河道近自然治理提高河道岸坡相对平衡坡度的研究——以重庆市长寿区桃花溪为例  

Improving the Relative Balance Slope Gradient of River Bank by Near Natural Control of River——A Case Study in Taohua Stream in Changshou District of Chongqing City

作　　者：雷声坤[1] 王玉杰[1] 王云琦[1] 孟凡超[1] 赵占军[1] 冯华敏[1] 易琴[1] 朱蔚利[1] 

机构地区：[1]北京林业大学水土保持学院,北京100083

出　　处：《湖南农业科学》2011年第12期76-78,共3页Hunan Agricultural Sciences

基　　金：国家林业局948项目(2007-04-14);中央高校基本科研业务费专项(YX2011-26)

摘　　要：为研究近自然治理技术对河道岸坡稳定性的影响,在重庆市长寿区桃花溪筛选布设自然原型护岸、天然材料织物垫护岸、土工织物扁袋护岸3种近自然护坡技术并以裸地为对照进行试验。结果表明,经过两年的自然修复后,由土壤抗剪强度方程得出3种技术护岸及对照裸地岸坡相对平衡坡度:自然原型护岸(35.0°)>土工织物扁袋护岸(30.3°)>天然材料织物垫护岸(26.2°)>裸地(19.9°)。以裸地为对照,自然原型护岸、土工织物扁袋护岸、天然材料织物垫护岸分别提高岸坡相对平衡坡度15.1°、10.4°、6.3°。In order to study the influence of near-natural control technologies to the slope stability of river bank, a experiment was conducted that natural prototype bank revetment, fabric mat with natural materials bank revetment and fiat bag with geotextile bank revetment were selected as three measures of approaching to the natural slope protection, and bare land was taken as a control test in Taohua stream in Changshou District of Chongqing City. The results showed that after two years of natural restoration, the relative balance slope gradients of the three bank revetment techniques and bare land were derived from soil shear-resistance strength equation as follows： natural prototype bank revetment （35.0）〉 fiat bag with geotextile bank revetment （30.3°）〉fabric mat with natural materials bank revetment （26.2°）〉bare land （19.9°）. So in comparison with the bare land, the relative balance slope gradients of natural prototype bank revetment, flat bag with geotextile bank revetment and fabric mat with natural materials bank revetment could be enhanced by 15.1°, 10.4° and 6.3°, respectively.

关 键 词：河道护岸 土壤侵蚀 相对平衡坡度 

分 类 号：TV212.52[水利工程—水文学及水资源]