中文摘要：

受风化环境和成因的影响,未经水平运移的残积土结构性较强,扰动取样后的室内试验无法真实反映残积土的力学性能。在贵州玄武岩地区进行了原位旁压试验、动力触探和高密度电法试验,分析得到了残积土的原位力学参数的空间分布特征。试验结果表明：水平旁压模量EH与竖直旁压模量EV差值在15%左右,两方向的旁压模量相关性较好;该残积土边坡不同位置同一深度处力学参数差别较大;旁压试验所推算的旁压模量Em及地基承载力fk等参数在垂向上均随深度增加逐渐增大;通过高密度电法与旁压试验的对比,可在一定程度上了解残积土边坡力学参数的空间分布;将动力触探击数与旁压试验推算的地基承载力作对比,得出了该地区动力触探击数推算地基承载力的经验公式。

英文摘要：

Owing to the influence of different weathering environment, the residual solt is of me strong structural, which could influence the mechanical properties of the soil in the laboratory tests. A number of in-situ soil tests such as the pressuremeter tests, the dynamic penetration tests and the high-density resistivity survey have been carried out to get the regularity of the field mechanical properties. The results show that the difference of EH and Ev is about 15% , and they have the good relativity of the pressuremeter modulus in two directions; the mechanical properties of the soil in same depth are of the great difference; the Emand fk calculated from the pressuremeter tests increase with the depth; through the comparison with high-density resistivity survey and the pressuremeter tests, the distribution characteristics of the mechanical properties can be understood; through the comparison with the dynamic penetration tests and the pressuremeter tests, the empirical equation of dynamic penetration tests for this area is obtained.