富水隧道整体道床及隧底病害治理技术研究

Technology Research of Disease Treatment about Solid Track Bed and Foundation Base of Enriched Water Tunnel

研究目的:针对某长大富水隧道在运营过程中整体道床与隧底出现张合的现象,对产生病害的原因进行分析,采取合理的整治措施,封堵地下出水及注浆加固病害区域,确保铁路线路运营安全。研究结论:(1)现场实践表明病害区域采用组合锚杆锚固方法与定量定压注浆方法治理病害区域的方法是可行的;(2)轨道高程监测结果表明注浆施工前后道床板未发生明显变形,注浆压力满足线路安全控制要求;(3)列车通过时道床板的动态监测结果表明整治后道床板已处于稳定状态,病害区域加固效果良好;(4)该研究成果可为类似长大富水隧道病害治理提供参考。

Research purposes： Aiming at the open and merge between solid track bed and foundation base of the enriched tunnel in the process of the railway operation, the causes of diseases is analysed, reasonable management measure is taken, which is used to plug underground water and grout the disease area, so as to ensure the structure safety of the process of the railway operation. Research conclusions：Through the practice of construction, the method of composite anchor anchoring and quantitative amount pressure grouting which is used to cure disease is viable. The result of altitude monitoring shows that there is no obvious deformation happens before and after grouting construction, the grouting pressure can satisfy with the line safety control requirements. The result of dynamic monitoring results of the solid track bed when there is the train pass by shows that solid track bed is in a stable state, there is a good reinforcement effect in the disease area. The results of the study can provide a reference for similar enriched water tunnel diseases treatment.