在青藏高原特殊的地质构造背景下，区内岩溶发育具有其独特性。为探究高原型岩溶的发育特征，探索高原型岩溶的调查分析方法，为高原岩溶区隧道工程选线提供参考，以藏东南怒江峡谷区某隧道工程为依托，通过调查确认区内现存各级夷平面的地形、地貌、结构特征，参考其对应的古气候特点，分析该区高原型岩溶的阶段性发育特征； 利用地表岩溶现象调查数据、航空电磁物理勘探及深孔钻探成果，进一步分析区内岩溶的垂直分带规律，验证基于夷平面演化分析高原型岩溶发育程度的可行性； 统计隧址区出水点的分布高程，采用其流量、同位素测试结果，结合岩溶发育规律分析岩溶水的补径排特征，划分岩溶地下水的垂直分带； 在此基础上，分析岩溶区隧道工程潜在风险，提出隧道选线及工程设置建议，以降低隧道工程施工中的岩溶塌陷与强烈突涌水风险。

Under the special geological structure of the Tibetan Plateau, karst development is unique in the region. To explore the development characteristics and investigation method of plateau karst and to provide a reference for tunnel route selection in plateau karst areas, a case study is conducted on a tunnel project in southeast Tibet. The investigation reveals that various levels of planation surface topography, geomorphology, and structural characteristics are present. The periodical development characteristics of karst in the plateau are analyzed according to corresponding paleoclimate characteristics. Moreover, using the survey data of surface karst phenomena, airborne electromagnetic physical exploration, and deep hole drilling results, the vertical zoning law of karst is further analyzed. The feasibility of analyzing the development degree of plateautype karst based on the evolution of planation surface is verified. Further, the distribution of water points in the tunnel area is statistically analyzed. The characteristics of filling diameter and discharge of karst water are analyzed using the flow rate and isotope test results and the karst development law. The vertical zoning of karst groundwater is divided. Finally, the potential risks of tunnel engineering in the karst area are analyzed. The estimation formula of tunnel route selection and engineeringsetting countermeasures are proposed to reduce the risk of karst collapse and strong water gushing in tunnel construction.