lithostatic stress

ystematic research on the porosity data obtained under different confining pressures frommore than 30 coal samples is conducted considering the production characteristic of coalbed methane.

在对３０多个煤岩样品在不同围限压力下测得的孔隙度进行研究的基础上，结合煤层甲烷开采的生产特点，讨论了煤岩孔隙度在围限压力下的变化特征。

Some distribution rules of surrounding rock stress of large-span tunnel are summarized to provide the reasonable references to design and.

运用有限元法的基本原理,依托处于设计阶段的惠州—深圳牛湖山双洞六车道高速公路隧道这一实际课题,对断层所在区段的围岩应力状态进行数值模拟和分析,并探讨断层位置对围岩施工力学响应的影响,总结断层地段大跨度隧道围岩应力的一些分布规律,为该隧道及类似工程项目今后的设计施工提供合理的参考依据。

Some distribution rules of large-span tunnel surrounding rock stress are included,in order to provide the reasonable foundation for similar engineering construction in future.

运用有限元法的基本原理,对处于设计阶段的广东惠州牛湖山双线六车道高速公路隧道的围岩应力状态进行了数值模拟和分析。

2 mining area are analyzed;in term of geologic structure,surrounding rock stress distribution embark,and the influence of high strength mining,the surface crack subsidence formation mechanism and the influence factor has been discussed.

通过裂缝区调查、测绘与槽探,揭示了地表裂缝区范围与特征;从沉降裂缝区的形成、岩体移动与变形规律及沉降裂缝发展趋势分析了金川二矿区地表裂缝沉降变形规律;由矿区地质构造、围岩应力分布出发,结合高强度采矿活动的影响,探讨了地表裂缝沉降的形成机制及影响因素。

Analysis of Surrounding Rock Pressure of Niuhushan Tunnel Under Unloading Effect

卸荷效应下牛湖山隧道围岩应力分析

Numerical Analysis on Deformation and Stress of the Surrounding Rock of Dichotomy Tunnel

分岔隧道的围岩应力及变形数值分析

The Surrounding Rock Stress-Strain of Laoling Tunnel Along Chaoyang Town to Changbai Highway;

朝阳镇至长白公路老岭隧道围岩应力—应变分析

The Determination of Release Rate of the Surrounding Rock and Study on the Mechanical Property of the Tunnel Structure

岩质隧道围岩应力释放率的确定与结构力学性状研究

The Stress Field s Analysis of Reinforced Concrete High Pressure Tunnels;

钢筋混凝土高压隧洞围岩应力场的分析

Numerical Simulation and Analysis of the Stress and Displacement of Circular Tunnel in Rock;

圆形隧道围岩应力与位移的数值模拟与分析

Study on Terrestrial Stress Tests for Kaiser Effect on Surrounding Rocks at Gonghe Tunnel

共和隧道围岩Kaiser效应地应力测试研究

Mechansim of Deformation of Soft Rock Roadway with High Horizontal Geo-stress and Its Supporting Measures;

高水平应力软岩巷道围岩变形机理及支护对策

Mechanics Response Anslysis of Surrounding Rock on Weak Rock Station Tunnel with Large Span;

软岩三线车站隧道开挖围岩力学响应分析

Study on the Model of Stress under Refracture Around the Well of Sandstone Reservoir

砂岩储层重复压裂前井眼围岩地应力模型研究

Dynamic response of surrounding rock with high stress in deep chamber

深埋硐室高围压条件下的围岩动力学响应

Analysis on quadratic stress field characters of surrounding rock in Erlang mountain highway tunnel

二郎山隧道围岩二次应力场特征分析

The Study of Stability Evaluation of Surrounding Rockmass of Underground Excavation in the Region with Low Rock Stress;

低地应力区地下洞室围岩稳定性研究

Analysis on Failure Process of Surrounding Rock of Roadway or Tunnel in High Stress Area

高应力巷(隧)道围岩破坏过程分析

It is advantage to the studying of the crustal stress field′ s distribution in the rocksalt cavity′ s surrounding rock and the stability of rocksalt cavity.

为研究岩盐溶腔围岩地应力场规律和岩盐溶腔稳定性打下了基础。

EFFECT OF STRESS PATH ON SURROUNDING ROCK PRESSURE OF SUPER LARGE-SECTION TUNNEL

应力路径对特大断面隧道围岩压力的影响

FLAC Analysis of Mechanical Response of Surrounding Rock Mass in Deep Tunnel

动力扰动下深部巷道围岩力学响应FLAC分析

The Stress Control Method and Its Application in Surroundding Stata Control in Stope;

应力控制方法及其在采场围岩控制中的应用