6) Angle of Internal Friction 内摩擦角 1. The results show that the angle of repose,the angle of internal friction and unconfined yield strength of semi-coke dec. 使用直剪仪对不同粒径的生物质和不同热解温度的半焦进行物性分析,结果表明:热解后,半焦的休止角、内摩擦角和开放屈服强度都明显降低...
Angle of reposeBiaxial shear testObtaining geometric information of rock aggregates is a requisite process for numerical simulation and experimental investigation of their macroscopic and microscopic properties. In this study, a systematic framework is first established to create a digitalized 2D particle ...
Thedeformation mechanismis as follows: after excavation of the cutting slope, if the slope of the formed slope is steeper than the angle of repose of the fragment rock, when the rock-soil bonding strength is insufficient in the slack relaxation range, the slope will gradually collapse from the...
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and angle of repose. It is also difficult to maintain proper side-to-side distance, face setback, and angle of repose over time. Prior art units often have lips or other interlocking means to connect units, or are affixed together with mortar in an attempt to prevent unit slippage. However...
Mechanical similarity, normalized parameters of the extraction and displacement and deposition of the rock armor units, h/L, HsI/Dn50, angle of repose to compute the dimensionless eroded area Ae/(Dn50)2, and the reshaped profile [40]. It is not possible to fulfill simultaneously the three ...
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(Fig.9A, C). Debris slopes at the distal limits of the deposit lack vegetation or lichen cover suggesting that the material is at the angle of repose and is undergoing active displacement and erosion. It is unlikely that the present-day limit represents the true maximum runout of the ...
A discrete element simulation apparatus consistent with the structure of the coal rock angle of repose model is established, and parameter calibration is performed through simulation experiments. The process of simulating the coal rock particle stacking experiment is illustrated in Fig.5. ...
that a rock glacier is a tongue-like or lobate body usually of angular boulders that resembles a small glacier, generally occurs in high mountainous (or dry polar) terrain, and usually has ridges, furrows, and sometimes lobes on its surface, and has a steep front at the angle of repose....