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Construction method for continuous tunneling of coal mine TBM and coal mine TBM

A construction method and technology for coal mines, applied in mining equipment, earthwork drilling, tunnels, etc., can solve problems such as low work efficiency in rock roadway excavation

Active Publication Date: 2020-10-20
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a construction method for coal mine TBM continuous tunneling and coal mine TBM, which solves the problem of low work efficiency of rock tunnel tunneling in the prior art

Method used

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  • Construction method for continuous tunneling of coal mine TBM and coal mine TBM
  • Construction method for continuous tunneling of coal mine TBM and coal mine TBM
  • Construction method for continuous tunneling of coal mine TBM and coal mine TBM

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Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1: as Image 6 As shown, a coal mine TBM includes an explosion-proof shield body 101 and a slag removal system 103, both of which adopt an explosion-proof design to meet the safety requirements of coal mine excavation. The cross-section of the explosion-proof shield 101 can be circular or rectangular as required. The front end of the explosion-proof shield body 101 is provided with an excavation device 102, and the design of the excavation device can adopt the existing cutter head design. The combined use of the excavation device can realize the steering of the excavation device, making the excavation more flexible and realizing continuous excavation. The slag discharge system 103 corresponds to the slag discharge port of the excavation device 102, and the slag discharge system 103 can use a central belt conveyor and a tail belt conveyor for smooth slag discharge during the excavation process.

[0033] Further, the explosion-proof shield body 101 includes a...

Embodiment 3

[0043] Embodiment 3, a construction method for continuous tunneling by TBM in a coal mine. In step S6, when N=1, the steps are as follows: B1: excavate two main transport roadways 6 longitudinally on both sides of the area to be excavated. The preset position of a main transport roadway 6 is used as a starting site 11 arranged laterally, and the preset position of another transport roadway 6 is used as a receiving site 12 arranged horizontally; The site is located at another level of the excavated rock lane;

[0044] B2: Hoist the coal mine TBM to the starting site 11, and then carry out continuous lateral excavation of the first rock roadway 1 along the preset route;

[0045] B3: When the coal mine TBM finishes excavating the first rock roadway, it just returns to the receiving station 12, and then lifts the coal mine TBM out of the roadway along the main transport roadway 6 to complete the entire excavation work.

[0046] In the step S6, N (N≥2) rock roadways are arranged i...

Embodiment 4

[0049] Embodiment 4: as Figure 3-5 As shown, taking the gas drainage roadway digging in the working face of the main mining coal seam of the coal mine as an example, the main mining coal seam 25 is a high-gas coal seam. 6 excavation. That is, gas drainage must be performed on the mining face before mining, and before the working face of the main mining seam is excavated along the trench 28, the coal mine TBM8 is used in the overlying strata 24 of the main coal mining seam 25, along the trench with the working face of the main coal mining seam. 28 into a certain angle and azimuth, and excavate the high-level gas drainage lane or measure lane 23, or adopt a coal mine TBM8 in the overburden layer 27 under the main coal mining seam 25, and form a certain angle and azimuth with the main coal mining seam working face along the groove 28, Excavate the low-level gas drainage roadway 26, and use the coal mine TBM8 to carry out the small turning radius, reciprocating, continuous and u...

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Abstract

The invention discloses a construction method for continuous tunneling of a coal mine TBM and the coal mine TBM. The problem that in the prior art, the working efficiency of rock roadway tunneling islow is solved. The construction method for continuous tunneling of the coal mine TBM comprises the following steps that (1), a main transportation roadway is longitudinally excavated in the one side of an area to be excavated; (2), a starting station and a receiving station which are transversely arranged are constructed at preset positions of the main transportation roadway; and (3) the coal mineTBM is hoisted to the starting station, and then continuous transverse excavation of a first roadway is carried out along a preset route. According to the construction method for continuous tunnelingof the coal mine TBM and the coal mine TBM, a method for the coal mine TBM to carry out small turning radius, reciprocating and continuous ceaseless rock roadway tunneling in a disassembling-free mode is proposed; and by means of the method, the coal mine rock roadway tunneling speed is at least increased by five times or above on the basis of a traditional tunneling speed, and the tunneling method has the advantages of being high in construction mechanization degree, high in tunneling working efficiency, good in roadway forming effect, high in work safety and the like and has high popularization value.

Description

technical field [0001] The invention relates to the technical field of coal mine excavation, in particular to a construction method for coal mine TBM continuous roadway excavation and a coal mine TBM. Background technique [0002] At present, there are mainly two methods of tunneling in coal mines, namely drilling and blasting and cantilever tunneling. These two methods of tunneling in rocks have their own limitations. [0003] Drilling and blasting method is used to excavate roadway, such as the method of rapid excavation and continuous support operation of coal mine roadway with application number 201310469323.0, which mainly adopts manual or mechanical rock drilling for drilling, charging and blasting, through belt conveyor system or scraper conveyor, rail The excavation method is to excavate slag in the form of mine car and trackless rubber-tyred vehicle, and carry out roadway maintenance accordingly. This method adopts the method of independent excavation of single lan...

Claims

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Application Information

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IPC IPC(8): E21D9/06E21D9/08E21D9/14
CPCE21D9/06E21D9/08E21D9/0621E21D9/14
Inventor 陈虎忠王乐刘文学高建高雁邱胜进
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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