常规土地平整与激光平地技术组合应用初步分析

Study on combination of conventional and Laser controlled land grading procedures

在常规土地平整方法与激光平地技术组合应用实践基础上， 对两种平地方法的平整效果、作业效率及成本费用进行分析． 结果认为， 为达到费省效宏的组合平地应用形式， 在土地原始平整状况较差的渠灌区， 应首先采用常规平地方法进行粗平， 当田面平整精度与平地期望值的差值接近３ｃｍ 时， 再利用激光精平方法完成土地平整工作． 对田面平整度较高的井灌区， 也可直接采用激光平地技术完成土地精平．

The effectiveness, leveling rates and associated costs of conventional and Laser controlled land grading in the conditions of North China are illustrated. The analysis shows that in the stage of land preparation, the traditional rough grading can be used in earth moving procedure until the standard deviation of the field surface elevation approaches to 3 4cm. Then the Laser controlled method should be adopted in an effort to achieve the leveling precision needed.