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波球体育直播
波球体育直播
波球体育直播
波球体育直播
波球体育直播
咨询服务热线:
18732886666

喷锚支护

发布时间:2020-05-23浏览次数:
喷锚支护

        喷锚支护(shotcrete-bolt support)指的是借高压喷射水泥混凝土和打入岩层中的金属锚杆的联合作用(根据地质情况也可分别单独采用)加固岩层,分为临时性支护结构和永久性支护结构。 喷混凝土可以作为洞室围岩的初期支护,也可以作为永久性支护。喷锚支护是使锚杆、混凝土喷层和围岩形成共同作用的体系,防止岩体松动、分离。把一定厚度的围岩转变成自承拱,有效地稳定围岩。当岩体比较破碎时,还可以利用丝网拉挡锚杆之间的小岩块,增强混凝土喷层,辅助喷锚支护。
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波球体育直播
联系电话:18732886666
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波球体育直播
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