ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2010, Vol. 30 ›› Issue (3): 304-308.
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SUN Guo-Qiang
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Abstract:
In order to conquer F11 highpressure and waterrich fractured fault of Qiyueshan tunnel on YichangWanzhou railway, continuous innovations are made to the grouting design, grouting completion standard and execution concept on basis of the conventional pregrouting theory and the geological conditions. "Probing + grouting" mode, accurate tracing grouting design and combination of grouting and supporting are presented in detail. The importance of standard management and control of the borehole drilling, grouting and effect evaluation is emphasized. In the end, the grouting quantity is reduced, the grouting effect is guaranteed and the execution efficiency is improved. The paper can be served as reference for the design and execution of grouting in similar geological conditions in the future.
Key words: highpressure and , waterrich, fault, grouting design, construction technology
SUN Guo-Qiang. Discussion on Design and Execution of Grouting for F11 Highpressure and Waterrich Fault of Qiyueshan Tunnel[J]. Tunnel Construction, 2010, 30(3): 304-308.
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