Abstract According to the factors affecting the stability of the integral load-bearing structure of the surrounding rock of a retained gob-side entry, the load-bearing capacity of roadside supports with flexible concrete formwork is studied to propose a new integrated supporting control technology. This approach is based on a bolt and anchor cable support with a wire mesh for retaining the surrounding rock of a roadway. Moreover, the core of this technology involves roof bolts and steel beam supports with a steel–plastic wire mesh on the side of the gob beside the retained roadway, combined with the strengthening support of dual single props with upper and lower crossbars in the roadway. The roof-strata pre-stressed anchorage composite load-bearing structure, roadside flexible concrete formwork load-bearing structure, wire-mesh wall structure, solid coal wall load-bearing structure, and four-in-one load-bearing and stress-transferring control device in the retained roadway are formed in the surrounding rock of the retained roadway using integrated supporting control technology. Additionally, their supporting mechanisms are analyzed, and the corresponding construction technologies are clarified. Practical field results indicate that the integral load-bearing structure of the surrounding rock of the retained roadway formed by the integrated supporting control technology effectively controls the deformation and destruction of the surrounding rock, ensuring the success of the retaining roadway. Furthermore, dual gas channels are successfully constructed using this technology, thereby validating its efficient gas extraction.

中文翻译：

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柔性混凝土模板沿空留巷围岩整体承重结构稳定性分析

摘要 针对留空沿空巷围岩整体承重结构稳定性的影响因素，研究了柔性混凝土模板路侧支护的承载能力，提出了一种新的综合支护控制技术。这种方法基于螺栓和锚索支架，带有金属丝网，用于保持道路的围岩。此外，该技术的核心是在保留巷道旁采空区侧边采用钢塑丝网的屋盖螺栓和钢梁支撑，并结合巷道内上下横杆的双单支柱加强支撑。屋面-地层预应力锚固复合承重结构、路边柔性混凝土模板承重结构、丝网墙结构、采用一体化支护控制技术，在保留巷道围岩中形成固体煤壁承重结构，保留巷道四合一承载与传力控制装置。此外，还分析了它们的支撑机理，阐明了相应的施工技术。实际现场结果表明，采用一体化支护控制技术形成的挡土巷道围岩整体承重结构，有效控制了围岩的变形和破坏，保证了挡土巷道的成功。此外，使用该技术成功构建了双气体通道，从而验证了其有效的气体提取。采用综合支护控制技术，在保留巷道围岩中形成保留巷道四合一承载与传力控制装置。此外，还分析了它们的支撑机理，阐明了相应的施工技术。实际现场结果表明，采用一体化支护控制技术形成的挡土巷道围岩整体承重结构，有效控制了围岩的变形和破坏，保证了挡土巷道的成功。此外，使用该技术成功构建了双气体通道，从而验证了其有效的气体提取。采用综合支护控制技术，在保留巷道围岩中形成保留巷道四合一承载与传力控制装置。此外，还分析了它们的支撑机理，阐明了相应的施工技术。实际现场结果表明，采用一体化支护控制技术形成的挡土巷道围岩整体承重结构，有效控制了围岩的变形和破坏，保证了挡土巷道的成功。此外，使用该技术成功构建了双气体通道，从而验证了其有效的气体提取。