摘要
通过对重载铁路隧道基底病害调查，对重载铁路隧道基底病害进行了分类，通过理论分析的方法对病害产生原因进行了总结。对现有隧道基底病害整治方法进行分析，指出各种方法的适用性和优缺点，最后提出井点降水＋锚桩＋注浆的基底病害整治方案，并在神朔铁路进行应用。主要结论如下：重载铁路隧道基底病害主要为基床沉陷、基底积水、基底吊空、轨枕与衬砌开裂、渗漏水和轨道板的开裂与损坏等；隧道基底病害产生原因是多种因素综合作用的结果，地下水和列车荷载是基底病害产生的决定性因素，基底软弱围岩和设计施工质量是病害产生的先天条件；针对重载铁路基底病害产生的原因，提出采用“先治水、后治病，先下后上，对症下药”的整治原则；结合各种整治方法的优缺点，提出井点降水＋树根桩＋注浆的方法对神朔铁路某隧道进行基底病害整治，实现了不中断行车下的隧道基底病害整治。
Based on the investigation of basements diseases in heavy railway tunnels, this paper classifies the basement diseases of heavy railway tunnels and summarizes the causes of the diseases through theoretical analysis. Therefore,it turns out the applicahility and advantages and disadvantages of the various methods, finally, the remediation scheme for the basements diseases with well - point precipitation ＋ anchor pile ＋ grouting is put forward and then applied in Shen - shuo Railway. The main conclusions are as follows： The basements diseases of heavy railway tunnels are mainly foundation bed subsidence, basements waterlogging, foundation hanging, crack in sleeper and lining, crack and damage in leakage and track plate etc. There are many different causes for the tunnel basements diseases, among which the groundwater and train load are the decisive factors, the weak surrounding rock and the quality of design and construction are the congenital conditions, it is put forward the methods and regulations for the deseases as following ＂control the water first, then cure the disease, the lower part before the upper part, suitable remedy to the case. ＂ a practical method with well - point precipitation ＋ anchor pile ＋ grouting is put forward to treat the basements diseases in some tunnels of Shen - shuo Railway, which achieves a good treatment of tunnel basement disease under the traffic operation.
作者
张夏
ZHNAG Xia(School of Highway and Railway Engineering,Shaanxi College of Communication Technology,Xi＇an 710018,China)
出处
《陕西交通职业技术学院学报》
2018年第3期13-17,共5页
Journal of Shaanxi College of Communication Technology
关键词
隧道工程
重载铁路
基底病害
整治措施
tunnel engineering
heavy haul railway
basements disease
treatment measures
