1. China Railway Eryuan Engineering Group Co. Ltd, Chengdu, Sichuan 610031, China; 2. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, Sichuan 610059, China; 3. Institute of Exploration Technology, Chinese Academy of Geological Sciences, Chengdu, Sichuan 611734, China
Abstract：Research purposes: The topographic and geological conditions of the mountainous area railway are extremely complex and changeable, and the engineering geological problems are prominent and hidden. In addition, the traffic is inconvenient, the people are rarely visited, the steep rock strata are widely distributed, the ecological environment is fragile, and the environmental protection requirements are high. Drilling is the most direct, accurate and effective tunnel engineering survey method. The implementation of traditional vertical drilling of railway tunnel is difficult, resulting in the blank of exploration data in long and large sections of tunnel, which seriously restricts the survey and design work, so it is urgent to carry out the research on ultra long directional drilling technology in railway tunnel, especially the key technology of ultra-kilometer horizontal hole rope coring directional drilling. Research conclusions: (1) The ultra long horizontal hole rope coring directional drilling is an advanced drilling method of taking cores from the drill pipe without lifting the drill pipe string. It is the key technology for the investigation of long, deep buried railway tunnels in complex and dangerous mountainous areas. (2) Through the research on directional drilling methods and technologies, equipment and instruments, and green engineering materials, the directional drilling technology system of super long horizontal hole rope for core in railway tunnel is constructed. (3) The method and process of directional drilling for the core of super long horizontal hole rope in railway tunnel are established, and the longest horizontal hole drilling record in the history of railway survey in China is 1888.88 m. (4) The ultra long horizontal hole rope coring directional drilling technology studied in this paper has a broad application prospect in the Western Development, Transportation Power strategy and the the Belt and Road construction in the new era.
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(5):1-8.Wu Jixiu, Yin Hao, Zhang Hengchun,etc. Application Status and R & D Trend of Horizontal Directional Investigution Technology for Long Tunnel Investigation[J]. Drilling Engineering,2021(5):1-8.
[2]
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(12):42-44.Long Dong, 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(12):42-44.
[3]
向军文,向昆明,张新刚,等.绳索定向造斜及取心技术应用[J].探矿工程:岩土钻掘工程,2009(8):18-21.Xiang Junwen, Xiang Kunming,Zhang Xingang, etc. Application of Wire-line Directional Drilling and Coring Technology[J]. Exploration Engineering:Rock & Soil Drilling and Tunneling,2009(8):18-21.
[4]
赵大军,吴金发.隧道工程勘察水平孔钻进钻具的运动与受力分析[J]. 探矿工程:岩土钻掘工程,2020(11):12-24.Zhao Dajun, Wu Jinfa. Analysis of Movement and Force of Horizontal Drilling Tools for Tunnel Engineering Investigation[J]. Exploration Engineering:Rock & Soil Drilling and Tunneling,2020(11):12-24.
2022, Vol. 39 
版权所有 © 2014 《铁道工程学报》编辑部