摘要
山西省中部引黄工程水源工程位于山西省忻州市保德县天桥泉域排泄带,前期地质勘查资料显示天桥泉域排泄带单井(潜孔)涌水量大于3000 m^(3)/d,为极富水区域[1],在此区域施工大型地下洞室将面临泉域持续大涌水,施工难度较大,安全风险高,在底板钢支撑加固系统下采用止水帷幕、固结灌浆处理隧洞底板较大涌水能够达到预期堵水效果。
The water source project of CentralShanxi Yellow River Diversion Project is located in Tianqiao Spring Drainage Zone of Baode County,Xinzhou,Shanxi Province.The preliminary geological exploration data shows that the water inflow of a single well(underground hole)in Tianqiao Spring Drainage Zone is greater than 3000m?/d,making it an extremely water rich area.The construction of large underground caverns in this area will face continuous water gushing from the spring area,making construction difficult and posing high safety risks.The use of water stop curtains and consolidation grouting under the steel support reinforcement system of the bottom plate can achieve the expected water blocking effect when dealing with large water inrush in the tunnel bottom plate.
作者
胡传安
万新
HU Chuan-an;WAN Xin(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)
出处
《云南水力发电》
2023年第9期242-245,共4页
Yunnan Water Power
关键词
天桥泉域排泄带
地下洞室
大涌水
堵水施工
Tianqiao Spring Drainage Zone
underground cavern
water gushing
water blocking construction
