隧道施工期洞身段滑坡的超前地质预报 |
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引用本文: | 蔡建华,王业刚,张国备.隧道施工期洞身段滑坡的超前地质预报[J].工程地质学报(英文版),2015,23(4):778-783. |
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作者姓名: | 蔡建华 王业刚 张国备 |
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作者单位: | 1.中铁西南科学研究院有限公司 成都 611731; |
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摘 要: | 针对隧道施工期洞身段的滑坡超前地质预报, 以某高速公路某座隧道为例进行技术探讨, 介绍了隧道工程概况及滑坡区域基本工程地质条件。采用地质法中的趋势外推法、地质雷达波反射法、超前钻孔法, 对滑坡在隧道穿越区的延伸、规模、物质组成、工程和物理力学特性及其与隧道的空间位置关系进行了分析预测。得出了超前地质预报的综合评判结论, 减小甚至规避了单一方法的缺陷, 并提出了针对性的施工处治思路。实践证明本隧道洞身段滑坡超前地质预报是成功的, 对类似工程具有一定的参考价值。
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关 键 词: | 隧道 滑坡 超前地质预报 超前钻孔 地质雷达 |
收稿时间: | 2015-03-21 |
ADVANCED GEOLOGICAL FORECASTING OF LANDSLIDE AT TUNNELBODY DURING CONSTRUCTION |
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Institution: | 1.China Railway Southwest Research Institute Co., Ltd., Chengdu 611731;2.Sichuan Xugu Expressway Development Co., Ltd., Luzhou 646500;3.Pixian Zhongxin Construction Engineering Consulting Co. Ltd., Chengdu 611730 |
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Abstract: | This paper examines advanced geological forecasting of landslide about one tunnel body during construction. It takes an expressway tunnel as an example for technology and evaluation. It introduces the general situation of the tunnel engineering and the basic engineering geological condition of the landslide. Several methods including trend extrapolation of geology, reflection wave of geological radar, and advanced borehole are adopted for analytical prediction about the features of landslide. These features include the extension, scale, material composition, engineering and physical and mechanical properties, and the spatial location-relation with the tunnel. A comprehensive conclusion is obtained about advanced geological forecasting. It can reduce and /or even avoid the defects of the single method, and put forward the corresponding construction treatment ideas. |
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