通过对两种平衡状态的研究探讨倾倒式危岩体的稳定性计算  

Discussion on Calculation of Unstable Rock Mass Toppling Stability Through the Study of Two Kinds of Equilibrium State

作　　者：赵云龙[1] 申佳洪 汪蒙[1] 

机构地区：[1]贵州省地矿局第二工程勘察院,贵州遵义563000

出　　处：《企业技术开发》2016年第8期57-62,共6页Technological Development of Enterprise

摘　　要：文章以理论力学和材料力学基本理论为出发点,通过静力平衡状态的研究,解决了危岩体基座反力的求解问题,建立极限平衡状态下与岩体力学强度及潜在未贯穿裂隙面应力特征相关的本构方程,求解得出极限平衡状态下的裂隙水压力及相应的裂隙充水高度,并根据倾覆力矩的数学表达式计算危岩体所受所有外力对倾覆点产生的最大抗倾覆力矩,进而归纳出倾倒式危岩体稳定性计算的新公式。Based on the basic theory of mechanics of materials as starting point,through the study on the static equilibrium to solve the counterforce of dangerous rock mass base to solve the problem,the establishment of the state of limit equilibrium and the mechanical strength of rock mass and potential non penetrating crack surface should force characteristics were related to the constitutive equations and solved to obtain limit equilibrium state of fissure water pressure and the corresponding fracture filling height of water,and according to the overturning moment of the mathematical expressions for calculating rock body from all external forces on tipping point produced the largest anti overturning moment,then summarized the dumping of the new formula for calculation of unstable rock mass stability.

关 键 词：倾倒式危岩体 基座反力 静力平衡 极限平衡 本构方程 裂隙水压力 最大抗倾覆力矩 

分 类 号：TU457[建筑科学—岩土工程]