煤巷顶板锚固区域富水岩层支护中出现的沿锚杆(索)钻孔持续渗、淋、涌水难题是工程中亟待解决的问题。采用一种新型锚杆(索)防水锚固剂进行了相关防水性配比试验研究;为了获得煤系碎裂顶板持续渗水作用下粉砂岩强度变化规律,在现场与实验室分别进行渗水试验。结果表明:NS-1不饱和聚酯树脂及添加2%的XS-1高分子速溶胶粉是防水型锚固剂关键点;在静水浸泡作用下,粉砂岩抗压强度呈现先缓慢增大而后快速衰减的变化规律;在动水渗流、循环风干作用下粉砂岩在36～42 h内裂隙开度增加,强度持续弱化。研究了粉砂岩顶板水与支护体耦合作用关系,在团柏煤矿101101巷道进行新型锚固剂锚杆(索)锚固试验,防水型锚固剂在钻孔渗流量为140 mL/s时,仍能达到208 kN的锚固效果;试验结果表明,对锚杆、锚索施加高预应力和采用防水锚固剂可保证顶板淋水碎裂煤巷的稳定。 The continuous seepage, pouring and gushing water problems along the anchor (cable) borehole occurred in the support of water-rich rock strata in the anchor zone of coal seam roof are problems to be solved urgently in the project. A new type of anchor (cable) waterproof anchor agent was used to test the water-proofing ratio. In order to obtain the law of the strength of siltstone under continuous water seepage of coal-based fractured roof, seepage test was carried out on site and in the laboratory. The results show that NS-1 unsaturated polyester resin and 2% XS-1 polymer instant powder are the key points of waterproof anchoring agent. Under the condition of still water immersion, the compressive strength of siltstone firstly increases slowly and then rapidly At the same time, the fractures of siltstone increased within 36 ~ 42 h under the condition of hydrodynamic seepage and cyclic air-drying, and the strength continued to weaken. The coupling relationship between the water and the support body of the siltstone roof was studied. A new anchoring bolt (cable) anchoring test was carried out in 101101 roadway in Tubaibo Coal Mine. When the seepage flow rate of the water-proof anchoring agent was 140 mL / s, Reaching 208 kN anchoring effect. The test results show that the application of high prestressing force to anchors and anchor cables and the use of waterproof anchoring agent can ensure the stability of top coal seam sloughing.