Application of directional drilling technology in tunnel exploration in complex urban areas
-
摘要: 定向钻探技术具有穿越能力强、轨迹可控的优势,在传统勘察难以实施的区域,定向钻探可远距离开孔绕避地面障碍物对预定区域进行勘察。某城区隧道在建筑密集区域进行定向钻探,选择在合适场地远距离开孔,通过轨迹调整沿隧道底板下方1 m进行钻进,同时在主孔上部实施2个分支孔,采用提钻取心工艺对全部区段进行间隔取心,并完成微动谱比法和孔内声波电阻率等物探测试。主孔最大埋深69 m,进尺650.75 m,轨迹最大偏移0.81 m。项目的成功实施证明,定向钻进技术与物探测试技术结合,可弥补传统勘探方法存在的不足,更好的揭露隧道围岩地质情况,为复杂城区隧道勘察提供一种有效手段。同时建议制定明确可行的技术原则和规范促进定向钻探技术在勘察领域的应用。Abstract: Directional drilling technology has the advantages of strong crossing ability and controllable trajectory. In areas where traditional exploration is difficult to implement, directional drilling can leave the hole at a long distance to avoid ground obstacles and conduct exploration in the predetermined area. A certain urban tunnel is undergoing directional drilling in a densely built area. It is selected to leave the hole at a suitable distance at a suitable site, and drilling is carried out along the 1m below the tunnel floor through trajectory adjustment. At the same time, two branch holes are implemented in the upper part of the main hole. The core extraction process is used to perform interval core extraction for all sections, and geophysical tests such as micro motion spectral ratio method and borehole acoustic resistivity are completed. The maximum burial depth of the main hole is 69m, the footage is 650.75m, and the maximum deviation of the trajectory is 0.81m. The successful implementation of the project has proven that the combination of directional drilling technology and geophysical testing technology can make up for the shortcomings of traditional exploration methods, better expose the geological conditions of tunnel surrounding rocks, and provide an effective means for complex urban tunnel exploration. At the same time, it is recommended to develop clear and feasible technical principles and norms to promote the application of directional drilling technology in the field of exploration.
-
Key words:
- directional drilling /
- trajectory control /
- complex urban area /
- tunnel survey /
- geophysical testing
-
-
[1] 赵丁选,杨力夫,李锁云,等.国内外非开挖定向钻机及其智能控制技术[J].吉林大学学报(工学版),2005,35(1):44-48.
ZHAO Dingxuan, YANG Lifu, LI Suoyun, et al. State-of-the-art of no-dig directional drillers and their intelligent control[J]. Journal of Jilin University (Engineering and Technology Edition), 2005,35(1):44-48.
[2] [2] 窦斌,蒋国盛.我国非开挖施工技术的发展概况及差距[J].岩土工程界,2001(4):47-48.
DOU Bin, JIANG Guosheng. Developyment Situation and prospect of trenchledd technology in our country[J]. Geotechnical Engineering World, 2001(4):47-48.
[3] [3] 郭兵,黄家骏.定向钻进过程的智能化控制技术研究与应用[J].郑州大学学报(工学版),2011,32(4):47-51.
GUO Bing, HUANG Jiajun. Research and application of intelligent control in the process of directional drilling[J]. Journal of Zhengzhou University (Engineering Science), 2011,32(4):47-51.
[4] [4] 张德龙,郭强,杨鹏,等.地热井花岗岩地层钻进提速技术研究与应用进展[J].地质与勘探,2022,58(5):1082-1090.
ZHANG Delong, GUO Qiang, YANG Peng, et al. Progress in research and application of drilling speed-up technology for granite formation in geothermal wells[J]. Geology and Exploration, 2022,58(5):1082-1090.
[5] [5] 马保松,程勇,刘继国,等.超长距离水平定向钻进技术在隧道精准地质勘察的研究及应用[J].隧道建设,2021,41(6):972-978.
MA Baosong, CHENG Yong, LIU Jiguo, et al. Tunnel accurate geological investigation using long-distance horizontal directional drilling technology[J]. Tunnel Construction, 2021,41(6):972-978.
[6] [6] 吴纪修,尹浩,张恒春,等.水平定向勘察技术在长大隧道勘察中的应用现状与展望[J].钻探工程,2021,48(5):1-8.
WU Jixiu, YIN Hao, ZHANG Hengchun, et al. Application status and r & d trend of horizontal directional investigation technology for long tunnel investigation[J]. Drilling Engineering, 2021,48(5):1-8.
[7] [7] 刘郡.水平定向钻进取心钻具关键技术研究[J].科学技术创新,2022(5):131-135.
LIU Jun. Research on key technology of horizontal directional coring tools[J]. Scientific and Technological Innovation in formation, 2022(5):131-135.
