北京第三系粘土岩的工程特性研究  

Engineering properties of the Tertiary mudstone in Beijing

作　　者：陈爱新[1] 

机构地区：[1]北京市勘察设计研究院有限公司,北京100038

出　　处：《工程勘察》2009年第1期28-30,共3页Geotechnical Investigation & Surveying

摘　　要：在北京市区西部工程建设中常遇到第三系粘土岩,特殊的成岩历史和成岩作用使其具有独特的工程特性。本文以第三系粘土岩的现场观测及室内试验结果为基础,研究了第三系粘土岩的地质特征、物理力学性质,并对其环境影响效应及开挖条件下强度的变化进行了分析,提出基坑施工时应采取适时快速开挖、快速封闭和围(支)护的处理方法。研究结果对工程建设具有一定参考价值。The Tertiary mudstone is often found in the west urban construction of Beijng, which has the unique engineering property due to the specific diagenetic history and lithogenesis. Based on the site observation and the test results in the laboratory, the engineering geological features and the physical and mechanical properties of the Tertiary mudstone are studied, and the engineering-environmental effects and the strength variation in the condition of the excavation are analyzed.It is suggested that the fast excavation,sealing and retaining should properly be taken.The study results could give some construction references for the engineering projects in the area of Beijing.

关 键 词：粘土岩 工程特性 工程环境效应 

分 类 号：TU458[建筑科学—岩土工程]