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深水抛石护岸塞克格宾、防洪格宾石笼挡墙@宏利
格宾石笼护砌**的稳固了水流对河道的冲刷破坏，通过植生袋的铺设和边坡播撒草籽，改善了河道的生态环境，调节了局部小气候，解决了水土流失问题。根据观测，河道水质有很大改善，绿化面积增加。由于河道环境的改善，周围居民的垃圾倾倒现象也明显改善。这种工程措施和非工程措施相结合的**的起到防御洪水和增加景观性的双重目的。
但同时需要注意以下几个方面的问题：
（1）护脚是护坡工程措施中重要的组成部分，在发生的护坡破坏中多数是因为护脚深度不够和护脚措施不当引起的。防冲深度应考虑历史冲刷深度调查资料和冲刷深度计算等因素综合确定。
（2）护岸工程是河道整治工程的重点，选用生态护岸措施首先要考虑运行安全，同时要尽可能与周边环境相协调，并保证投资尽可能低。所以在设计过程中一定要进行多方案比较，择优采用。
（3）有些工程护坡范围不合理，顺直河道段非冲刷部位也采用硬护砌，兼顾生态环境不够。有些护坡过分强调生态措施，迎流顶冲、水土流失严重的险工段护坡方式不安全。
（4）生态护坡因地制宜，选材要结合当地材料的种类来进行，护坡与植物搭配使用要考虑适应当地生长的植物。
Penn stone cage to protect build by laying bricks or stones effective solid enough water damage to scouring of river channel, through vegetative bag laid and slope sow seed, improve the ecological environment of the river, adjusting the local microclimate, solve the problem of the soil and water loss.According to the observation, has a lot to improve river water quality, increase green area.As a result of the river environment improvement, waste dumping phenomenon has improved significantly in the surrounding residents.The combination of engineering measures and non-engineering measures effectively play a dual purpose of the flood prevention and increase the landscape.
But at the same time need to pay attention to the following issues:
(1) spats is the important part of the slope protection engineering measures, because most spats in the revetment damage happened caused enough depth and improper measures of spats.Impingement depth should consider the history of scour depth survey data and the calculation of scour depth are factors determined comprehensively.
(2) revetment engineering is the key of the channel improvement project, the selection of ecological revetment measures to consider safety first, at the same time as far as possible in harmony with the surrounding environment, and ensure the investment as low as possible.So in the design process must be more scheme comparison, merit.
(3) some of the engineering slope protection scope is unreasonable, straight river section of the scour part also USES hard build by laying bricks or stones, ecological environment is not enough.Some emphasize the ecological slope protection measures, to meet flow impact, soil erosion is serious unsafe water systems of slope protection method.
(4) the ecological slope protection adjust measures to local conditions, material selection should combine local materials, the kinds of slope protection and plant collocation is used to consider to adapt to the local growth of plants. |
