Application of Grouting Technology in City Excavation Engineering
NAN Chen 1，ZHANG Min-qing 2
1. Hangzhou Company, China Railway Tunnel Group Co. Ltd, Hangzhou, Zhejiang 310030, China; 2. YiWang Headquarters of Managing of Works of Railway Ministry, Enshi, Hubei 445000，China
Abstract：Research purposes: Ground water is an important influence factor to excavation engineering and grouting technology is an effective method to father ground water. Therefore, grouting technology is an imperative assistant method to excavation engineering. By the example of the engineering, this paper researches grouting technology of city excavation engineering.
Research methods: By the engineering example，this paper researches parameter, technique and effect standard of grouting technology.
Research results: In the excavation engineering construction, we can assure safety in construction of pile. By grouting midst pile out enclosing,*can assure safety认construction of excavation construction. When the excavation work to water structure, we can prevent water burst and bulge out of the fondue through making the grouting water stop purdah on the fondue. After the excavation is finished, there usually exists more or less leakage water middle the pile sod we increase water stop standard and reduce the pump water charge through fathering the leakage water of the pile middle.
Research conclusions: This paper systemically summarizes and studies grouting technology of excavation engineering through engineering example, and puts forward the inspection items and standards of grouting effect.
2007, Vol. 24 
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