压力差对盾构施工形成泥膜所需泥浆量的影响  

Pressure gap's affect to slurry consumption in slurry shield construction

作　　者：杜雪山 王奇[1] 朱东元 

机构地区：[1]河海大学土木与交通学院,江苏南京210098

出　　处：《河北工程大学学报（自然科学版）》2016年第4期39-41,46,共4页Journal of Hebei University of Engineering:Natural Science Edition

基　　金：国家自然科学基金资助项目(51378176)

摘　　要：采用泥水盾构施工,进行带压开仓时,通常采用泥膜闭气的方法来平衡开挖面后部的土水压力。这就需要在掌子面表面形成一层泥膜,从而达到闭气的目的。本文通过采用自制的泥膜闭气装置,在实验室内开展了不同压力差下形成泥膜的试验。试验表明,当形成泥膜时,泥浆消耗量随着压力差的增大而减小。In slurry shield construction, opening a chamber under compressed air is usually needed. To ensure the stability of excavation face in slurry shield, a pressed filter cake must be formed on the working face. In this paper, a new test apparatus was developed to study the airproof capability of a filter cake under varied pressure difference. Test results indicate that when the argitan was formed, the slurry consumption reduces along with the pressure difference growth.

关 键 词：泥水盾构 泥膜 压力差 泥浆消耗量 

分 类 号：TU753.7[建筑科学—建筑技术科学]