逆作法用于滇池沼泽沉积软土深基坑支护工程的研究分析

针对滇池沼泽沉积软土深基坑工程特点及其周边的环境条件，对比了多种施工方案，最终确定采用逆作法对其进行施工。对逆作法在滇池湖相沼泽沉积软土基坑工程中的应用,进行了系统分析，解决了常用桩锚支护手段所不能解决的问题，克服顺作法内支撑工期长、临时支撑消耗建筑材料多等缺点。

Study on Top-down Method for Supporting Works of Deep Foundation Pit under Sedimentary Soft Soil in Dianchi Swamp

Against the engineering characteristics of the deep foundation pit under sedimentary soft soil in Dianchi swamp and the surrounding environmental conditions and based on the comparision between various construction schemes, top-down method is adopted finally. Through the systematic analysis on the application of this method for such foundation pit in Dianchi lacustrine swamp, it is proved that it can solve the problems which can not be solved by common used pile-anchor supporting method and overcome many shortcomings of normal construction method, such as long construction period with inner support and large consumption of building materials on temporary support.