上海国土资源
上海國土資源
상해국토자원
SHANGHAI LAND&RESOURCES
2014年
4期
49-52,57
,共5页
吕凤兰%马学军%邵长庆%宋伟
呂鳳蘭%馬學軍%邵長慶%宋偉
려봉란%마학군%소장경%송위
河北平原%地裂缝%分布特征%成因分析
河北平原%地裂縫%分佈特徵%成因分析
하북평원%지렬봉%분포특정%성인분석
Hebei plain%ground ifssure%distribution characteristics%causes analysis
以大量实地调查和资料收集为基础,论述了河北平原地裂缝发育现状及分布特征,总结了地裂缝时空分布规律和形成的主要影响因素。河北平原地裂缝分布普遍,其活动具有区域上的成带性与局部地段的相对丛集性,发育由南向北扩展,走向也大多为特定的几个方向,有些地裂缝具有反复活动性。对河北平原地裂缝的成因进行统计分析,其主要包括断层蠕滑地裂缝、地震引发的次生地裂缝、浅层地下水水位下降引起的地裂缝、地层不均匀导致不均匀沉降产生的地裂缝以及岩溶塌陷和采空区塌陷引起的地裂缝等。地裂缝往往是几种因素的综合作用,其中以某一种因素作为主导。对不同的地裂缝进行成因分析,可采取不同的防治应对措施,从而最大限度地减少损失。
以大量實地調查和資料收集為基礎,論述瞭河北平原地裂縫髮育現狀及分佈特徵,總結瞭地裂縫時空分佈規律和形成的主要影響因素。河北平原地裂縫分佈普遍,其活動具有區域上的成帶性與跼部地段的相對叢集性,髮育由南嚮北擴展,走嚮也大多為特定的幾箇方嚮,有些地裂縫具有反複活動性。對河北平原地裂縫的成因進行統計分析,其主要包括斷層蠕滑地裂縫、地震引髮的次生地裂縫、淺層地下水水位下降引起的地裂縫、地層不均勻導緻不均勻沉降產生的地裂縫以及巖溶塌陷和採空區塌陷引起的地裂縫等。地裂縫往往是幾種因素的綜閤作用,其中以某一種因素作為主導。對不同的地裂縫進行成因分析,可採取不同的防治應對措施,從而最大限度地減少損失。
이대량실지조사화자료수집위기출,논술료하북평원지렬봉발육현상급분포특정,총결료지렬봉시공분포규률화형성적주요영향인소。하북평원지렬봉분포보편,기활동구유구역상적성대성여국부지단적상대총집성,발육유남향북확전,주향야대다위특정적궤개방향,유사지렬봉구유반복활동성。대하북평원지렬봉적성인진행통계분석,기주요포괄단층연활지렬봉、지진인발적차생지렬봉、천층지하수수위하강인기적지렬봉、지층불균균도치불균균침강산생적지렬봉이급암용탑함화채공구탑함인기적지렬봉등。지렬봉왕왕시궤충인소적종합작용,기중이모일충인소작위주도。대불동적지렬봉진행성인분석,가채취불동적방치응대조시,종이최대한도지감소손실。
Using data obtained from an extensive survey of the Hebei plain, this paper discusses the status and distribution of ground ifssures, and summarizes their spatial and temporal distribution and main causes. Ground ifssures occur widely on the Hebei plain, and have the tapability on the region and have a relatively cluster in local area. These ifssures develop from south to north, and most have speciifc directions. Some ifssures show repeated activity. Statistical analysis identiifed several types of these ground ifssures:those caused by fault creep, secondary ifssures triggered by earthquakes, ifssures caused by lowering of the shal ow water table, those caused by uneven settlement induced by uneven ground, those caused by karst and cave col apse, and so on. Ground ifssures are often caused by several factors, but there is always one dominant factor. By analyzing the different causes of ground ifssures, we can implement appropriate response measures and so minimize losses.