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为研究中国东北地区典型气候条件对泥质岩崩解特性的影响,以阜新海州露天矿泥质岩为研究对象,探讨了干–湿循环和冻–融循环作用对泥质岩崩解特性的影响。对不同试验条件下泥质岩浸泡液的p H值、TDS进行了测试;分析了泥质岩的崩解比、空隙率和吸水率变化情况;利用X射线衍射(XRD)、荧光光谱分析,测试岩样矿物化学成分。结果表明,相对于干–湿循环作用而言,冻–融循环作用会对泥质岩崩解性产生明显影响;空隙率及吸水率均对泥质岩的崩解有重要作用;冻–融循环对泥质岩可溶性盐类的溶解影响不大;考虑冻–融循环对泥质岩崩解特性的影响对东北地区工程建设有重要意义。
In order to study the influence of the typical climatic conditions in Northeast China on the disintegration characteristics of muddy rocks, taking the open-pit mudstone in Fuxin Haizhou as the research object, the effects of dry-wet and freeze-thaw cycles on the disintegration characteristics of muddy rocks Impact. The p H value and TDS of argillaceous soaking solution under different experimental conditions were tested. The disintegration ratio, porosity and water absorption of argillaceous rock were analyzed. XRD, Test rock-like mineral chemical composition. The results show that the freeze-thaw cycle has a significant effect on the disintegration of the muddy rocks compared with the dry-wet cycles. Both the porosity and the water absorption rate play an important role in the disintegration of the muddy rocks. The freeze- Circulation has little effect on the dissolution of soluble salts of argillaceous rocks. Considering the effect of freeze-thaw cycles on the disintegration characteristics of argillaceous rocks, it is of great significance to engineering construction in Northeast China.