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  flooded area
The study of the Abra ovata community existing on the flooded area of Sulakskii Bay in the Caspian Sea since the mid-1980s was continued.
      
Succession in the Abra ovata Community on Soft Grounds of a Newly Flooded Area of the Caspian Sea
      
Studies on succession in the Abra ovata community inhabiting the flooded area in Sulak Bay, Caspian Sea, that have been carried out since the mid-1980s were continued.
      
Visualization and damage assessment for flooded area
      
FLO-2D model creates a more accurate representation of the hazard area in terms of flooded area, but the results in terms of runout distances and deposits thickness are similar to DAN-W results.
      
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The risk degree of debris flow hazard on alluvial fans indicates the serious

泥石流堆积泛滥区危险度是指山地沟谷一旦发生泥石流后,在堆积区不同地段泛滥成灾的程度或最大威胁程度.本文探讨了泥石流堆积泛滥区危险度评价的指标体系,划分了四级危险度。应用泥石流二维非恒定流理论建立了危险度评价的数学模型。以云南东川市城区为实例,模拟了100年一遇超标准泥石流泛滥成灾过程,并作出泥石流堆积区的最大流速分布图、最大泥深分布图和危险范围内的危险度分区图.通过数值模拟取得了良好的效果。根据危险度评价结果,提出了该数学模型在减灾中的应用。

In view of the geological feature of Xuzhou region lying in the flood area of the former Yellow River, the pile-raft composite foundation is applied in the execution of works, but there are no district stipulations to the loads supported on the rafts in the existing architectural design specifications. In this case, taking the pile-raft composite foundation of a 9-storeyed frame structured building for example, the in situ measurement is made in order to test the bearing capacity of the rafts and the subsiding...

In view of the geological feature of Xuzhou region lying in the flood area of the former Yellow River, the pile-raft composite foundation is applied in the execution of works, but there are no district stipulations to the loads supported on the rafts in the existing architectural design specifications. In this case, taking the pile-raft composite foundation of a 9-storeyed frame structured building for example, the in situ measurement is made in order to test the bearing capacity of the rafts and the subsiding quantity of the building. The measured results show that with the effects of the soil reacting force and the groundwater pressure, the rafts are of certain load contributory proportions, and the building is of a small subsiding quantity and an uniform subsidence as well.

在现有建筑设计规范对筏板承担的荷载尚无明确规定的情况下,为验证在徐州地区故黄河泛滥区内采用桩-筏复合地基时筏板的承载情况及建筑物的下沉量,以框架结构的某9层大楼桩-筏复合地基为例,在现场原位对筏板的承载情况和建筑物的下沉量进行了测试.测试结果表明: 筏板受土反作用力及地下水压力的作用,具有一定的荷载分担率,建筑物的下沉量小且较均匀.

This paper approached an integrated methodology for urban debris flow loss estimation.Procedure of the methodology involved debris flow hazard zonation,image interpretation of urban land cover,model establishment for loss estimation,and property value calculation.Debris flow hazard zonation on the alluvial fan of the study area are created by overlaying distributed flow depth and velocity maps,which are produced through the numerical simulation.The possible loss estimation model is formulated based on stage-damage...

This paper approached an integrated methodology for urban debris flow loss estimation.Procedure of the methodology involved debris flow hazard zonation,image interpretation of urban land cover,model establishment for loss estimation,and property value calculation.Debris flow hazard zonation on the alluvial fan of the study area are created by overlaying distributed flow depth and velocity maps,which are produced through the numerical simulation.The possible loss estimation model is formulated based on stage-damage relationships between different debris flow hazard level and land-use features.Nowadays,earth observation techniques can contribute toward more accurate urban debris flow hazard modelling and they can be used to assess damage to residential properties,infrastructure and agricultural crops.For this study,detailed land cover information was derived by using the Quickbird high spatial resolution satellite imagery.Based on detail interpretation for the Quickbird image,the land cover of the study city was classified into 5 first level types,10 second level types and 16 third level types.We calculated and evaluated the economic loss to different land-use features based on a GIS statistical tool.

文章探讨了城市泥石流灾害损失评估的系统方法,该方法包括了泥石流堆积泛滥区危险区划、城市土地覆盖类型遥感解译、损失评估模型构建和价值核算4个主要内容。以美国高分辨率的“快鸟”卫星影象为数据源完成了研究区的土地覆盖类型遥感解译,根据泥石流危险程度和土地覆盖类型特征,构建了城市泥石流灾害的损失评估模型。最后,应用G IS提供的分析工具完成了研究区不同土地覆盖类型的泥石流灾害损失计算和评价。

 
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