摘要
浅埋偏压隧道洞口由于埋深较浅,且受到不平衡的围岩压力,因此往往会产生坍塌、冒顶、衬砌被拉裂等问题:论文以深汕特别合作区深东大道建设工程大山头隧道为例,通过对比明洞方案、回填暗挖方案、半明半暗进洞方案并结合数值模拟计算,对四车道超大断面隧道浅埋偏压式洞口进洞方案进行研究,具有很高的实用和借鉴价值,可以为类似项目的进洞方案提供参考和指导。
Shallow-buried unsymmetrical-loading tunnel often have problems such as collapse,roof fall,and lining rupture due to shallow burial depth and unbalanced surrounding rock pressure.This paper takes the Dashantou tunnel of the Shendong Avenue construction project in the Shenzhen-Shanwei special cooperation zone as an example.By comparing the open-cut scheme,backfilling and excavation scheme,semi-open-cut scheme,combined with numerical simulation calculation,we study the shallow-buried unsymmetrical-loading of the four-lane super-large section tunnel.It has a high practical value and reference value,and can provide reference and guidance for similar projects in the lliture.
作者
吴子瀛
WU Zi-ying(JSTIGroup,Nanjing 210019,China)
出处
《工程建设与设计》
2020年第23期221-223,共3页
Construction & Design for Engineering
关键词
超大断面
浅埋偏压
数值模拟分析
公路隧道
super-large cross-section
shallow-buried unsymmetrical-loading
numerical simulation analysis
highway tunnel
