Compound rectangular flow weir for monitoring water flow of montane stream

A water flow, rectangle technology, applied in the direction of measuring flow/mass flow, measuring device, liquid/fluid solid measurement, etc., can solve the problems of poor accuracy, unreliable and unreachable mountain engineering construction, and achieve scientific and reasonable improvement. reliability, reliable hydrogeological monitoring data, and the effect of resisting scour

Active Publication Date: 2018-11-20
CHINA UNIV OF GEOSCIENCES (WUHAN) +1
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  • Abstract
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  • Application Information

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Problems solved by technology

At present, the flow measurement methods of surface and underground ditches in mountainous areas in the field, such as sounding rods, flow meters, or visual measurement combined with estimated flow, have poor accuracy and cannot meet the requirements of relevant monitoring work. There are also some indoor flow w

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  • Compound rectangular flow weir for monitoring water flow of montane stream
  • Compound rectangular flow weir for monitoring water flow of montane stream
  • Compound rectangular flow weir for monitoring water flow of montane stream

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[0011] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0012] Please refer to figure 1 , the embodiment of the present invention provides a compound rectangular flow weir for monitoring the water flow of rivers and ditches in mountainous areas, including a left weir body 1, a right weir body 3, a base 4, and a water level monitoring device hole 5; the left weir body 1 It is a symmetrical structure with the right weir body 3, and the left weir body 1 includes a rectangular structure adjacent to the river bank and a stepped rectangular structure; the left weir body 1, the right weir body 3 and the base 4 form a duplex structure Rectangular weir mouth 2, the compound rectangular weir mouth 2 includes the first layer of thin-walled weir mouth 21 and the second layer of brick-laying weir mouth 22, the first lay...

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Abstract

The invention discloses a compound rectangular flow weir for monitoring water flow of a montane stream. The compound rectangular flow weir comprises a left side weir body, a compound rectangular weir,a right side weir body, a substrate, and a water level monitoring device hole, wherein the left side weir body, the right side weir body and the substrate form the compound rectangular weir; the compound rectangular weir comprises a first layer of thin-wall weir and a second layer of brickwork weir; the water level monitoring device hole is located in a riverbed at the upstream of the flow weir to fix a water level monitoring device. The first layer of thin-wall weir is used for monitoring low flow of streams in mountains and tunnels; the second layer of brickwork weir is built by bricks withcement and is used for monitoring high flow in a flood season. The whole compound thin-wall weir obtains flow data calculated by adopting water level measurement, and no manual monitoring is needed,so that the labor cost is greatly reduced. The scientific rationality and the flow monitoring accuracy of the flow weir are improved; the flow and a changing rule of gulley water are precisely monitored; scientific and accurate hydrogeological data is provided for mountain engineering construction.

Description

technical field [0001] The invention relates to the technical field of hydraulic flow measurement, in particular to a compound rectangular flow weir for monitoring the water flow of river ditches in mountainous areas. Background technique [0002] In recent years, with the construction of high-speed railways and highway tunnels in mountainous areas, in order to prevent major water inrush accidents during the construction of tunnels, it is necessary to carry out special projects on mountainous tunnel engineering surveys, especially hydrogeology in karst areas. It is especially important to monitor groundwater and surface water in small watersheds in mountainous areas where tunnels pass through. At present, the flow measurement methods of surface and underground ditches in mountainous areas in the field, such as sounding rods, flow meters, or visual measurement combined with estimated flow, have poor accuracy and cannot meet the requirements of relevant monitoring work. There ...

Claims

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Application Information

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IPC IPC(8): G01F1/00
CPCG01F1/002G01F1/007
Inventor 万军伟常威王宗星王艺霖项立磊胡庐峰
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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