黑山地区膨胀土中沉管灌注桩的桩基特性

PILE FOUNDATION PROPERTY OF VIBRO PILE IN EXPANSIVE SOIL OF HEISHAN AREA

摘要: 黑山地区膨胀土与普通粘性土不同,在该土中打设沉管灌注桩,其侧摩阻力较大,而端阻力较小。笔者在收集了大量动探及动测桩报告资料的基础上,得出了动探击数与桩侧摩阻力及桩端阻力之间相关关系的地区经验公式,并且对膨胀土中沉管灌注桩的这一桩基特性进行了分析。

Abstract: Expansive soil 'in Heishan area. is different from general clay. The lateral friction resistance is relative-1y large, while the end-bearing resistance is relatively small, when.putting vibro pipe in such soil. On the basis of collection of data from many dynamic exploration and dynamic test report on pile, the regionally empirical for-mutation showing the relation betwen dynamic exploration times and lateral friction resistance and end-bearing resistance of pile is obtained, pile foundtion propeity of such pile in expansive soil is also analyzing.