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中文摘要：
基于赵楼煤矿井底车场巷道围岩矿物成分分析、室内岩石力学试验、巷道地应力测试、围岩松动圈测试等巷道地质力学测试技术手段,深入揭示了深部巷道围岩变形破坏机理;针对赵楼煤矿深部巷道低围岩强度与高应力的支护难题,提出了以内注浆锚杆为核心的锚杆＋锚索＋锚注＂三锚＂联合支护体系;为反映深部巷道、硐室开挖后围岩的变形特征与支护结构受力情况,对巷道围岩收敛变形与锚杆受力情况进行了实时监测。监测结果表明,采用＂三锚＂联合支护体系能够有效地控制深部巷道围岩的大变形及底鼓,保持了巷道的长期稳定与安全。
英文摘要：
Based on the means of geological mechanic test,such as the investigation on the mineral composition of surrounding rock,the rock mechanics experiments in laboratory,the stress measurement in roadways and the tests of surrounding rock loose zone,the deformation failure mechanism in deep roadways is deeply revealed.Aimed at the supporting problem of low rock strength and the high stress in deep roadways in Zhaolou mine,we put forward the combined support system of ＂three anchors＂ which are known as anchor chain,anchor injection and anchor joint with the inside grouting bolt at the core.In order to reveal the deformation laws of surrounding rock and the loading conditions of supporting structure,the displacement of surrounding rock and axial force of rock bolt are monitored in real time.The monitoring result shows that the large displacement of surrounding rock and the heaving floor can be effectively controlled by the combined support system of ＂three anchors＂,ensuring the long-term stability and safety of roadways.
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