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A platform for research: civil engineering, architecture and urbanism
Method for filling hardened roadway bottom plate with CO2 adsorbed by coal-based solid waste cementing material
The invention discloses a method for filling a hardened roadway bottom plate with CO2 adsorbed by a coal-based solid waste cementing material, and belongs to the technical field of CO2 treatment and utilization. The influence of factors such as mining-induced stress influence, mine water soaking and trackless rubber-tyred vehicle rolling is comprehensively considered, and the roadway bottom plate strength requirement is determined; determining the concentration of a cementing material, the particle size and proportion of gangue, the required CO2 injection time and amount and the like through a laboratory test; preparing a coal-based solid waste cementing material, and injecting CO2 in the stirring process; coal-based solid waste cemented filling is conducted, and a roadway bottom plate is hardened; and detecting the strength of the hardened roadway bottom plate. When the method is applied to the process of hardening the roadway bottom plate, alkaline mineral components in the coal-based solid waste cementing material can react with CO2 to generate calcium carbonate, so that the strength of the coal-based solid waste cementing material is improved, and the dual purposes of hardening the strength of the roadway bottom plate and treating CO2 are achieved.
本发明公开了一种煤基固废胶结材料吸附CO2充填硬化巷道底板方法，属于CO2处置利用技术领域。综合考虑采动应力影响、矿井水浸泡、无轨胶轮车碾轧等因素影响，确定巷道底板强度要求；通过实验室试验确定胶结材料浓度、矸石粒径及配比，以及所需注入CO2时间和量等；制备煤基固废胶结材料，搅拌过程中注入CO2；进行煤基固废胶结充填，硬化巷道底板；检测硬化后巷道底板强度。本方法应用在硬化巷道底板过程中，煤基固废胶结材料中的碱性矿物成分可以与CO2反应生成碳酸钙，从而提高煤基固废胶结材料的强度，达到硬化巷道底板强度与处理CO2的双重目的。
Method for filling hardened roadway bottom plate with CO2 adsorbed by coal-based solid waste cementing material
The invention discloses a method for filling a hardened roadway bottom plate with CO2 adsorbed by a coal-based solid waste cementing material, and belongs to the technical field of CO2 treatment and utilization. The influence of factors such as mining-induced stress influence, mine water soaking and trackless rubber-tyred vehicle rolling is comprehensively considered, and the roadway bottom plate strength requirement is determined; determining the concentration of a cementing material, the particle size and proportion of gangue, the required CO2 injection time and amount and the like through a laboratory test; preparing a coal-based solid waste cementing material, and injecting CO2 in the stirring process; coal-based solid waste cemented filling is conducted, and a roadway bottom plate is hardened; and detecting the strength of the hardened roadway bottom plate. When the method is applied to the process of hardening the roadway bottom plate, alkaline mineral components in the coal-based solid waste cementing material can react with CO2 to generate calcium carbonate, so that the strength of the coal-based solid waste cementing material is improved, and the dual purposes of hardening the strength of the roadway bottom plate and treating CO2 are achieved.
本发明公开了一种煤基固废胶结材料吸附CO2充填硬化巷道底板方法，属于CO2处置利用技术领域。综合考虑采动应力影响、矿井水浸泡、无轨胶轮车碾轧等因素影响，确定巷道底板强度要求；通过实验室试验确定胶结材料浓度、矸石粒径及配比，以及所需注入CO2时间和量等；制备煤基固废胶结材料，搅拌过程中注入CO2；进行煤基固废胶结充填，硬化巷道底板；检测硬化后巷道底板强度。本方法应用在硬化巷道底板过程中，煤基固废胶结材料中的碱性矿物成分可以与CO2反应生成碳酸钙，从而提高煤基固废胶结材料的强度，达到硬化巷道底板强度与处理CO2的双重目的。
Method for filling hardened roadway bottom plate with CO2 adsorbed by coal-based solid waste cementing material
一种煤基固废胶结材料吸附CO2充填硬化巷道底板方法
ZHANG JIXIONG (author) / LI MENG (author) / XING SHIHAO (author) / ZHOU NAN (author) / FENG WENCHANG (author) / YAN HAO (author) / LUO XIAOBAO (author)
2024-02-27
Patent
Electronic Resource
Chinese
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