Method of distinguishing collapse causing factors of karst collapse

Abstract

The invention relates to a method of distinguishing collapse causing factors of karst collapse. The method of distinguishing the collapse causing factors of the karst collapse includes a first step of confirming surveying and mapping and geometric element of the karst collapse, a second step of conducting systematic engineering geology and detection to formation conditions and collapse causing factors of the karst collapse of an evaluating area and confirming the qualitative and quantitative causing factors of the karst collapse, a third step of confirming reference variables of the karst collapse, a fourth step of establishing a relevance evaluating equation of the causing factors of the karst collapse, a fifty step of analyzing and evaluating of the evaluation precision of the relevance evaluating equation of the causing factors of the karst collapse, and a sixth step of conducting quantitative analysis and evaluation of collapse causing degree and a function of the collapse causing factors of the karst collapse. The method of distinguishing the collapse causing factors of the karst collapse achieves conversion from the qualitative variable to the quantitative variable by means of division of qualitative variable according to the value, solves the problem that multiple correlations mutually convert among various factors and is the evaluating method with an important practical value.

Description

technical field [0001] The invention relates to a karst collapse evaluation and prevention technology, in particular to an evaluation method for identifying karst collapse-causing factors and the magnitude of their influence. Background technique [0002] Karst collapse is a common and extremely harmful geological disaster and environmental geological problem in karst developed areas. Its formation conditions are complex, and there are many factors causing collapse, which are not only closely related to regional geological and background conditions, but also closely related to its environment, groundwater and human activities. However, the magnitude and degree of the above-mentioned collapse-causing factors on karst collapse are different. The collapse-causing factors are not only numerous, but also extremely complex in composition, including quantitative collapse-causing factors and qualitative collapse-causing factors. Therefore, how to Identify the degree of influence an...

AI Technical Summary

Problems solved by technology

This method is based on the formation conditions and main collapse-causing factors of karst collapse, and is divided into strong, medium, and weak according to the degree of influence on karst collapse. Combined with the existing practical experience, empirical indicators are given respectively. This method is only an empirical method. Qualitative testing does not quantify the factors causing collapse, so it is difficult to specifically evaluate the differences among the factors causing collapse; the second is the geological survey method

This method uses geological survey to analyze the collapse-causing factors of karst collapse. The disadvantage is that the geological survey disturbs the undisturbed soil and destroys the natural environment. ; The third is the quantitative and semi-quantitative methods that intersect disciplines such as statistics, operations research, and systematics

This method is to establish a model through statistical data, and use the model to conduct quantitative analysis of the collapse-causing factors. The disadvantage of this type of method is that it can only model and analyze the quantitative collapse-causing factors, and cannot analyze and detect the qualitative collapse-causing factors. It is concluded that there is a gap between the model and the actual karst collapse, resulting in a large error between the quantitative index and the actual situation. The results are different under different conditions, and the prediction effect is often unsatisfactory, which affects the further control of karst collapse.

Images