高海拔地区岩土渣场生态防护方案优选研究

在四川雅江县渣场防护工程布设了5种生态防护方案，选取了植被覆盖度、水土流失量、覆土稳定性、成本系数、实施难易程度作为评价指标，引入信息熵理论为指标确定权重，结合海明距离对5种生态防护方案进行优选排序。结果表明:植被覆盖度、水土流失量、覆土稳定性、成本系数、实施难易程度这5项指标的权重分别为0.19， 0.17，0.26，0.18，0.19。5种渣场生态防护方案的优劣排序为:客土喷播植物护坡＞土工格室植物护坡＞直接覆土撒播种子＞土工网垫植物护坡＞框格内填土植物护坡。

Study on Optimal Selection of Ecological Protection Schemes for Rock and Soil Dregs in High Altitude Areas

It has laid out five ecological protection schemes on slag yard protection construction in Yajiang county of Sichuan province, selected vegetation coverage, soil erosion, soil stability, cost coefficient, and ease of implementation as evaluation indicators, and introduced information entropy theory as the weight of the indicator, combining the Hamming distance to optimize sequence of five ecological protection schemes. The results show that the weights of the five indicators of vegetation coverage, soil erosion, soil stability, cost coefficient, and ease of implementation are: 0.19, 0.17, 0.26, 0.18, 0.19. The advantages and disadvantages of the five ecological protection schemes for slag yard are ranked as follows: soil spraying plant slope protection＞geogrid plant slope protection＞direct cover soil sowing seeds＞geomat plant slope protection＞frame protection plant slope protection.