[8] [8] 吴金生,黄晓林,蒋炳,等.水平绳索随钻定向钻进技术研究与应用[J].煤田地质与勘探,2021,49(5):260-264,271.
WU Jinsheng, HUANG Xiaolin, JIANG Bing, et al. Research and application of horizontal wire-line directional deviation correction while drilling[J]. Coal Geology & Exploration, 2021,49(5):260-264,271.
[9] [9] 王尔林,陈元朋,赵泉,等.定向钻进工艺技术轨迹控制偏差分析[J].能源科技,2020,18(7):39-42.
WANG Erlin, CHEN Yuanpeng, ZHAO Quan, et al. Analysis of deviation in trajectory control in directional drilling technology[J]. Energy Science and Technology, 2020,18(7):39-42.
[10] [10] 李智鹏,易先中,陶瑞东,等.定向滑动钻进控制新方法研究[J].石油钻探技术,2014(4):59-63.
LI Zhipeng, YI Xianzhong, TAO Ruidong, et al. New control approach directional slide drilling[J]. Petroleum Drilling Techniques, 2014(4):59-63.
[11] [11] 董智杰.复杂地层下水平定向钻施工技术[J].水科学与工程技术,2019(1):80-83.
DONG Zhijie. Brief discussion on horizontal directional drilling construction technology under complicated stratum[J]. Water Sciences and Engineering Technology, 2019(1):80-83.
[12] [12] 陈晓林,胡汉月,刘志强,等.《定向钻探技术规程》行业标准解读及推广应用[J].探矿工程(岩土钻掘工程), 2020,47(8):24-27.
CHEN Xiaolin, HU Hanyue, LIU Zhiqiang, et al. Interpretation and application of the industry standard “Technical Specification For Directional Drilling”[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2020,47(8):24-27.
[13] [13] 黄才启.定向钻孔轨迹变化规律研究与动态设计方法[J].探矿工程(岩土钻掘工程),2011,38(5):15-19,56.
HUANG Caiqi. Study on directional borehole trajectory and the dynamic design[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2011,38(5):15-19,56.
[14] [14] 徐正宣,刘建国,吴金生,等.超深定向钻探技术在川藏铁路隧道勘察中的应用[J].工程科学与技术,2022,54(2):21-29.
XU Zhengxuan, LIU Jianguo, WU Jinsheng, et al. Application of ultra-deep directional drilling technology in the investigation of Sichuan-Tibet railway tunnel[J]. Advanced Engineering Sciences, 2022,54(2):21-29.
[15] [15] 孟宪亮.长距离定向钻进技术在巷道掘进超前探查中的应用研究[J].能源科技,2020,18(2):26-29.
MENG Xianliang. Application study of long-distance directional drilling technology in leading exploration of roadway tunneling[J]. Energy Science and Technology, 2020,18(2):26-29.
[16] [16] 张恒春,刘广,吴纪修,等.川藏铁路3000 m水平定向钻井技术方案[J].探矿工程(岩土钻掘工程),2020,47(11):1-6.
ZHANG Hengchun, LIU Guang, WU Jixiu, et al. Technical plan for 3000m long horizontal directional drilling for Sichuan-Tibet railway[J]. Exploration Engineering(Rock & Soil Drilling and Tunneling), 2020,47(11):1-6.
[17] [17] 刘春香,史继彪,朱元武.轨道交通工程长水平勘察孔施工技术[J].勘察科学技术,2017(2):37-40.
LIU Chunxiang, SHI Jibiao, ZHU Yuanwu. Construction technology of long horizontal survey hole for rail traffic engineering[J]. Site Investigation Science and Technology, 2017(2):37-40.
[18] [18] 赵建国,赵江鹏,许超,等.煤矿井下复合定向钻进技术研究与应用[J].煤田地质与勘探,2018,46(4):202-206.
ZHAO Jianguo, ZHAO Jiangpeng, XU Chao, et al. Composite directional drilling technology in underground coal mine[J]. Coal Geology & Exploration, 2018,46(4):202-206.
[19] [19] 隆东,李杰,向军文.物探与水平定向钻进在工程勘察取心中的结合应用[J].探矿工程(岩土钻掘工程),2008,35(12):42-44.
DONG Long, LI Jie, XIANG Junwen. Combinative application of geophysical prospecting and horizontal drilling in engineering survey sampling[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2008,35(12):42-44.
[20] [20]
[S].GB 50307—2012 ,城市轨道交通岩土工程勘察规范 [S].GB 50307—2012 , Code for geotechnical investigations of urban rail transit -
计量
- 文章访问数: 405
- PDF下载数: 72
- 施引文献: 0