干振碎石桩的特性和设计计算研究

干振碎石桩的特性和设计计算研究 English Version

摘要: 本文阐述干振碎石桩复合地基提高承载力的主要原因是桩间土的振密和挤土作用。通过试验还揭示了这种地基的应力传递规律、有效桩长、护桩的作用、复合地基承载力与置换率的关系等。根据干振碎石柱的特性建立了其承载力和沉降计算方法，该方法计算结果与实际相一致，可以在工程中采用。
- 干振碎石柱 /
- 挤土作用 /
- 桩体作用 /
- 应力传递 /
- 有效桩长 /
- 护桩
Abstract: n this paper, the reason for improving bearing capacity of dry-vibro stone column is given. By means of experimental study, the law of stress transfer, effective column length, effect of protact column, and the relation between bearing capacity of composite foundation and replacement ratio of stone column are described.The method of caculating bearing capacity and settlement is found in according with the properties of dry-vibro stone column. The calculated result by this methodis satisfactory with practice and it can be used in engineering practice.
- dry-vibro stone column /
- effect of soil compaction /
- effect of column /
- stress transfer /
- effective column length /
- protect column.