Method for measuring yellow river ice uniaxial compression strength

Abstract

The invention relates to a method for measuring yellow river ice uniaxial compression strength. The method comprises the following specific steps: 1) processing a uniaxial compression sample into a standard sample; 2) mounting a low-temperature constant-temperature test box, accessing a Pt type temperature sensor inside, and strictly controlling the temperature inside the test box through a temperature control meter; 3) starting a low-temperature constant-temperature circulating bath, and cooling the low-temperature constant-temperature test box to a set temperature; 4) placing the standard sample to perform constant-temperature process for 12 hours or above; 5) measuring the mass and the dimension of the standard sample; 6) placing the standard sample on the centre of a lower pressing head of the low-temperature constant-temperature test box; 7) starting an EDC digital controller, a computer and acquisition program; 8) setting test parameters, and loading and acquiring data; and 9) stopping loading once the sample is damaged. With the adoption of the technical scheme, ice body uniaxial compression strength feature at different temperatures under fine scale is researched, so that ascientific basis is provided for deeply analysis of cracking mechanism of a river ice cover body and ice prediction and forecast.

Description

technical field [0001] The invention belongs to the technical field of hydrology, in particular to a method for measuring the uniaxial compression strength of Yellow River ice. Background technique [0002] The Yellow River is famous all over the world for giving birth to the splendid Chinese culture and watering the splendid oriental civilization, and is known as the mother river of China. However, it has also attracted worldwide attention because of its severe sediment, frequent floods, and difficulties in governance and development. Due to the geographical location and special hydrological conditions of the river in the Inner Mongolia section of the Yellow River, ice flood disasters are relatively frequent, and ice flood poses a serious threat to water conservancy engineering facilities and the production and life of people along the Yellow River. The basic physical and mechanical properties have important guiding and practical significance for the work of preventing and...

AI Technical Summary

Problems solved by technology

[0003] At present, some research has made some breakthroughs in the mechanism and prediction of ice disasters, but little is known about the physical and mechanical properties of the Yellow River ice, and most of the existing research results are concentrated on the macro level