摘要
在城市核心区内低强度、高触变性、高压缩性和高含水量等淤泥质粉质黏土中进行浅埋暗挖,其地面沉降控制技术、局部涌水异常沉降处理技术和隧道内变径开挖技术是开挖支护过程中的关键控制点。因此,对某工程施工过程中所使用的土体MJS辅助加固技术进行了描述,并结合施工过程中监测的沉降数据进行分析,证明了使用该工法进行的围岩再造技术的可行性。
For shallow buried excavation in mucky silty clay with low strength,high thixotropy,high compressibility and high water content in the urban core area,the key control points in the process of excavation and support are land settlement control,treatment of local water inflow abnormal settlement and variable diameter excavation technology in the tunnel.Therefore,this paper describes the MJS(Metro Jet System) reinforcement technology used in a project,analyzes the monitored settlement data during the construction process,and reveals the feasibility of surrounding rock reconstruction technology by the above method.
作者
付顺义
Fu Shunyi(Zhejiang Tiancheng Project Management Co.,Ltd.,Hangzhou 310005,China)
出处
《市政技术》
2022年第3期124-129,共6页
Journal of Municipal Technology
关键词
浅埋暗挖
淤泥质粉质黏土
MJS辅助加固
围岩再造
shallow buried tunnel
muddy silty clay
Metro Jet System(MJS)auxiliary reinforcement
surrounding rock reconstruction
