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- Keywords Revised Voussoir Beam theory;Treatment of big goaf at open pit mine; 伏萨尔梁法修正;露天采场采空区处理;高台阶分区处理大面积采空区工艺;
- REVISED VOUSSOIR BEAM THEORY AND ITS APPLICATION IN TREATMENT OF GOAFS AT OPEN PIT MINE 伏萨尔梁法修正及其在露天采场采空区处理中的应用
- Concept of both short voussoir beam and step beam in shallow seam and voussoir beam theory; 对浅埋煤层“短砌体梁”、“台阶岩梁”结构与砌体梁理论的商榷
- Voussoir beam theory 伏萨尔梁概念
- Vertical stress makes rock stratum reforming voussoir beam, horizontal in-situ stress is the main source to cause the voussoir beam crushed. 竖直方向地应力使顶板岩层形成铰接拱结构，水平地应力是拱铰压碎的主要力源。
- These curves consist of two parts, i.e. before and post-peak curves, which show the progressive failure of voussoir beam. 3条曲线都具有峰值前、后2个变形阶段，表明铰接拱破坏是一渐进过程。
- Then the curves of transverse load and the axial thrust follow, which means that the coefficient of movement arm is the most critical to the failure of voussoir beam. 初始纵向载荷较低时，3条曲线中力臂系数首先取得峰值，其次是横向载荷曲线，最后是纵向载荷曲线，说明力臂系数对铰接拱破坏最为敏感；
- The major factors that affect the stability of the structure are rotational angle of the voussoir beam, ratio of length and height, rock type and height of carrying rock strata. 本文以开采后岩层移动实测的形态曲线为基础，建立了断裂岩块间的铰合关系，进一步证明了“砌体梁”力学模型是层状矿体开采后岩层的基本结构形式。
- A mechanical model for the offset-axes pendulum drill assembly (OAPDA) was established according to the continuous beam theory and the D. 运用纵横弯曲连续梁理论和达朗伯原理,建立了偏轴钟摆钻具组合动力学分析模型。
- Based on Euler-Bernoulli beam theory and the floor shear vibration model, the motion equation of a single core-tube suspension structure is derived through Lagrange's formulation. 摘要基于欧拉-伯努利梁理论和层剪切模型，应用拉格既日方程推导了单段核筒悬挂减振控制结构的运动方程。
- This paper described the practice of using combined beam theory and suspensory theory,such as roof bolt,net,steel rope,and shotcrete being used together to strenthen roof control. 应用组合梁和悬吊理论,对松软岩层采用支护新技术,即锚、网、带、索、喷等联合支护方式,加强对松软岩层巷道顶板的控制,降低了材料支护费用,提高了软岩巷道支护的可靠性,同时也提高了松软岩巷的掘进速度。
- The flexural deformation equation is formulated for pipe string under vertical and horizontal bending condition based on vertical and horizontal bending beam theory. 运用纵横弯曲梁的理论，建立了管柱在纵横弯曲条件下的挠曲变形方程；
- The Gaussian beam theory has been developed to describe the power characteristics of intracavity continuous-wave singly resonant optical parametric oscillator (ICCWSRO). 建立了描述内腔连续波单共振光学参量振荡器(ICCWSRO)的功率特性的高斯光束理论。
- The objective is to verify the predictions of engineering beam theory in so far as that theory defines the centerline deflection and extreme values of the normal stress. 实验目的是证明现行的工程梁理论，这种理论定义了中心线变形和普通应力的极值。
- Here,the difference of the present theoretical model from that presented by Gibson and Ashby is that,the former can directly use the "beam theory" conveniently whereas the latter can not. 本理论模型与Gibson和Ashby的有关理论体系的不同之处是,前者可直接运用“梁理论”进行方便的分析和推演,而后者则不能。
- In the paper, the thin-walled beam theory has been directly combined with the analytic finite strip technique to derive the elastic governing differentil equations for curved multi-girder bridges by the principle of minimum potential energy. 本文结合弹性薄壁梁理论和解析有限条法,用最小势能原理,推出曲线梁桥的弹性控制微分方程。
- The whole piezolaminated curved beam is equivalent as a single layer structure, and the governing equation of piezolaminated curved beam with small curvature is derived based on one-dimensional beam theory. 将压电夹层圆形曲梁等效为单层结构，基于一维小曲率曲梁理论，建立其控制方程。
- Through the beam theory of relation between bending moment and distortion, the relationship between the bending moment of SMW wall and the field survey result of lateral deformation is established. SMW是一种采用就地搅拌水泥土体然后内插型钢形成的连续柔性挡土结构,适用于深基坑,有良好的应用前景。
- Based on the curved beam theory of the elasto-plastic mechanics, the basic mechanical characteristics of wide sheet bending is analyzed and the thickness variation analytical solution is deduced. 摘要基于弹塑性力学曲梁理论，分析宽板弯曲成形过程基本力学规律，推导了板厚变化精确解析解。
- She performed on the balance beam with much grace. 她在平衡木上表演得非常优美。
