中华液晶城首期工程建筑场地稳定性评价与溶洞处理对策

Stability Analysis and Countermeasures Techniques for the Karst Cave at the Construction Site of First-phase Project in Chinese LCD City

中华液晶城首期工程场地地质条件非常复杂,岩溶发育,根据详细勘察和施工阶段勘察成果,将场地按岩溶发育程度分为3个区分别评价其稳定性,建议将塔楼调整到场地中部岩溶弱发育区,并对已发现溶洞的桩位预先进行溶洞注浆处理,实践证明该方法是正确有效的。

The engineering geological conditions of the first-phase construction site of Chinese LCD City are very complex due to karst being developed.According to the results of detailed investigation and construction stage survey,this site can be divided into three grade area based on the degree of karst development,the site stability evaluated respectively.We suggest that the tower should be located in the weak developed area of karst,and pre-grouting treatment should be taken for these pile location where karst caves have been found.The results in practice show that our proposals and measures to deal with the karst cave are correct and effective.