Rock Mechanics的案例
巖石邊坡傾倒破壞之塊體傾倒(Block Toppling)數據集
Toppling Rock Slope Failures, Examples of Analysis and Stabilization. Rock Mechanics, Vol.13, pp.89–98.
[16] Amatruda G, Castelli M, Rouiller JD. Block toppling mechanism due to progressive failure of rock bridges. Felsbau 2004; 22(2):8–15.
這是我見過的最多頁數的博士論文---Rock Joint Systems
Step Path Rock Bridge Percentage for Analysis of Slope Stability. American Rock Mechanics Association. 51st US Rock Mechanics / Geomechanics Symposium 2017 (pdf)
[4] Dershowitz W, Doe T, Uchida M, Hermanson J. (2003) Correlations between fracture size, transmissivity, and aperture. In; Soil and Rock America. In: Proceedings of the 12th Panamerican Conference on Soil Mechanics and Geotechnical Engineering, 39th US Rock Mechanics Symposium. Cambridge; 22-26 June. 2003. p. 887–891.
[5] Dershowitz, W., Lee, G., Geier, J., Foxford, T., LaPointe, P. & Thomas, A. (2014) FracMan Version 7.4 --- Interactive Discrete Feature Data Analysis, Geometric Modeling, and Exploration Simulation: User Documentation. Golder Associates, Redmond, Washington.
展開 巖崩運動規律(Typical Rockfall Process)
主要的數據集中在下面的目錄:
:\Rock Mechanics\rockfall
:\Rock Mechanics\Step-Path-Failure(Discontinuity Persistence)
:\Rock Mechanics\rockbolting
:\Rock Mechanics\Bench
3 典型的巖崩過程
一個典型的巖崩過程包括整個過程包括自由落體(Free fall)、彈跳(Bouncing)、滾動(Rolling)和滑動(Sliding)。
基于審閱論文的編排, 本筆記對巖崩過程作進一步說明.
3.1 自由落體(Free Fall)
自由落體在很多情況下是巖崩的第一個動作，因為巖石經常從陡峭的斜坡上脫離，然后只受到重力的影響，根據Bozzolo等人(1986年)的研究，空氣阻力可以被忽略，因為它僅相當于落石總重量的2%。在高而陡的斜坡坡面上，崩落的巖石不受斜坡坡度和地形影響而自由下落，崩落的巖石在沒有外力的阻擋下，發生自由下落的運動，崩落巖石在任意下落高度H時的速度V可以表示為:
3.2 彈跳(Bouncing)
如果速度足夠高的話，彈跳最常見于自由落體之后，巖石撞到一個表面(巖石、沙子、樹木)并彈起，繼續沿著斜坡發生更多的彈跳，直到塊體的速度太低。在巖崩運動過程中彈跳是一種比較復雜和不容易確定運動軌跡的運動模式。這一部分是最不容易理解的，也是下落階段中最難預測的部分。在建立巖崩模型時，通常用恢復系數來判斷崩落巖石在運動過程中造成的能量損失，把崩落巖石的撞擊問題看成是剛體之間的相互撞擊，避免了直接討論崩落巖石在碰撞過程中的非線性變形和摩擦問題. (Azzoni, 1995; Bozzolo, 1989)。崩落巖石在運動過程中發生碰撞反彈時，呈拋物線運動。
展開 離散斷裂網絡DFN模型---Baecher Model
[2] Dershowitz, W.S. (1984) Rock joint systems. MIT Ph.D Thesis. 918p.
[3] Staub I. et al (2002) Strategy for a Rock Mechanics Site Descriptive Model---Development and testing of the theoretical approach. Golder Associates AB. 219p.
巖石錨桿支護(Rock Bolting/bolt Support)數據優化
1 引言
由于Gensim在上個星期升級到版本4.0.1, 因此需對代碼進行重新測試, 已經發現部分代碼受到影響, 這個筆記對geotech-words-flashtext-combination進行了測試, 使用了關鍵詞"Rock Bolting/bolt Support", 同時對GeotechSet數據集進行了整體優化.
