吉林地质
吉林地質
길임지질
JILIN GEOLOGY
2013年
3期
99-101
,共3页
泥石流%非线性%分形理论%和龙市东城区
泥石流%非線性%分形理論%和龍市東城區
니석류%비선성%분형이론%화룡시동성구
debris lfow%nonlinear%fractal theory%Dongcheng District of Helong City
和龙市地处长白山脉东北部,地质环境质量较差,区内常有泥石流、崩塌、滑坡等地质灾害发生。该市东城区具备形成泥石流的条件,泥石流发生频繁。文章根据东城区34条泥石流沟的实际调查资料,采用分形理论,研究了泥石流沟谷形态的分形特征及其在不同观察尺度下分维值的变化特征。这种非线形关系在一定程度上揭示了该区泥石流沟谷演变的非均匀性和自相似性。
和龍市地處長白山脈東北部,地質環境質量較差,區內常有泥石流、崩塌、滑坡等地質災害髮生。該市東城區具備形成泥石流的條件,泥石流髮生頻繁。文章根據東城區34條泥石流溝的實際調查資料,採用分形理論,研究瞭泥石流溝穀形態的分形特徵及其在不同觀察呎度下分維值的變化特徵。這種非線形關繫在一定程度上揭示瞭該區泥石流溝穀縯變的非均勻性和自相似性。
화룡시지처장백산맥동북부,지질배경질량교차,구내상유니석류、붕탑、활파등지질재해발생。해시동성구구비형성니석류적조건,니석류발생빈번。문장근거동성구34조니석류구적실제조사자료,채용분형이론,연구료니석류구곡형태적분형특정급기재불동관찰척도하분유치적변화특정。저충비선형관계재일정정도상게시료해구니석류구곡연변적비균균성화자상사성。
Helong City is located in the northeast of Changbaishan Mountain range with a bad geologic environment,where debris lfow,collapse and landslide always break out. According to the survey data of 34 debris lfows gully in Dongcheng District of Helong City,with fractal theory, the writer did systematic research on fractal feature of debris lfow gully and its change features of fractal dimensions in different observation scales. The nonlinear relationship may reveal the non-uniformity and self-similarity of debris lfow gully evolution.