巷道支护一直是阻碍矿山安全、高效开采的难题，特别是在深部高地应力区，如何通过合适的支护手段控制巷道的变形，已成为国内外学者们特别关注的工程问题。针对金川二矿区高地应力破碎围岩这一特殊的地质条件，采用现场调查与数值模拟计算相结合的方法，对研究区巷道变形破坏特征和8种不同支护方式效果进行了研究。结果表明：（1）研究区巷道的变形破坏模式可划分为6种，分别为偏压变形、顶板下沉、顶板开裂、底鼓、边墙开裂和片帮，其中片帮是最常见的一种破坏模式；（2）研究区巷道的变形破坏具有3个特征，分别为最大主应力主导性、大变形和显著的时间效应；（3）在支护方式中增加U钢支架、补充底部支护、增大锚杆长度及减小锚杆间排距几种方法均能不同程度地改善支护效果。其中，增加U钢支架和底部喷锚网支护效果最显著，可以减小约70%的巷道变形量和塑性区；增大锚杆长度能更好地控制巷道的变形和整体稳定性，但优化效果不显著；减小锚杆间排距有利于巷道各部位变形和塑性区的控制，密集的锚杆布置能够有效改善围岩的完整性，且降低锚杆排距的支护效果更好。该项研究成果为金川矿区以及具有相似地质条件的地下工程支护问题提供了借鉴。

With the rapid economic development，the status of mineral resources in the national economy and the demand for mineral resources has been increasing.In the mining production of these resources，it is an important task to ensure enduring and effective supports，which directly affect the safe production and sustainable development of the mine.Controlling roadway deformation by using appropriate support measures has become a critically important area of focus in the study of rock mechanics and mining.Because the rocks have experienced complex high stresses for a long period of time，the physical and mechanical properties of deep rock masses can change dramatically and the deformation failure modes are significantly different from those in shallow environments.Severe deformations and failures may occur due to high ground stress a short time after roadway excavations，and these may incur large repair costs that seriously hinder the baseline economic development of a mining area.The Jinchuan Mine，the largest nickel production base in China，is located in Jinchang City，Gansu Province.It is a large and complex deposit with high ground stress，a deeply buried ore body，and broken rocks.Due to its extremely complex regional geological background，special engineering geological environment，and distinctive rock mechanics，the Jinchuan Mine has attracted the attention of researchers and experts at home and abroad.Based on the special geological conditions of high-stress and fractured surrounding rock in Jinchuan No.2 mining area，field investigations and numerical simulations were carried out to study the deformation failure characteristics of the roadway in the study area and the effects of 8 different support methods.The results show that：（1）The deformation failure types of roadway in the study area can be divided into six types，including unsymmetrical pressure，roof falling，side cracking，floor heaving，side cracking and rib spalling which is the most common one；（2）The main features of the roadway deformation include large deformation，prominent time effect and the maximum principal stress plays a dominate role.（3）Adding U-shape steel，supplementing bottom support，increasing the length of the bolts，and reducing the distance between the bolts all can improve the support effect to different degrees.The effects of supplementing U-shape steel and bottom bolt-mesh-anchor support are the most significant，which can reduce the roadway deformation and plastic zone by about 70%.Increasing bolt length can control the deformation and overall stability of the roadway better，but the optimization effect is not significant.Reducing the spacing between bolts is beneficial to control the deformation and plastic zone on each part of the roadway.The dense arrangement of bolts can effectively improve the integrity of surrounding rock，and the supporting effect is better after reducing the row spacing of bolts.The aim of the research is providing a reference for other engineering solutions under similar geological conditions.