巖石錨桿錨固節理化巖體---楔形效應的數值模擬(UDEC)
錨桿長度(Bolt length)的經驗確定方法
全長粘結錨桿數值模型(fully grouted cable bolts)
巖石錨桿(Rockbolts)文獻聚合
錨桿加固全飽和斷裂多孔介質的數值過程 [11/5/2020]
巖石錨桿錨固節理化巖體產生的楔形效應
巖石錨桿和錨索(Rockbolts and Cables)
巖石錨固的機理(Physical Mechanisms of Rock Bolting)
巷道圍巖塑性區的確定
2 數據集優化
優化后的數據保存在
{3DEC},
{Cable Bolting},
{Rock Slope},
{Rock bolting},
{fully grouted bolts},
{Engineering rock mass classification}
以及目錄X:\Geotech\Rock Mechanics\rockbolting中.
3 文獻聚合
[1] Ground Support Using Cable Bolts in Hard Rock Underground Mines.
展開 SRMTools---基于微觀力學的巖石邊坡3D模型
Cundall and Varun. (2013) “Validation of Lattice Approach for Rock Stability Problems,” in Proceedings, 47th US Rock Mechanics/Geomechanics Symposium (San Francisco, California, June 2013). ARMA 13-488. Alexandria, Virginia: ARMA.
離散斷裂網絡DFN模型總結
(pdf)
[3] Isabelle Staub, Anders Fredriksson, Nils Outters (2002) Strategy for a Rock Mechanics Site Descriptive Model --- Development and testing of the theoretical approach. Golder Associates AB. 219p. (pdf)
[4] Snow, D.T. (1965), “A Parallel Plate Model of Fractured Permeable Media”, Ph.D. Dissertation, University of California, Berkeley, 331p.
[5] Dershowitz, W.S., Einstein, H.H., (1988), “Characterizing rock joint geometry with joint system models”, Rock Mechanics and Rock Engineering, Vol. 21, pp. 21-51.
展開 復合滑動面(Composite Slip Surface)破壞模式
Damjanac and Varun. (2016) “Considerations on Slope Stability in a Jointed Rock Mass,” Proceedings, 50th U.S. Rock Mechanics/Geomechanics Symposium (Houston, Texas, June 2016). ARMA 16-0339. Alexandria, Virginia: ARMA.] Lawrence等人(2020)使用DFN模型建立了一種新型的滑動面算法. 也有一些研究者進行了以主要地質結構控制的復合大尺度巖體邊破壞機制的數值模擬, 特別是bi-planar復合破壞模式, 例如Fisher and Eberhardt(2007) [Fisher, B. R. and Eberhardt, E. (2007): Numerical modeling and shear strength estimates of bi-planar dip slope failures, Proceedings 11th Congress of the International Society for Rock Mechanics, 1, 629–632.], 參看bi-planar.txt。
展開 抗拉強度對巖石邊坡穩定性的影響(Effect of tensile strength on the stability)
International Journal of Rock Mechanics and Mining Sciences 47(6): 974-982.
巖石邊坡工程課程---邊坡破壞的原因(C3)
Introduction to Rock Mechanics, 2nd Edition.
[5] Hoek, E. (2007). Practical Rock Engineering. 341p.
[6] Hencher, S. (2015). Practical Rock Mechanics. 371p.
6 邊坡角的選擇
本節課的最后,討論了露天礦邊坡角的選擇. 在露天采礦工程中，邊坡角的選擇不僅影響著邊坡穩定性，而且直接影響著礦業公司的經濟效益。小的邊坡角度雖然維持了邊坡穩定，但由此引起的剝采量會產生巨大的費用，因此采礦工程師必須在安全與經濟之間取得平衡。
露天采礦臺階設計(Bench Design)方法
露天采礦臺階穩定性分析方法(Bench Scale Stability Analysis)
露天開采的邊坡角(Slope Angle)
7 邊坡破壞原因數據集
基于C3的課程內容, 產生出一個新的數據集---邊坡破壞原因(Causes of slope failure)用于機器學習.
