论文部分内容阅读
采用常规的钻探、取土和土工试验测定土的工程性质参数,在当前的工程勘察中仍是最基本的勘察手段。钻探方法、取样方法、取土器结构、土样的运输和储存、试样的制备、土工仪器的结构及试验方法等,都对测定土的参数有影响。本文只从取“原状土样”这一环节,分析研究以下两个问题:(1)取土器压入土中对土产生的扰动;(2)应力释放对土样的影响。
The use of conventional drilling, earth taking and geotechnical tests to determine the engineering properties of soil is still the most basic survey method in the current engineering survey. Drilling methods, sampling methods, earth picker structures, transport and storage of soil samples, sample preparation, geotechnical instrument structure, and test methods all have an impact on the determination of soil parameters. This article only analyzes and studies the following two problems from the aspect of taking the “undisturbed soil sample”: (1) disturbance of the earth pressure generated by the earth borrower into the earth; (2) the effect of stress release on the soil sample.