土-岩复合地层分类及盾构施工工程特性分析

Classification of Soil-Rock Mixed Strata and Analysis of Engineering Characteristics of Shield Tunnelling

针对土-岩复合地层的物理力学特性,结合穿越此类地层的盾构施工具体工程实例,对土-岩复合地层进行分类,分析土-岩复合地层的地质条件和盾构施工力学机理,阐述土-岩复合地层盾构施工开挖面失稳的现象和特点,为土-岩复合地层盾构施工开挖面稳定控制的研究确定对象,提供现象与工程认识。

Aiming at the physical and mechanical characteristics of soil-rock mixed strata,the classification of soil-rock mixed strata is conducted,the geological conditions of the soil-rock mixed strata and the mechanical mechanism of shield tunnelling are analyzed based on the actual cases of shield tunnelling.The phenomenon and characteristics of excavation face instability of shield tunnelling in soil-rock mixed strata are described,providing the phenomenon and engineering understanding for the research on the stability control of shield tunnel face in soil-rock mixed strata.