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桥头錐体护坡鋪砌数量的計算,一般书籍很少谈问或在部份杂志上有些文章也不詳尽。笔者最近因工作关系,會接触到錐体护坡的計算问题。得机会收集部份资料从事整理,发現一些計算方法互有出入。为了謀求計算接近实际,以正确指导施工备料。特将自己的学习心得整理出来,供同志們参考,不妥之处希予指正。 (一)以往計算方法的概述: Ⅰ、第1类計算法——椭圆錐表面积法 (1)铁路标准设计参考图大——139上的計算公式(图1)
The calculation of the amount of bridge head cone slope paving is rarely discussed in general books or in some magazines. Recently, the author will be exposed to the calculation of cone slope protection due to working relationship. Have the opportunity to collect some of the information to organize, and found that some calculation methods are different. In order to seek calculations that are close to reality, the construction materials are correctly guided. Specializing in arranging his own learning experience for reference by comrades, I would like to correct my mistakes. (I) General description of previous calculation methods: I. Type 1 calculation method - elliptic cone surface area method (1) Reference standard for railway standard design - formula for calculation on 139 (Fig. 1)