快速钻探技术在岩溶隧道超前预报中的应用
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摘要
通过RPD-150C多功能快速钻机在齐岳山隧道复杂岩溶地段的工程应用,得出钻探过程中的EV能的大小是确定前方岩层的软弱程度的依据,返水量的大小和所携带的杂质是判断前方是否发育岩溶以及岩性的依据。以此为基础作出的预报结果比TSP203预报结果更直接,更接近实际开挖结果。同时,结合预报结果与实际开挖结果对比,分析了预报中出现误差的主要原因以及提高预报精度的措施。
Based on the application of Multi-functioned drilling rig type RPD-150C in complicated karst region of the Qiyueshan railway tunnel,we draw the conclusion that EV energy during drilling is the main evidence for charge weakness of rock,the volume of backwater and the impurities carried by backwater is used to ensure karst water and rock type.The forecasting results are more direct and closer to actual excavation results than those of TSP203.According to the comparison of the prediction results with the excavated conditions,we analyse the main reason about predication errors,some suggestions are given about how to improve data acquisition accuracy.
Based on the application of Multi-functioned drilling rig type RPD-150C in complicated karst region of the Qiyueshan railway tunnel,we draw the conclusion that EV energy during drilling is the main evidence for charge weakness of rock,the volume of backwater and the impurities carried by backwater is used to ensure karst water and rock type.The forecasting results are more direct and closer to actual excavation results than those of TSP203.According to the comparison of the prediction results with the excavated conditions,we analyse the main reason about predication errors,some suggestions are given about how to improve data acquisition accuracy.
引文
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[3]G.Kneib,周永胜,韩亮,等.对隧道反射地震学的再认识[J].工程地球物理学报,2007,4(4):267~274.
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[5]许新刚,李党民,周杰.地质雷达探测中干扰波的识别及处理对策[J].工程地球物理学报,2006,3(2):114~119.
[6]骆文学,刘丽花.RPD-150C多功能钻机在齐岳山隧道中的应用[J].现代隧道技术,2006,43(2):72~76.
[7]白明洲,杜永强,赵西民,等.宜万铁路齐岳山隧道地质水平钻探应用技术[J].探矿工程(岩土钻掘工程),2006,(4):59~61.
[8]王华,吴光,冯涛,等.渝怀线圆梁山隧道超前地质钻探预报技术应用研究[J].铁道建筑,2007,(2):36~38.
[2]杜文山,曹哲明,刘坡拉.宜万铁路复杂隧道施工地质实施细则[R].武汉:铁道第四勘察设计院,2006.
[3]G.Kneib,周永胜,韩亮,等.对隧道反射地震学的再认识[J].工程地球物理学报,2007,4(4):267~274.
[4]王振卿,何振起.TSP203地质预报系统在岩溶地区的应用[J].工程地球物理学报,2006,3(1):60~63.
[5]许新刚,李党民,周杰.地质雷达探测中干扰波的识别及处理对策[J].工程地球物理学报,2006,3(2):114~119.
[6]骆文学,刘丽花.RPD-150C多功能钻机在齐岳山隧道中的应用[J].现代隧道技术,2006,43(2):72~76.
[7]白明洲,杜永强,赵西民,等.宜万铁路齐岳山隧道地质水平钻探应用技术[J].探矿工程(岩土钻掘工程),2006,(4):59~61.
[8]王华,吴光,冯涛,等.渝怀线圆梁山隧道超前地质钻探预报技术应用研究[J].铁道建筑,2007,(2):36~38.
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