公路隧道下穿明长城古遗址段保护措施研究  

Research on Protective Measures for the Highway Tunnel Passing through the Ancient Site Section of the Great Wall of the Ming Dynasty

作　　者：张晓景 Zhang Xiaojing(Shanxi Transportation Planning Survey and Design Institute Co.,Ltd.,Taiyuan 030032,China)

机构地区：[1]山西省交通规划勘察设计院有限公司,太原市030032

出　　处：《北方交通》2025年第3期72-76,共5页Northern Communications

摘　　要：国家高速公路朔城至神池段项家沟隧道下穿明长城古遗址段,为更好地保护文物,减少隧道开挖对明长城遗址的影响,结合项家沟隧道下穿明长城工程实际,提出以下保护措施:(1)顺明长城轴线方向,在地表布置两排减震孔进行减震,减弱爆破产生的冲击波、膨胀波的影响;(2)分析在交叉中心一定范围内进行爆破的可行性,必要时可采用静态爆破;(3)在交叉中心一定范围内,采用单侧壁法开挖,并采用双排超前小导管进行超前支护,提升衬砌的支护刚度。The Xiangjiagou tunnel of the national expressway from Shuocheng to Shenchi passes through the ancient site section of the Great Wall of the Ming Dynasty.In order to better protect cultural relics and reduce the impact of tunnel excavation on the ancient site of the Great Wall of the Ming Dynasty,in combination with the engineering practice of the Xiangjiagou tunnel passing through the the Great Wall of the Ming Dynasty,the following protective measures are put forward:(1)Two rows of shock-absorbing holes are arranged on the earth surface along the axis direction of the Great Wall of the Ming Dynasty to reduce the impact of blasting shock waves and swelling waves generated by the blasting;(2)The feasibility of blasting within a certain range of the intersection center is analyzed,and static blasting is used when necessary;(3)Within a certain range of the intersection center,the single-sided wall method is used for excavation,and the double-row advanced small conduits are used for advanced support to strengthen the support stiffness of the lining.

关 键 词：减震孔 微震爆破 超前支护 文物保护 明长城 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]