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由于某煤矿皮带廊处于恶劣的地面工业环境中,导致材料、构件及结构损伤劣化严重。依据对皮带廊主体结构的可靠性鉴定及损伤劣化机理分析,结合皮带廊功能要求,首先,对其已损伤劣化部分进行修复;然后,对钢筋混凝土支承框架采用增大截面和用碳纤维加强材料法进行增强,对廊身部分的预应力钢筋混凝土桁架、槽钢梁分别采用玻璃纤维加强材料、用碳纤维加强材料及增设钢支撑法进行增强;最后,对各部分进行面层维护。此外还对施工关键技术进行了探讨。
As a coal mine belt corridor in the harsh industrial environment in the ground, resulting in material, components and structural deterioration deteriorated. According to the reliability identification of the main body of the belt gallery and the analysis of the mechanism of the damage and deterioration, firstly, the damaged part of the belt was repaired by the functional requirements of the belt corridor. Then, the reinforced concrete support frame was made of enlarged section and reinforced with carbon fiber Reinforced, the prestressed reinforced concrete trusses and channel girders in the porch body are reinforced with glass fiber reinforced materials, reinforced with carbon fiber reinforced materials and steel support method; and finally, the surface of each part is maintained. In addition, the construction of key technologies are also discussed.