摘要: The dynamic shear modulus ratio and damping ratio of sand gravel are important parameters for seismic response analysis of valley geomorphic sites,which have an important imp...

摘要: The location scheme of the sensors in a shaking table test for a long distance buried pipeline was studied in this paper.The seismic response analyses of pipe-soil interactio...

摘要: Based on the single column station in Zhengzhou suburb railway engineering,soil material is considered as a series of springs to describe the deformation properties.A compara...

摘要: The actual site is a semi-infinite space and not only on the horizontal direction,but also on the downward are infinitely.In order to build the numerical model for site throu...

摘要: Nonlinear high order harmonics and ultrasonic coda waves are both stress sensitive to very small changes of cement based materials.Damage evolution on cement based specimens ...

摘要: Aiming at the low efficiency of traditional methods to determine the low cut-off frequency for filtering strong-motion records,this paper proposes an automatic search algorit...

摘要: Using three models i.e.bottom-layer constant velocity model,velocity gradient model and the extrapolation model with the travel-time averaged shear-wave velocities at two dif...

摘要: Luo'erling-Tudiling fault is one of the most important seismogenic structures in east Dabie region.However,there has been no sufficient research on this fault due to its geog...

摘要: In this paper,based on the comprehensive model4 (CM4),we calculated the latitude and longitude chain stations magnetosphere and its induction magnetic field,ionosphere and it...

摘要: The precise calibration of observing instruments plays an important part in the measurement of radon.The stability and reliability of the solid radon source are very crucial ...

摘要: By analyzing history earthquakes occurred during recently 10 years we found that the water temperature anomalous of the Jiangsu Su No.05 well and Su No.06 well have good rela...

摘要: The Zhangjiakou-Bohai fault belt,as one of the important active faults in North China,as well as earthquake-prone area,becomes one of the crucial region to monitor the earthq...

摘要: Double difference algorithm is used for Rushan swarm,selecting the ML≥ 1.5 earthquake catalogue recorded by Shandong Seismic Network and Rushan Array from May 7,2014 to Dece...

摘要: In this paper we describe the use of six rotor UVA oblique photography system and power of delta wing oblique photography system,and carry out related work oblique photograph...

摘要: In earthquake disaster rapid assessments,high accuracy based on spatial distribution of housing and demographic data are the most important of two sets of data,which greatly ...

摘要: The earthquake emergency rapid assessment system is an important component of the earthquake emergency command technology platform at all levels.It has played a prominent rol...

摘要: Insufficient aftershock information,which is one of the key factors to emergency rescue,directly affects the essential steps such as seismogenic structure determination and i...

摘要: Since buildings in rural areas are usually the worst case in the previous earthquake damage,improving their anti-earthquake performance is urgent and without any delay.Based ...

摘要: The anti-seismic capacity of rural buildings in China is of significant regional characteristics.Based on the investigation,this paper summarizes the structural characteristi...

摘要: In order to solve the unified access problem of seismic precursory nonstandard equipment,we analyzed the heterogeneity of seismic precursor network equipment.And then,a compl...