展開 Doc2Vec Model---段落相似性查詢
(The Importance of Intact Rock Bridges in the Stability of High Rock.txt)
(7) Karimi L. et al. (2016) Simulation of rock bridge failure at the laboratory scale using a combined FDEM modeling and discrete crack network approach. 50th U.S. Rock Mechanics Symposium. Houston, Texas, June 2016. Paper 588.
(8) Scholtès, L., and Donzé, F. V. (2015). “A DEM analysis of step-path failure in jointed rock slopes.”Comptes Rendus Mécanique, Mechanics of granular and polycrystalline solids, 343(2), 155–165.
(9) Mendoza-Torres, F., et al. (2017). "Bernstein copula modeling for 2D discrete fracture network simulations." Journal of Petroleum Science and Engineering 156: 710-720.
(10) Abdullah, R. A., et al. (2010).
展開 
煤與瓦斯突出--煤爆控制(Coal Burst Controls)
In: Proceedings of the 45th US Rock Mechanics Symposium. American Rock Mechanics Association, Alexandria, VA; 2011. doc ID 11–276.
[6] Iannacchione, A.T. and DeMarco, M.J., (1992). Optimum Mine Design to Minimize Coal Bumps: A Review of Past and Present US Practices. Paper in New Technology in Mine Health and Safety, Proceedings of the Society of Mining Engineers Annual Meeting, Phoenix, AZ, Chapter 24, pp.
展開 Top2Vec (V1.0.26)主題模擬代碼的改進
from gensim.models.phrases import Phraser
本主題Top 5詞匯:
fracture rock
rock bridges
rock fall
unfractured rock
rock fall
本主題Top 5詞匯:
rock mechanics
fractured rock
unfractured rock
intact rock
jointed rock
本主題Top 5詞匯:
rock mass
fractured rock
rock mechanics
intact rock
jointed rock
2.4 Stopwords
盡管Top2Vec聲稱不需要進行stemming/lemmatization等分詞操作，但在實際應用過程中發現在進行詞匯相似性(Similar Keywords)運行時它沒有去掉stopwords, 以前使用手動方法處理，這個方法既笨拙又麻煩，因此引入了cleanDoc子程序過濾掉無意義的stopwords，改進后的代碼，例如"rock bridge"的Top 5相似詞匯得出的結果如下:
fractured rock
rock bridges
unfractured rock
rock fall
rock slopes
2.5 保存成文件
由于我們同時運行Doc2Vec和DBMC兩個模型(以后還要加入USE模型)，代碼產生出大量結果，事實上，這些結果已經產生出新的文檔，因此把這些結果直接保存成文件便于進行后處理分析。
展開 裂隙中的流固耦合仿真方法
., “Modelling fluid injection-induced fracture activation, damage growth, seismicity occurrence and connectivity change in naturally fractured rocks”,International Journal of Rock Mechanics and Mining Sciences, no. 138, vol. 104598, 2021.
Q. Lei et al., “The use of discrete fracture networks for modelling coupled geomechanical and hydrological behaviour of fractured rocks”,Computers and Geotechnics, no. 85, pp. 151–176, 2017.
Z. Sun et al., “Combined effects of thermal perturbation and in-situ stress on heat transfer in fractured geothermal reservoirs”,Rock Mechanics and Rock Engineering, no. 54, pp. 2165–2181, 2021.
C.
展開 Comsol-深部、干熱巖儲層水力壓裂熱流固-損傷耦合模型 ￥300
Fracture initiation and propagation of supercritical carbon dioxide fracturing in calcite-rich shale: A coupled thermal-hydraulic-mechanical-chemical simulation. International Journal of Rock Mechanics and Mining Sciences, 2023, 167, 105389
文件列表：
Rock Mechanics的相關專題、標簽、搜索
Rock MechanicsrockMechanics of MaterialsApplied MechanicsRock Cutting SimulationDAMAGE MECHANICS *soft rock plasticity requires the use of *soft rock hardeningthe edge e2 is not valid for the underlying element 32771 instance rock-1 in *surface assembly_rock-1_rock-wx-linrockrocking bioreactorsrocking columndigital rocks
