非爆机械化开采的可行性与待截割矿体周围松动区的厚度之间有着密切联系，研究待截割矿体周围松动区厚度对于合理进行机械化开采具有重要意义。综合考虑松动区厚度的成因及特点，选取了单轴抗压强度、岩体质量等级、埋深、岩石容重和开挖跨度5个影响因素作为指标。首先利用从多个矿山现场收集的69组数据，建立了松动区厚度的回归预测模型，并通过熵权法评价5个影响因素对于松动区厚度的影响权重；然后根据所得的松动区厚度预测模型对开磷马路坪矿开采现场松动区厚度进行预测，并依此建立了基于矿岩开挖松动区厚度的非爆机械化开采判据；最后对现阶段开磷马路坪矿非爆机械化开采的可行性进行评价。结果表明：本研究得到的基于矿岩开挖松动区厚度的非爆机械化开采判据，可以较好地评判开磷马路坪矿非爆机械化开采的可行性和合理性。

Deep mining has gradually become a new trend in underground mining，and the non-explosive mechanized mining method，as one of the alternatives to conventional drilling and blasting excavation，has shown great advantages in rock-breaking efficiency and safety.Non-explosive mechanized mining of hard rock mines is a technical problem that needs to be solved to realize continuous mining and safe，efficient and green development of deep resources in hard rock mines.In the roadway excavation，the initial stress state of the surrounding rock is destroyed to form a secondary stress field resulting in the phenomenon of stress concentration，which will form a “crushing zone” around the surrounding rock，called the excavation damage zone （EDZ）.The feasibility of non-explosive mechanized mining is closely related to the thickness of the EDZ around the ore to be cut.The existing research shows that the thickness of the EDZ is mainly affected by rock properties，ground stress，geological conditions and excavation parameters and other factors.So in this paper，the characteristics of the EDZ thickness were considered comprehensively，and five influencing factors of uniaxial compression strength，rock mass grade，burial depth，rock bulk and excavation span were selected.Through multiple regression analysis，using 69 sets of data collected at multiple mine sites，a functional relationship between the thickness of the EDZ and five influencing factors was established，so as to obtain the prediction model of the thickness of the EDZ.The results were obtained by comparing the measured data of the EDZ thickness with the prediction values obtained from the EDZ thickness prediction model.The high determination coefficient and the low root mean squared error show that the established EDZ thickness prediction model and the non-explosive mechanized mining criterion have good reliability.In addition，the weights of the five influencing factors on the thickness of the EDZ were evaluated by the entropy weight method and ranked in order.The results show that the uniaxial compressive strength has the largest influence on the thickness of the EDZ，the rock mass grade has the smallest influence on the thickness of the EDZ，and the burial depth，rock bulk density，and excavation span have increasing influence on the thickness of the EDZ.The regression prediction model can better predict the thickness of the EDZ at Kailin Maluping mine，and the predicted value meets the requirements of non-explosive mechanized mining，verifying the feasibility and rationality of non-explosive mechanized mining.