Non-explosive tunnel excavation construction method

A construction method and non-explosive technology, applied in tunnels, earthwork drilling, mining equipment, etc., can solve the problems of low work efficiency, uneconomical, large equipment investment, etc., and achieve the effect of low cost, less labor, and less equipment investment.
CN102392650AActive Publication Date: 2012-03-28CHINA RAILWAY TUNNEL GROUP CO LTD
3 Cites 30 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY TUNNEL GROUP CO LTD
Publication Date
2012-03-28

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a non-explosive tunnel excavation construction method, characterized by comprising the following concrete steps of: firstly, drilling splitting holes in the horizontal direction according to the designed separation distance on the periphery of an excavation area; erecting an operating rack in a tunnel, drilling for coring in the horizontal direction in a cyclotomic mode along the periphery of the excavation area by using a water mill drill, forming a continuous channel free face on the periphery of the excavation area; and splitting for excavating the rock mass inwards from the periphery of the continuous channel free face, and manually clearing the split rock mass. The construction method is safe and economical and has relatively high work efficiency, thus being applicable to underground engineering in construction sites with low surface under-passing shock resistant grade, or sites and parts where concussion of blasting is not allowed.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a non-explosive excavation construction method in underground engineering, which is suitable for non-explosive excavation construction in rock underground engineering. Background technique

[0002] With the acceleration of my country's railway, highway and urban infrastructure construction, most of the tunnels are shallowly buried and pass through urban and rural structures and buildings, and the drilling and blasting method is still used in the construction of tunnels in these areas. In order to ensure the safety of surface residents, structures and buildings, blasting vibration control technology must be used in drilling and blasting construction. However, even the most advanced blasting vibration control technology can only minimize the blasting vibration, and the vibration velocity control of blasting vibration is relatively volatile, which is easy to affect residents. When excavating shallow-buried tunnels in an urban env...

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