Analysis of Shield Construction in Spherical Weathered Granite Development Area
Abstract
The distribution of spherical weathered bodies (commonly known as "boulder") in the granite development area directly affects the shield construction of urban rail transit engineering. This paper is based on the case of shield construction of granite globular development area in Southern China area, the parameter control in shield machine selection and shield advancing during the shield tunneling in this special geological environment is analyzed. And it is suggested that shield machine should be selected for shield construction of granite spherical weathered zone. Driving speed, cutter torque, shield machine thrust, the amount of penetration and the speed of the cutter head of shield machine should be controlled when driving the boulder formation, in order to achieve smooth excavation and reduce the disturbance to the formation.
- Publication:
-
IOP Conference Series: Earth and Environmental Science
- Pub Date:
- January 2018
- DOI:
- 10.1088/1755-1315/108/3/032066
- Bibcode:
- 2018E&ES..108c2066C