1) elastic-plastic limited equilibrium theory
弹塑性极限平衡理论
2) plastic equilibrium
塑性极限平衡
3) limit equilibrium theory
极限平衡理论
1.
Chose the Anjialing open-pit mine in Pingshuo as research object,limit equilibrium theory and Geo-Slope software for slope stability analysis were utilized to consider the influence of external environment on slope stability,such as groundwater and underground mining.
根据平朔安家岭露天矿工程实践,运用极限平衡理论的方法,借助Geo-Slope软件,进行了外部环境条件如地下水以及地下开采扰动条件下边坡稳定性影响的研究。
2.
Based on in-situ observation about stress in inclined coal pillar for fully-mechanized top-coal caving face of thinner coal seam and the elastoplastic limit equilibrium theoryt,aking the thickness and angle of coal seam into account,the results and relations are analyzed systematically and completely;and the formula and the distribution laws of stress peak value are obtained.
在较薄厚煤层综放面倾向煤柱支承压力现场实测的基础上,应用弹塑性极限平衡理论,考虑煤层厚度及倾角的影响,分析得出综放面倾向煤柱支承压力峰值位置的计算式及分布规律。
3.
The analysis method of limit equilibrium theory to the reliability of soil nail support is one by which stability coefficient is computed through searching potential sliding failure surface with ‘deterministic’ strength parameters of soil mass and soil nail.
土钉支护稳定性所采用的极限平衡理论分析方法是根据"确定性"的土体、土钉强度参数搜索其潜在的滑动破坏面、计算稳定系数及其安全状态,但由于计算参数的随机性及其强度参数不能满足约束条件的随机性,使得稳定计算的可靠程度大为降低。
4) Limiting equilibrium theory
极限平衡理论
1.
Based on limiting equilibrium theory and Ordinary method,applying Geo-slope software,the influence of water pressure at different critical level on the stability of rock fill embankment is analyzed.
基于极限平衡理论和Ordinary方法,采用Geo-slope软件分析了不同临界水位时水压力对高填石路堤稳定性的影响。
2.
Taking into consideration the coordinated work of composite soil nail supporting structure with soil body and according to failure mode of soil slope,the seismic stability analysis model for composite soil nail supported slope was established by using limiting equilibrium theory,in which the influence of prestress in anchor on stability analysis was considered.
在考虑复合土钉支护结构与土体协同工作的情况下,根据土质边坡的破坏模式,考虑预应力锚杆中施加的预应力对稳定性计算的影响,根据极限平衡理论建立复合土钉支护边坡地震稳定性分析模型。
3.
The calculation method and reference of Chinese and Japanese concrete filled tubes axial compression short column calculation were compared and analyzed,the characteristics of Chinese limiting equilibrium theory and Japanese superposition theory were generalized.
对中日两国钢管混凝土轴心受压短柱的计算方法及得出依据进行了比较和分析,总结了中国的极限平衡理论和日本的叠加理论各自的特点,结合以往的试验数据分析了各自的准确性,以使钢管混凝土结构设计更加合理。
5) theory of limit equilibrium
极限平衡理论
1.
The optimal control method to analyze the stability of soil slopes is presented by combining with finite element method, theory of limit equilibrium, numerical analysis method of ordinary differential equation and theory of optimal control.
结合有限元法、极限平衡理论、常微分方程的数值解法和最优控制理论等,提出用于土坡稳定的最优控制分析法。
6) finite elastic-plastic theory
有限弹塑性理论
补充资料:平巷弹塑性地压理论
平巷弹塑性地压理论
ground pressure around tunnel in elastic-plastic rock
P IngXlong tonsUXIng dlyol}IUn平巷弹塑性地压理论(gr〔)。nd Iore、sur。:,r(。-undt、Innel in elastie一plastie rnek)在弹性岩休中汗挖巷道后,由于应力集中,一定范围内的围岩将因应力超出弹性极限而进人塑性状态(见图)塑性区的大小决定于原岩应力.围岩性质,巷道儿何形状及支护条件若塑性区继续发展,岩石强度参数逐渐降低,巷道失稳破坏。所以,在巷道破坏前应采取人工支护,限制塑性区的扩展。弹塑性地压理论即考虑了上述围岩性质转化和支护作用,又将弹塑性理论用于地压研究,便于建立地压问题的解析解,因此应用较广。在将弹塑性理论应用于地压的研究中,由于考虑的因素和侧重方血不同·许多学者提出了不同的假说及弹塑性地压计算方法。中国郑颖人对侧压系数入一1的圆形巷道给出了修正的芬纳尔(P·Finner)方程: P,一(P〔、一(、eot甲)(l一sln犷, 只}务1嘿下一价。 ’、(R。’一~‘了式甲尸为围岩压力或支护抗力;尸「为原岩应力:f为岩体粘结力;爷为岩体内摩擦角;几为巷道周边塑性区半径:。、为巷道半径根据弹塑性地压理论,巷道围岩塑性区的形成和塑性流动是产生地压的原因,用支护阻止塑性区的扩展是控制地压的有效方法扭犷 非弹性变形区的应力分布 。一围岩径向应力.即一围岩切向应力
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参考词条