Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Coal-based solid waste filling multi-layer goaf grouting material as well as preparation method and application thereof
The invention discloses a coal-based solid waste filling multi-layer goaf grouting material as well as a preparation method and application thereof, and belongs to the technical field of goaf grouting filling. Aiming at the problems of ground collapse and infrastructure settlement caused by multiple layers of goaf in the construction process of infrastructures such as tunnels and the like, large stockpiling amount of coal-based solid wastes, difficulty in treatment and the like, sodium dodecyl benzene sulfonate is added into four solid wastes such as circulating fluidized bed fly ash, coal gasification slag, desulfurized gypsum and carbide slag to serve as a grinding aid for wet ball milling; then drying to obtain a solid waste mixture; the solid waste mixture, isocyanate and cement are stirred and mixed, water is slowly added in the stirring process, and the coal-based solid waste filling multi-layer goaf grouting material is obtained. The method disclosed by the invention has the characteristics of environmental protection, high solid waste mixing amount, excellent mechanical property and the like, also has the characteristics of resource conservation, simple process, high industrialization degree and the like, obviously reduces the consumption and carbon emission of high-energy-consumption resources such as cement and the like, and generates obvious economic, social and ecological benefits.
本发明公开了一种煤基固废充填多层采空区注浆材料及制备方法和应用，属于采空区注浆充填技术领域。针对隧道等基础设施建设过程中多层采空区造成的地面塌陷、基础设施沉降，同时煤基固废堆存量大、处治困难等问题，通过在循环流化床粉煤灰、煤气化渣、脱硫石膏、电石渣四种固废加入十二烷基苯磺酸钠作为助磨剂进行湿法球磨，然后干燥得到固废混合物；再将固废混合物、异氰酸酯和水泥搅拌并混合，搅拌过程中缓慢加入水，得到煤基固废充填多层采空区注浆材料。本发明方法具有绿色环保、固废掺量高、力学性能优良等特点，同时还具有节约资源、工艺简单、工业化程度高等特点，显著降低了水泥等高能耗资源的消耗和碳排放，产生显著的经济社会生态效益。
Coal-based solid waste filling multi-layer goaf grouting material as well as preparation method and application thereof
The invention discloses a coal-based solid waste filling multi-layer goaf grouting material as well as a preparation method and application thereof, and belongs to the technical field of goaf grouting filling. Aiming at the problems of ground collapse and infrastructure settlement caused by multiple layers of goaf in the construction process of infrastructures such as tunnels and the like, large stockpiling amount of coal-based solid wastes, difficulty in treatment and the like, sodium dodecyl benzene sulfonate is added into four solid wastes such as circulating fluidized bed fly ash, coal gasification slag, desulfurized gypsum and carbide slag to serve as a grinding aid for wet ball milling; then drying to obtain a solid waste mixture; the solid waste mixture, isocyanate and cement are stirred and mixed, water is slowly added in the stirring process, and the coal-based solid waste filling multi-layer goaf grouting material is obtained. The method disclosed by the invention has the characteristics of environmental protection, high solid waste mixing amount, excellent mechanical property and the like, also has the characteristics of resource conservation, simple process, high industrialization degree and the like, obviously reduces the consumption and carbon emission of high-energy-consumption resources such as cement and the like, and generates obvious economic, social and ecological benefits.
本发明公开了一种煤基固废充填多层采空区注浆材料及制备方法和应用，属于采空区注浆充填技术领域。针对隧道等基础设施建设过程中多层采空区造成的地面塌陷、基础设施沉降，同时煤基固废堆存量大、处治困难等问题，通过在循环流化床粉煤灰、煤气化渣、脱硫石膏、电石渣四种固废加入十二烷基苯磺酸钠作为助磨剂进行湿法球磨，然后干燥得到固废混合物；再将固废混合物、异氰酸酯和水泥搅拌并混合，搅拌过程中缓慢加入水，得到煤基固废充填多层采空区注浆材料。本发明方法具有绿色环保、固废掺量高、力学性能优良等特点，同时还具有节约资源、工艺简单、工业化程度高等特点，显著降低了水泥等高能耗资源的消耗和碳排放，产生显著的经济社会生态效益。
Coal-based solid waste filling multi-layer goaf grouting material as well as preparation method and application thereof
一种煤基固废充填多层采空区注浆材料及制备方法和应用
ZHOU XINXING (Autor:in) / MA ZHIBIN (Autor:in) / GUO YANXIA (Autor:in) / LU GUANGJUN (Autor:in) / MA XU (Autor:in) / ZHANG ZIYANG (Autor:in)
11.06.2024
Patent
Elektronische Ressource
Chinesisch
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