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Rotation errors in numerical manifold method and a correction based on large deformation theory
Ning ZHANG, Xu LI, Qinghui JIANG, Xingchao LIN
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1036-1053 doi: 10.1007/s11709-019-0535-5
关键词: numerical manifold method rotation large deformation Green strain open-close iteration
Resistance of large deformation of the Wushaoling Tunnel F7 soft fault
ZHAO Xufeng, CHEN Haiming, WANG Chunmiao
《结构与土木工程前沿(英文)》 2007年 第1卷 第1期 页码 123-127 doi: 10.1007/s11709-007-0013-3
Numerical modeling of nonlinear deformation of polymer composites based on hyperelastic constitutive
Qingsheng YANG, Fang XU
《机械工程前沿(英文)》 2009年 第4卷 第3期 页码 284-288 doi: 10.1007/s11465-009-0067-0
关键词: composites hyperelastic finite deformation homogenization micromechanics
大而复杂形变区域中的精确三维形变反演——基于偏移的相位解缠和改进的多孔径SAR干涉测量集成技术在2016年熊本地震中的应用 Article
Won-Kyung Baek, Hyung-Sup Jung
《工程(英文)》 2020年 第6卷 第8期 页码 927-935 doi: 10.1016/j.eng.2020.06.012
常规合成孔径雷达(synthetic aperture radar, SAR)干涉测量(InSAR)已成功用于精确测量雷达视线(line-of-sight, LOS)方向上的表面形变,而多孔径SAR干涉技术(multiple-aperture SAR interferometry, MAI)可以用于精确测量沿轨迹(along-track, AT)方向的表面形变。InSAR和MAI方法的集成可以精确测量干涉对中的二维(two-dimensional, 2D)形变;最近,升降轨联合解算使得人们可以观测到精确的三维(three-dimensional, 3D)形变。精确的3D形变测量已用于更好地了解地质事件,如地震和火山喷发。与2016年熊本地震有关的地表形变在断层线附近较大且复杂,因此精确的3D形变反演尚未展开。本研究的目的是:①通过对基于偏移的相位解缠和改进的多孔径SAR干涉图进行集成,在大而复杂的形变区域中进行精确3D形变反演的可行性测试;②观测与2016年熊本地震有关的甚至包含断层线附近的3D形变场。3D形变反演使用了两组升轨对和一组高级陆地观测卫星2(Advanced Land Observing Satellite-2, ALOS-2)相控阵型L波段合成孔径雷达2(Phased Array-type L-band Synthetic Aperture Radar-2, PALSAR-2)降轨干涉对。11个原位全球定位系统(global positioning system, GPS)测站的观测被用于验证3D形变的测量精度。3D形变测量在东、北和垂直方向上分别达到大约2.96 cm、3.75 cm和2.86 cm的精度。结果表明,即使在形变大而复杂的情况下,通过集成改进方法来测量精确的3D形变仍具有可行性。
关键词: 合成孔径雷达(SAR) 常规SAR干涉测量(InSAR) 多孔径SAR干涉技术(MAI) ALOS-2 PALSAR-2 三维形变反演 2016年熊本地震
Yongchang CAI, Hehua ZHU, Xiaoying ZHUANG
《结构与土木工程前沿(英文)》 2013年 第7卷 第4期 页码 369-378 doi: 10.1007/s11709-013-0222-x
关键词: fracture crack propagation deformable block continuous/discontinuous deformation analysis (CDDA)
Jianmin ZHOU, Shuo CHEN, Yang CHEN
《结构与土木工程前沿(英文)》 2013年 第7卷 第3期 页码 316-324 doi: 10.1007/s11709-013-0211-0
关键词: concrete beam high-strength steel bar crack width deformation
Shoujun CHEN, Qiang LI, Qi AN,
《机械工程前沿(英文)》 2010年 第5卷 第3期 页码 302-307 doi: 10.1007/s11465-010-0018-9
关键词: conic threaded connections interference fit radial stress deformation finite element analysis (FEA)
Simulation of blast induced crater in jointed rock mass by discontinuous deformation analysis method
Youjun NING, Xinmei AN, Jun YANG, Guowei MA,
《结构与土木工程前沿(英文)》 2010年 第4卷 第2期 页码 223-232 doi: 10.1007/s11709-010-0022-5
关键词: blast crater jointed rock mass explosion gas pressure discontinuous deformation analysis (DDA) method
Deformation control criterion of shield tunnel under lateral relaxation of soft soil
《结构与土木工程前沿(英文)》 2023年 第17卷 第5期 页码 780-795 doi: 10.1007/s11709-023-0944-3
关键词: shield tunnel lateral relaxation of soil deformation control criterion of segment structure model test
Deformation field and crack analyses of concrete using digital image correlation method
Yijie HUANG, Xujia HE, Qing WANG, Jianzhuang XIAO
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1183-1199 doi: 10.1007/s11709-019-0545-3
关键词: deformation filed distribution crack development digital image correlation method mechanical properties water-cement ratio characteristics of deformation and crack
