A device for measuring ice layer tension pressure and its installation method

Abstract

The invention discloses an ice layer pulling pressure measuring device and an installation method thereof. The ice layer pulling pressure measuring device comprises a base fixed on a dam, the base isconnected with one side of a pulling pressure sensor, a force bearing disc is connected to the other side of the pulling pressure sensor, and a protective sleeve pipe is arranged on the outer surfaceof the pulling pressure sensor. According to the ice layer pulling pressure measuring device and the installation method thereof, structure is designed by combining the pulling pressure sensor, a setdevice capable of measuring ice layer pulling pressure in real time is manufactured; through reasonable arrangement and auxiliary equipment, the ice layer pulling pressure suffered by a water conservancy project in a cold region in winter can be measured; and the ice layer pulling pressure measuring device and the installation method thereof has positive guiding significance to the accurate research on the mechanical property and change status of ice as well as the agricultural production and water conservancy construction of the cold region.

Description

technical field [0001] The invention relates to the technical field of concrete construction in water conservancy projects, in particular to a device for measuring the tensile pressure of ice layers and an installation method thereof. Background technique [0002] Freezing is a common natural scene under low temperature conditions, and it is more common in winter in Northwest my country. A considerable number of water conservancy projects (including dams, water diversion channels, embankments, etc.) have been built successively in these areas. When the winter cold wave comes and the temperature drops, these hydraulic structures will be harmed by freezing. Water conservancy projects in cold regions of my country will expand in volume after freezing in winter as the temperature fluctuates, and the resulting static ice pressure will seriously damage the dam body and auxiliary structures; while the ice sheet in the reservoir area generates static ice pressure, it will The rise a...

AI Technical Summary

Problems solved by technology

[0008] The main disadvantage of this method is that due to the complex and harsh on-site test environment and the limitation of detection technology, resulting in lack of data and lack of continuous integrity, it is often difficult to test the complete change process of ice mechanical strength values

[0011] The shortcomings of this method are high investment, outdated detection methods, and poor real-time performance. Second, there is a certain difference with the field environment, so the obtained data has a larger error than the actual environment.

[0014] The disadvantage of this method is that the fiber grating has cross-sensitivity to temperature and strain, and temperature compensation is required when measuring ice pressure, which needs to be addressed in practical applications

Secondly, this method is mainly used to measure the static ice pressure, and there is no effective measurement method for the frozen ice pressure in the reservoir area of ​​hydraulic engineering.

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