1)surrounding rock displacement围岩位移
1.Forecasting evolution of tunnel surrounding rock displacement by ε-SVR;基于ε-SVR算法的隧道围岩位移演化规律预测
2.A method of predicting surrounding rock displacement is set up by using the RBF nerve network s function of powerful nonlinear mapping and fast convergence rate, in which the monitoring data of surrounding rock displacement are chosen.选择现场监测的围岩位移数据为样本,利用径向基函数RBF神经网络具有强大的非线性影射能力和收敛速度快的特点,建立围岩位移预测神经网络模型进行位移预测。
3.According to construction,design and on-site conditions,authors firstly set up finite element model of a tunnel,and then describe the distribution of surrounding rock displacement.依据某隧道施工设计及现场施工建立线弹性的隧道有限元模型,描述围岩位移场的空间分布。
英文短句/例句
1.Research on Intelligent Back Analysis of Tunnel Surrounding Rock Displacement and Engineering Practice;隧道围岩位移智能反分析研究与工程实践
2.The Application Study of Nonlinear Forecast on Surrounding Rock Displacements Based on LS-SVM;基于LS-SVM的围岩位移非线性预测应用研究
3.A Remote Real Time Auto-monitoring System of Tunnel s Wall Rock Displacement with Laser;激光隧道围岩位移远程实时监测系统的研制
4.Influence of Tunnel Cross-section Shape on Stress and Displacement of Surrounding Rock断面形状对隧洞围岩位移和应力的影响分析
5.Surround Rock Mass DBA Intelligent Grey Predition and Application of Fuzzy Classified in Tunnel围岩位移反分析及智能化灰色预测与模糊分类的应用
6.Research on Intelligent Back-Analysis Based on BP Neural Networks and Immuney Programming of Tunnel Surrounding Rock Displacement;基于BP神经网络和免疫规划的隧道围岩位移智能反分析研究
7.Studies of ANN Back Analysis in Rock Displacement Prediction of LiuShan Tunnel and Its Application;神经网络反分析在柳山隧道围岩位移预测中的应用研究
8.An Application Research on Intelligent Back Analysis of Tunnel Surrounding Rock Displacement in Xue Feng Mountion Highway Tunnel;围岩位移智能反分析在雪峰山公路隧道中的应用研究
9.Displacement Characteristics of the Surrounding Rock and the Influencing Factors Analysis when Tunnel Excavating towards the Geological Interface隧道开挖面接近地质界面时围岩位移特征及其影响因素分析
10.The results show that the internal friction angle of rock has importance affect on the displacement of surrounding rock for deep roadway when in-situ stress and support resistance all are certain.分析结果表明,在地应力和支护阻力一定时,岩石的内摩擦角对深埋巷道围岩位移的影响最为明显。
11.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
12.Initial Crustal Stress Regression Analysis Based on Displacement Function method and Stability Analysis of Rock Mass;位移函数法回归初始地应力与围岩稳定分析
13.Application of Displacement Inverse Analysis to Rockmass Parameters of Xiganchi Tunnel and Support Optimization西甘池隧洞围岩力学参数位移反演及支护优化
14.Back Analysis for Surrounding Rock's Mechanical Parameters of Highway Tunnel by Using Measured Values from Multipoint Displacement Meter利用多点位移计实测值反演隧道围岩力学参数
