Land Lapse Phenomenon and Surface Subsidence Law of Shield Tunnel Passing Through Rock-Bearing Formation
نویسندگان
چکیده
When constructing subway tunnels in coastal cities, boulders with high strength and large volume are often encountered. A number of engineering practices have shown that the existence will destroy unity homogeneity stratum. If tunnel is not properly handled during crossing construction, it lead to collapse surrounding rock; serious cases, may induce ground collapse, damage buildings, endanger safety people’s lives property. Firstly, help similar material simulation test, this paper reproduces phenomenon vault surface when passes through boulder stratum, explores law stratum settlement caused by process excavation, puts forward “weightlessness weak effect” disturbed. Then, taking Liu-Bai inter-district project Shenzhen Metro Line 13 as an example, Midas GTS NX numerical software used compare analyze influence characteristics rock deformation presence or absence verify Finally, treatment measures for given. The research results great significance guide prediction construction project.
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ژورنال
عنوان ژورنال: Frontiers in Earth Science
سال: 2022
ISSN: ['2296-6463']
DOI: https://doi.org/10.3389/feart.2022.934360