Test method for geotechnical engineering excavation construction
A test method and geotechnical engineering technology, applied in the field of excavation, can solve the problems of large tool wear, limited excavation footage, restricting the progress of the project, etc., so as to achieve a small damage range of surrounding rock, avoid slow excavation speed, and control surrounding rock damage. Effect
Active Publication Date: 2019-12-27
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology
However, when excavating in medium and hard rock masses, the amount of tool wear is large, r
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Abstract
The invention belongs to the technical field of heading, and particularly relates to a test method for geotechnical engineering excavation construction. The method comprises the following steps: 1, performing a blasting test; 2, carrying out an excavation test by using a heading machine; 3, determining blasting parameters and excavation parameters of the heading machine; 4, implementing multi-section blasting construction: judging the respective applicability of four different excavation processes such as blasting excavation, heading machine excavation, local section blasting-heading machine combined excavation and full section blasting-heading machine combined excavation according to the blasting parameters and the heading excavation parameters in step 3; 5, performing excavation by the heading machine; and 6, optimizing rock excavation parameters.
Description
technical field [0001] The invention belongs to the technical field of excavation, and in particular relates to a test method for excavation construction of geotechnical engineering. Background technique [0002] Excavation construction methods are of great significance to tunneling projects such as soft and hard rock roadways, which directly determine the tunneling efficiency and project cycle of tunneling operations. Especially for the engineering excavation of extremely hard rock mass, different excavation methods play a decisive role. Choosing a reasonable excavation method is not only beneficial to the excavation efficiency of the rock mass, but also beneficial to the damage control of the surrounding rock of the face. So as to achieve good tunneling effect and excavation footage. 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...
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Login to view more IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 满轲李冬伟
Owner BEIJING RES INST OF URANIUM GEOLOGY
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