长大深埋隧道工程地质综合勘察技术应用研究

研究目的:高速铁路、客运专线等长大干线经过的地域广、地形地质条件十分复杂,勘察中仅采用地质调绘、钻探等勘察手段,难以在短时间内查清山区铁路一系列长大、深埋隧道的工程地质、水文地质条件,为线路方案比选、工程设计等提供详细的工程地质资料。通过采用综合勘察技术可解决上述问题。研究结论:实践证明,山区铁路长大、深埋隧道采用综合勘察技术,以遥感结果为指导,大面积地质调绘、水文地质调查等为基础,利用综合物探解译成果、结合必要的地质钻探、综合测试,并通过综合分析、研究,可以缩短工期、减少勘探量,取得显著的技术、经济和社会效益。

Applicable Research on Comprehensive Survey Technology of Engineering Geology for Large Deeply -buried Tunnel

Research purposes: The high-speed railway and passenger dedicated line pass through broad areas with very complex topographic and geologic conditions,so it is quiet difficult to make a thorough investigation of engineering geology and hydro-geological conditions for the large deeply-buried long tunnel in short time only by using the geological mapping and exploration drilling means.So the comprehensive survey technology must be used for providing the engineering geological data for the track alignment and engineering design. Research conclusions:The practices show when the comprehensive survey technology is used for the large deeply-buried tunnel in mountain area along with necessary geological drilling and the comprehensive tests,analysis and research,the construction period can be shortened,the survey works can be reduced and the good social and economic benefits can obtained by taking the sensing result as the guidance,taking the hydro-geological investigation in the large scope as the basis and using the interpretation result of the comprehensive physical prospecting.