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本文在相似材料模型试验的基础上，探讨了短锚杆群支护碎裂岩体中电耙道的机理，为生产试验提供了理论基础及有关参数。试验表明，１．２ｍ长、０．４ｍ间距的金属短锚杆群支护破碎岩体的电耙道，可以有效控制电耙道的稳定，取得满意的结果。短锚杆群支护机理是用预应力锚杆加固围岩，在锚杆支护范围内形成一个承载环，以承受地压
Based on similar material model tests, this paper discusses the mechanism of the electric rake track supported by the short bolt group in the fractured rock mass, which provides the theoretical basis and relevant parameters for the production test. The experiments show that the short rake of metal with a length of 1.2m and the distance of 0.4m supports the electric rake of the broken rock mass, which can effectively control the stability of the electric rake and achieve satisfactory results. Short anchor group support mechanism is the use of prestressed anchor reinforcement surrounding rock bolt support within the formation of a carrier ring to withstand ground pressure