本文以离石黄土隧道的渗漏水病害问题为研究对象，通过对离军高速公路隧道渗漏水进行现场调研，查清黄土公路隧道渗漏水的表现特征，在离石黄土隧道渗漏水病害产生原因进行分析的基础上，采用有限元法对隧道施工阶段和运营阶段的病害响应机制进行了仿真计算分析，并提出了渗漏水病害的处治技术措施。本论文的研究对类似工程有一定的借鉴作用。主要的研究成果如下： 1）通过现场调研，发现黄土隧道渗漏水易发生的部位主要集中在施工缝的地方，特别是环向施工缝的隧道拱顶位置、靠近中隔墙的拱腰位置，以及中隔墙的洞口段等；施工阶段是控制隧道运营阶段出现渗漏情况的关键阶段；连拱隧道的自身结构形式表现出更易发生渗漏，具有先天的缺陷； 2）在对隧道中隔墙、左右洞的拱腰以及隧道拱脚衔接处进行施工时，应做到“勤量测、紧跟进、及支护”；并在隧道左洞设置相应的排水系统，加大渗水监测密度，选择抗渗性较高的混凝土，合理控制隧道围岩水的“防、排”度； 3）尽量避免在雨季对隧道进行施工；对隧道围岩的加固可以显著降低隧道产生渗漏水的风险，延长隧道的使用寿命；离石黄土隧道运营期水害易发区，主要集中在环向施工缝的拱顶和中隔墙处，这与离军高速公路渗漏水调研结果十分相似； 4）通过对离石黄土隧道渗漏水病害形成机理的研究，并对离石黄土隧道渗漏水病害防治技术进行探讨，将现有整体浇筑成型的中隔墙采用模块化生产、模块化施工完成，提出了一种连拱隧道中隔墙分块施工技术。

The water seepage in Lishi loess tunnel is studied in this paper. The characteristics of the leaking water in the loess highway tunnel are investigated by site investigation. Based on the analysis of the causes of the disease, the response mechanism in the construction stage and the operation stage was simulated via finite element method. Meanwhile, treatment technologies are put forward. The research in this paper can provide reference for similar projects. The main research results are as follows: 1）By the field investigation, it’s found that those diseases always occur at are construction joints, especially the tunnel vault positions of circular construction joints, hance nearby mid-partitions and mid-partitions on the opening. Construction period is the key point to control the seepage which occurs in operation period. Arch tunnel is more prone to leakage because of its inherent defects. 2）The principal of frequent measurement, immediate follow-up and timely support should be followed on the construction of mid-partitions, tunnel hance positions of left and right tunnels and arch foot cohesion. On the construction period, drainage system should be set on the left tunnel, seepage detection should be enhanced, as well as concrete with high anti-permeability resistance should be used. meanwhile, the prevention and leakage should be well controlled. 3）Try to avoid the construction of the tunnel during the rainy season. The reinforcement of the surrounding rock can significantly reduce the risk of the leakage and prolong the service life of the tunnel. The water damage area in the operation of the tunnel is mainly concentrated in the vaults and the mid-partitions, which is similar with the research results of the leakage in Lijun highway. 4）Through the study on formation mechanism of seepage diseases on loess multi-arch tunnel, control technology were discussed. Modular production and modular construction of the existing integral pouring mid-partitions were completed. A design and construction technology of mid-partition for multiple-arch tunnel with modular waterproof and drainage was brought up。