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                制作护筒时有哪些注意点

                发布时间:2021-05-14  点击次数:73 次
                       制作护筒应按照设计要求,设计无要求时★应注意以下几点:
                       1、可游戏大厅采用钢板制作,也可采用钢筋混凝土来制ㄨ作。制作成型的产品应适合钻孔方式对产品刚度和强度要△求。钢质产品适用于不◎同施工条件,安全性高,可多@次使用。钢筋混々凝土质产品可在水深不大的钻孔ξ 中使用。
                       2、护筒厚度根据制作材♀料、孔位水文地质条件、施工方法和设计桩径、埋深和埋徐庶三国杀设方法等条件综合选定,需要№时应通过计算确定。一般钻孔桩施工钢质产品厚度宜采用6-12mm,钢筋混凝土质产品宜采用8-250px。
                       3、护筒内径应适当大于设♀计桩径,具体数值应根据采用的钻机边锋网络游戏类型来确定。

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