河北省邯郸市地裂缝成因探讨
DISCUSSION ON THE CAUSE OF THE GROUND FISSURES IN HANDAN CITY, HEBEI PROVINCE
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摘要: 邯郸市地裂由三个地裂带组成,呈北北东走向。1968年地裂急剧发展,1978年以后,邯郸市多处新建筑又受到地裂破坏,造成地面、房屋、管道、围墙破裂。地裂缝表现为张性,裂缝两侧伴随重直位置,个别点有顺扭现象。根据对邯郸市地面沉降、地下水水位变化以及邯郸断裂全新世活动资料的分析,我们认为,邯郸地裂特征与因地下水下降漏斗形成的地裂不同,邯郸地裂的形成是邯郸断裂现今活动的反映。Abstract: The Handan City ground-fissures are composed of three fault zones, striking NNE.The ground-fissures were developed rapidly in 1968.Since 1978 many new buildings h-ave been damaged by ground fissures.Cracks on many houses, enclosing wall, ground a-nd pipes.The fissures are tensional.There are vertical displacements on both sides of the ground-fissures.The clockwise-twisted appear in a few places phnomenon.Accord-ing to the analysis and synthesis of the ground subsidence in Handan City, the change of the groundwater level and the recent activity of the Handan fault, we think that the character of Handan City ground-fissures is different from that of the fissures w-hich are caused by the ground-water funnel.The formation of Handan City ground-fi-ssures is the result of recent activity of the Handan fault.
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