Anti-slide pile design optimization method based on instability risk of slope system

Abstract

The invention provides an anti-slide pile design optimization method based on the instability risk of a slope system. The method comprises the steps that statistical characteristics of uncertainty parameters of a slope are determined; a slope stability analysis model is established; the related failure probability of the slope in an initial state is calculated, and a regional failure probability graph is drawn; a slope anti-slide pile design scheme is initially set according to the regional failure probability graph; anti-slide torque is calculated; the related failure probability of the slope of the scheme after reinforcement is calculated, and reinforcement effects of different schemes are evaluated; the scheme with the lowest instability risk is selected as an optimal anti-slide pile design scheme; whether the optimal scheme in the step 7 meets the target failure probability is judged, and if not, the steps 4-8 are repeated till reliability is met; an alternative design space is refined; and economy is considered, and the design scheme meeting the target failure probability and with the lowest cost is found. Through the method, the instability risk of the slope system can be effectively lowered, the method is more economical, and the influence of multiple failure modes on the reinforcement scheme can be reasonably considered.

Description

technical field [0001] The invention belongs to the technical field of slope reinforcement, and in particular relates to an anti-slide pile design optimization method based on the instability risk of a slope system. Background technique [0002] Landslide disasters induced by slope instability have become one of the three major global geological disasters alongside earthquakes and volcanoes. Landslide disasters seriously threaten the safety of life and property of local residents, leading to problems such as house collapse, traffic jams, barrier lakes formed by river cut-offs, and surges in reservoirs, causing a large number of direct and indirect economic losses, seriously restricting water conservancy and hydropower projects, The development of traffic engineering, civil engineering and many other fields. Therefore, it is very important for landslide research, forecast and prevention. [0003] As a common engineering reinforcement method, anti-slide piles are widely used...

AI Technical Summary

Problems solved by technology

However, at present, there are few optimization problems of slope reinforcement design based on quantitative risk assessment, which makes it difficult for reinforcement measures to effectively reduce the risk of slope instability. , reliability and design economy, the design optimization of anti-sliding piles is a key difficulty

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