龙脊古梯田稳定性与水循环系统研究{修}

分类号 T V 3 密级

U D C

硕士学位论文

龙脊古梯田稳定性及水循环

系统研究

学位申请人: 谭宁

学科专业 : 水利水电工程

指导教师 : 童富果教授

田斌教授

二○一二年五月A Dissertation Submitted in Fulfillment of the Requirements for the

Degree of Master of Science in Engineering

Study On Stability And Water Cycle System In Ancient Longji Terrace

Graduate Student: Tan-Ning

Major: Hydraulic And Hydroelectric Engineering

Supervisor: Prof. Tong-FuGuo

Prof.Tian-Bin

China Three Gorges University

Yichang, 443002, //.na

May, 2012三峡大学硕士学位论文

三峡大学学位论文独立完成与诚信声明

本人重声明 : 所呈交的学位论文 , 是本人在导师的指导下 , 独立进行研究工

作所取得的成果 , 除文中已经注明引用的容外 , 本论文不含任何其他个人或集体已经发表或撰写过的作品成果。对本文的研究做出重要贡献的个人和集体均已在文中以明确方式标明,本人完全意识到本声明的法律后果由本人承担。

学位论文作者签名:

日期:

I三峡大学硕士学位论文

摘要

梯田是古代劳动人民在农业生产中创造的一种行之有效的水土保持措施, 它的出

2

现是古代农业发展的一个显著进步。我国现有耕地总面积为1.21 亿 hm ,人均耕地

2

0. 08 hm , 只占世界人均耕地的 1/4。梯田具有良好的保水保土性能, 针对我国人多

地少、西南地区山岭丘陵分布、工业化进程中耕地日益减少

的局面, 推广坡改梯工程、

在适宜地方修筑梯田一方面可以更好的减少水土流失,另一方面可以增加耕地面积 ,

缓解我国耕地不足的局面。

龙脊梯田位于广西省龙胜县, 是一处我国古代农耕稻作文化遗存。研究龙脊梯田

灌溉系统的功能及水循环与水补给特点,探明与总结龙脊梯田存在机制与保护的经

验, 研究龙脊梯田稳定性与渗流特点, 对龙脊梯田稻作文化的保护与申报世界文化遗

产以及研究梯田规划建设标准,推广梯田建设技术,都具有重要的理论与实践意义。

本文通过对龙脊梯田的研究, 对梯田的保水保土性能进行了初步探索。主要研究容

包括:

(1) 对梯田的水循环系统进行了系统概括,并探究了梯田水循环的影响因素。

(2) 对龙脊梯田土物理性质进行实验研究,分析其特点;

(3) 概括总结了梯田稳定性与渗流分析方法;

(4) 考虑自然状态与降雨条件, 结合龙脊梯田, 进行了梯田的整体稳定性与田

埂稳定性计算;

(5) 考虑降雨条件下,结合龙脊梯田,进行了梯田的渗流计算

关键词 :梯田土物理性质水循环系统稳定饱和?非饱和渗流

II三峡大学硕士学位论文

Abstract

The ancient farmers create terrace in agricultural production which is an effective

water conversation measure. It’s a significant progress in the ancient agricultural

production. Currently China’s total cultivated area is 121 million square hectares. Per

capita farmland is only 0.08 square hectares, which is a quarter of per capita farmland of

world. Terrace plays a good performance in water and soil conservation. Our country has

large population and little arable land, while southwest of China has a large number of hills

and mountains as well as arable land is reducing in industrial processes, promote turning

slope fields into terrace and build

Located at LongSheng Town of Guangxi Province, Longji Terrace is one of China's

cultural relics of ancient rice farming.The function of the irrigation system of Longji

Terrace as well as the characteristics water cycle and water supply were studied in this

paper. It has great theoretical and practical significance for the protection of rice culture of

Longji Terrace, the application of world cultural heritage, the study of terrace planning and

construction standard and the promotion of terrace construction technology. In this paper,

Longji terrace have studied to preliminary explore the performance of remaining water and soil by

terrace. The main contents include:

1 The water circulation system of the terrace are summarized, and the impact factor of the water cycle of terraces are studied;.

2 The soil physical properties of Longji terrace are obtained by experiment, while its characteristics are analyzed;

3 Sability and seepage analysis methods of terrace are summarized;

4 The state of nature and rainfall conditions are