一种新的灌浆方法在深古河槽帷幕灌浆中的应用  

Application of A New Grouting Method in Curtain Grouting of Deep Ancient Channel

作　　者：李泽鑫 LI Ze-xin(Xinjiang Institute of Water&Hydropower Engineering Investigation,Design and Research,Urumqi 830000,China)

机构地区：[1]新疆水利水电勘测设计研究院有限责任公司,新疆乌鲁木齐830000

出　　处：《云南水力发电》2022年第11期164-168,共5页Yunnan Water Power

摘　　要：新疆大石门水库工程古河槽深厚覆盖层厚度达238m,地层结构较为复杂,在238m深砂卵砾石层中进行帷幕灌浆,国内设计与施工经验很少,传统的灌浆方法成本高、功效低、灌浆效果差。通过现场帷幕灌浆试验,找出了一套适合于大石门水库工程238m深厚砂卵砾石层的灌浆方法,即“填料护壁孔口封闭灌浆法”。该方法在施工工效、施工成本、地层适应性、灌浆效果上取得了较好的成效,为主体帷幕灌浆施工提供了可靠依据。The thick overburden of the paleochannel of Dashimen Reservoir Project in Xinjiang is 238m thick and the stratum structure is complicated.There is little experience in domestic design and construction of curtain grouting in 238m deep sand and gravel layer.Traditional grouting methods are characterized by high cost,low efficiency and poor grouting effect.Through field curtain grouting test,a set of grouting method suitable for 238m thick sand and gravel layer in Dashimen Reservoir Project is found,which is called Closed Grouting Method for Filling Wall Protection Orifice.This method has achieved good results in construction efficiency,construction cost,stratum adaptability and grouting effect,and provides reliable basis for the main curtain grouting construction.

关 键 词：新的灌浆方法 填料护壁孔口封闭灌浆法 深厚砂砾石覆盖层 帷幕灌浆 

分 类 号：TV543[水利工程—水利水电工程]