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A platform for research: civil engineering, architecture and urbanism
Clay core wall dam structure and construction method thereof
The invention provides a clay core wall dam structure and a construction method thereof. The clay core wall dam structure comprises a foundation pit, wherein the foundation pit is deep to bedrock, a grouting gallery is arranged at the bottom of the foundation pit, and curtain grout is arranged at the bottom of the grouting gallery; a seepage prevention wall is arranged between the grouting galleryand a clay core wall, a water stop structure is arranged between the seepage prevention wall and the grouting gallery, the foundation pit is filled with rockfill in a backfilling mode, and the elevation of the seepage prevention wall is higher than that of a rockfill backfilling area; the clay core wall is built above the rockfill backfilling area, and the bottom of the clay core wall is connected with the seepage prevention wall; and rockfill structures of a dam are arranged outside the water-facing side and the backwater side of the clay core wall, and the rockfill structures of the dam arepiled on the foundation pit rockfill backfill area. According to the clay core wall dam structure and the construction method thereof, the rockfill material is backfilled in the deep foundation pit,the concrete seepage prevention wall is arranged for preventing seepage, the clay core wall dam is arranged at the upper part of the rockfill, the construction of the rockfill backfilled in the deep foundation pit is not limited by rainy seasons, the construction progress can be accelerated, and the problem of flood control in rainy seasons of the deep foundation pit is solved.
本发明了提供一种粘土心墙坝结构及其施工方法，包括基坑，所述基坑深至基岩，基坑底部设置灌浆廊道，灌浆廊道的底部设置帷幕灌浆；在灌浆廊道至粘土心墙之间设置防渗墙，在防渗墙和灌浆廊道至之间设置止水结构，所述基坑用堆石回填填满，防渗墙的高程高于堆石回填区；粘土心墙建筑在堆石回填区之上，粘土心墙的底部与防渗墙相接；所述粘土心墙的迎水侧和背水侧外设置坝的堆石结构，坝的堆石结构堆筑在基坑堆石回填区之上。本发明采用在深基坑内部回填堆石料，并设置混凝土防渗墙进行防渗，堆石上部设置粘土心墙坝，基坑内回填的堆石施工不受雨季限制，可加快施工进度，并解决深基坑雨季度汛难题。
Clay core wall dam structure and construction method thereof
The invention provides a clay core wall dam structure and a construction method thereof. The clay core wall dam structure comprises a foundation pit, wherein the foundation pit is deep to bedrock, a grouting gallery is arranged at the bottom of the foundation pit, and curtain grout is arranged at the bottom of the grouting gallery; a seepage prevention wall is arranged between the grouting galleryand a clay core wall, a water stop structure is arranged between the seepage prevention wall and the grouting gallery, the foundation pit is filled with rockfill in a backfilling mode, and the elevation of the seepage prevention wall is higher than that of a rockfill backfilling area; the clay core wall is built above the rockfill backfilling area, and the bottom of the clay core wall is connected with the seepage prevention wall; and rockfill structures of a dam are arranged outside the water-facing side and the backwater side of the clay core wall, and the rockfill structures of the dam arepiled on the foundation pit rockfill backfill area. According to the clay core wall dam structure and the construction method thereof, the rockfill material is backfilled in the deep foundation pit,the concrete seepage prevention wall is arranged for preventing seepage, the clay core wall dam is arranged at the upper part of the rockfill, the construction of the rockfill backfilled in the deep foundation pit is not limited by rainy seasons, the construction progress can be accelerated, and the problem of flood control in rainy seasons of the deep foundation pit is solved.
本发明了提供一种粘土心墙坝结构及其施工方法，包括基坑，所述基坑深至基岩，基坑底部设置灌浆廊道，灌浆廊道的底部设置帷幕灌浆；在灌浆廊道至粘土心墙之间设置防渗墙，在防渗墙和灌浆廊道至之间设置止水结构，所述基坑用堆石回填填满，防渗墙的高程高于堆石回填区；粘土心墙建筑在堆石回填区之上，粘土心墙的底部与防渗墙相接；所述粘土心墙的迎水侧和背水侧外设置坝的堆石结构，坝的堆石结构堆筑在基坑堆石回填区之上。本发明采用在深基坑内部回填堆石料，并设置混凝土防渗墙进行防渗，堆石上部设置粘土心墙坝，基坑内回填的堆石施工不受雨季限制，可加快施工进度，并解决深基坑雨季度汛难题。
Clay core wall dam structure and construction method thereof
一种粘土心墙坝结构及其施工方法
WANG DONGLIANG (author) / XIONG YANMEI (author) / LIU XIJUN (author) / CHEN ZHENWEN (author) / HAN HUACHAO (author) / SUN LAI (author) / ZHU HE (author)
2020-06-23
Patent
Electronic Resource
Chinese
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