| 拦河坝砼防渗墙的施工技术 |
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| 引用本文：曾鹏九.拦河坝砼防渗墙的施工技术[J].钻探工程,1996,(5):46-48.. Concrete Seepage Cut-off Wall Construction for a River-crossing Dam[J]. Drilling Engineering, 1996,(5):46-48. |
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| 曾鹏九 |
| 黄河水利委员会勘测规划设计院地质勘探总队 |
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| 中文摘要:拦河坝砼防渗墙多在砂层与砂卵石层上施工。地基处理根据地质条件选择，施工方法有无导孔挖槽、导孔挖槽、冲击成槽、回转钻成槽、锯槽机成槽。锯槽机为新型防渗成墙材料提供了新的施工手段，但有局限性。 |
| 中文关键词:防渗墙，挖槽方法，挖槽施工，锯槽机，清底，浇灌 |
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| Concrete Seepage Cut-off Wall Construction for a River-crossing Dam |
| Zeng Pengjiu |
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| Abstract:The seepage cut -off wall for the river-crossing dam is usually installed in the sand and the sandy gravel. The dam site treatment depends on the geological conditions and the construction methods include trench-cutting without pilot hole, trench-cutting with pilot hole, percussive trenching, rotsry trenching and trenching by trench saw. The trench saw provides a new construction method for the new seepage cut-off walling material, but has its limitation. |
| keywords:seepage cut-off wall trench-cutting method trench saw bottom cleaning concreting |
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