mechanization

Combined with Sujiayan Tunnel of Zhengzhou-Wanzhou High-speed Railway，a set of mechanized supporting and optimization schemes suitable for the excavation of a full section tunnel in weak surrounding rock is summarized．It can be obtained through field practice that improving the drilling-blasting

Mechanization of tunnel construction has become an important direction for the development of tunnel construction． Based on the construction of Dading Tunnel of Zhu-Zhao High-speed Ｒailway，the characteristics of mechanized tooling equipment involved in the standardized process of tunnel

As a key mechanical equipment for mechanized tunnel construction, the fully computerized three-arm drilling rig has been widely used in tunnel construction. Based on this, taking the construction of a fully computerized three-arm drilling rig in a railway tunnel as an example, the functions of

With the continuous development of China's social economy, the land transportation system has become increasingly perfect in recent years, and the number of new highway projects has increased. Many highway construction needs to cross mountains, among which tunnel construction has become a key and

Taking a highway project as an example, based on the mechanized supporting construction plan, this paper focuses on the advanced geological prediction, excavation, support, invert, lining and other key technologies of tunnel mechanization supporting, and through comparative analysis of traditional

As an important mechanical equipment for mechanized tunnel construction, the intelligent two-arm rock drilling rig has been widely used in small-section tunnel construction. This article takes the mechanized excavation of the exploration tunnel of a pumped storage project as an example to

With the rapid development of the transportation industry,the characteristics of short construction period,high construction quality and high construction technology have become more and more prominent in the construction of high - speed railway tunnels. In the long tunnel construction,the blasting

This paper takes the new mechanized tunnel shelving model of S company, a third -level subsidiary of a large -scale construction enterprise of the central government, as the research object, based on the relevant principles of the new institutional economics,and combined with the primary source

This paper mainly introduces the construction of the ZQ-2 section tunnel of the new Yichang Zhengzhou Wanzhou highspeed railway connecting line. Because the surrounding rock of the tunnel in this project is of low grade, the tunnel section is large and most of them are long tunnels, and the

Based on the analysis of the application of cantilever TBM and self-propelled inverted arch trestle in Daqing project, this paper discusses the standardized configuration of new-type machinery for highway tunnel construction. The application of the cantilever roadheader and the self-propelled

At present, the quota for mechanized supporting construction of railway tunnels is under refinement while corporate construction technology management and cost control are under exploration. In the paper, with the example of excavation, concrete spraying and other sub-measurement of mechanized

Mechanization is essential for improving the safety and environmental conditions of tunnel drilling and blasting operations. Currently, China is facing serious problems with regard to tunneling, such as difficulties in recruiting blasting workers, fully utilizing the drilling trolley

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