Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

An excavation method based on partial section blasting and roadheader excavation

A roadheader and cross-section technology, which is applied in blasting, earthwork drilling, mining equipment, etc., can solve the problems of low tunneling speed and footage damage, and achieve high tunneling efficiency, avoid defects, and control surrounding rock damage.

Active Publication Date: 2022-03-22
BEIJING RES INST OF URANIUM GEOLOGY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose an excavation method based on local section blasting and roadheader excavation, which is used to solve the technical problems of uncontrollable footage damage and low excavation speed in the existing rock breaking technology

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An excavation method based on partial section blasting and roadheader excavation
  • An excavation method based on partial section blasting and roadheader excavation
  • An excavation method based on partial section blasting and roadheader excavation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0029] Such as Figure 1-3 Shown, a kind of excavation method based on local section blasting and roadheader excavation is characterized in that: the method comprises the following steps:

[0030] Step 1: Measure the excavation face;

[0031] Step 2: Determine the free operation area of ​​the blast hole drilling tool and the parameters of the blast hole;

[0032] Step 3: Set blasting parameters;

[0033] Step 4: implement blasting;

[0034] Step 5: The rock mass is loosened and pre-cracked, and the roadheader excavates the rock mass.

[0035] The first step: measuring the excavation face includes: first measuring the excavation face of the roadway. This excavation method is suitable for various excavation sections. Generally, it is a circular contour area. For hard rock excavation, it is based on the theoretical basis that blasting can im...

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

No PUM Login to View More

Abstract

The invention belongs to the technical field of excavation and blasting, and in particular relates to an excavation method based on local section blasting and roadheader excavation; the method comprises the following steps: Step 1: measure the excavation tunnel face; Step 2: determine blasthole drilling tools Free operation area and blasting hole parameters; Step 3: Set blasting parameters; Step 4: Implement blasting; Step 5: Rock mass is loosened and pre-cracked, and the roadheader excavates the rock mass. The excavation method described in the present invention can take advantage of the advantages that drilling machine drilling can be freely implemented in the local area of ​​the cutter head and cutter body of the roadheader, and the drilling equipment can be conveniently arranged and controlled in this local area without being restricted by the existing cutter head The device position of the module is limited; and it can be operated by ordinary pneumatic drills for manual drilling or hydraulic drilling rigs for mechanical drilling, which is simple and convenient, with high excavation efficiency and good chamber formation.

Description

technical field [0001] The invention belongs to the technical field of tunneling and blasting, and in particular relates to an excavation method based on local section blasting and tunneling machine excavation. Background technique [0002] Excavation method is of great significance to roadway and other tunneling projects, which directly determines the tunneling efficiency of tunneling operations. Especially for the excavation of medium-hard rock mass, different excavation methods play an important role. Reasonable excavation methods are conducive to the shape of the rock mass and cavity formation, and are easy to control the damage of the surrounding rock at the face of the tunnel, thus To achieve a good tunneling effect. At present, the excavation methods of projects at home and abroad can be divided into two types: blasting excavation and mechanical excavation. Among them, blasting excavation uses explosives, detonators and other blasting consumables to detonate rock and...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F42D1/00F42D1/10F42D3/04E21D9/00E21D9/10
CPCF42D1/00F42D1/10F42D3/04E21D9/006E21D9/10
Inventor 王驹满轲雷升祥王雁军廖建炜程永亮刘绍宝
Owner BEIJING RES INST OF URANIUM GEOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com