(1 中国地质大学工程学院  武汉 430074； 2 武汉地大建筑设计有限公司  430074)
【提要】  对长短粉喷桩复合地基的两种不同计算方法进行了分析，提出了长短粉喷桩复合地基的承载力和沉降计算公式。结合一个工程实例，详细介绍了长短粉喷桩复合地基的设计与施工方法，并给出了加固效果的检测方法，验证了所提计算公式的可行性。
【关键词】  长短粉喷桩  复合地基  承载力计算公式
Design Study and Engineering Application of Soft Ground Improved by Longshort DJM Piles/Zhang Meixia１,Shao Jieli２，Dong Daojun1(1 Faculty of Engineering,China University of Geosciences,Wuhan 430074,China; 2 Wuhan Dida Buildings Design Co.,Ltd.,Wuhan 430074,China)
Abstract:Two different design methods of Longshort DJM pile composite foundation are an
alysed,and  its calculation formula of bearing capacity and settlement are put forward.
Based on a real engineering, the design,construction and testing methods are introduced, and the calculation formulaes are feasible.
Keywords:longshort DJM pile；composite foundation；calculation formula of bearing capacity