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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。
The analysis of the water absorption and lateral confinement of soil between piles by cement powder jet piles. It is concluded that the bearing capacity of soil between piles in the composite foundation of cement powder jet piles is greater than that of the original soil, and the necessity of strength testing between piles is demonstrated. Analyzes the influence of the cushion layer on the bearing capacity of soil between piles. A new idea for the evaluation of the strength of composite foundation with cement powder jet piles was proposed.