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由于橡胶坝(又称织物坝)具有造价低、安装方便、坝高容易调节等一系列的优点,其应用日益广泛.目前国内在计算坝袋的外型及内应力时,大多用安瓦(Anwar)的方法.它是先假定坝袋的最大高度然后以此点分别向前向后推算坝袋的形状及锚固点的位置.这种方法应用于设计时,可确定坝袋的尺寸.但在工程建成后,为了检验外形,即坝袋的长度、锚固点确定以后,计算坝袋在各种不同的外界及内部条件下的坝袋形状及应力时,显然不能用安瓦的方法.
As the rubber dam (also known as the fabric dam) has the advantages of low cost, convenient installation, dam height adjustment and a series of advantages, its application is more and more widely.At present in the calculation of the dam bag appearance and internal stress, Anwar) method, which assumes the maximum height of the dams and then forwards and backwards the shape of the dams and the position of the anchorage points, respectively. This method, when used in design, determines the size of the dams, After the completion of the project, in order to test the shape, that is, the length of the dam bag, anchorage point is determined after the calculation of the dam bag in a variety of different external and internal conditions of the dam bag shape and stress, apparently can not use the watts method.