Reinforcement scheme of highway tunnel based on pile-plate composite structure replacing invert
DANG Xiaoyu1, MA Jinsong2
(1. Gansu Tiancheng Road and Bridge Survey and Design Co., Ltd., Lanzhou 730070, Gansu, China;2. Chongqing Branch, North China Municipal Engineering Design & Research Institute Co., Ltd., Chongqing 401147, China)
Abstract: In view of the road diseases that occurred during the operation of the Shiyan to Tianshui Expressway, such as road cracks, bulges, kick drums, etc, the reinforcement measure using pile-plate composite structure replacing of invert was proposed, comprehensively considering of many factors such as tunnel geology, hydrology, lining structure, disease situation, construction conditions, disposal period, project cost, etc. Using finite element numerical simulation calculation, and getting through the comparison and analysis of on-site test data, the results showed that the reinforcement schemes based on pile-plate composite structure replacing invert could better control tunnel settlement and deformation, reduce road settlement diseases, ensure tunnel operation safety, and provide reference for the treatment of similar operating tunnel diseases.
党晓宇, 马劲松. 基于桩板组合结构等代仰拱的公路隧道加固方案[J]. 隧道与地下工程灾害防治, 2023, 5(1): 90-96.
DANG Xiaoyu, MA Jinsong. Reinforcement scheme of highway tunnel based on pile-plate composite structure replacing invert. Hazard Control in Tunnelling and Underground Engineering, 2023, 5(1): 90-96.
[1] 兰宇. 高速公路隧道维护加固对策的模型试验研究[D]. 成都: 西南交通大学, 2005. LAN Yu. Model test of expressway tunnel for maintenance and reinforcement strategies[D]. Chengdu: Southwest Jiaotong University, 2005. [2] 刘大刚, 王明年, 庞烈鑫. 树根桩在黄土隧道基底加固中的现场试验研究[J]. 水文地质工程地质, 2008, 35(2): 120-123. LIU Dagang, WANG Mingnian, PANG Liexin. Field test study on root pile of foundation base in loess tunnel[J]. Hydrogeology & Engineering Geology, 2008, 35(2): 120-123. [3] 刘永华, 秦峰. G112线波罗诺隧道结构加固方案比选[J]. 公路交通技术, 2013, 29(6): 94-98. LIU Yonghua, QIN Feng. Comparison and selection of schemes for structure reinforcement of Boluonuo Tunnel on G112 line[J]. Technology of Highway and Transport, 2013, 29(6): 94-98. [4] 刘丽花. 运用钢管桩对隧道仰拱基底加固技术探讨[J]. 石家庄铁道大学学报(自然科学版), 2014, 27(增刊1): 110-112. [5] 胡胜强. 某高速公路隧道仰拱底鼓原因分析及处治方案数值模拟[J]. 路基工程, 2015(3): 238-242. HU Shengqiang. Reason analysis and numerical simulation for control scheme of inverted arch floor heave of highway tunnel[J]. Subgrade Engineering, 2015(3): 238-242. [6] 杜明庆, 张顶立, 张素磊, 等. 高速铁路隧道仰拱结构受力现场实测分析[J]. 中国铁道科学, 2017, 38(5): 53-61. DU Mingqing, ZHANG Dingli, ZHANG Sulei, et al. Field test and analysis of mechanical characteristics of tunnel invert structure for high-speed railway[J]. China Railway Science, 2017, 38(5): 53-61. [7] 赵涛, 李国良, 梁庆国, 等. 钢管桩加固饱和黄土隧道软基的试验研究[J]. 现代隧道技术, 2017, 54(3): 73-81. ZHAO Tao, LI Guoliang, LIANG Qingguo, et al. Experimental study on steel pipe pile reinforcement of the soft foundations of saturated loess tunnels[J]. Modern Tunnelling Technology, 2017, 54(3): 73-81. [8] 薛振年, 陈国龙, 孔维康, 等. 旋喷桩加固黄土隧道基底及仰拱数值模拟[J]. 西安科技大学学报, 2018, 38(4): 577-584. XUE Zhennian, CHEN Guolong, KONG Weikang, et al. Numerical simulation of jet grouting piles reinforcement in loess tunnel basement and inverted arch[J]. Journal of Xi'an University of Science and Technology, 2018, 38(4): 577-584. [9] 李又云, 谢柯, 孙永梅, 等. 浅埋黄土隧道复合地基受力变形分析及加固时机选择[J]. 岩石力学与工程学报, 2019, 38(11): 2332-2343. LI Youyun, XIE Ke, SUN Yongmei, et al. Stress and deformation analysis and reinforcement time selection of composite foundations in shallow loess tunnels[J]. Chinese Journal of Rock Mechanics and Engineering, 2019, 38(11): 2332-2343. [10] 李又云, 赵亚伟, 杨建国, 等. 大断面黄土隧道围岩流变对旋喷桩地基受力与变形的影响[J]. 铁道学报, 2021, 43(3): 166-174. LI Youyun, ZHAO Yawei, YANG Jianguo, et al. Numerical analysis of stress and deformation of jet grouting pile foundation under creep condition of large section loess tunnel[J]. Journal of the China Railway Society, 2021, 43(3): 166-174. [11] 张晓东, 赵明喆, 王学博, 等. 深埋隧道补强加固技术理论分析与模拟研究[J]. 公路, 2019, 64(7): 330-338. [12] 刘耿仁, 龙称心. 甜永高速公路某黄土隧道仰拱开裂原因分析及处置措施[J]. 路基工程, 2020(3): 230-234. LIU Gengren, LONG Chenxin. Cause analysis of inverted arch cracking at a loess tunnel on Tianshuibao-Yonghe Highway and the treatment measures[J]. Subgrade Engineering, 2020(3): 230-234. [13] 朱小明, 冯勇, 李彦伟. 甘肃省运营公路隧道仰拱缺陷特征及处治技术[J]. 公路, 2020, 65(1): 287-292. ZHU Xiaoming, FENG Yong, LI Yanwei. Characteristics and treatment techniques of inverted arch defects for Highway tunnels in service in Gansu Province[J]. Highway, 2020, 65(1): 287-292. [14] 尚军, 赵伟, 何伟. 单线铁路富水软岩隧道基底处理技术[J]. 隧道建设(中英文), 2021, 41(增刊1): 414-419. SHANG Jun, ZHAO Wei, HE Wei. Foundation treatment technology of water-rich soft-rock tunnel of single-track railway[J]. Tunnel Construction, 2021, 41(Suppl.1): 414-419. [15] 招生局重庆交通科研设计院有限公司.公路隧道设计规范 第一册 土建工程: JTG 3370.1—2018[S]. 北京: 人民交通出版社, 2019.