随着我国铁路建设实力的不断增强，铁路修建标准亦不断提高，出现了越来越多施工风险大、成本高、建设周期长的长大深埋隧道，新奥法已逐渐被证实不适用于高地应力复杂地质条件下的软岩隧道的施工，因此需要一个更先进的系统化隧道设计施工方法。基于新意法理论，结合数值模拟与监测具体进行了以下几方面工作： （1）探讨高地应力软岩隧道发生大变形的成因与破坏机理；对比分析软岩隧道围岩分级法和基于新意法的隧道围岩分级；通过理论分析结合数值模拟的手段，研究不同超前支护措施对掌子面稳定性的影响，并将掌子面稳定性进行等级划分。 （2）根据木寨岭隧道地质情况，分析其大变形原因，并对其进行围岩分级。利用有限元软件Midas/GTS按隧道高地应力大变形实际状况建立三维数值模型，在不考虑渗流的情况下，分别对三台阶法、预留核心土环形扩挖法、超前导洞扩挖法和新意法开挖这四种施工工法进行数值模拟计算，得到了四种工法下拱顶沉降、边墙水平位移、围岩和初支应力变化规律，由数值模拟结果得出新意法是控制大变形的首选施工工法。 （3）探讨了高地应力软岩隧道大变形的控制技术，着重对预留变形量与玻璃纤维锚杆的作用效果进行研究。对预留变形量的影响因素进行分析，并对中外两种不同的预留变形量计算方式进行对比分析，并提出使用条件；通过对不采用加固措施、采用超前小导管预加固以及不同长度的玻璃纤维锚杆在高地应力软岩隧道中的作用效果进行模拟，得到通过玻璃纤维锚杆预加固可以显著控制隧道变形的结论及锚杆长度为18m时，对大变形控制效果要最好，掌子面上下边缘区域的两排玻璃纤维锚杆易发生应力集中。

With the continuous improving of China's railway construction capability, the standards of railway construction have been advanced too and more and the tunnel which has the features of high construction risks, high costs and long construction period would be increasingly constructed. The New Austrian Tunnelling Method has gradually been proved that it was unsuitable for using in condition where high ground stress and extremely complex geological environment exists. So, it’s necessary to search a more advanced systemized tunnel design and construction method. Based on the theory of ADECO-RS, combined with numerical simulation and monitoring, the following aspects were specifically carried out: (1) Exploring the cause and failure mechanism of large deformation of soft rock tunnel with high ground stress; Comparing and analyzing the two different surrounding rock classification method of soft rock tunnel which based on the NATM and ADECO-RS; Through theoretical analysis combined with numerical simulation, Studying the effects of different advanced support measures on the stability of the face were studied, and classify the stability of the tunnel face. (2) According to the geological conditions of the Muzhailing tunnel, analyze the causes of the large deformation and classify the surrounding rock. The finite element software Midas/GTS is used to establish a three-dimensional numerical model based on the actual situation of the tunnel’s large deformation. Without considering the seepage, numerical simulation calculations for the four construction methods of three-step method, the bench reservation core soil method, the piolt heading method and ADECO-RS, get the change law of crown settlement, lateral displacement of side wall, the stress of surrounding rock and primary support. From the results of numerical simulation, it is concluded that the ADECO-RS is the preferred construction method for controlling large deformation. (3) The control technology of large deformation of soft rock tunnel with high ground stress is discussed, emphasis on the effect of reserved deformation and GFRP. The influencing factors of the reserved deformation amount are analyzed, and the two different methods of calculating the reserved deformation amount are compared and analyzed, along with the conditions of use are proposed. The numerical Simulation of the effect of non-reinforcement measures, pre-reinforcement with advanced small conduits, and different lengths of GFRP in soft rock tunnels with high ground stress, It is concluded that the deformation of the tunnel can be significantly controlled by the pre-reinforcement of the GFRP when the length of the bolt is 18m, and the control effect of it towards large deformation is the best. The two rows of GFRP on the lower edge of the face are prone to stress concentration.