Rock expansion generalization analysis method

Abstract

The invention relates to the field of analysis of rock water swelling and duration relation, in particular to a rock swelling generalization analysis method which comprises the following steps: (1) constructing a rock swelling generalization analysis model; (2) determining a water supply mechanism of rock expansion in the model; (3) calculating the water absorption expansion duration of unit rock; and (4) calculating the total replenishment amount of the rock expansion water, and obtaining a time-varying rule of the water content in the rock expansion process in combination with the unit rock water absorption expansion duration. Compared with the prior art, the method disclosed by the invention has the beneficial effects that the permeation rate of the water in the rock in the rock expansion process is calculated and analyzed by constructing a generalized model of rock expansion; the change rule of the moisture content of the rock along with the time is obtained, and the change relation of the moisture content and the expansion occurrence duration in the water absorption expansion process of the hard gypsum rock are described and predicted.

Description

technical field [0001] The invention relates to the field of analysis of the relationship between rock water expansion and time duration, in particular to a generalized analysis method for rock expansion. Background technique [0002] The occurrence of rock expansion is the result of the combined action of expansive rock and water. From the indoor rock immersion test and existing research results, it can be seen that the occurrence of rock water expansion requires a process, and the process of rock water absorption and the amount of water absorption determine the rock expansion. The duration of the behavior and the degree of expansion, and this process is closely related to factors such as the supply of external water sources and the circulation of water in the rock. These factors affect and restrict each other, and it is difficult to obtain the complex relationship through testing. However, in the existing analysis methods, the observation and calculation of the water absor...

AI Technical Summary

Problems solved by technology

[0002] The occurrence of rock expansion behavior is the result of the joint action of expansive rock and water. According to the indoor rock immersion test and existing research results, the occurrence of rock water expansion requires a process, and the process and amount of water absorption of rock determine rock expansion. The length of time and the degree of expansion of the behavior, and this process is closely related to factors such as external water supply and water circulation inside the rock. These factors influence and restrict each other. It is difficult to obtain the complex relationship through testing. At present, However, in the existing analysis methods, the observation and calculation of the water absorption time of expansive rocks can only rely on the indoor rock specimens. Observation by water test, lack of theoretical calculation and prediction methods that can be used for engineering reference, resulting in the inability to predict the duration of expansion of expansive rock mass in engineering

Images