Results 71 to 80 of about 5,380,195 (338)

IMPROVE THE EFFICIENCY OF SEISMIC WITH RUBBER MOUNTS ELEMENTS COMBINED WITH DRY FRICTION

Вестник Дагестанского государственного технического университета: Технические науки, 2016
The goal is to increase effectiveness of seismic isolation of buildings with flexible rubber-seismic isolation bearings (RSIB). In order to reduce the maximum displacement RSIB installed in the basement of frame buildings in seismic isolation system ...
A. D. Abakarov, Kh. M. Omarov
doaj   +1 more source

Seismic responses on vertical pumps.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1986
It is important to design vertical pumps considering seismic responses in addition to rotor vibrations due to unbalances. This paper presents analytical and experimental studies to evaluate seismic responses on vertical pumps. In the experiment, a small vertical pump was tested to obtain its vibration characteristics during earthquakes. In the analysis,
NIWA, Hiroshi, AIDA, Yasuhiko, SASAKI, Youichi, OHTE, Satoshi, MATSUNAGA, Takashi, MAKIGUCHI, Morio, NAKADAIRA, Shirou, KASAI, Hiroaki   +7 more
openaire   +2 more sources

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

Operational Modal Analysis for Seismic Protection of Structures [PDF]

, 2008
This thesis focuses on output-only modal identification tests and on the opportunities they provide in the field of seismic protection of structures. The problem of a good measurement process, in order to obtain high quality data and reliable results ...
Rainieri, Carlo
core   +1 more source

General model for relationship between void ratio and matric suction in unsaturated soils

Yantu gongcheng xuebao, 2019
Based on the provisions of “China's code for seismic design of hydraulic structures of hydropower project” (NB 35047-2015), the detailed effects of seismic parameters determined by use of different design response spectra including site-related response ...
YE Yun-xue 1, ZOU Wei-lie 1,2, HAN Zhong 1, LIU Xiao-wen 3
doaj   +1 more source

Thermal‐induced fracture evolution and acoustic signature of Beishan granite: Insights into tensile strength of barrier system for high‐level radioactive waste disposal

Deep Underground Science and Engineering, EarlyView.
The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng, Shijie Li, Xiaozhao Li, Zhen Huang, Shangtong Yang, Wentao Xu, Biao Wang, Yun Wu   +7 more
wiley   +1 more source

Study on the calculation method of seismic coefficient for slope stability using shear beam theory

Zhongguo dizhi zaihai yu fangzhi xuebao
Pseudo-static method is a common used approach to evaluate the seismic stability of slopes, where the choice of seismic coefficients directly affects the accuracy of the evaluation.
Mengchen WANG, Yahong DENG, Huandong MU, Nan YANG, Faqiao QIAN   +4 more
doaj   +1 more source

Safety evaluation of high rockfill dams subjected to earthquakes based on site-related response spectra

Yantu gongcheng xuebao, 2019
Based on the provisions of “China's code for seismic design of hydraulic structures of hydropower project” (NB 35047-2015), the detailed effects of seismic parameters determined by use of different design response spectra including site-related response ...
LI Hong-jun , ZHU Kai-bin , ZHAO Jian-ming , LIU Xiao-sheng , YANG Zheng-quan , YANG Yu-sheng
doaj   +1 more source

Seismic scattering signatures of small-scale heterogeneities: examples from the Mount Messenger Formation, New Zealand [PDF]

Heterogeneity that is on a length scale just below that of a seismic wavelength is at the limit of resolution but may still cause significant wave scattering.
Haines, A. J., Hulme, T., Henrys, S. A.
core   +1 more source

Fluid‐induced slip on a rate‐and‐state fault during co‐ and post‐injection: The interplay of fluid pressure diffusion and poroelastic stress

Deep Underground Science and Engineering, EarlyView.
Fault slip can occur ahead of the injection pressure front due to poroelastic stress. Our model captures the interaction of pressure, stress, and friction, providing new insights into injection‐induced seismicity and post‐injection fault slip. Shut‐in operations can either mitigate or accelerate seismic events depending on fault conditions and ...
Qifeng Xie, Lei Wang, Qi Li
wiley   +1 more source