河道整治治理措施-天津三川恒泰淤泥固化处理/吹填土地基处理公司

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        1. 您现在的位置:首页 >金城娱乐 >> 河道整治治理措施
          [来源:www.hardwickmg.com] [作者:淤泥固化] [日期:19-03-16]

          河道整治治理措施
          Measures for river regulation
          1. 山溪性河道治理
          1. Regulation of mountain and stream rivers
          (1)滩地的保留和利用
          (1) Reservation and Utilization of Beach Land
          滩地是山溪性河道的特有产物。一般河道滩地较开阔,洪水期水流漫滩,利于行洪滞洪,应保留其功能,并充分开发利用。流经城区的河道,在维持滩地行洪功能的同时,利用滩地设置绿化地、公园、交通辅道和运动场所,开发其休闲、亲水功能,成为市民娱乐、健身、游玩的好地方。整治中,顺应河势,因河制宜,保留河滩和弯道,恢复河道的天然形态,减少河床的坡降,降低洪水位,减少洪峰压力,同时可降低防洪堤的高度。另外,弯曲的水流更有利于生物多样性,为各种牛物创造了适宜的生存环境。
          Beach land is a unique product of mountain and stream rivers. Generally, the river beach is wider and the flood season is flooded, which is conducive to flood discharge and detention. Its function should be retained and fully exploited and utilized. The rivers flowing through the urban area, while maintaining the flood discharge function of the beach, use the beach to set up green land, parks, traffic accessory roads and sports places, develop their leisure and hydrophilic functions, and become a good place for citizens to entertain, exercise and play. In the course of regulation, we should conform to the river regime, adjust measures to the river conditions, retain the beaches and bends, restore the natural form of the river, reduce the slope of the river bed, reduce the flood level and peak pressure, and at the same time reduce the height of the flood dike. In addition, the curved flow is more conducive to biodiversity and creates a suitable living environment for cattle.
          (2)复式断面的设计
          (2) Design of Compound Section
          山溪性河道一般河滩开阔,河道断面设计可采用复式断面形式。枯水期流量小,水流归槽主河道;洪水期流量大,允许洪水漫滩,过水断面大,洪水位低,一般不需修建高大的防洪堤。枯水期根据河滩的宽度和地形、地势,结合当地实际充分开发河滩的功能:如滩地较宽阔,一般可开发高尔夫球场、足球场等大型或综合运动场;河滩相对较窄的可修建小型野外活动场所、河滨公园或辅助道路等。河滩的合理开发利用,既能充分发挥河滩的功能,又不因围滩而抬高洪水位,加重两岸的防洪压力。 [2]
          Generally speaking, the riverbanks of mountain and stream rivers are open, and the design of river cross-section can adopt the form of compound cross-section. In dry season, the discharge is small, and the flow returns to the main channel; in flood season, the discharge is large, allowing floods to overflow beaches, large cross-section and low flood level, so it is generally not necessary to build tall flood dikes. In dry season, according to the width, topography and topography of the river beach, the function of the river beach can be fully developed according to the local reality: for example, the beach is wider, large-scale or comprehensive sports fields such as golf courses and football fields can be generally developed; for the relatively narrow river beach, small field places, riverside parks or auxiliary roads can be built. Reasonable development and utilization of riverbanks can not only give full play to the function of riverbanks, but also raise flood level due to beach enclosure, thus increasing the pressure of flood control on both sides of the river. [2]
          (3)防冲不防淹的矮胖型堤坝设计
          (3) Design of short and plump dikes that can not prevent scouring and flooding
          山溪性河流具有河床坡降陡、洪水暴涨暴落的特点,高水位历时短,流量集中,流速大,对沿河堤坝、农田冲刷严重:通过规划,采用防冲不防淹的矮胖堤型设计,保护区下游堤段开口.还河流以空间,给洪水以出路,允许低频率洪水漫坝过水,确保堤坝冲而不垮,农田冲而不毁。以防洪为主要功能的农村河道,堤防基础冲刷严重,可采用松木桩基础,投资省、整体性好、抗冲能力强,以提高堤防的整体性和稳定性。
          Mountain-stream rivers have the characteristics of steep slope of riverbed and sudden rise and fall of flood, short duration of high water level, concentrated discharge, high flow rate, and serious erosion of dykes and farmland along rivers: through planning, the design of low-fat dikes without flooding prevention is adopted to protect the opening of lower reaches of dikes. The rivers are also provided with space to provide outlets for floods, allowing low-frequency floods to overflow dams, and ensuring that dikes do not collapse. Farmland is washed away but not destroyed. In rural rivers with flood control as the main function, the foundation of dikes has been scoured seriously. Pine pile foundation can be used to improve the integrity and stability of dikes with low investment, good integrity and strong scour resistance.

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