A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-seepage structure for homogeneous earth dam heightening project and construction method
The invention discloses an anti-seepage structure for a homogeneous earth dam heightening project and a construction method. The anti-seepage structure comprises an anti-seepage layer for heightening the upstream slope surface of the rear dam body, inclined grouting curtains on the left bank and the right bank, an anti-seepage film connecting abutment at the upstream dam foot position, dam foundation grouting galleries on the two sides of the river valley, an anti-seepage wall below the abutment and a grouting curtain. The galleries are used for construction of vertical grouting curtain grouting pipes on two banks of the dam foundation; and the abutment is used for connecting the anti-seepage structure below the dam foundation with the geomembrane. The homogeneous earth dam heightening project anti-seepage structure has the advantages that the flexibility is good, and the construction is flexible; the geomembrane is embedded and connected at the periphery, so that the connecting part of the geomembrane and the grouting curtain is not easy to crack and seep water; the river valley form is fully considered, the inclined grouting curtain and the vertical grouting curtain are adopted to form an anti-seepage structure, and the anti-seepage effect of the heightened dam is enhanced.
本发明公开了一种用于均质土坝加高工程的防渗结构及施工方法。所述的防渗结构包括加高后坝体上游坡面的防渗层、左岸与右岸的倾斜注浆帷幕、上游坝脚位置的防渗膜连接墩台及河谷两侧的坝基注浆廊道、墩台下方的防渗墙和注浆帷幕。廊道用于坝基两岸竖向注浆帷幕注浆管施工；墩台用于坝基以下防渗结构与土工膜的连接。本发明的均质土坝加高工程防渗结构具有柔性好，施工灵活；土工膜在四周边的嵌入连接使其与注浆帷幕连接部位不易开裂渗水；充分考虑河谷形态，采用倾斜注浆帷幕和竖向注浆帷幕构成防渗结构，增强了加高后大坝的防渗效果。
Anti-seepage structure for homogeneous earth dam heightening project and construction method
The invention discloses an anti-seepage structure for a homogeneous earth dam heightening project and a construction method. The anti-seepage structure comprises an anti-seepage layer for heightening the upstream slope surface of the rear dam body, inclined grouting curtains on the left bank and the right bank, an anti-seepage film connecting abutment at the upstream dam foot position, dam foundation grouting galleries on the two sides of the river valley, an anti-seepage wall below the abutment and a grouting curtain. The galleries are used for construction of vertical grouting curtain grouting pipes on two banks of the dam foundation; and the abutment is used for connecting the anti-seepage structure below the dam foundation with the geomembrane. The homogeneous earth dam heightening project anti-seepage structure has the advantages that the flexibility is good, and the construction is flexible; the geomembrane is embedded and connected at the periphery, so that the connecting part of the geomembrane and the grouting curtain is not easy to crack and seep water; the river valley form is fully considered, the inclined grouting curtain and the vertical grouting curtain are adopted to form an anti-seepage structure, and the anti-seepage effect of the heightened dam is enhanced.
本发明公开了一种用于均质土坝加高工程的防渗结构及施工方法。所述的防渗结构包括加高后坝体上游坡面的防渗层、左岸与右岸的倾斜注浆帷幕、上游坝脚位置的防渗膜连接墩台及河谷两侧的坝基注浆廊道、墩台下方的防渗墙和注浆帷幕。廊道用于坝基两岸竖向注浆帷幕注浆管施工；墩台用于坝基以下防渗结构与土工膜的连接。本发明的均质土坝加高工程防渗结构具有柔性好，施工灵活；土工膜在四周边的嵌入连接使其与注浆帷幕连接部位不易开裂渗水；充分考虑河谷形态，采用倾斜注浆帷幕和竖向注浆帷幕构成防渗结构，增强了加高后大坝的防渗效果。
Anti-seepage structure for homogeneous earth dam heightening project and construction method
用于均质土坝加高工程的防渗结构及施工方法
LUO HAIDONG (author) / TANG BO (author) / LI JIN (author) / CAO JIANJUN (author) / QIU DEJUN (author) / ZHONG JINGWEN (author) / ZHOU YANG (author) / QIU QIANYONG (author) / MENG SONGSONG (author) / ZHANG HENG (author)
2023-04-04
Patent
Electronic Resource
Chinese
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