Mohammad Javad REZVANIL, Mohammad Hossein KARGARNOVIN, Davood YOUNESIAN
《机械工程前沿(英文)》 2011年 第6卷 第4期 页码 409-418 doi: 10.1007/s11465-011-0245-8
The response of an infinite Timoshenko beam subjected to a harmonic moving load based on the third-order shear deformation theory (TSDT) is studied. The beam is made of laminated composite, and located on a Pasternak viscoelastic foundation. By using the principle of total minimum potential energy, the governing partial differential equations of motion are obtained. The solution is directed to compute the deflection and bending moment distribution along the length of the beam. Also, the effects of two types of composite materials, stiffness and shear layer viscosity coefficients of foundation, velocity and frequency of the moving load over the beam response are studied. In order to demonstrate the accuracy of the present method, the results TSDT are compared with the previously obtained results based on first-order shear deformation theory, with which good agreements are observed.
关键词: timoshenko composite beam pasternak viscoelastic foundation third-order shear deformation theory (TSDT) harmonic moving load
李健,谭忠盛,喻渝,倪鲁肃
《中国工程科学》 2011年 第13卷 第9期 页码 92-96
以郑西客运专线阌乡隧道为依托工程,进行浅埋大跨黄土隧道长大管棚受力机制的研究。对隧道进入下穿高速公路前的管棚纵向变形进行现场监测,根据测试结果分析管棚在隧道开挖过程中的受力特性,得到浅埋黄土隧道长大管棚受力变形规律:掌子面前方约15 m处管棚开始受力,掌子面过后约15 m管棚的受力趋于稳定,管棚的纵向变形总体上呈凹槽形分布,掌子面处管棚受力最大。通过有限差分程序FLAC3D计算不同管棚参数条件下的施工方案,为隧道下穿段管棚工法及施工方案的优化设计提供理论依据,并在下穿段沉降监测中得到验证。
Seismic effects on reinforcement load and lateral deformation of geosynthetic-reinforced soil walls
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 1001-1015 doi: 10.1007/s11709-021-0734-8
关键词: geosynthetics reinforced soil retaining walls seismic performance
Experimental investigation of the influence on static and cyclic deformation of structural soft clay
CHEN Yunmin, CHEN Yingping, HUANG Bo
《结构与土木工程前沿(英文)》 2007年 第1卷 第4期 页码 422-429 doi: 10.1007/s11709-007-0057-4
标题 作者 时间 类型 操作
Rotation errors in numerical manifold method and a correction based on large deformation theory
Ning ZHANG, Xu LI, Qinghui JIANG, Xingchao LIN
期刊论文
Resistance of large deformation of the Wushaoling Tunnel F7 soft fault
ZHAO Xufeng, CHEN Haiming, WANG Chunmiao
期刊论文
Numerical modeling of nonlinear deformation of polymer composites based on hyperelastic constitutive
Qingsheng YANG, Fang XU
期刊论文
A continuous/discontinuous deformation analysis (CDDA) method based on deformable blocks for fracture
Yongchang CAI, Hehua ZHU, Xiaoying ZHUANG
期刊论文
Calculation methods of the crack width and deformation for concrete beams with high-strength steel bars
Jianmin ZHOU, Shuo CHEN, Yang CHEN
期刊论文
Calculation method of radial stress and deformation on conic threaded connections with interference fit
Shoujun CHEN, Qiang LI, Qi AN,
期刊论文
Simulation of blast induced crater in jointed rock mass by discontinuous deformation analysis method
Youjun NING, Xinmei AN, Jun YANG, Guowei MA,
期刊论文
Deformation field and crack analyses of concrete using digital image correlation method
Yijie HUANG, Xujia HE, Qing WANG, Jianzhuang XIAO
期刊论文
Dynamic analysis of composite beam subjected to harmonic moving load based on the third-order shear deformation
Mohammad Javad REZVANIL, Mohammad Hossein KARGARNOVIN, Davood YOUNESIAN
期刊论文
Seismic effects on reinforcement load and lateral deformation of geosynthetic-reinforced soil walls
期刊论文