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现有的确定风沙流输沙强度之方法在运用到防沙工程设计上时,常因误差较大,难以满足工程需要。为解决这一问题,所提出的方法是首先设置起到阻沙作用的高立式沙障,然后在一段时间后,如一年或一个风季后,通过量测高立式沙障所在处的积沙量,再结合气象资料等,计算而得风沙流输沙强度。这种反向的“由果推因”之方法虽然需要的时间较长,却在一般情况下低于公路工程等的设计周期,可满足工程设计对时间的要求。而且以这种方法确定的风沙流输沙强度与实际出入不大,并经实践证明是可以满足防沙工程设计需要的。
Existing methods to determine the sand transport sand strength in the use of sand control engineering design, often due to large errors, it is difficult to meet the needs of the project. In order to solve this problem, the proposed method is to first set up a high-rise sand barrier that plays a role as a sand blocker, and then measure the height of a vertical sand barrier after a period of time, such as one year or one windy season Sediment volume, combined with meteorological data, calculated by the sand transport sand transport intensity. Although the reverse “cause-by-cause” approach requires a long time, it is generally lower than the design cycle of highway projects and can meet the time requirements of engineering design. Moreover, the sand transport flux determined by this method has little difference with the actual sand transport, and has been proved to meet the design requirements of sand control projects.