Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-seepage grouting method for covering layer of water storage dam foundation
The invention discloses an anti-seepage grouting method for a covering layer of a water storage dam foundation. The anti-seepage grouting method comprises the steps that S1, three rows of grouting holes are formed in the covering layer of the dam foundation; S2, flowing water dispersion resistant grout is poured into the downstream row grouting holes in a segmented mode, and the grout is re-poured till the normal operation is finished; S3, the cellulose paste slurry and the cement-water glass quick-setting slurry are poured into the upstream row grouting holes in a segmented mode, and the slurry is re-poured till the normal operation is finished; and S4, cement bentonite stabilizing grout or cement paste is poured into the grouting holes in the middle row in a segmented mode. According to the anti-seepage grouting method, grouting treatment can be conducted on dam foundation covering layer leakage under the water storage condition, the problems that conventional cement grout is diluted and dispersed by flowing water due to poor flowing water flushing resistance, grouting is difficult to form a curtain for seepage prevention due to water flow flushing loss, and the grout consumption amount is large are solved, the dam foundation seepage prevention purpose is achieved, the construction cost is saved, and the influence of leakage treatment on power generation, water resource utilization and the like of the reservoir is avoided.
本发明公开了一种蓄水坝基覆盖层防渗灌浆方法，包括步骤一：在坝基覆盖层中布置三排灌浆孔；步骤二：向下游排灌浆孔分段灌注抗动水分散浆液，并复灌水泥浆至正常结束；步骤三：向上游排灌浆孔分段灌注纤维素膏状浆液和水泥水玻璃速凝浆液，并复灌水泥浆至正常结束；步骤四：向中间排灌浆孔分段灌注水泥膨润土稳定浆液或水泥浆。本发明能在蓄水条件下对坝基覆盖层渗漏进行灌浆处理，解决了常规水泥浆液抗动水冲释性差而被流水稀释分散、水流冲失以致灌浆难以成幕防渗以及耗浆量极大的难题，达到了坝基防渗的目的，节约了施工成本，避免了因渗漏处理而影响水库的发电、水资源利用等。
Anti-seepage grouting method for covering layer of water storage dam foundation
The invention discloses an anti-seepage grouting method for a covering layer of a water storage dam foundation. The anti-seepage grouting method comprises the steps that S1, three rows of grouting holes are formed in the covering layer of the dam foundation; S2, flowing water dispersion resistant grout is poured into the downstream row grouting holes in a segmented mode, and the grout is re-poured till the normal operation is finished; S3, the cellulose paste slurry and the cement-water glass quick-setting slurry are poured into the upstream row grouting holes in a segmented mode, and the slurry is re-poured till the normal operation is finished; and S4, cement bentonite stabilizing grout or cement paste is poured into the grouting holes in the middle row in a segmented mode. According to the anti-seepage grouting method, grouting treatment can be conducted on dam foundation covering layer leakage under the water storage condition, the problems that conventional cement grout is diluted and dispersed by flowing water due to poor flowing water flushing resistance, grouting is difficult to form a curtain for seepage prevention due to water flow flushing loss, and the grout consumption amount is large are solved, the dam foundation seepage prevention purpose is achieved, the construction cost is saved, and the influence of leakage treatment on power generation, water resource utilization and the like of the reservoir is avoided.
本发明公开了一种蓄水坝基覆盖层防渗灌浆方法，包括步骤一：在坝基覆盖层中布置三排灌浆孔；步骤二：向下游排灌浆孔分段灌注抗动水分散浆液，并复灌水泥浆至正常结束；步骤三：向上游排灌浆孔分段灌注纤维素膏状浆液和水泥水玻璃速凝浆液，并复灌水泥浆至正常结束；步骤四：向中间排灌浆孔分段灌注水泥膨润土稳定浆液或水泥浆。本发明能在蓄水条件下对坝基覆盖层渗漏进行灌浆处理，解决了常规水泥浆液抗动水冲释性差而被流水稀释分散、水流冲失以致灌浆难以成幕防渗以及耗浆量极大的难题，达到了坝基防渗的目的，节约了施工成本，避免了因渗漏处理而影响水库的发电、水资源利用等。
Anti-seepage grouting method for covering layer of water storage dam foundation
一种蓄水坝基覆盖层防渗灌浆方法
FENG YANGWEN (Autor:in) / ZANG PENG (Autor:in) / ZHANG YONGQUAN (Autor:in) / ZHONG JIU'AN (Autor:in) / LI QIAOBIN (Autor:in) / TAN BAOBAO (Autor:in) / PENG YONG (Autor:in) / LIU QIFANG (Autor:in) / MA GUOQIANG (Autor:in) / XIONG DEJUN (Autor:in)
25.05.2021
Patent
Elektronische Ressource
Chinesisch
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