Experimental Study on Scouring and Silting Deformation of Artificial Beach Under Storm Surge-Wave Coupling     

SUN Tian-ting  HU Po  PAN Jun-ning  HOU Yi-jun  MO Dong-xue  WANG Deng-ting 《中国海洋工程》2022,36(1):65-75

With the increasing construction of artificial beach in coastal areas, it is of practical significance to study the beach surface deformation of artificial beach profile. Previous studies only focus on a single wave dynamic factor, and it is difficult to predict the beach deformation of artificial beach profile under the storm surge-wave co-action. To solve this problem, the cross-section physical model test method was used to study the beach surface deformation of a typical artificial beach pro...  相似文献   

Experimental Investigation of the Response of Monopiles in Silty Seabed to Regular Wave Action     

HUANG Ting  ZHANG Ji-sheng  HOU Li-jun  WANG Rong  CHENG Ning 《中国海洋工程》2022,36(1):112-122

Excessive displacement responses of monopiles affect the serviceability of offshore structures. Related to complicated pile-seabed-wave interactions, the actual behavior of monopiles in silty seabed under periodic wave action remains unclear, and relevant studies in the literature are limited. A series of experiments were conducted in a wave flume containing single piles in silty seabed with relative density of 0.77 subjected to regular waves. Two stages of wave loading were applied successively...  相似文献   

基于GIS的上海市控制性详细规划编制与审查管理系统的设计与建设     

黄厚 《测绘与空间地理信息》2013,(1):146-147,151

介绍了上海市控制性详细规划编制与审查管理系统的建设背景,通过分析目前规划部门的GIS应用现状,以及控规编制与审查管理的应用需求,从控规设计、审查、入库三个方面详细介绍了系统建设的功能模块设计与定位,明确了系统研究的主要目标和建设方向。  相似文献   

An automatical infill shot method for uniform imaging of target layer     

Hu Zhao  Cheng Yin  Peng-Jun Hou  Long-Chuan Pu  Yong Huang  Guo-Hui Yuan 《应用地球物理》2013,10(2):222-228

Seismic imaging quality is critical to describing reservoirs. There are many methods that can improve imaging quality; some rely on advanced processing means, whereas others rely on changing the field acquisition methods. However, most of the acquisition methods focus on improving imaging by using infill shots without considering the target-layer illumination energy. Moreover, total infill shooting greatly increases the acquisition cost. In this paper, we present a new method for maximizing the contribution to the target shadow area illumination by automatic local infill shooting. Thus, we designed 2D and 3D models and obtained the depth migration section by forward modeling, infill shots, depth migration, etc. The model results also show that by choosing the most appropriate number of shot points, we can enhance the shadow area energy and improve the target-layer imaging quality at low cost.  相似文献   

地球自转对强震震中附近中小地震的影响     

王恒信  郭祥云  李艳娥  陈学忠  侯海东 《地震地磁观测与研究》2013,(5):52-60

论述2008年5月12日四川汶川Ms8.0地震和2010年4月14日青海玉树Ms7.1地震前震中附近中小地震和地球自转季节性变化的关系,介绍1970年以来中国大陆其他14例M≥7.0地震震例.研究发现,在强震前几年时间内,震中附近地区的中小地震有偏向发生于地球自转速率季节性变化加速或者减速某一阶段的现象.该结果对深入认识地震与地球自转之间的关系具有一定启示意义,对地震预测具有一定指导意义.  相似文献   

基于移动平台地震速报短信客户端(EQSMS)的设计与实现   总被引：1，自引：0，他引：1  

侯建民 《地震地磁观测与研究》2013,34(3)

通过地震速报短信客户端软件(EQSMS),当用户收到速报短信后即可实时查看速报震中的矢量地理信息、卫星影像信息和震中距等数据,便于应急人员对灾害评估和应急救援等及早做出反应和工作部署.  相似文献   

《地震科技文献分类标引规则》的编制与形成     

梁凯利  马玉香  马小玲  侯艳艳  王峰 《国际地震动态》2013,(8):34-37

根据地震科技文献管理的实际和特点,制定了《地震科技文献分类标引规则》,弥补了地震科技文献管理中的一项空白,规范了地震科技文献分类标引的原则、基本规则和深度控制。  相似文献   

The LEGUE disk targets for LAMOST＇s pilot survey     

Li Chen  Jin-Liang Hou  Jin-Cheng Yu  Chao Liu  Li-Cai Deng  Heidi Jo Newberg  Jeffrey L. Carlin  Fan Yang  Yue-Yang Zhang  Shi-Yin Shen  Hao-Tong Zhang  Jian-Jun Chen  Yu-Qin Chen  Norbert Christlieb  Zhan-Wen Han  Hsu-Tai Lee  Xiao-Wei Liu  Kai-Ke Pan  Jian-Rong Shi  Hong-Chi Wang  Zi Zhu 《天体物理学报》2012,(7):805-812

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The LEGUE input catalog for dark night observing in the LAMOST pilot survey     

Fan Yang  Jeffrey L. Carlin  Chao Liu  Yue-Yang Zhang  Shuang Gao  Yan Xu  Li-Cai Deng  Heidi Jo Newberg  Sebastien Lepine  Jin-Liang Hou  Xiao-Wei Liu  Norbert Christlieb  Hao-Tong Zhang  Hsu-Tai Lee  Kai-Ke Pan  Zhan-Wen Han  Hong-Chi Wang 《天体物理学报》2012,(7):781-791

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Influence of Quaternary paleoclimate change on the permeability of the loess–paleosol sequence in the Loess Plateau,northern China     

Kai Hou  Hui Qian  Qiying Zhang  Tao Lin  Yao Chen  Yuting Zhang  Wengang Qu 《地球表面变化过程与地形》2020,45(4):862-876

Permeability differences in multi-cycle loess–paleosol aeolian sediments, which are still poorly understood, have the potential to significantly improve our understanding of climatic change during the glacial–interglacial periods of the Quaternary. In this study, the permeability of a well-preserved and continuous loess–paleosol sequence in the South Jingyang Plateau was investigated. Weathering intensity was inferred using a series of climate proxies including grain-size distribution, magnetic susceptibility and mineralogy. The results of laboratory tests showed that the average saturated hydraulic conductivity of loess layers is higher than that of paleosol layers. Also, clear differences between loess and paleosol were found in terms of depth variations of the vertical and horizontal saturated hydraulic conductivities. Differences in loess–paleosol were also found for other proxies for pedogenic weathering [i.e. clay content, sand content, Kd value (ratio of coarse silt to clay), magnetic susceptibility, dolomite content and the ratios of hornblende/illite and hornblende/chlorite]. Our results showed a high permeability of loess layers associated with weak pedogenic weathering during cold/dry paleoclimatic conditions in glacial stages. On the contrary, paleosol layers developed in a warm/humid climate during the interglacial stages experienced strong pedogenic weathering that resulted in lower permeability. Based on these results, we construct a connection between Quaternary climate change theory and the modern hydrological system. This provides a scientific basis for investigating the distribution and pollution of groundwater resources in the local region. © 2020 John Wiley & Sons, Ltd.  相似文献