A New Rapid Excavation Technology of Ultra-Large Cross-section Roadway
A technology of super large section and roadway, used in tunnels, tunnel linings, shaft equipment, etc., can solve the problems of inaccessible cutting arm, poor effect, small cutting size, etc., achieve a high level of mechanization, solve construction difficulties, and excavate fast effect
Active Publication Date: 2022-02-25
新汶矿业集团设计研究院有限公司
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In super-large-section roadway excavation, the effects of these two technologies are not good, and the construction of blasting technology is difficult and the progress is slow; the cutting size of fully mechanized excavator equipment is too small, and it is difficult to form a roadway.
[0003] Limited by the cutting size of the fully-mechanized excavator, the roadway is too high and the cutting arm cannot reach it; the roadway is too wide, and the fully-mechanized excavator needs to swing left and right to cut, but limited by the rear belt, the left-right swing of the fully-mechanized excavator is limited
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0027] Such as figure 1 As shown, the embodiment of the present invention provides a novel ultra-large-section roadway rapid excavation process, which includes the following steps:
[0028] S1. Set up the shield machine at the excavation site (taking the diameter of the cutting part of the shield machine as 6.3 meters as an example), mark and locate the cutting target, and divide the target roadway to be cut into several In the cutting area, use the shield machine to cut the target into a circular roadway with a diameter of 6.3 meters (such as figure 1 As shown in part a), wherein, the model of the shield machine includes but is not limited to TBM shield machine;
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a novel ultra-large-section roadway rapid excavation process, which relates to the technical field of roadway excavation construction. The new super-large-section roadway rapid excavation process includes the following steps: S1. Set up a shield machine at the excavation site, and use the shield machine to cut the target into a circular roadway with a specified diameter; S2. Protect the upper part; S3. After the shield machine continuously cuts and supports for a certain distance, retreat the shield machine, and perform a concentrated blasting or pick removal process on the circular roadway. S4. Fill the circular tunnel with the above-mentioned waste rock. In the middle of the bottom surface of the roadway, the entire floor is kept at a level, and at the same time, the straight wall part formed is supported. Compared with the prior art, the present invention has the characteristics of high mechanization level, fast excavation speed, and rapid roadway formation, solves the problems of difficult construction and slow excavation speed of underground ultra-large-section roadways, and has advantages in long-distance super-large-section roadway excavation construction. obvious advantage.
Description
technical field [0001] The invention relates to the field of roadway excavation construction technology, in particular to a novel super-large-section roadway rapid excavation process. Background technique [0002] At present, there are two kinds of tunneling construction techniques for underground tunnels: gun excavation and fully mechanized excavation. In super-large-section roadway excavation, the effects of these two technologies are not good. The construction of blasting technology is difficult and the progress is slow; the cutting size of fully-mechanized excavator equipment is small, and it is difficult to form a roadway. [0003] Limited by the cutting size of the fully-mechanized excavator, the roadway is too high and the cutting arm cannot reach it; the roadway is too wide, and the fully-mechanized excavator needs to swing from side to side to cut, but limited by the rear transport belt, the left-right swing of the fully-mechanized excavator is limited. Therefore, ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/08E21D9/087E21D9/00E21D11/10E21D11/14E21D20/00
CPCE21D9/08E21D9/087E21D9/003E21D20/003E21D11/105E21D11/14
Inventor 董凤宝杨士超孙杨张竞生田华陈冬梅
Owner 新汶矿业集团设计研究院有限公司