Intelligent measuring weir seepage flow monitoring integrated device and measuring method thereof

Abstract

The invention relates to the technical field of hydraulic dam prototype safety and seepage flow monitoring, in particular to an intelligent measuring weir seepage flow monitoring integrated device and a measuring method thereof. The intelligent measuring weir seepage flow monitoring integrated device comprises a measuring weir meter; the measuring weir meter comprises a cylinder and a sensing device; a water level observation chamber is arranged in the cylinder; the water level observation chamber is provided with a floating observation point; the top of the cylinder is provided with the sensing device; the sensing device comprises a protective shell; the protective shell is provided with a threaded protective cover; a laser displacement sensor is arranged in the protective shell; a ventilation chamber I is arranged in the protective shell; the ventilation chamber is located below the laser displacement sensor; a plurality of vent holes I are formed in the protective shell; the laser displacement sensor is connected to a data processing end through a communication cable; a water passing pipe hole I is formed in the cylinder; and a water diversion pipe is arranged on the water passing pipe hole I. A water level observation point, a glass tube and the measuring weir meter on a weir are connected in series to form a communicating vessel; and a weir head of the measuring weir can be effectively measured.

Description

technical field [0001] The invention relates to the technical field of hydraulic dam prototype safety monitoring seepage flow monitoring, in particular to an intelligent monitoring integrated device for measuring water weir seepage flow and a measuring method thereof. Background technique [0002] Seepage flow monitoring is to observe the water seepage of hydraulic dam structures and their banks and dam foundations under the action of water head pressure. Whether the operation is normal provides decision-making basis for the safe operation and maintenance of the dam. Seepage monitoring The mandatory monitoring items for the safety monitoring of hydraulic dam prototypes are currently mostly determined through the combination of water gauges, water level probes, water measuring weirs and water weir gauges. [0003] The sensors used in conventional water measuring weir meters include hydraulic sensors, capacitive sensors, inductive sensors, and magnetic sensors. The seepage f...

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Problems solved by technology

[0003] The sensors used in conventional water measuring weir meters include hydraulic sensors, capacitive sensors, inductive sensors, and magnetic sensors. The seepage flow calculation formula of different weir types calculates the seepage flow, but the cost of the above sensors is relatively high

[0004] In addition, the water measuring weirs, water scales (for manual observation), and water measuring weir meters that make up the conventional seepage monitoring system are usually installed and buried separately. The individual independence is strong, and it is difficult to form an organic unity. In engineering practice, there are usually the following problems: 1. ) water measuring weir meter and water gauge are installed and buried in different positions, so that there is a certain difference in the observed values ​​of the two. In manual comparison, it is often necessary to use the manual reading of the water gauge to check the reading of the water measuring weir meter. The two engineering locations are different. The differences in observed values ​​from the previous observations reduce the referenceability and comparison of water gauge readings during manual comparison; 2) The seepage flow in the drainage corridor of the dam body is small, and the channel depth is usually small. Usually, no water gauge is set. When manually measuring the water head on the weir weir, tape measure and vernier caliper are usually used for rough measurement, the measurement accuracy is low, and the error is large, especially in the later period of regular comparison. It is difficult to accurately obtain the instrument observations (manual readings of the water gauge and readings of the water weir meter) of the weir opening position of the conventional seepage monitoring system. Certain technical difficulty and operational feasibility

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