摘要
随着中国经济的飞速发展,高铁的建设也规模不断扩大,然而面对建设用地、成本的限制,需要有效利用空间结构,地下空间结构成为高铁车站配套设计的主导。深基坑的支护技术在地下空间的有效利用上应用也越来越广泛。结合郑万高铁项目郏县车站站后配套工程地下空间施工采用咬合灌注桩进行支护为案例,针对富水砂卵地层的特殊地质特性进行咬合灌注桩的施工。通过案例总结经验,希望对类似地下空间工程施工者能提供一定帮助。
With the rapid development of China’s economy,the construction of high speed rail has also been expanding continuously,but facing the restriction of construction land and construction cost.Effective use of space structure is needed,and underground space structure becomes the leading supporting design of high-speed railway station.The supporting technology of deep foundation pit is more and more widely used in the effective utilization of underground space.Taking the underground space construction of the supporting project of Jiaxian Station of Zhengzhou-Wanzhou High-speed Railway Project as an example,this paper presents the construction of occlusive cast-in-place piles according to the special geological characteristics of water-rich sand-egg stratum.Through case study,the author hopes to provide some help to similar underground space constructors.
出处
《建筑技术开发》
2020年第6期78-80,共3页
Building Technology Development
基金
国家“十二五”科技支撑计划项目(YF1604SD13D)
关键词
地下空间
咬合灌注桩
砂卵地层
underground space
occlusal cast-in-place pile
sand egg formation
