Abstract：Research purposes: During the process of traditional excavation of support for big foundation pit, the contraction happens between the construction method and the narrow construction apace of the pile cap of cable-stayed bridge. Therefore, a reasonable and feasible construction method-SMW Construction Method is presented for the purpose of overcoming such contradiction. And based on the construction practice, this paper summarizes the application of SMW method in excavation of foundation near existing railway line.
Research conclusions: During the process of excavation of big foundation pit, the form of support for foundation pit can be flexible according to the construction conditions, and the order of the construction can be adjusted to make the construction method suitable for special construction conditions. The construction period with SMW method is shorter than those with other methods, the waste soil to be transferred is less than that with underground continuous wall, SMW method is an optional method for construction of support for foundation pit with the features of low requirement of construction space, low construction cost.
陈钧. 高水位下斜拉桥承台基坑开挖支护的设计与施工[J]. 铁道工程学报, 2008, 25(5): 49-52.
CHEN Jun. Design and Construction of Support for Excavation of Foundation Pit for Pile Cap of Cable-stayed Bridge under High Ground Water Level. 铁道工程学报, 2008, 25(5): 49-52.
2008, Vol. 25 
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