SU1394041A2 - Method of measuring flow rate of water, alluviation-carrying water and mud flows in non-improved waterways - Google Patents

Abstract

This invention relates to a measurement technique. The purpose of the invention is to expand the functionality. Information from sensors 1 and 2, installed respectively on large and small slopes, arrives at receiving point 3 via radio, where after demodulation in block 4 and converted to digital codes in block 5 of computer 6, the following velocity is calculated: villages in the first section, the depth of the flow is determined, in the first section, the area of the living cross section of the flow is determined, the flow rate in the first section is calculated. Similarly, the calculation occurs for the second target. Next, a transition is made to the transformation model, which determines the flow and density of the mudflow along the movement path below the second cross-section. 1 hp f-ly, 1 ill. (L

Description

with so

About 4

 N)

The invention relates to a measurement technique and serves to notify the mudslide hazard and promptly record the parameters of catastrophic mountain streams (water-borne water-bearing and mudflows), can be used in the warning system and protect the public from their impact on the development steps also for the creation of a data bank, Seli is an improvement of the invention in accordance with the author. No. 853396.

The purpose of the invention is to expand the functionality.

The drawing shows the block diagram of the device that implements the proposed method.

Along the length of the river, two sets of sensors are installed weakly in two sections, and the measuring section of the channel must be composed of irreducible or poorly defined Rocks. The first (upper) set of sensors 1 is installed on a relatively large slope (7-10), where the flow motion mode is turbulent, and the second (lower set of sensors 2 - on a relatively small slope (3-5), where the motion mode is undisturbed between them, not exceeding the first hundred meters, in order to consider the magnitude of the flow rate unchanged.

Information from the sensors arrives at the receiving point 3 via radio, where after demodulation in block 4 and converted to digital codes using peripheral devices 5 of the controlling computer 6 is processed according to the following algorithm: the average speed of movement of villages in the first section is calculated; the flow in the first trunk and the area of the living section of the flow, corresponding to

this depth, calculates the flow rate in the first cross section and the average speed of movement of villages in the second section determines the area of the living cross section of the flow in the second section and the filling level of the second cross section, reveals the dependence of the speed in the second section on the filling level, the type of the mode of operation is analyzed, the density of the mixture and the maximum shear stress of the mud mixture are determined. Next, a transition is made to the transformation model. According to the village transformation model, the flow rate and mudflow density are determined along the path below the second cross-section. The transformation model also makes it possible to predict the range of mudflow, the process of filling up the silos, and to evaluate the thickness of possible sediments.

Claims (2)

1. A method for measuring the flow of water, water carrier and debris flow in unequipped channels on the auth. No. 853396, characterized in that, in order to expand the functional capabilities, the amplitude of the elastic oscillations is additionally measured by additional sensors mounted on slope 3-5 at a distance of 100-300 m from the first two sensors mounted on slope 7-10, The average flow rate at both sites is calculated, and the parameters of the flow parameters derived from it are calculated from the values of the flow. 2. The method according to claim 1, characterized in that the sensors are installed on a section of the channel composed of slightly deformable rocks.