摘要
针对现有公路隧道注浆钻机存在施工高度有限、灵活性差、钻孔施工效率低的问题,研制了一种履带式全空间液压钻机,采用有限元方法对钻杆和钻头进行了强度分析,建立数学模型对冲击作用下的钻机进行了稳定性分析,并应用于江西南石壁隧道注浆治理中。研究结果表明:该钻机可在3~9 m内实现隧道内全方位钻孔,主要受力构件满足强度、刚度的使用需求,最大动态稳钻压力作用下,该钻机能保持自身稳定。履带式全空间液压钻机解决了现有隧道注浆钻机施工高度不足、靠孔姿态调整范围小的问题,有效提高了隧道注浆钻孔效率。
A tracked,full-space hydraulic drilling rig was developed to address the limitations of existing highway tunnel grouting rigs,such as limited construction height,poor flexibility,and low drilling efficiency.Finite element method was employed to conduct strength analysis on the drill rod and drill bit,and a mathematical model was established to analyze the drilling rig's stability when subjected to impact.The research results show that the drilling rig is capable of performing all-round drilling within a range of 3~9 meters in the tunnel,and its main load-bearing components meet the required standards for strength and stiffness.The drilling rig can maintain its stability even under maximum dynamic stable drilling pressure.By resolving the issues of insufficient construction height and limited adjustment range of hole posture in existing tunnel grouting drilling rigs,the tracked,full-space hydraulic drilling rig effectively improves the efficiency of tunnel grouting drilling.
作者
张霄
于昊
谭志兵
郝彭帅
万长明
李相辉
ZHANG Xiao;YU Hao;TAN Zhibing;HAO Pengshuai;WAN Changming;LI Xianghui(Geotechnical and Structural Engineering Research Center,Shandong University,Jinan 250061,China;Jiangxi Provincial Communications Investment Group Company Limited,Nanchang 330036,China;School of Civil Engineering,Shandong University,Jinan 250061,China)
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2023年第2期189-197,共9页
Journal of Liaoning Technical University (Natural Science)
基金
江西省交通厅课题(2018H0043)
中央高校基本科研业务费(2019GN079)
关键词
注浆加固
履带式全空间液压钻机
升降平台
方位角
稳定性
grouting reinforcement
crawler-type full-space hydraulic drilling rig
lifting platform
azimuth
stability
作者简介
张霄(1983-),男,山东滨州人,博士,教授,主要从事岩土工程方面的研究。
