治沟造地项目中土地平整工程特点及施工工艺分析

Analysis of the characteristics and construction technology of land leveling projects in gully reclamation project

治沟造地项目中土地平整工程主要可以分为坡改梯、沟台地整治及梯田改造三大类。为总结分析三种土地平整工程的特点及施工难点,以期为今后治沟造地项目中土地平整提供相应的参考及依据。本文以黄龙县界头庙镇白家河土地整治项目为例,分析了三种土地平整工程的特点及施工难点,并针对不同土地平整工程的施工难点,提出了相应的解决措施。研究表明:通过合理安排施工工艺及顺序、严格控制田坎土方的含水量等措施可以解决坡改梯工程中如何最大限度保护表土以及保持田坎稳定性等施工难点;通过开挖截水沟可以解决沟台地工程中地块下湿的施工难点;通过集中在田块休息期实施可以解决梯田改造工程中地块耕种的施工难点。

The land leveling types of gully land are mainly divided into slope terracing,gully platform and terrace modification in the gully reclamation.In order to summarize and analyze the characteristics and construction difficulties of the three kinds of land leveling projects,it is expected to provide the corresponding reference and basis for the future land leveling projects in the gully reclamation projects.This paper takes Baijia river land reclamation project in Jietoumiao town,Huanglong county as an example,analyses the characteristics and construction difficulties of three types of land leveling and puts forward correspinding.The research found that the construction difficultis of protecting topsoil to the maximum extent and maintaining the stability of the ridge can be solved by reasonable arrangement of construction technology,sequence and strict control of the moisture content of the ridge earthwork in slope-to-terrace modification project.The construction difficulty of the changing wet gully platform to dry can be solved by digging intercepting ditch in gully platform project.The construction difficulty of land farming can be solved by implementing terracing modification project in the field rest period.