中国黄土山城“依山造居”的几个灾害问题讨论(Ⅲ)──黄土沉陷分析
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摘要
对中国黄土山城“依山造居”的几个灾害问题(如黄土层地震反应、黄土滑坡、黄土沉陷、黄土泥流等)进行了分析,在此重点讨论黄土沉陷(包括湿陷与震陷)问题。根据大量的实验结果,分析了灌溉使黄土体的物理、力学性质发生变异的原因,并以兰州市皋兰山为例进行了现场浸水试验,求取了黄土山坡的自重湿陷量,同时又对黄土的震陷做了简略地描述。最后提出了灌溉、强降雨、地震所形成灾害链的防治对策。
Some hazards,like loess seismic response,landslide,settlement and mud flow in city building along loess mountain in china,such as the cities of Lanzhou, Xining, Baoji,Tianshui and Yan'an,etc.are discussed.Based on the reference 1 and 2, the problem of loess settlement is studied which deal with loess collapse and seismic subsidence.According to a large number of loess physic and mechanic tests, loess dynamic test and field test permeameter,the property of loess is analysed. Finally, countermeasure of hazard prevention is submitted.
引文
1王家鼎.中国黄土山城“依山造居”的几个灾害问题讨论(Ⅰ)──黄土层地震反应分析.西北大学学报(自然科学版),1995,25(5):461~4642王家鼎.中国黄土山城“依山造居”的几个灾害问题讨论(Ⅱ)—黄土滑坡分析.西北大学学报(自然科学版),1996,26(1):57~613李保雄.永靖黑方台灌区黄土沉陷灾害、土体工程地质性质变异初步研究.甘肃科学学报,1991,3(2):57~664ZhangZhenzhongandDuanRuwen.DiscussiononseismicsubsidenceofloesssiteinNerhwestofChinaduringearthquake.proceedingofInternationalSymposiumonEngineeringGeologyProblemsinSeismicAreas,1986,2:65~76(Italy)

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