不利环境因素影响下地连墙自稳性能研究

Study on Self-stability of Diaphragm Wall under the Influence of Unfavorable Environmental Factors

以苏州市轨道交通S1线金融街站为工程背景,从大量的施工实践中发现了设计并未考虑而施工中又极有可能会出现的对地连墙造成不利影响几个因素,先对其先从理论上论证这几个因素的不利性,再计算不利因素对下地连墙位移、强度和基坑失稳造成的具体影响,最后对不利因素下出现的险情提出了有针对性解决措施,有效提高了现场应急处置能力。

Taking the Financial Street Station on the S1 line of Suzhou Rail Transit as the engineering background,several factors which are not taken into account in design and which are likely to occur in construction have been found to adversely affect the diaphragm wall in a large number of construction practices,first,the disadvantages of these factors are theoretically proved,and then the concrete effects of the disadvantageous factors on the displacement,strength and instability of the foundation pit are calculated,at last,the corresponding measures are put forward to solve the dangerous situation under the disadvantageous factors,and the emergency handling capacity is effectively improved.