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1 工程概况西段村水库大坝坝基桩号自0-009～0+440强夯加固坝基是整个水库大坝工程施工的关键环节。桩号0～009～0+217表层土为 ap1Q2-2重粉质壤土。湿陷性深度在0～3.5m范围内;桩号0+217～0+440表层土为 ap1Q3-2重粉质壤土,湿陷性深度在0～6m 范围内,这两段坝基都要进行强夯处理,以改善水库蓄水后坝基的沉陷量。该段地形较为复杂,所以本段坝基强夯质量是关系整个水库蓄水后确保坝基稳定的决定性工序。
1 Project Overview Xidancun reservoir dam foundation stake from 0-009 ~ 0 + 440 tamping dam foundation dam construction is the key to the entire project. Stake 0 ~ 009 ~ 0 + 217 surface soil ap1Q2-2 heavy silty loam. Collapsible depth is in the range of 0 ~ 3.5m; Stratum 0 + 217 ~ 0 + 440 is ap1Q3-2 heavy silty loam and the collapsible depth is in the range of 0 ~ 6m, both of which are to be carried out Dynamic compaction treatment to improve the dam foundation after the reservoir impoundment. The section of the terrain is more complicated, so the dynamic compaction quality of the dam foundation is the decisive process that ensures the stability of the dam foundation after impounding the entire reservoir.