灾害学
災害學
재해학
Journal of Catastrophology
2015年
4期
91-95,106
,共6页
唐亚明%薛强%李政国%冯卫
唐亞明%薛彊%李政國%馮衛
당아명%설강%리정국%풍위
黄土滑坡%地质灾害%滑坡监测方法%监测预警%小流域地质灾害监测
黃土滑坡%地質災害%滑坡鑑測方法%鑑測預警%小流域地質災害鑑測
황토활파%지질재해%활파감측방법%감측예경%소류역지질재해감측
loess landslide%geo-hazards%landslide monitoring methods%monitoring and early-warning%geo-hazards monitoring in small watershed
不同类型的黄土滑坡其变形破坏特征存在不同,所适用的监测手段也不尽相同,而且区域性滑坡监测的思路和方法与单体有很大差异,因此对滑坡监测预警的技术方法做一个系统研究很有必要。该文从单体和区域两个尺度,从方法和实例两个角度,分别探讨了黄土滑坡监测预警的方法和实例。在单体尺度上,黄土崩塌、滑塌、滑坡有不同的变形破坏特征,应该根据各自的特点采用合适的监测技术和方法。在区域尺度上,可通过触发因素(降雨)的监测来进行滑坡预警,将滑坡风险区划与降雨临界值耦合以设定区域性的滑坡预警级别。据此分别对宝塔山斜坡和延安市宝塔区进行了单体滑坡监测和区域性滑坡预警。
不同類型的黃土滑坡其變形破壞特徵存在不同,所適用的鑑測手段也不儘相同,而且區域性滑坡鑑測的思路和方法與單體有很大差異,因此對滑坡鑑測預警的技術方法做一箇繫統研究很有必要。該文從單體和區域兩箇呎度,從方法和實例兩箇角度,分彆探討瞭黃土滑坡鑑測預警的方法和實例。在單體呎度上,黃土崩塌、滑塌、滑坡有不同的變形破壞特徵,應該根據各自的特點採用閤適的鑑測技術和方法。在區域呎度上,可通過觸髮因素(降雨)的鑑測來進行滑坡預警,將滑坡風險區劃與降雨臨界值耦閤以設定區域性的滑坡預警級彆。據此分彆對寶塔山斜坡和延安市寶塔區進行瞭單體滑坡鑑測和區域性滑坡預警。
불동류형적황토활파기변형파배특정존재불동,소괄용적감측수단야불진상동,이차구역성활파감측적사로화방법여단체유흔대차이,인차대활파감측예경적기술방법주일개계통연구흔유필요。해문종단체화구역량개척도,종방법화실례량개각도,분별탐토료황토활파감측예경적방법화실례。재단체척도상,황토붕탑、활탑、활파유불동적변형파배특정,응해근거각자적특점채용합괄적감측기술화방법。재구역척도상,가통과촉발인소(강우)적감측래진행활파예경,장활파풍험구화여강우림계치우합이설정구역성적활파예경급별。거차분별대보탑산사파화연안시보탑구진행료단체활파감측화구역성활파예경。
The monitoring methods that applied on different types of loess landslides should not be the same, which is due to the different characteristics of deformation of them.Furthermore,the monitoring method of a region differs greatly from of a single.So it is very necessary to study the loess landslides monitoring methods comprehen-sively.On the scale of single to region;and also on the view of methods to practice,we discuss the loess landslide monitoring and early-warning separately.For the scale of single slope,the loess fall,loess slump and loess slide have the different characteristics of their deformation,so it should be applied suitable monitoring methods on each of them.For the scale of region,the landslide early-warning can be done by monitoring the triggering factors for ex-ample rainfall.The alert level is set by the regional landslides risk zoning and the rainfall threshold.We practice the methods of monitoring single loess landslide on Baotashan slope,meanwhile the methods of monitoring regional loess landslide in Baota District of Yan’an area,and got the results separately.