To ameliorate the defects of insufficient support resistance of traditional roadside filling bodies for gob-side entry retaining (GER), overcome the inability to adapt to the deformation of surrounding rock, and isolate the goaf effectively, a new type of high-water material as a roadside filling body for GER technology with double roadways was proposed. The instability analysis and control technology of GER with double roadways by filling high-water material into a gently inclined coal seam were studied. The basic mechanical properties of the new high-water material were investigated through laboratory experiments, and their main advantages were identified. The reasonable width of the roadside filling wall of a high-water material was obtained by combining ground pressure observation and theoretical calculations. The distribution characteristics of the stress and plastic zone of surrounding rock of GER after being stabilized by the disturbance of the working face were studied using numerical simulations, and the failure range of GER by filling with high-water material was revealed. Based on this, a coupling control technology of anchor cables and bolts + single props + metal mesh + anchor bolts is proposed. Through the coupling methods of arranging borehole peeping and observing the convergences of surrounding rock, the results demonstrate that GER with double roadways by filling with a 1.8-m-wide high-water material has a good control effect. The above research will play an active role in promoting the application of high-water materials in GER roadside filling.

为改善沿空留巷（GER）传统路边充填体支护抗力不足的缺陷，克服围岩变形不能适应围岩变形，有效隔离采空区，一种新型高水位材料提出了一种用于双巷 GER 技术的路边填充体。研究了缓倾斜煤层充填高水物料双巷GER失稳分析与控制技术。通过实验室实验研究了新型高水材料的基本力学性能，并确定了其主要优势。结合地压观测和理论计算，得出高水位材料路边充填墙的合理宽度。数值模拟研究了工作面扰动稳定后GER围岩应力塑性区的分布特征，揭示了高水位材料充填GER的破坏范围。在此基础上，提出了锚索与锚杆+单支柱+金属网+地脚螺栓的耦合控制技术。通过布置钻孔窥视和观察围岩会聚的耦合方法，结果表明，采用1.8米宽的高水位材料填充双巷GER具有良好的控制效果。上述研究将对高水材料在GER路边填料中的应用起到积极的推动作用。