15.The viscoelasticity displacement analysis of a hydroelectric station air-raid shelter adjacent rock某水电站放空洞围岩粘弹性位移反分析
16.DISPLACEMENT BACK ANALYSIS OF PARAMETER FIELD IN UNDERGROUND ENGINEERING BASED ON EXCAVATION DAMAGED ZONE OF SURROUNDING ROCK基于围岩松动圈的地下工程参数场位移反分析
17.Method of obtaining loss convergence displacement and its application to tunnel engineering隧洞围岩收敛损失位移的求取方法及应用
18.The rheological mathematical model of radial displacement and its velocity are presented to study the stability of adjoining rocks.并介绍用径向位移与位移速度的流变数学模式研究围岩的稳定性。
相关短句/例句
Displacement of surrounding rock围岩位移
1.After the excavation of powerhouse system, we monitored that the displacement of surrounding rock increases quickly and its space displacement is obvious.厂房系统开挖后,监测到围岩位移迅速增大,空间位移表现明显,围岩位移和应力一般在支护后变化逐渐趋缓;围岩位移和锚杆应力曲线呈台阶式分布,从围岩位移变化、锚杆和锚索应力变化来看,厂房与主变室的交叉洞口处,变形较大,厂房上游拱座处受力较为复杂,变形也较大。
2.According to the large quantity of in situ measured data,the characteristics and variation laws of displacement and load of bolts in the surrounding rock are studied,and the factors which influence the displacement of surrounding rock and the load along bolts are analyzed as well.通过大量的原型监测数据 ,研究了大型地下洞室的位移特性、锚杆应力特性以及它们的变化规律 ,并分析了对围岩位移和锚杆应力的影响因
3)rock displacement围岩位移
1.The investigation of intelligent back analysis of tunnel rock displacement;隧道围岩位移智能化反演研究
4)displacement field of surrounding rock围岩位移场
5)displacement prediction of surrounding rock围岩位移预测
6)tunnel rock displacement隧洞围岩位移
延伸阅读
地下洞室围岩(土)稳定性(dixia dongshi weiyan 地下洞室周围岩、土体的稳定程度。地下洞室的开挖,会引起初始应力的释放,洞室周围岩、土体中产生应力集中和新的变形。应力低、变形小的洞室可以在不支护条件下长期使用。应力高、变形较大的,往往引起岩、土体破坏,因而必须利用支护或加固岩、土体的措施,才能保持使用洞室所必需的断面尺寸。在应力大、变形严重的情况下,不仅会造成洞室周围岩、土体的破坏,而且还可能导致地表沉陷,危及地面建筑物的安全。 根据洞室所在地层的性质,地下洞室分为土洞和岩洞两大类。土体和岩体的工程性质差别较大,两类洞室的变形破坏型式、影响因素,以及稳定性评价方法等,均有所不同。 与大部分岩洞相比较,土洞的稳定性要低得多。一般来说,土洞如果不给予支护,通常都不能保持长期稳定。影响土洞稳定性的因素,主要是土层类型、地下水的状态、洞室断面尺寸、形态以及埋深等。在坚硬和较坚硬的土层中,洞室稳定性较好;在淤泥层、沙层、粘性土层及遇水软化的粘土岩、膨胀土层中,洞室稳定性很差,常常给施工带来巨大困难。土洞的稳定性和土压力的评价,通常采用土力学的分析方法进行。 岩洞的稳定性主要取决于岩体中的初始应力状态、岩体质量(主要是岩体结构和岩块质量)、地下水状况、洞室的断面尺寸、形状及其埋深等。初始应力不高,水平初始应力与铅直初始应力的数值越接近,岩体质量越好。地下水越不发育,洞室断面尺寸越小,洞室围岩的稳定性就越好。反之,当初始应力很高时,岩洞稳定性很差,常使围岩发生板裂、剥落和岩爆,甚至导致洞室完全封闭。岩体结构不良时,围岩可能发生块体崩塌、滑移和弯折破坏;洞室通过含水的泥质岩体、云母质岩体、含有断层泥的破碎带,以及膨胀岩体时,围岩可能发生挤入和膨胀破坏;洞室通过位于地下水位以下的断层破碎带时,饱水的岩屑将可能象浆液一样流入洞室,充填洞室;当地下水非常丰富、水压力非常大时,甚至在坚硬岩体中,也可能使洞室顶板、底板、洞壁或掌子面围岩发生水压突破破坏。 岩洞稳定性的评价,一般采用以下3类方法:①围岩分类评价法。这是普遍采用的一种方法,它是以岩体质量评价为基础,结合已建工程的实践经验进行的。②连续介质力学分析法。利用弹性理论、弹塑性理论以及各种数值分析方法,评价围岩的稳定性。③块体极限平衡分析法。应用极限平衡理论,分析围岩脆性开裂、块体滑移以及层状岩体弯折等问题。