典型滑坡灾害损毁农田类型及动力模式研究

Research on the Types and Dynamical Models of Farmland Damaged by Typical Landslide Disaster

针对滑坡灾害损毁农田的特点,采用资料收集、现场调查、数理统计等方法,收集整理了全国范围内数十例典型滑坡损毁农田的案例,分析了不同滑坡条件下农田损毁的共同特征及表现形式,总结提出滑坡灾害损毁农田的四类基本类型,即:溃散损毁、碎裂损毁、压埋损毁和冲蚀损毁;采用工程地质分析方法,分析了不同损毁类型的形成机制及控制因素,提出了典型滑坡损毁农田的8类动力模式;建立了滑坡灾害损毁农田的类型及动力模式分类体系,并给出了不同损毁类型下农田的主要修复方向。

Aiming at the features of farmland damaged by landslide disaster, tens of typical cases of farmland damage in nationwide scope are collected with the methods of literature collection 、field investigation and mathematical statistics, the four basic types of damage such as break ranks damage 、fragmentation damage 、burying damage and scour damage are proposed after summarizing and analyzing the common characteristics and manifestations of farmland damage in conditions of different landslide; the method of engineering geology analysis is adopt to analyze the forming mechanism and controlling factors of different damage types, and eight dynamic models are put forward; then, the classified system of farmland damage types and dynamic models caused by landslide disaster are built, also the main repairing direction of different damage types are given.