| 摘要: |
| 南水北调西线一期工程的引水隧洞长达73 km,最大埋深1100 m,因此软围岩大变形及岩爆等工程地质问题 尤为突出。利用地球物理综合探测技术对工程区的工程地质条件进行了研究,并对隧洞开挖过程中可能遇到的工 程地质问题进行了分区。对于南水北调西线工程而言，首先应该考虑的地球探测指标是探测深度。因可控源音频 大地电磁法(CSAMT法)探测深度为1~2 km，所以当各种地球物理探测技术对深部的探测结果相互抵触时,要对 CSAMT法的测试结果给予充分的重视。在南水北调西线一期工程玛柯河-贾曲段的工程地质条件勘察过程中，地 球物理综合勘探技术对155?239桩段断层破碎带的解释结果与野外岩石露头所反映的地质信息吻合较好,并得到 了钻孔资料的验证,说明地球物理综合勘探技术值得在南水北调西线工程中推广。 |
| 关键词: 地球物理；综合勘探技术；可控源音频大地电磁法 南水北调 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(90302011) |
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| Application of comprehensive geophysics exploration technology to water diversion project from south to north of China |
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TAO Bo1,2,WUFa-quan2,DI Qing-yun2,GUO Gai-mei2,MAO Jun-biao3
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(1.School of Resource and Information Technology in China University of Petroleum，Beijing 102249, China ;2. Institute of Geology and Geophysics，Chinese Academy of Science，Beijing 100029，China ;3. Institute of Engineering and Technology，Chinese University of Geosciences, Beijing 100083，China )
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| Abstract: |
| Seepage tunnel of the west line of water diversion project from south to north of China is 73 km long and its maximal depth of burial is 1100 m. Therefore, large deformation of weak rock and rock outburst should become notable. Engineering gedo-gy conditioi was detected by oc?叩rehensive exploration techndogy of geophysics, and the seepage tunnel was departed along its length according to probably appearing engineering geology prc>blems. Exploraticai depth of geophysics method is first factor to be considered for the west line of water diversion prcgect fimi south to north of China. Exploration depth of CSAMT ranges frcm 1 to 2 km. Consequently the results of CSAMT should be paid more emphasis on when the results of different exploration technology of geophysics present discrepancy. Cmiprehensive exploraticn techndogy of gecphysics was applied to engineering geology reconnaissance of the part fran Make river to Jia river of the west line of water diversion project fion south to north of China. The results of comprehensive exploration technology of geophysics for default and crash belt from the stations ranging from 155 to 239 agree well with geology information of rock outcrq), which are verified by drilling data. Ccoprehensive ?q^loration technology of geophysics is worth popularizing in the west line of water diversion project frcm south to north of China. |
| Key words: gec hysics ocoprehensive exploratioi technology CSAMT water diversion project fitm south to north of China |
