Abstract During metro construction, underground pipelines, especially gas pipelines, are often encountered in very close proximity, which significantly affects the safety and construction schedule of a bored metro tunnel. As for the Antuoshan to Qiaoxiang section of Lot 2222 of the Shenzhen Metro line 2, horizontal jet grouting piles and deep-hole curtain grouting, as well as pipeline hanging, were undertaken to effectively control settlement. This paper presents a comparison of various protection schemes as well as their implementation and effects.
Abstract：
During metro construction, underground pipelines, especially gas pipelines, are often encountered in very close proximity, which significantly affects the safety and construction schedule of a bored metro tunnel. As for the Antuoshan to Qiaoxiang section of Lot 2222 of the Shenzhen Metro line 2, horizontal jet grouting piles and deep-hole curtain grouting, as well as pipeline hanging, were undertaken to effectively control settlement. This paper presents a comparison of various protection schemes as well as their implementation and effects.
ZHU Kang-Ning
.Protection Scheme for a Shallow-Bored Tunnel Under a Gas Pipeline with Intermediate High Pressure[J] MODERN TUNNELLING TECHNOLOGY, 2012,V49(2): 142-146
2012, Vol. 49 