人民黄河
人民黃河
인민황하
Yellow River
2015年
8期
48-51
,共4页
王静%代加兵%刘宏远%舒安平%张科利
王靜%代加兵%劉宏遠%舒安平%張科利
왕정%대가병%류굉원%서안평%장과리
河流塌岸%危险性评价%黄河宁蒙段
河流塌岸%危險性評價%黃河寧矇段
하류탑안%위험성평개%황하저몽단
bank failures%risk assessment%Ningxia-Inner Mongolia reach
选取黄河宁蒙段青铜峡至头道拐河段作为研究区域,以1 km为单位将全河段划分为835段,采用2010年TM遥感影像、2006—2010年黄河水文资料并结合Google影像,利用层次分析法建立塌岸危险性评价指标体系,对黄河宁蒙段两岸的塌岸危险性进行评价。结果表明:黄河上游宁蒙河段右岸塌岸危险性高于左岸,在三湖河口至头道拐段塌岸危险性高的河段以凹岸段为主;塌岸危险性较高的河段集中在银川至石嘴山段、乌海至磴口段以及昭君坟水文站附近河段,危险性最大的河段在昭君坟附近;在青铜峡水文站以下50 km河段和石嘴山水文站至乌海市乌达区的峡谷河段塌岸危险性最低;左右岸在石嘴山至巴彦高勒河段塌岸危险性的变化幅度最大。
選取黃河寧矇段青銅峽至頭道枴河段作為研究區域,以1 km為單位將全河段劃分為835段,採用2010年TM遙感影像、2006—2010年黃河水文資料併結閤Google影像,利用層次分析法建立塌岸危險性評價指標體繫,對黃河寧矇段兩岸的塌岸危險性進行評價。結果錶明:黃河上遊寧矇河段右岸塌岸危險性高于左岸,在三湖河口至頭道枴段塌岸危險性高的河段以凹岸段為主;塌岸危險性較高的河段集中在銀川至石嘴山段、烏海至磴口段以及昭君墳水文站附近河段,危險性最大的河段在昭君墳附近;在青銅峽水文站以下50 km河段和石嘴山水文站至烏海市烏達區的峽穀河段塌岸危險性最低;左右岸在石嘴山至巴彥高勒河段塌岸危險性的變化幅度最大。
선취황하저몽단청동협지두도괴하단작위연구구역,이1 km위단위장전하단화분위835단,채용2010년TM요감영상、2006—2010년황하수문자료병결합Google영상,이용층차분석법건립탑안위험성평개지표체계,대황하저몽단량안적탑안위험성진행평개。결과표명:황하상유저몽하단우안탑안위험성고우좌안,재삼호하구지두도괴단탑안위험성고적하단이요안단위주;탑안위험성교고적하단집중재은천지석취산단、오해지등구단이급소군분수문참부근하단,위험성최대적하단재소군분부근;재청동협수문참이하50 km하단화석취산수문참지오해시오체구적협곡하단탑안위험성최저;좌우안재석취산지파언고륵하단탑안위험성적변화폭도최대。
The study selected the Ningxia-Inner Mongolia reach of the upper Yellow River with a length of 835 km as a study area,and divid-ed it into 835 sections at intervals of 1 km. Based on the TM remote sensing of 2010 and the hydrological data of the Yellow River from 2006 to 2010,the study established an evaluation criterion system of bank failures with the method of Analytic Hierarchy Process (AHP)to assess the risk of bank failures in the Ningxia-Inner Mongolia reach of the Yellow River. The results indicate that the risk of the right bank of the reach is higher than that of the left bank on the whole. The reaches of high risk are in Ningxia-Shizuishan,Wuhai-Dengkou and Zhaojunfen, and the highest risk of bank failures appears in Zhaojunfen reach while the lowest risk of bank failures occurs in the 50 km reach downstream Qingtongxia Hydrological Station and the valley reach from Shizuishan Hydrological Station to Wuhai. The risk of bank failures of both banks changes violently in the reach of Shizuishan-Bayan Gol.