盾构掘进期隧洞穿越竖井段对周围土体渗流场的影响研究OACSTPCD
Influence of Tunnel Crossing the Shaft Section on the Seepage Field of Surrounding Soil during Shield Tunneling Period
为研究隧洞盾构掘进期间穿越竖井对周围土体渗流场的影响,以河南省穿沁隧洞为工程依托,建立了盾构掘进期竖井段周围土体三维渗流有限元计算模型,对比分析穿越未灌浆填实和已灌浆填实竖井段前后周围土体渗流场分布及其演变规律.结果表明:穿越竖井后相较于未穿越竖井前的竖井周围土体最大渗透坡降、单宽渗透流量分别增加了 6.00 倍和 4.29 倍,浸润面逐渐抬高,等势线更为密集;穿越已灌浆填实竖井后土体最大渗透坡降、单宽渗透流量明显降低.隧道掘进期间穿越竖井会对周…查看全部>>
In order to study the influence of tunnel crossing the shaft on the seepage field of surrounding soil during shield tunneling,the Chuanqin Tunnel in Henan Province is taken as an engineering basis,and a three-dimensional seepage finite element computational model of the soil around the shaft section during shield tunneling is established.The distributions and its evolution pattern of the seepage field of surrounding soil before and after crossing the ungrout…查看全部>>
岳潇;王旭峰;刘地福;甘磊;沈振中
山东电力工程咨询院有限公司,山东 济南 250013山东电力工程咨询院有限公司,山东 济南 250013河海大学水利水电学院,江苏 南京 210024河海大学水利水电学院,江苏 南京 210024河海大学水利水电学院,江苏 南京 210024
水利科学
竖井周围土体三维渗流分析渗流场渗透坡降单宽渗透流量
shaftsurrounding soilthree-dimensional seepage analysisseepage fieldseepage gradientunit discharge
《水力发电》 2024 (9)
30-35,6
山东电力工程咨询院有限公司科技项目(37-K2023-090)
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