河北平原地裂缝形成机制与防治

The formation of ground fracture and its prevention measure

河北平原从20世纪80年代开始至今,出现大量地裂缝,使建筑物和道路交通遭受破坏,人民生活受到干扰,给国家和地方造成一定的经济损失,直接威胁着工农业生产和人民生活。笔者在广泛调查基础上,总结出三种成因类型有:地动型、潜蚀型、胀缩型,揭示了不同类型地裂缝发生与发展的规律。

A lot of fractures developed in Hebei Plain since 1980`s,which damaged buildings and traffic roads.The fractures as a kind of hazards disturbed the normal human life in the area and directly threaten the local industrial and agricultural production,which results in loss to national and local economics.Based on widely investigation,the author has summarized 3 types of fractures in different origins as follows:groundmoving type,groundwater resolving type and expansioncontracting type,which have revealed evolution process for different types of fractures.Prevention measures have been put forwards for the fractures.