摘要
植入粘性土中的碎石桩是地基中的排水通道,它们具有加快桩周土的固结速度和增大桩周土的抗剪强度的作用。但在目前通用的振冲碎石柱和复合地基承载力计算公式中,没有计入碎石柱对桩周土的排水固结效应,这样会导致计算结果偏低。在本文中笔者试图对碎石柱和复合地基的承载力计算公式作一些修正。
Stone columns installed in clayey soils function as drainage passages. They effect to hasten the rate of consolidation and enhance the shearing strength of the surrounding soils. However, in the present calculation formulae, these drainage consolidation effects of the vibroflotation stone column to the surrounding soils have not been sufficiently considered, leading to a rather low yalue of bearing capacity of the vibroflotation stone column and the composite ground. In this paper the author tries to make some revision of these formulae.
出处
《勘察科学技术》
1990年第2期26-31,共6页
Site Investigation Science and Technology
