饱和软土刚性长短桩复合地基——强度及变形实用计算公式

Composite foundation formed with rigid long-short-pile in saturated soft soil:practical calculation formula for strength and settlement

刚性长短桩复合地基有许多特点,如桩体均为刚性、短桩及长桩桩端为低压缩或中压缩性土等。长短桩复合地基的设计理论目前仍处于研究阶段,现行规范中尚无有关其强度及变形的具体计算方法,重点探讨了饱和软粘土体上采用刚性长短桩复合地基的强度及变形理论,并提出了适用于工程应用的实用计算方法。

The rigid long-short-pile composite foundation has a lot of special characteristics, such as rigid pile body and lower or medium compressible soil near long and short pile end. At present, the design theory of length-shortpile composite foundation remains in study, and there is no concrete method to calculate it＇s strength and settlement. This paper put forward the applicable calculation method with the emphasis on theories of the rigid lengthshort-pile composite foundation strength and settlement.