挡帕河生态综合治理护岸工程型式比选

Comparison and Selection of Revetment Engineering Types for Ecological Comprehensive Treatment of the Dangpa River

河道生态综合治理工程的护岸工程型式比选,对保障河道行洪安全和岸坡稳定性,提高河道生态环境效益具有十分重要的工程意义。为此,现以临沧市挡帕河治理工程的护岸工程实践案例为研究对象,了解治理河段的工程概况,围绕直立式、梯形、复式护岸及超级堤岸四种常见护岸断面形式,从基本功能及优缺点等方面展开护岸断面形式比选,优选出梯形护岸为河道整治的首选方案、局部可选择复式护岸;同时针对草皮、三维植被网草皮、生态土工袋植草、加筋麦克垫、格宾护垫、生态连锁块护坡和格宾石笼生态挡墙等七种常用护坡材料类型,通过对各种护坡材料优劣特点及技术经济综合比较,优选出斜坡护岸结构型式采用格宾石笼护坡。可为类似河道生态综合治理护岸工程型式比选提供借鉴参考。

The comparison and selection of revetment engineering types for river ecological comprehensive treatment project is of great engineering significance for ensuring the safety of river flood discharge and the stability and improving river ecological environment benefits.Therefore,taking the practice case of Dangpa River control project in Lincang City as the research object to understand the general situation of the control river project.Based on the four common types of vertical,trapezoidal,double revetment and super embankment,the paper compares and selects the four types of revetment from the aspects of basic functions,advantages and disadvantages.The trapezoidal revetment is selected as the preferred scheme for river regulation.The partial duplex revetment can be selected locally.At the same time,there are seven commonly used slope protection material types,such as net turf,ecological soil bag planting grass,reinforced Mack pad,gabion pad,ecological chain block slope protection and gabion stone cage ecological retaining wall.Through the comprehensive comparison of various slope protection materials and technical economy,optimthe slope revetment structure type using gabion cage slope protection is selected.It can provide reference for the comparison and selection of comprehensive treatment of similar river ecological revetment projects.