Method and device for testing ice bearing capacity

Abstract

The invention provides an ice layer bearing capacity test method and device, belongs to the field of ice engineering research, realizes the aim of scientifically and reasonably utilizing ice resources, avoids the occurrence of casualties, property loss and other serious consequences. The ice layer bearing capacity test method comprises the steps of arranging a pressure conductor at the upper surface of a tested ice layer, arranging a lower pressure distribution plate, a synchronization jack, an upper pressure distribution plate, a pressure gage and a truss above the pressure conductor in sequence, arranging a plurality of pieces of anchor rods around the pressure conductor, arranging anchor plates at the lower ends of the anchor rods to hook the lower surface of the ice layer, wherein the upper ends of the anchor rods are connected with the truss through hooks, and the sum of the contact areas of all the anchor plates with the lower surface of the ice layer is larger than the contact area of the pressure conductor and the upper surface of the ice layer, hoisting the synchronization jack to load pressure to the ice layer, and reading a value of pressure applied by the synchronization jack through the pressure gage; arranging a deflection tester at the central position of the lower pressure distribution plate, and testing the displacement of the tested ice layer; the method and the device, provided by the invention, are used for testing the ice layer bearing capacity.

Description

technical field [0001] The invention belongs to the field of ice engineering research, and in particular relates to a method and a device for testing the bearing capacity of ice layers. Background technique [0002] In winter, rivers, lakes and offshore ice formed by solidification of water provide humans with natural, solid materials and bearing platforms for people to walk, play, etc., but there is also insufficient ice bearing capacity in the process of ice utilization. , the occurrence of brittle failure will lead to serious consequences such as casualties, property losses, etc. Therefore, it is necessary to conduct in-depth research on the ice layer, grasp the nature of the ice layer, and avoid or reduce the occurrence of adverse consequences. [0003] As a special natural material, ice has relatively complex physical and mechanical properties. Its mechanical properties are greatly affected by regional and environmental factors during the formation process. The bearing ...

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Problems solved by technology

[0002] In winter, rivers, lakes and offshore ice formed by solidification of water provide humans with natural, solid materials and bearing platforms for people to walk, play, etc., but there is also insufficient ice bearing capacity in the process of ice utilization. , brittle failure occurs, leading to serious consequences such as casualties, property losses, etc., so it is necessary to conduct in-depth research on the ice layer, grasp the nature of the ice layer, and avoid or reduce the occurrence of adverse consequences

[0003] As a special natural material, ice has relatively complex physical and mechanical properties. Its mechanical properties are greatly affected by regional and environmental factors during the formation process. The bearing capacity of ice is difficult to obtain through scientific calculations. Safe Driving on River and Sea Ice" only provides a method for detecting the thickness of the ice layer, but does not really link the actual situation of the ice layer with its bearing capacity, and the evaluation of the ice layer's bearing capacity in actual life and production applications Most of them are concluded based on experience, lack of scientific and reasonable explanations and basis, and their portability is poor. Due to the differences in the environment of ice layers in different regions, the bearing capacity of ice layers is also different. There is an urgent need for a scientific and reasonable test. The method and device evaluate the bearing capacity of the ice layer, so as to realize the purpose of using ice resources scientifically and rationally, and avoid serious consequences such as casualties and property losses.

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