平底探头下的静力触探试验

Static Penetration Test with Flat-Bottomed Probe

通过改变探头，即把原来的锥形探头变为平底探头，使探头的应力形式有较大的改变，从而更接近地基基础的工作环境，更直观的模拟地基基础应力变化。这不仅为原位测试提供了一种新的方法，同时由于采用了平底探头，经过进一步改进，可近似地进行载荷试验，或对土样进行室内的力学模拟试验。通过这种一系列的试验，可逐渐找出原位测试与室内力学试验的一些相关的因素，建立相关的关系。这对于研究土的物理力学性质有重要的现实意义。

Static penetration tests with flat-bottomed probes provide a new method for in-situ testing.With flat-bottomed probes,loading tests can be approximately conducted,and laboratory scale-down tests for mechanical characters of soil samples can also be conducter.Through these sets of tests,this paper presents some factors which relate in-situ tests with laboratory tests and establishes related relationship between them.