越浪对港内建筑物、船只和人员的安全构成威胁,也是导致海堤破坏的重要原因之一。因此,对越浪量的研究十分必要。基于某斜坡式防波堤的物理模型试验,得出相应的试验越浪量。同时针对堤前水位等影响因素,选取国内外经典的防波堤经验公式...越浪对港内建筑物、船只和人员的安全构成威胁,也是导致海堤破坏的重要原因之一。因此,对越浪量的研究十分必要。基于某斜坡式防波堤的物理模型试验,得出相应的试验越浪量。同时针对堤前水位等影响因素,选取国内外经典的防波堤经验公式,结合试验数据对各公式进行误差分析。结果显示:根据室内模型试验的限制范围,陈国平公式误差较小;VAN DER MEER的平均值方法计算结果整体上偏低于试验值;OWEN公式受波浪周期的影响较大,当波浪周期较大时,计算误差较大。展开更多
Based on the network monitoring data and field investigations,the basic characteristics of the M S4.9 earthquake at the juncture of Gaoyou and Baoying in Jiangsu Province on July20,2012 have been introduced,and the fo...Based on the network monitoring data and field investigations,the basic characteristics of the M S4.9 earthquake at the juncture of Gaoyou and Baoying in Jiangsu Province on July20,2012 have been introduced,and the focal mechanism solutions have also been obtained.According to the regional tectonic features and site macroscopic survey,the occurrence of the earthquake was probably related to the Yangchacang-Sangshutou fault.Based on site survey data,both the evaluation criterion of seismic intensity of this region and the seismic intensity maps have been proposed.According to the damage characteristics of brick-concrete structure and brick-wood structure,the main reasons of serious damage for buildings are poor foundation conditions,low seismic bearing capacity,poor quality of construction and disrepair.Considering the differences of earthquake damage in the different regions,advice on accelerating the new rural construction,improving the resistance against earthquake disasters of rural residential areas and strengthening the seismogenic research on strong and moderate size earthquake is proposed,which will be possibly helpful for earthquake damage survey,prediction and prevention.展开更多
文摘越浪对港内建筑物、船只和人员的安全构成威胁,也是导致海堤破坏的重要原因之一。因此,对越浪量的研究十分必要。基于某斜坡式防波堤的物理模型试验,得出相应的试验越浪量。同时针对堤前水位等影响因素,选取国内外经典的防波堤经验公式,结合试验数据对各公式进行误差分析。结果显示:根据室内模型试验的限制范围,陈国平公式误差较小;VAN DER MEER的平均值方法计算结果整体上偏低于试验值;OWEN公式受波浪周期的影响较大,当波浪周期较大时,计算误差较大。
基金Supported by Key Project of Suzhou Municipal Government,China(No.2009-191)Key Project of Xuzhou Municipal Government,China(T(2009)009)
文摘Based on the network monitoring data and field investigations,the basic characteristics of the M S4.9 earthquake at the juncture of Gaoyou and Baoying in Jiangsu Province on July20,2012 have been introduced,and the focal mechanism solutions have also been obtained.According to the regional tectonic features and site macroscopic survey,the occurrence of the earthquake was probably related to the Yangchacang-Sangshutou fault.Based on site survey data,both the evaluation criterion of seismic intensity of this region and the seismic intensity maps have been proposed.According to the damage characteristics of brick-concrete structure and brick-wood structure,the main reasons of serious damage for buildings are poor foundation conditions,low seismic bearing capacity,poor quality of construction and disrepair.Considering the differences of earthquake damage in the different regions,advice on accelerating the new rural construction,improving the resistance against earthquake disasters of rural residential areas and strengthening the seismogenic research on strong and moderate size earthquake is proposed,which will be possibly helpful for earthquake damage survey,prediction and prevention.
