Dynamic morphological optimization method and system for soil-rock mixed slopes containing multiple horizontal weak layers

By dynamically optimizing the multi-layer horizontal weak-layer soil-rock mixed slopes of open-pit coal mines, the problem of slope instability during maximum mining is solved, and the safe and stable slope mining is achieved to maximize the economic benefits of coal mines.

CN118586165BActive Publication Date: 2025-04-01JARUD BANNER ZHAHANAOER COAL IND CO LTD +1
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Patent Information

Application Number
CN202410633840.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-21
Publication Date
2025-04-01
Estimated Expiration
2044-05-21

AI Technical Summary

Technical Problem

The prior art cannot guarantee the stability of open-pit coal mine slopes when maximizing mining, resulting in increased safety risks.

Method used

By obtaining the width, safety reserve coefficient and stability coefficient of each flat plate above each weak layer in the soil-rock mixed slope, the optimization process is carried out, including determining the average flat plate width, optimizing the flat plate width, and secondary optimization based on the three-dimensional support effect, the optimal width of each flat plate in each weak layer on the slope is obtained.

Benefits of technology

On the premise of ensuring the safety and stability of the slope, coal resources should be mined to the greatest extent, improve the overall economic benefits of open-pit coal mines, reduce resource losses, and reduce corporate efficiency risks.

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Abstract

The present application proposes a method and system for dynamic optimization of the morphology of a soil-rock mixed slope containing multiple horizontal weak layers, the method comprising: obtaining the width of each flat plate above each weak layer in the soil-rock mixed slope, the safety reserve coefficient and the stability coefficient of each weak layer; determining the average flat plate width of each weak layer according to the width of each flat plate above each weak layer; optimizing the width of each flat plate above each weak layer in the soil-rock mixed slope according to the average flat plate width of each weak layer, the safety reserve coefficient and the stability coefficient of each weak layer, and obtaining the first optimized width of each flat plate above each weak layer in the soil-rock mixed slope; optimizing the bottom width of each weak layer in the soil-rock mixed slope according to the three-dimensional retaining effect, and based on the bottom width of each weak layer, performing secondary optimization on the first optimized width of each flat plate to obtain the optimal width of each flat plate in each weak layer of the slope. The technical solution proposed in the present application can extract coal resources to the maximum extent under the premise of ensuring the safety and stability of the slope.
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