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[來源:www.haradaip.com] [作者:淤泥固化] [日期:19-06-26]

河道整治措施
Measures for river regulation
一、防洪工程。加強河、庫治理,完善防洪減災體系,以堤防為基礎,控制性樞紐工程為骨干,防汛調度指揮系統為中樞,確保城鎮和重點地區的防洪安全。繼續加強建設以關田、鉛廠二個圩鎮防洪堤,并以此為輻射加強沿河兩岸農田的防洪護岸,另一個是以建立縣城防洪堤體系,拉動小江下游沿河兩岸的防洪基礎設施建設和重點河段河道整治。以發電和供水為主的水利樞紐要按照流域防洪規劃的要求,安排留足防洪庫容;按照分級負責的原則,抓緊進行病險水庫除險加固,加強水文測報、防汛調度指揮系統等非工程措施建設,逐步建立與經濟社會發展水平相適應的防洪減災保障體系。
1. Flood control works. Strengthen River and reservoir management, improve flood control and disaster mitigation system, take dike as the foundation, control hub project as the backbone, flood control dispatching command system as the center, to ensure flood control safety in cities and key areas. We will continue to strengthen the construction of flood control embankments in two towns, Guantian and Lead Factory, and use them as radiation to strengthen flood control and bank protection of farmland along both sides of the river. The other is to establish a county-level flood control embankment system to promote flood control infrastructure construction along both sides of the lower reaches of the Xiaojiang River and river regulation in key sections. The hydro-junctions with power generation and water supply as the main components should keep enough flood control reservoir capacity in accordance with the requirements of flood control planning of the river basin; according to the principle of graded responsibility, they should strengthen the construction of dangerous reservoirs, strengthen the construction of non-engineering measures such as hydrological forecast and flood control dispatching command system, and gradually establish a flood control and disaster reduction guarantee system that is compatible with the level of economic and social development.
二、水利建設。抓好大中型灌區的續建配套與技術改造,同時加快灌區管理體制和運行機制的改革,充分利用多種渠道籌集資金,加強灌區水利設施建設,搞好配套和農田水利基本建設。按照水利水資源有序開發的原則,充分發揮資源優勢,規劃和建設水力發電項目,使水電成為經濟發展的支柱產業。
2. Water Conservancy Construction. We should do a good job in the continuation, matching and technological transformation of large and medium-sized irrigation districts, accelerate the reform of the management system and operation mechanism of irrigation districts, make full use of various channels to raise funds, strengthen the construction of irrigation facilities, and do a good job in matching and basic construction of farmland water resources. According to the principle of orderly development of water resources and water resources, give full play to the advantages of resources, plan and build hydropower projects, so that hydropower becomes the pillar industry of economic development.
三、開口堤的修建。開口堤是在堤防的上游按一定標準設防,頭部以下堤防高度逐漸降低,尾部不建堤,這樣洪水就從尾部慢慢淹入區內滯納洪水,可防止洪水從堤防頭部進入保護區毀壞農田;洪水退后,保護區內洪水及時從尾部開口處排出,開口堤宜布置在干流區與河源區銜接段,還可與蓄滯洪區的布設相結合。這一技術的推廣著眼于減少干流區洪水損失,進一步提高干流區的防洪能力。
3. Construction of open dikes. Open dike is built in the upper reaches of the levee according to certain standards, the height of the dike below the head decreases gradually, and no dike is built at the tail, so that the flood slowly submerges into the area from the tail to detain the flood, which can prevent the flood from entering the protective area from the head of the dike to destroy farmland; after the flood recedes, the flood in the protective area is discharged from the tail opening in time, and the open dike should be arranged in the connecting section between the main stream area and the source area, and also. It can be combined with the layout of flood storage and detention areas. The popularization of this technology aims at reducing the flood losses in the main stream area and further improving the flood control capacity in the main stream area.
四、堤防上設置溢洪堰。堤防上設置溢洪堰是指在封閉式堤防上選擇一段,將其設計成允許洪水漫溢的堰壩,堰頂高程與規劃防洪水位齊平,當遇超標準洪水時,洪水可從溢洪堰溢入堤防保護區。這樣既可起到超標準洪水的滯洪,降低外口水位,保護重要城鎮等設施安全,又可平衡兩側水位,起到保護堤防安全,減少水毀工程的作用。
4. Spillway weirs shall be installed on embankments. Setting up spillway weir on embankment refers to choosing a section on closed embankment and designing it as a weir allowing flood to overflow. The height of weir top is equal to the planned flood control level. When the flood exceeds the standard, the flood can spill from the spillway weir into the protection area of embankment. In this way, it can not only detain the excessive flood, reduce the water level of the outer mouth, protect the safety of important towns and other facilities, but also balance the water level on both sides, protect the safety of embankments and reduce the damage of flood works.

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