It has shown that the pressure arch,rather than the beam or plate,can be formed under the shallow-buried and very loose roof.
浅埋深极松软顶板难以形成“梁”或“板”结构,随着开采,将形成“压力拱”结构;当采场推进到一定距离时,拱结构失稳破坏,产生初次来压;当拱顶高度接近地表时,压力拱主结构内岩体失稳破坏,引起工作面更剧烈来压,同时,拱外次结构内岩体随之破坏,引起地表下沉;压力拱结构周期性失稳并前移,引起工作面周期来压。
The pressure arch was defined, and its boundary was determined based on stress analysis.
对压力拱拱体进行定义,通过应力分析确定拱体的边界,并用数值分析方法对拱进行分析。
Research on the Evolution Mechanism of Pressure Arch of Underground Cavern Excavated in Different Ways
不同开挖方式地下硐室压力拱的演变机理研究
The part of a structure that bears the weight or pressure of an arch.
拱座，支座建筑承担拱顶重量或压力的部分
Studies on Soil Arching Effect and Earth Pressure for Retaining Structure;
挡土结构土拱效应及土压力理论研究
Simulation Analysis of the Thermal Stress Field of RCC Arch Dam;
碾压混凝土拱坝温度应力场仿真分析
Research on the Control Area of Pressure Line of Eight-Shaped Rigid-Frame Arch Bridge
八字形刚架拱桥的压力线控制区研究
Outward or lateral stress in a structure, such as an arch.
推力如拱形构造的结构向外或侧向的压力
Analysis on Thermal Stresses and Cracking for Induced Joints of RCC Arch Dam;
碾压混凝土拱坝温度应力与诱导缝开裂分析
Research on Fatigue Failure of Reverse Vaulted and Notched Thin Metallic Shell under Uniform Pressure;
均匀压力下反拱带槽金属薄壳的疲劳特性研究
Roller ComPacted Concrete Gravity Arch Dam 3D FEM Non-linear Analysis;
碾压混凝土重力拱坝非线性有限元分析
Simulation Analysis of the Thermal Stress Field of RCC Arch Dam with Induced Crack;
设置诱导缝的碾压混凝土拱坝温度应力场仿真
Research on the Mechanical Behavior of Unsymmetrical Loading Twin-arched Tunnels Located on the Shallow Weak Rock Mass;
软弱围岩浅埋偏压连拱隧道力学效应研究
Distribution of Earth Pressure of Retaining Wall with Wall Movement of Rotation about Top Considering Soil Arching;
考虑土拱效应绕墙顶转动刚性挡墙土压力分布
Analysis of Stress Intensity Factor in Inducing Joint Transection of RCC Dams;
碾压混凝土拱坝诱导缝应力强度因子计算
Study on Construction Mechanics Effect of Shallow-buried Loess Double-arch Tunnel under Unsymmetrical Pressure
浅埋偏压黄土连拱隧道施工力学效应研究
Research on calculation metheods of earth pressure on muti-arch tunnel for highway
公路连拱隧道土压力荷载的计算方法研究
Force Analysis of the Roller Compacted Concrete Arch Dam in Bailianya Hydropower Station
白莲崖水电站碾压混凝土拱坝结构受力分析
Influence of the Cold Wave on the Temperature Stress During the Construction Period on Roller Compacted Concrete Arch Dam
寒潮对碾压混凝土拱坝施工期温度应力的影响
Calculation of earth pressure considering time and arching effect on pile-anchor supporting structure
考虑时效和土拱效应桩-锚基坑土压力计算方法