基于塊體化程度和云模型的露天礦邊坡穩(wěn)定性分級(jí)評(píng)價(jià)方法
發(fā)布時(shí)間:2018-05-25 01:33
本文選題:露天礦山 + 邊坡 ; 參考:《礦冶工程》2017年04期
【摘要】:針對(duì)當(dāng)前邊坡穩(wěn)定性分級(jí)方法不能全面刻畫巖體的完整性且無法同時(shí)考慮影響因子隨機(jī)性和模糊性的問題,引入了塊體化程度概念,并基于云模型理論,提出了一種適用于露天礦巖質(zhì)邊坡的穩(wěn)定性分級(jí)評(píng)價(jià)方法。該方法用塊體化程度從三維空間角度描述巖體的完整性;將云模型應(yīng)用到穩(wěn)定性分級(jí)評(píng)價(jià)的各個(gè)環(huán)節(jié),并借助層次分析法和有限差分?jǐn)?shù)值模擬手段,可以充分考慮影響因子的隨機(jī)性和模糊性,減小分級(jí)評(píng)價(jià)過程中人為因素的影響。結(jié)合工程實(shí)例,驗(yàn)證了該方法的可行性和有效性。
[Abstract]:In view of the problem that the current slope stability classification method can not fully describe the integrity of rock mass and can not consider the randomness and fuzziness of the influencing factors at the same time, the concept of block degree is introduced and based on cloud model theory. In this paper, a classification method for evaluating the stability of rock slopes in opencast mines is presented. In this method, the integrality of rock mass is described from the angle of three-dimensional space by using the degree of block, and the cloud model is applied to every step of stability grading evaluation, and the analytic hierarchy process (AHP) and finite difference numerical simulation are used to describe the integrity of rock mass. The randomness and fuzziness of the influencing factors can be fully considered to reduce the influence of human factors in the process of grading evaluation. The feasibility and effectiveness of the method are verified by an engineering example.
【作者單位】: 中國地質(zhì)大學(xué)(武漢)工程學(xué)院;
【基金】:國家自然科學(xué)基金(41672317)
【分類號(hào)】:TD804
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本文編號(hào):1931492
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