Abstract: This paper mainly discusses some basic relations between channel water destruction and neotectonic field in Mingjiang river with the Scheidegger method and Dephel method. The results indicate that channel water destriction is a function of relations between neotectonic field and orient distribution of the channel, direction of realignment buildings in the channel. On the basis of that we provide a potential approval model of channel water destruction:P=147(k_xi+k_yi+k_zi)-93. The model has proved reasonable after computations of some typical shoals in Mingjiang river. The total value of the channel in the model is 85. So we can conclude that Mingjiang navigation channel is likely to be easily destroyed by water.

Key words: Mingjiang River navigation channel, neotectonic field, potential approval model of water destruction

摘要： 本文运用Scheidegger法通过对岷江中下游地区新构造应力场、岷江航道、滩险及整治建筑物分布的分析,发现航道水毁与区域新构造应力场有密切的关系,并在此基础上运用Dephel法提出了航道水毁潜力评价模型:P=147(k_xi+k_yi+k_zi)-93经验证,表明该模型与实际水毁状况相符,岷江航道水毁总潜力值为85。从新构造应力场出发为内河航道的整治和维护提供了一条宏观措施。

关键词: 岷江航道, 新构造应力场, 水毁潜力评价模型