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.
出处
《河北工程大学学报（自然科学版）》
CAS
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)
关键词
泥水盾构
泥膜
压力差
泥浆消耗量
slurry shield
filter cake
pressure gap
slurry consumption
