摘要
南水北调中线河北省北段输水明渠长201.9km,最大输水流量240m3/s;干渠土岩体结构分为64个工程地质段,土体结构分为黄土状砂壤土、黄土状壤土、卵石、砂性土等,存在黄土状土湿陷、高地下水位、饱和砂土地震液化、河滩地成渠,渠道渗漏、冻土等问题。根据不同地质、地形地貌情况分别进行了研究,提出了相应的设计方案和施工工艺要求,确保工程安全。
Water transfer ditch of South-North Water Transfer is 201.9km long in the north of Hebei province, maximum stream flow of 240m3/s. Rock mass of main canal is divided into 64 engineering geology sections, including such soil mass constitution as loss sand loam, loss loam, grait, noncoherent soil and etc., there are some problems of hydrocompaction loss, high groundwater level, saturation sand soil liquefaction in that erathquake happening, flood land changing into ditch, ditch leakage, frozen earth and etc.. According to different geology and landform, corresponding design plan and construction technique points are put forward, ensuring safety of projiect.
出处
《河北水利水电技术》
2004年第1期6-10,共5页
Hebei Water Resources and Hydropower Engineering
