high-speed railway tunnel

Mechanization and intelligence are the development trends of drilling and blasting tunnel construction. The lack of coordination between construction methods or parameters and mechanical supporting operations restricts the improvement of mechanical construction efficiency. This article focuses on

This paper introduces the general situation of a single-hole double-track high-speed railway tunnel project, and combines the actual construction of its large-section soft surrounding rock tunnel project. The application technology of construction, optimization of construction operation plan

The article takes the Zhengwan high-speed railway 9 standard project as an example. This project successfully applied 10 three-arm rock drilling rigs for drilling and blasting excavation, especially in the exit section of Xingshan tunnel, and successfully applied to large sections of Ⅳ and Ⅴ

The construction technology of mountain tunnel in China is under-developed. Hence,the mechanized construction method for large cross-sectional tunnel on high-speed railway is introduced. A new kind of tunnel construction organization mode with four tunnel construction lines,i.e. excavation,support

In order to ensure the safety and quality of the construction of Zhengzhou-Wanzhou high-speed railway tunnel and shorten the construction schedule of the tunnel,the large cross-section construction method by triple-boom rock drilling jumbo is put forward.And then proper transformations for the jumbo