某邻近河道深基坑止水处理技术  

Water-resistance Technology of Some Deep Foundation Excavation Near the River

作　　者：李家涛[1] 胡长明[1] 张文萃[1] 赵楠[1] 梅源[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《施工技术》2014年第1期67-70,共4页Construction Technology

基　　金：陕西省科技攻关计划(2011K10-20);包头市科技计划项目(2011X1006)

摘　　要：邻近河道深基坑工程施工技术的关键是止水处理,结合沿海地区某工程实例,提出了一种新型的邻近河道深基坑两道止水技术及其布置形式与施工要点。通过现场监测得出:两道止水技术能够很好满足邻近河道深基坑止水要求,其中隔水帷幕不仅可以维持土体的稳定,而且能够提高邻近河道地下连续墙的施工质量,二者相互配合,能够较好地增强地基的承载力,从而保证深基坑施工过程中的安全稳定。The key of the deep foundation excavation construction near the river is the water-resistance treatment. Combined with a project in coastal areas, authors put forward the layout form and construction key points of two water-resistance processes in the deep foundation excavation near the river. By analyzing the data of field test, it can be concluded that the effect of two water stop processes is obvious. The water-resistance curtain can on the one hand maintain the stability of the soil, on the other hand improve the construction quality of diaphragm wall near the river..They can enhance the bearing capacity of foundation better and ensure the security and stability in the process of deep foundation excavation construction.

关 键 词：地铁车站 深基坑 河道 隔水帷幕 高压旋喷桩 施工技术 

分 类 号：TU753[建筑科学—建筑技术科学]