圆形衬砌,circular lining
1)circular lining圆形衬砌
1.the amended Biot model considering compression of soil grain and pore fluid and viscid coupling between pore fluid and soil skeleton,and the wave function expansion method are adopted to numerically analyze the scattering problem of a infinitecircular lining deeply buried in nearly saturated soil and the dynamic st.忽略土颗粒的压缩性,考虑孔隙流体的压缩性以及孔隙流体与土骨架之间的粘性耦合作用,采用修正的B iot模型,运用波函数展开法研究了平面P1波入射时,准饱和土体内深埋圆形衬砌的散射问题,通过数值计算模拟并分析了衬砌的动应力集中问题,结果表明:不论入射频率为低频(100Hz)还是高频(500Hz),对于相同的衬砌,当土体为准饱和时,动应力集中因子沿周向分布曲线的形状和数值基本保持不变;但土体为完全饱和时,虽然饱和度发生了微小的变化(比99%只提高了1%),但动应力集中因子的值却大幅度地降低,其沿周向分布曲线的形状也发生了显著的变化,在工程设计中应重视饱和度对圆形衬砌动应力集中因子的影响。
2.The amended Biot\"s model of wave motion and the expansion method of wave functions are adopted,and the scattering problem ofcircular lining deeply buried in saturated soil by incident shear waves is studied.采用修正的Biot波动方程,运用波函数展开法研究了剪切波入射时,饱和土体内深埋圆形衬砌的散射问题,通过数值计算分析了衬砌内侧的动应力集中因子Sd与界面处饱和土体的孔压集中因子p*f的变化规律。
英文短句/例句
1.On the Scattering of SH-Wave by Semi-Cylindrical Hill with Lining Structure;含圆形衬砌结构的半圆形凸起对SH波的散射
2.On Scattering & Diffraction of Underground, Circular, Lined Tunnels Subjected to Incident Cylindrical SH Waves;地下圆形衬砌隧洞对柱面SH波的散射解析解
3.On the Scattering of SH-Wave by Circular Lining Structure Near the Interface;界面附近的圆形衬砌结构对SH波的散射
4.SCATTERING OF INTERACTING CIRCULAR LININGSTRUCTURE AND CRACK IN HALF SPACSE半空间中圆形衬砌与裂纹对SH波的散射
5.Scattering of Plane P Waves by a Circular Lining Buried in Semi-infinite Space Composed of Elastic Media半空间弹性介质内圆形衬砌对平面P波的散射
6.Dynamic Stress Concentration of Circular Lining in Saturated Soil by Shear Waves剪切波对饱和土体中圆形衬砌的动力集中
7.Scattering of Plane P & SV Waves by an Underground Circular Lined Tunnel in Saturated Site;饱和场地中圆形衬砌隧洞对平面P和SV波的散射
8.Scattering and Diffraction of Cylindrical Lined Cavities in Half-space Subjected to P & SV Waves;半空间中圆形衬砌洞室群对平面P波和SV波的散射
9.An Analytical Solution for Scattering and Diffraction of Plane-SV-waves by a Cylindrical Lined Cavity in Half-space of Saturated Soil饱和土半空间中地下圆形衬砌洞室对平面SV波的散射
10.Study on the Two-dimensional Scattering of Plane-P-waves and Plane-SV-waves by Underground Cylindrical Lined Cavity in a Fluid-saturated Porous Media Half Space.;饱和土半空间中圆形衬砌洞室对入射平面P波和平面SV波散射的研究
11.Scattering of Cylindrical SH Waves by Underground Circular Inclusion and Lined Tunnels;地下圆形夹塞区及衬砌隧洞对柱面SH波的散射
