水泥粉喷桩复合地基强度检测与评价的新设想

A NEW TENTATIVE IDEAL FOR THE DETECTION AND ASSESSMENT OF THE COMPOSITE FOUNDATION STRENGTH OF CEMENT POWDER SPRAYED PILES

通过水泥粉喷桩对桩间土的吸水作用及侧限约束作用的分析．得出在水泥粉喷桩复合地基中，桩间土的承载力比原地基土的承载力有较大的提高，阐述了对桩间土进行强度检测的必要性。分析了褥垫层对桩间土承载力发挥的影响．提出了水泥粉喷桩复合地基强度评价的新设想。

By the analysis of the water absorption action and the lateral restraining action of the cement powder sprayed pile to the inter- pile soil. it concludes that the bearing capacity of the inter-pile soils is much more enchanced than that of the original foundation soils. and expounds the necessity to conduct the strength examination for the inter-pile soils. It analyzes the developed effect of the cushion layer to the bearing capacity of the inter-pile soils. Thus. it presents a new tentative ideal of the strength assessment of the cement powder sprayed pile composite foundation.