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我国经济的快速发展,一线城市地铁项目规划开始加强,并且开始大量的修建城市地铁,在增大经济投入的同时,也投入了大量的技术支持。部分城市在修建的过程中,由于自身地理条件的限制,就会遇到一些地质条件非常复杂的卵石土层,在卵石层中盾构施工开挖面的稳定性成为地铁隧道建设的首选的施工方法,然而不同的地质条件对于卵石层中盾构施工开挖面稳定性要求也不同。本文基于某地铁的卵石层之上,主要探讨地铁卵石层中盾构施工开挖面的稳定性。以供同仁参考,其中的不足之处,希望同行多加指正。
With the rapid economic development in our country, the planning of metro projects in first-tier cities began to be strengthened and massive urban subway construction started. While increasing the economic input, a large amount of technical support was also put into operation. Some cities in the process of construction, due to their own geographical constraints, will encounter some very complicated geological conditions of the pebble layer in the pebble layer shield construction excavation surface stability of the subway tunnel construction has become the preferred construction However, different geological conditions require different requirements for shield face excavation stability in pebble layer. Based on the pebble layer of a subway, this paper mainly discusses the stability of shield excavation surface in the pebble layer of the subway. For my colleagues reference, one of the deficiencies, I hope counterparts more correct.