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A platform for research: civil engineering, architecture and urbanism
Construction method for dam anti-seepage curtain grouting
The invention discloses a construction method for dam anti-seepage curtain grouting, and relates to the technical field of water conservancy and hydropower engineering.According to the construction method for curtain grouting, construction is conducted according to the principle of sequential densification, a segmented construction method is planned to be adopted, in the same unit, after first-order holes are constructed to be 15 m below bedrock, later-order holes can be constructed, and the next-order holes can be constructed after the first-order holes are constructed to be 15 m below bedrock; the method specifically comprises the steps of pilot hole segmented drilling and coring, water pressing, grouting and hole sealing, first-stage sequential hole segmented drilling, water pressing, grouting and imbedding, second-stage sequential hole segmented drilling, water pressing, grouting and imbedding, third-stage sequential hole segmented drilling, water pressing, grouting and imbedding, quality inspection hole drilling and coring, segmented water pressing and full-hole grouting and hole sealing. The dam anti-seepage curtain grouting construction method has the remarkable beneficial effects in the aspects of guaranteeing the anti-seepage performance of the dam, improving the construction efficiency, ensuring the engineering quality and long-term stable operation and the like, provides a solid guarantee for safe and reliable operation of a water conservancy project, and has important economic, social and environmental benefits.
本发明公开了一种大坝防渗帷幕灌浆的施工方法，涉及水利水电工程技术领域，所述帷幕灌浆的施工方法按分序加密的原则进行施工，拟采用分段施工的方法，同一单元内先序孔施工至基岩以下15m后可施工后一次序孔，具体程序包括：先导孔分段钻孔取芯、压水、灌浆、封孔→第一阶段序孔分段钻孔、压水、灌浆、镶铸→第二阶段序孔分段钻孔、压水、灌浆、镶铸→第三阶段序孔分段钻孔、压水、灌浆、镶铸→质量检查孔钻孔取芯、分段压水、全孔灌浆封孔。本发明的大坝防渗帷幕灌浆施工方法在保障大坝防渗性能、提高施工效率、确保工程质量和长期稳定运行等方面具有显著的有益效果，为水利工程的安全可靠运行提供了坚实的保障，具有重要的经济、社会和环境效益。
Construction method for dam anti-seepage curtain grouting
The invention discloses a construction method for dam anti-seepage curtain grouting, and relates to the technical field of water conservancy and hydropower engineering.According to the construction method for curtain grouting, construction is conducted according to the principle of sequential densification, a segmented construction method is planned to be adopted, in the same unit, after first-order holes are constructed to be 15 m below bedrock, later-order holes can be constructed, and the next-order holes can be constructed after the first-order holes are constructed to be 15 m below bedrock; the method specifically comprises the steps of pilot hole segmented drilling and coring, water pressing, grouting and hole sealing, first-stage sequential hole segmented drilling, water pressing, grouting and imbedding, second-stage sequential hole segmented drilling, water pressing, grouting and imbedding, third-stage sequential hole segmented drilling, water pressing, grouting and imbedding, quality inspection hole drilling and coring, segmented water pressing and full-hole grouting and hole sealing. The dam anti-seepage curtain grouting construction method has the remarkable beneficial effects in the aspects of guaranteeing the anti-seepage performance of the dam, improving the construction efficiency, ensuring the engineering quality and long-term stable operation and the like, provides a solid guarantee for safe and reliable operation of a water conservancy project, and has important economic, social and environmental benefits.
本发明公开了一种大坝防渗帷幕灌浆的施工方法，涉及水利水电工程技术领域，所述帷幕灌浆的施工方法按分序加密的原则进行施工，拟采用分段施工的方法，同一单元内先序孔施工至基岩以下15m后可施工后一次序孔，具体程序包括：先导孔分段钻孔取芯、压水、灌浆、封孔→第一阶段序孔分段钻孔、压水、灌浆、镶铸→第二阶段序孔分段钻孔、压水、灌浆、镶铸→第三阶段序孔分段钻孔、压水、灌浆、镶铸→质量检查孔钻孔取芯、分段压水、全孔灌浆封孔。本发明的大坝防渗帷幕灌浆施工方法在保障大坝防渗性能、提高施工效率、确保工程质量和长期稳定运行等方面具有显著的有益效果，为水利工程的安全可靠运行提供了坚实的保障，具有重要的经济、社会和环境效益。
Construction method for dam anti-seepage curtain grouting
一种大坝防渗帷幕灌浆的施工方法
ZHAO XINGBIN (author) / ZOU ZHIYI (author) / HAN PU (author)
2024-12-10
Patent
Electronic Resource
Chinese
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