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Method for widening grouting reinforcement and seepage and blockage prevention range of rock and soil
The invention discloses a method for widening the grouting reinforcement and seepage and blockage prevention range of rock and soil. Grouting holes and water drainage holes are distributed in the place where reinforcement and seepage prevention need to be conducted at intervals according to a certain form through combination of static pressure grouting and vacuum negative pressure water drainage. By means of vacuum negative pressure water drainage, the underground water level is lowered, underground water and air in holes of rock and soil are discharged, and dilution of underground water on grouting fluid is reduced. Negative pressure is formed at the water drainage positions, under the same grouting pressure condition, a forward pressure field is formed, the grouting speed is increased, and the grout expansion radius is increased. When a vacuum negative pressure pump works, underground water in holes of rock and soil surrounding the water drainage holes is collected towards the water drainage holes, dynamic water pressure is formed, and the grouting expansion radius is further increased. The grouting reinforcement and seepage and blockage prevention range of rock and soil is widened, the grouting effect is improved, the grouting quality is improved, and the grouting speed is increased. The method has the remarkable beneficial effects of being small in work amount, high in safety, good in grouting effect, wide in reinforcement and seepage prevention range, and the like.
Method for widening grouting reinforcement and seepage and blockage prevention range of rock and soil
The invention discloses a method for widening the grouting reinforcement and seepage and blockage prevention range of rock and soil. Grouting holes and water drainage holes are distributed in the place where reinforcement and seepage prevention need to be conducted at intervals according to a certain form through combination of static pressure grouting and vacuum negative pressure water drainage. By means of vacuum negative pressure water drainage, the underground water level is lowered, underground water and air in holes of rock and soil are discharged, and dilution of underground water on grouting fluid is reduced. Negative pressure is formed at the water drainage positions, under the same grouting pressure condition, a forward pressure field is formed, the grouting speed is increased, and the grout expansion radius is increased. When a vacuum negative pressure pump works, underground water in holes of rock and soil surrounding the water drainage holes is collected towards the water drainage holes, dynamic water pressure is formed, and the grouting expansion radius is further increased. The grouting reinforcement and seepage and blockage prevention range of rock and soil is widened, the grouting effect is improved, the grouting quality is improved, and the grouting speed is increased. The method has the remarkable beneficial effects of being small in work amount, high in safety, good in grouting effect, wide in reinforcement and seepage prevention range, and the like.
Method for widening grouting reinforcement and seepage and blockage prevention range of rock and soil
ZHAO GUOYAN (author) / LIN CHUNPING (author) / LI ZHENGKUI (author)
2015-12-23
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
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Gründungen
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