12.Dynamic Numerical Simulation of Double Circle Cavities and Circle Lining Impacted by SH Wave;双圆孔及圆环形衬砌在瞬态SH波作用下的数值仿真
13.On the Scattering of SH-Wave by Interface Crack and Circular Cavity near the Interface;界面含裂纹圆环形衬砌对SH波的散射及动应力集中
14.Dynamic Response Analysis of Underground Cylindrical Composite-lining Cavern Subjected to Seismic Waves地下圆形组合衬砌洞室在地震波下的动力反应分析
15.A SOLUTION ON THE INTERNAL SOURCE PROBLEM OF A CYLINDRICAL CAVITY COSIDERING THE DYNAMIC INTERACTION BETWEEN LINING AND SATURATED SOIL饱和土与衬砌动力相互作用的圆柱形孔洞内源问题解答
16.Temperature Control Research on the Lining Concrete of Circular Pressure Section of Xiluodu Spillway Tunnel溪洛渡泄洪洞有压段圆形断面衬砌混凝土温控研究
17.Research on Internal Forces Computational Methods for DOT Shield-Driven Tunnel Lining;双圆盾构隧道衬砌结构内力计算方法研究
18.Anti-floating Design of Needle Beam Type Formwork Lining Trolley with Full Circle Section全圆断面针梁式模板衬砌台车抗浮设计
相关短句/例句
Group of circular linings圆形衬砌群
3)circular arc lining圆弧形衬砌
4)circle lining圆环形衬砌
1.The scattering problems and the dynamic stress concentration problems of SH-wave by double circle cavities, andcircle lining in near field are investigated in this thesis by the method of FEM.本文采用有限元法研究近场双圆形孔洞、圆环形衬砌对瞬态SH波的散射和动应力集中问题。
5)Scattering of SH(shearing horizental) wave偏心圆形衬砌
6)circular lining tunnel圆形衬砌隧道
延伸阅读
复合式衬砌分内外两层先后施作的隧道衬砌。在坑道开挖后,先及时施作与围岩密贴的外层柔性支护(一般为喷锚支护)，也称初期支护，容许围岩产生一定的变形，而又不致于造成松动压力的过度变形。待围岩变形基本稳定以后再施作内层衬砌（一般是模筑的），也称二次支护。两层衬砌之间，根据需要设置防水层，也可灌筑防水混凝土内层衬砌而不做防水层。复合方式 复合式衬砌的外、内层复合方式有以下几种：喷锚支护和混凝土衬砌；喷锚支护和喷射混凝土衬砌；可缩式钢拱喷射混凝土支护和模筑或喷射混凝土衬砌，以及装配式衬砌(管片)和模筑混凝土衬砌等。最通用的是外层采用喷锚支护或轻型管片，内层采用整体式模筑混凝土衬砌（见图）。防水层 两层衬砌间的防水层，可采用喷涂乳化沥青等防水胶剂，或采用厚度不等的软聚氯乙烯薄膜、聚异丁烯片、聚乙烯片等防水卷材，并固定在支护上。为保证防水卷材施工接缝的质量，一般需要用热气焊接或电阻焊接，亦可用适当溶剂作溶解拼接。施工 复合式衬砌施工中的一个重要环节是喷涂或粘贴防水层，要求做到与初期支护相密贴，故在防水层施工前需要对初期支护的表面进行适当处理，使其平整圆顺，无较大渗水。初次支护的施工方法和要求，与一般喷锚支护或装配式衬砌的相同。内层模筑衬砌多采用模板台车和混凝土泵进行连续灌筑。设计 复合式衬砌中，外层支护与围岩形成统一的受力整体，共同承担因开挖坑道所产生的围岩释放应力。由于影响共同作用的因素很多，如围岩状态、支护施作时间、衬砌刚度和施工方法等，有些因素事先又无法预测，故分析计算只能作为设计时参考，必须根据施工过程的量测结果予以修正。内层衬砌主要为了防水、防风化、内部装饰和增加安全度,其厚度按施工要求而定,一般不超过40厘米。有时不易做到待初期支护变形完全稳定后再施作内层衬砌。例如当松软围岩流变引起的延滞变形历时很长时，这时内层衬砌所承受的荷载主要是由于围岩延滞变形产生的形变压力；以及因部分锚杆腐蚀失效，或涌水降低了围岩物理力学参数所引起的附加岩土压力。复合式衬砌的优缺点 采用先后两次支护，对衬砌受力非常有利。围岩在柔度较大的外层支护条件下，可产生较大的形变，释放了大部分的变形能；因而能使后设的内层衬砌减小受力。内层衬砌施作以后，又会对原先处于二维受力状态的外层支护产生径向抗力，从而改善外层支护的受力条件。而且表面光洁平整，有利于隧道通风和防水，并保护外层支护，使喷层内钢筋网和锚杆端部免于锈蚀。但是,这种衬砌的缺点是造价较高,施工也比较复杂。
