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一、前言近年来,在河南某钢厂的地基处理中,采用生石灰块、砂、水泥按比例混合制成的桩来处理和加固湿陷性黄土地基,取得了较好的实用效果。由这种桩与土组成的复合地基能够提高地基的承载能力,并能避免黄土湿陷性对建筑物基础的直接影响,是一种简便、经济而又实用的地基处理方法。为了取得分析、评价这种桩土复合地基的依据,受钢厂的委托,我们在某生活区勘察场地内的湿陷性黄土层上,做了三组桩土复合地基与天然地基的对比载荷试验及标贯,以及取样试验分析工作。下面就这次试验的结果,对这种桩加固地基的效果进行探
I. INTRODUCTION In recent years, in the foundation treatment of a steel plant in Henan, piles made of quick mixing lime, sand, and cement were mixed to treat and reinforce the collapsible loess foundation, and good practical results were obtained. The composite foundation composed of such piles and soil can improve the carrying capacity of the foundation, and can avoid the direct impact of loess collapsibility on the building foundation. It is a simple, economical and practical foundation treatment method. In order to obtain the basis for the analysis and evaluation of the pile-soil composite foundation, commissioned by the steel plant, we compared the three sets of pile-soil composite foundation with the natural foundation on the collapsible loess layer in a living area survey site. Test and calibration, as well as sampling test analysis. The following is the result of this experiment, explore the effect of this pile reinforcement foundation.