Through grouting practice of design and construction,it is proved feasible and cheaper to use dam heavy curtain grouting technology for leakproof and bracing for foundation pit in the sandy gravel stratum.

• 通过一灌浆工程设计和施工实践，说明了在含水量高补给充分的砂砾卵石层中运用大坝帷幕灌浆技术进行基坑止水和支护的可行性和经济性。