the connecting bearing pipe and the pressure-yielding spring, the support bearing plate is welded and fixed with the support bearing column, the support bearing column is connected with an external bearing port through threads on the external bearing pipe, and the impact-proof annular support capable of yielding in coordination is formed.

Specifically, the annular support can be of an integral structure or can be disassembled into a plurality of parts for assembly, so that the sealing of the hydraulic cavity is ensured;

specifically, oil is filled in the hydraulic cavity, so that the purpose of impact resistance yielding is achieved;

specifically, the size of the supporting and bearing plate can be selected;

specifically, the hydraulic control port can be connected with a hydraulic pump for pressure control.

Drawings

Figure 1 is the realization the utility model discloses deep well tunnel protecting against shock lets in coordination presses annular support three-dimensional half cut-away drawing.

Fig. 2 is a front cross-sectional view of fig. 1.

Fig. 3 is a perspective view of the parts of fig. 1.

Fig. 4 is a front view of the part of fig. 1.

In the figure, 1 is a ring-shaped bracket; 2 is a pressure-yielding spring; 3, a supporting bearing plate; 4 is a hydraulic control port; 5 is an external bearing port; 6 is a supporting pressure-bearing column; 7 is a connecting bearing pipe; and 8 is a hydraulic cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

The utility model provides a deep well tunnel protecting against shock lets in coordination and presses annular support. As shown in fig. 1 to 4, the hydraulic support comprises eight parts, namely an annular support 1, a yielding spring 2, a support pressure-bearing plate 3, a hydraulic control port 4, an external bearing port 5, a support pressure-bearing column 6, a connecting bearing pipe 7 and a hydraulic cavity 8.

Specifically, a hydraulic cavity 8 is reserved in the annular support 1, external bearing ports 5 are uniformly formed in the periphery of the annular support 1, and a hydraulic control port 4 is reserved on the inner side; support bearing post 6 in proper order with connect bearing pipe 7, let pressure spring 2 nest mutually, and support bearing plate 3 and support bearing post 6 welded fastening, bear the mouth 5 with this part through external screw thread on bearing pipe 7 with the external world and link to each other, constitute the protecting against shock in coordination and let the pressure ring support.

Specifically, the annular bracket 1 can be of an integral structure or can be disassembled into a plurality of parts for assembly, so that the sealing of the hydraulic cavity is ensured;

specifically, oil is filled in the hydraulic cavity 8, so that the purpose of impact resistance yielding is achieved;

specifically, the size of the support pressure bearing plate 3 can be selected;

specifically, the hydraulic control port 4 can be connected with a hydraulic pump for pressure control.

The above description is only the basic solution of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. Deep well tunnel protecting against shock lets in coordination presses annular frame, its characterized in that, include annular frame, let pressure spring, strut bearing plate, hydraulic control mouth, external bearing mouth, strut the bearing post, connect bearing pipe, hydraulic pressure chamber totally eight parts:

a hydraulic cavity is reserved in the annular bracket, external bearing ports are uniformly formed in the periphery of the annular bracket, and a hydraulic control port is reserved on the inner side of the annular bracket; the support bearing column is sequentially nested with the connecting bearing pipe and the pressure-yielding spring, the support bearing plate is welded and fixed with the support bearing column, the support bearing column is connected with an external bearing port through threads on the external bearing pipe, and the impact-proof annular support capable of yielding in coordination is formed.

2. The deep well roadway impact-prevention cooperative yielding annular support according to claim 1, wherein the annular support has two structures, namely an integral structure and an assembly structure, which ensure sealing of a hydraulic cavity.

3. The deep well roadway impact-prevention cooperative pressure-yielding annular support according to claim 1, wherein the hydraulic cavity is filled with oil to achieve the purpose of impact-prevention pressure-yielding.

4. The deep well roadway impact-prevention cooperative yielding annular support as claimed in claim 1, wherein the size of the support pressure-bearing plate is selectable.

5. The deep well roadway impact-prevention cooperative yielding annular support as claimed in claim 1, wherein the hydraulic control port is connectable to a hydraulic pump for pressure control.