1 引言

露天采礦臺(tái)階的破壞形式主要有三種: 平面破壞, 楔形破壞和巖石墜落. 其中楔形破壞是最常見(jiàn)的破壞形式，如下圖所示。本文使用機(jī)器學(xué)習(xí)方法在GeotechSet數(shù)據(jù)集內(nèi)調(diào)查了這個(gè)方向最相關(guān)的研究工作。 

露天采礦臺(tái)階穩(wěn)定性分析方法(Bench Scale Stability Analysis)

露天采礦臺(tái)階設(shè)計(jì)(Bench Design)方法

Swedge: 巖石邊坡楔形破壞穩(wěn)定性分析

2 調(diào)查方法

如果使用C(n,3)的組合查詢方法，那么對(duì)"bench wedge failure stability"將會(huì)得出大量的相關(guān)文檔，由于我們的著重點(diǎn)在"bench", 因此分開(kāi)運(yùn)行能夠縮小范圍，得到更精確的解答，然后根據(jù)搜索的數(shù)據(jù)映射出文檔的名稱。運(yùn)行結(jié)果如下：

(I) bench wedge stability

這個(gè)搜索得到6個(gè)文檔：

(1) Feasibility Pit Slope Design

(2) Kinematic assessment of composite failure mechanisms in pit slopes

(3) Site investigation and geological data collection

(4) chuquicamata

(5) Bench Scale Stability Analysis

(6) Geotechnical Review of LOM Cariboo Pit and Springer Pit Slope Designs

(2) bench wedge failure

這個(gè)搜索得到8個(gè)文檔：

(1) Assessing slope performance

(2) Characterisation of High Rock Slopes using an Integrated Numerical Modelling

(3) Kinematic assessment of composite failure mechanisms in pit slopes- a novel slip surface identification algorithm for DFN models

(4) Monitoring and managing large deformation pit slope instabilities at a British Columbia copper mine

(5) Site investigation and geological data collection

(6) Slope Stability Analysis and Design Based On Probability Techniques at Cassiar Mine

(7) Geotechnical Review of LOM Cariboo Pit and Springer Pit Slope Designs

(8) rock wedge failure

可以看出，其中一部分文檔在兩個(gè)搜索結(jié)果中都有，這顯示出這些文檔是最相關(guān)的研究工作。

[1] Kinematic assessment of composite failure mechanisms in pit slopes- a novel slip surface identification algorithm for DFN models

[2] Site investigation and geological data collection

[3] Geotechnical Review of LOM Cariboo Pit and Springer Pit Slope Designs

3 文檔的相似度

Paraphrase Mining是在一個(gè)句子集合中尋找彼此之間最相似的方法，這個(gè)算法最初用來(lái)查找硬盤(pán)內(nèi)的相似文檔，利用這個(gè)方法可以得出上述兩個(gè)搜索結(jié)果中最相似的文檔，按照相似度排列，其前10個(gè)結(jié)果如下：

model = SentenceTransformer('paraphrase-MiniLM-L6-v2')

(1) Feasibility Pit Slope Design

Geotechnical Review of LOM Cariboo Pit and Springer Pit Slope Designs

[Score: 0.7373]

(2) Feasibility Pit Slope Design

Slope Stability Analysis and Design Based On Probability Techniques at Cassiar Mine

[Score: 0.6490]

(3) Geotechnical Review of LOM Cariboo Pit and Springer Pit Slope Designs

Monitoring and managing large deformation pit slope instabilities at a British Columbia copper mine

[Score: 0.5804]

[4] Feasibility Pit Slope Design

Characterisation of High Rock Slopes using an Integrated Numerical Modelling

[Score: 0.5682]

[5] Monitoring and managing large deformation pit slope instabilities at a British Columbia copper mine

Characterisation of High Rock Slopes using an Integrated Numerical Modelling

[Score: 0.5680]

[6] Site investigation and geological data collection

Monitoring and managing large deformation pit slope instabilities at a British Columbia copper mine

[Score: 0.5632]

[7] Feasibility Pit Slope Design

Kinematic assessment of composite failure mechanisms in pit slopes- a novel slip surface identification algorithm for DFN models

[Score: 0.5442]

[8] Characterisation of High Rock Slopes using an Integrated Numerical Modelling

Slope Stability Analysis and Design Based On Probability Techniques at Cassiar Mine

[Score: 0.5317]

[9] Monitoring and managing large deformation pit slope instabilities at a British Columbia copper mine

Feasibility Pit Slope Design

[Score: 0.5228]

[10] Kinematic assessment of composite failure mechanisms in pit slopes- a novel slip surface identification algorithm for DFN models 

Slope Stability Analysis and Design Based On Probability Techniques at Cassiar Mine

[Score: 0.5062]

4 參考文獻(xiàn)

[1] Duncan C. Wyllie (2018) Rock Slope Engineering Civil Applications. Fifth Edition. 621p.

[2] Golder Associates Ltd. (2016) Mount Polley Mine. Geotechnical Review of LOM Cariboo Pit and Springer Pit Slope Designs.

[3] Hoek, E. (2009) Fundamentals of slope design. Keynote address at Slope Stability 2009, Santiago, Chile. 

[4] Knight Piésold CONSULTING (2006) PACIFIC BOOKER MINERALS INC. MORRISON COPPER/GOLD PROJECT.  Feasibility Pit Slope Design. 78p.

[5] Lawrence, K. P., MD Nelson, M Yetisir, P Matlashewski (2020). Kinematic assessment of composite failure mechanisms in pit slopes - a novel slip surface identification algorithm for DFN models. GOLDEN 2020.