2010年12月 施工技术 第39卷第12期 CONSTRUCTION TECHNOLOGY 87 宁淮高速红砂岩深路堑开挖技术 武喜 (山西省公路局大同分局，山西大同037006) 【摘要]红砂岩强度变化大，受气候、温度、日照、雨水等外部环境因素影响较大，因此在进行红砂岩深路堑开挖过 程中，需要采取必要的措施，控制红砂岩的风化速度.结合宁淮高速公路红砂岩深路开挖工程，从施工准备、开 挖方法、质量控制3方面进行分析研究.重点介绍了开挖施工的机械准备、测量放样、排水设施，指出需婴根据开 挖深度、纵向长度、地形等选择不同的开挖方法，其中包括横挖法、纵挖法、混合式开挖法等. [关键词]红砂岩；深路堑；开挖；挖掘方法 【中图分类号]U416.1 [文献标识码]A[文章编号]1002-8498(2010)12-0087-04 Construction Technology of Deep Cutting Excavation in Red Sandstone Wu Xi Datong Branch of Shanxi Highway Bureau Datong Shanxi 037006 China) Abstract:Red sandstone has large change in strength and is influenced by climate temperature sunshine rain greatly.As a result during deep cutting excavation in red sandstone necessary methods should be applied to control the weathering velocity of red sandstone.Combining with Nanjing-Huai Expressway excavation in red sandstone the construction technology is analyzed from construction preparation excavation methods and quality control.The machine preparation measurement and lofting drainage facilities are introduced in detail.It is pointed out that excavation methods should be chosen according to excavation depth longitudinal length terrain and so on which can include transverse excavation method longitudinal excavation method and hybrid excavation method. Key words:red sandstone;deep cutting:excavation;excavation method 红砂岩是一种主要由泥岩、砂质泥岩、泥质砂岩、淮高速公路南京江北段NH-JB3标的施工经验，浅谈采 砂岩及页岩等成分组成的软质沉积岩.由于其内部含用机械法对红砂岩深路董开挖的施工技术措施. 有丰富的氧化物，通常呈现出红色、深红色或暗红色.1工程概况 这种岩类主要分布在南方各省区，项目所在的江苏省 宁淮高速NH-JB3标段起...
宁淮高速红砂岩深路堑开挖技术.pdf
