4/3/2025, 9:13:07 AM 星期四
Research on investigation method of terrain change observation adits based on horizontal drilling
CSTR:
Author:
Affiliation:

The 8th Geological Brigade of Sichuan, Xichang Sichuan 615000, China

Clc Number:

P634

  • Article
  • | |
  • Metrics
  • |
  • Reference [18]
  • |
  • Related [20]
  • | | |
  • Comments
    Abstract:

    Vertical drilling technology is commonly used in mountain tunnel investigation with complex geological structure, however, it is difficult to meet the requirements of the terrain change observation adits investigation. Taking an terrain change observation adit investigation project in Xichang as an example, a method to solve the two key problems of detailed surrounding rock classification and water inflow estimation in tunel investigation based on horizontal drilling technology is put forward. Detailed logging of the joint fissures in full-hole horizontal drilling cores and the joint fracture linear density statistics are collected. Combined with the developed orientation and space of the joint fractures in the project site area, the standard rock mass model is established. Through statistical analysis of the standard model, the conversion factor K of the one-dimensional core fracture linear density and the three-dimensional volume joint number Jv of the rock mass is finally obtained. After that, the rock mass integrity index Kv and BQ values of the tunnel surrounding rock are calculated according to the standards and specifications, and then the classification of tunnel surrounding rock can be more detailed divided. In the process of drilling, horizontal drilling can be used to accurately judge the location of tunnel water inflow and measure it, which provides accurate calculation parameters for the calculation of tunnel water inflow.

    Reference
    [1] 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.
    [2] 赵强.基于水平定向钻技术的隧道围岩强度与岩性反演研究[D].武汉:中国地质大学,2022.ZHAO Qiang. Research on strength and lithology inversion of tunnel surrounding rock based on horizontal directional drilling technology[D]. Wuhan: China University of Geosciences, 2022.
    [3] 周梦迪,刘欢,韩丽丽,等.用于工程勘察的水平定向钻探技术探讨[J].钻探工程,2023,50(2):135-142.ZHOU Mengdi, LIU Huan, HAN Lili, et al. Discussion on the horizontal directional drilling technology for engineering survey[J]. Drilling Engineering, 2023,50(2):135-142.
    [4] 胡郁乐,赵海滨,姚震桐.坑道定向钻进系统在隧洞水平勘探工程中的适应性分析[J].钻探工程,2023,50(5):116-124.HU Yule, ZHAO Haibin, YAO Zhentong. Adaptability analysis of tunnel directional drilling system in tunnel horizontal exploration engineering[J]. Drilling Engineering, 2023,50(5):116-124.
    [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 survey using long-distance horizontal directional drilling technology[J]. Tunnel Construction, 2021,41(6):972-978.
    [6] 罗显梁,徐正宣,吴金生,等.川藏铁路千米级水平孔绳索取心钻进技术与应用[J].地质与勘探,2022,58(3):665-675.LUO Xianliang, XU Zhengxuan, WU Jinsheng, et al. Application of the drilling technology based on wireline coring to a kilometer-level horizontal hole on the Sichuan-Tibet railway[J]. Geology and Exploration, 2022,58(3):665-675.
    [7] 谢毅,徐正宣,陈明浩,等.山区铁路隧道超长定向钻探关键技术研究[J],铁道工程学报,2022,287(8):1-5.XIE Yi, XU Zhengxuan, CHEN Minghao, et al. Research on the key technology of ultra long directional drilling in railway tunnel in mountainous area[J]. Journal of Railway Engineering Society, 2022,287(8):1-5.
    [8] 肖华,刘建国,徐正宣,等.川藏铁路勘察超长水平孔绳索取心钻探技术[J].钻探工程,2021,48(5):18-26.XIAO Hua, LIU Jianguo, XU Zhengxuan, et al. Wire-line core drilling technology of ultra-long horizontal survey boreholes for the Sichuan-Tibet railway[J]. Drilling Engineering, 2021,48(5):18-26.
    [9] 马映辉,贾宏福,李成志,等.某铁路勘察近水平孔取心钻探施工技术[J].地质与勘探,2021,57(1):190-197.MA Yinghui, JIA Hongfu, LI Chengzhi, et al.Nearly-horizontal borehole coring and drilling techniques in the survey of a railway[J]. Geology and Exploration, 2021,57(1):190-197.
    [10] 李军,李勇,谢小国,等.狮子洋主航道水平勘察孔测井评价方法研究与应用[J].钻探工程,2022,49(6):21-29.LI Jun, LI Yong, XIE Xiaoguo, et al. Research and application of the logging evaluation method for horizontal holes in the main channel of Shiziyang[J]. Drilling Engineering, 2022,49(6):21-29.
    [11] GB/T 50218—2014.工程岩体分级标准[S].GB/T 50218—2014. Standard for engineering classification of rock mass[S].
    [12] JTG C20—2011.公路工程地质勘察规范[S].JTG C20—2011. Code for highway engineering geological survey[S].
    [13] TB 10012—2019.铁路工程地质勘察规范[S].TB 10012—2019. Code for geology survey of railway engineering[S].
    [14] 林峰,黄润秋,王胜,等.岩体体积节理数(Jv)的现场测量方法评价[J].工程地质学报,2008,16(5):663-666.LIN Feng, HUANG Runqiu, WANG Sheng, et al. Evaluation of in-situ measurement methods for counting volumetric joints of rock mass[J]. Journal of Engineering Geology, 2008,16(5):663-666.
    [15] Paimstrom A. Volumetric joint count: A successful and simple measurement of the degree of rock mass jointing[C]//Proceedings 4th International Congress-International Association of Engineering Geology. India, 1982:221-228.
    [16] 胡修文,胡盛明,卢阳,等.岩体体积节理数的统计方法及其在围岩分级中的应用[J].长江科学院院报,2010,27(6):30-34.HU Xiuwen, HU Shengming, LU Yang, et al. Measurement of volumetric joint count and its application in surrounding rock classification[J]. Journal of Yangtze River Scientific Research Institute, 2010,27(6):30-34.
    [17] 张修杰,程小勇.岩浆岩地区深埋特长隧道涌水量预测及差异分析[J].中外公路, 2020,40(S2):188-194ZHANG Xiujie, CHENG Xiaoyong. Prediction and difference analysis of water inflow in deep buried long tunnel in magmatic rock area[J]. Journal of China and Foreign Highway, 2020,40(S2):188-194.
    [18] 钟贵莉.某高速公路隧道涌水量预测研究[J].地下水,2022,44(1):33-37.ZHONG Guili. Study on the prediction of water inflow in a highway tunnel[J]. Ground water, 2022,44(1):33-37.
    Cited by
    Comments
    Comments
    分享到微博
    Submit
Get Citation
Share
Article Metrics
  • Abstract:942
  • PDF: 1256
  • HTML: 391
  • Cited by: 0
History
  • Received:September 18,2023
  • Revised:December 08,2023
  • Adopted:December 14,2023
  • Online: March 11,2024
  • Published: March 10,2024
Article QR Code