A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a treatment method for crack leakage in a transition section of a water intake tunnel of a hydropower station, and relates to the technical field of leakage treatment of waterintake tunnels of hydropower stations. The treatment method comprises the steps that firstly, a hole is drilled to penetrate through a reinforced concrete lining structure, a grouting needle is buried, a grouting pipeline is led out to a water inlet platform, and flat-pressing chemical grouting is carried out; and then cement grout is distributed on the periphery of the lining structure of the transition section of a water inlet to reinforce and reinforce a leakage channel. Good construction conditions are effectively created for subsequent cement reinforcing grouting by adopting flat-pressingchemical grouting; the construction environment is improved through flat-pressing chemical grouting, and the safety risk caused by rising of the reservoir water level in the construction process is effectively avoided; through flat-pressing chemical grouting, the construction time is effectively saved, and the situation that normal production of the power station is affected due to long-term flatpressing of the water intake tunnel is avoided; and cement reinforcing grouting is carried out, the leakage channel is further comprehensively blocked, and a good foundation is laid for long-term safe and stable operation of the water intake tunnel.
本发明公开了一种水电站引水洞渐变段裂缝渗漏治理方法，涉及水电站引水洞渗漏治理技术领域。所述治理方法首先钻孔穿透钢筋混凝土衬砌结构，埋设注浆针头，将灌浆管路引出至进水口平台，进行平压化学灌浆；然后在进水口渐变段衬砌结构周边布设水泥灌浆对渗漏通道进行补强加固。通过采取平压化学灌浆有效为后续水泥补强灌浆创造了良好的施工条件；平压化学灌浆改善了施工环境，有效解决了施工过程中，因库水位上升带来的安全风险；通过平压化学灌浆，有效节约施工时间，避免引水洞需长期保持平压，影响电站正常生产；水泥补强灌浆，进一步对渗漏通道进行全面封堵，为引水洞长期安全稳定运行，奠定了良好的基础。
The invention discloses a treatment method for crack leakage in a transition section of a water intake tunnel of a hydropower station, and relates to the technical field of leakage treatment of waterintake tunnels of hydropower stations. The treatment method comprises the steps that firstly, a hole is drilled to penetrate through a reinforced concrete lining structure, a grouting needle is buried, a grouting pipeline is led out to a water inlet platform, and flat-pressing chemical grouting is carried out; and then cement grout is distributed on the periphery of the lining structure of the transition section of a water inlet to reinforce and reinforce a leakage channel. Good construction conditions are effectively created for subsequent cement reinforcing grouting by adopting flat-pressingchemical grouting; the construction environment is improved through flat-pressing chemical grouting, and the safety risk caused by rising of the reservoir water level in the construction process is effectively avoided; through flat-pressing chemical grouting, the construction time is effectively saved, and the situation that normal production of the power station is affected due to long-term flatpressing of the water intake tunnel is avoided; and cement reinforcing grouting is carried out, the leakage channel is further comprehensively blocked, and a good foundation is laid for long-term safe and stable operation of the water intake tunnel.
本发明公开了一种水电站引水洞渐变段裂缝渗漏治理方法，涉及水电站引水洞渗漏治理技术领域。所述治理方法首先钻孔穿透钢筋混凝土衬砌结构，埋设注浆针头，将灌浆管路引出至进水口平台，进行平压化学灌浆；然后在进水口渐变段衬砌结构周边布设水泥灌浆对渗漏通道进行补强加固。通过采取平压化学灌浆有效为后续水泥补强灌浆创造了良好的施工条件；平压化学灌浆改善了施工环境，有效解决了施工过程中，因库水位上升带来的安全风险；通过平压化学灌浆，有效节约施工时间，避免引水洞需长期保持平压，影响电站正常生产；水泥补强灌浆，进一步对渗漏通道进行全面封堵，为引水洞长期安全稳定运行，奠定了良好的基础。
Treatment method for crack leakage in transition section of water intake tunnel of hydropower station
一种水电站引水洞渐变段裂缝渗漏治理方法
2020-11-17
Patent
Electronic Resource
Chinese
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