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A platform for research: civil engineering, architecture and urbanism
Measurement and calculation method for debris flow control
The invention provides a debris flow control measuring and calculating method. The debris flow control measuring and calculating method comprises the following steps: S1, determining overflowing characteristics of debris flow in a protection area according to characteristics of prevention and control engineering; s2, the position and form of a flow control dam are determined, and the initial dam height is drawn up; s3, the peak regulation storage capacity is drawn with the height of the overflow opening as the starting point; s4, according to a peak regulation and flow control formula, a peak regulation and flow passing curve is obtained through a difference method, and the peak flow and the flow passing time after peak regulation are obtained; and S5, if the peak flow after peak regulation is larger than the protection engineering characteristic flow, the step S2 is returned to increase the dam height, and otherwise, the dam height is reduced until the requirement of engineering design is met. A peak regulation overflowing curve is obtained through a difference method, peak flow and overflowing time after peak regulation are obtained, a flow control dam is arranged at the end of a drainage project to control flow, calculation is performed according to a peak regulation flow control formula, and after proper flow control and peak regulation storage capacity is set, a good peak clipping effect can be achieved, and drainage and protection pressure is reduced.
本发明提供了一种泥石流控流的测算方法，包括以下步骤：S1、根据防治工程特点确定防护区泥石流的过流特征；S2、确定控流坝的位置及形式，拟定初始坝高；S3、以溢流口高度为起点，绘制调峰库容；S4、根据调峰控流公式通过差分法求出调峰过流曲线，获得调峰后的峰值流量和过流时间；S5、如调峰后的峰值流量大于防护工程特征流量，则返回步骤S2增大坝高，反之降低坝高，直到达到工程设计的要求。通过差分法求出调峰过流曲线，获得调峰后的峰值流量和过流时间，在排导工程的端部设置控流坝进行流量的控制，按照调峰控流公式计算，在设置适当的控流调峰库容后，能起到较好的削峰作用，降低了排导和防护的压力。
Measurement and calculation method for debris flow control
The invention provides a debris flow control measuring and calculating method. The debris flow control measuring and calculating method comprises the following steps: S1, determining overflowing characteristics of debris flow in a protection area according to characteristics of prevention and control engineering; s2, the position and form of a flow control dam are determined, and the initial dam height is drawn up; s3, the peak regulation storage capacity is drawn with the height of the overflow opening as the starting point; s4, according to a peak regulation and flow control formula, a peak regulation and flow passing curve is obtained through a difference method, and the peak flow and the flow passing time after peak regulation are obtained; and S5, if the peak flow after peak regulation is larger than the protection engineering characteristic flow, the step S2 is returned to increase the dam height, and otherwise, the dam height is reduced until the requirement of engineering design is met. A peak regulation overflowing curve is obtained through a difference method, peak flow and overflowing time after peak regulation are obtained, a flow control dam is arranged at the end of a drainage project to control flow, calculation is performed according to a peak regulation flow control formula, and after proper flow control and peak regulation storage capacity is set, a good peak clipping effect can be achieved, and drainage and protection pressure is reduced.
本发明提供了一种泥石流控流的测算方法，包括以下步骤：S1、根据防治工程特点确定防护区泥石流的过流特征；S2、确定控流坝的位置及形式，拟定初始坝高；S3、以溢流口高度为起点，绘制调峰库容；S4、根据调峰控流公式通过差分法求出调峰过流曲线，获得调峰后的峰值流量和过流时间；S5、如调峰后的峰值流量大于防护工程特征流量，则返回步骤S2增大坝高，反之降低坝高，直到达到工程设计的要求。通过差分法求出调峰过流曲线，获得调峰后的峰值流量和过流时间，在排导工程的端部设置控流坝进行流量的控制，按照调峰控流公式计算，在设置适当的控流调峰库容后，能起到较好的削峰作用，降低了排导和防护的压力。
Measurement and calculation method for debris flow control
一种泥石流控流的测算方法
HU AIGUO (author) / WANG CHUNHONG (author)
2024-08-09
Patent
Electronic Resource
Chinese
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