Tuan Cheng Lake in Beijing will build 185 hectares of water in open channels _ | | round city from South to North Lake news

Beijing News dispatch (reporter Wu Wei) yesterday, reporters from the Beijing round city from South to North Lake's Office was informed that, after the first phase of the Middle route water, as at the end of the whole project, the largest urban area water supply hub, Tuan Cheng has undertaken the planning of water environment of the Lake and the surrounding ecological conservation efforts.

It is reported that next year's Office together with the Haidian District water authority to control the environment. Tuan Cheng, channel 185 hectares of land in and around the Lake include water source protection areas and plan for ecological restoration project, with the "three-five" eco-landscape in one building. In addition, Tuan Cheng Lake channel's future is also planning to construct a North Memorial and Education Center.

Located in the Haidian District, Tuan Cheng channel is the main channel of water diversion from the Lake at the end of the project, Beijing only in a water channel. Nullah length of 885 m, in trapezoidal form water, normal 49 meters include Jinhe draw cylinders, boat battalion Lake bridge, terminal gate and Tuan Cheng adjusting pool water into four parts.

According to reports, the current round city administration in the North of the lake water environmental monitoring of water quality at the same time, begin to summarize their surrounding waters sewage and storm water. Starting next year, the Directorate will be summarized to the Haidian District after the water supplies Department, surrounding water environment comprehensive treatment in open channels will be launched. Regulation including waters modification such as Gold River, four ring ditches, as well as sewage, rainwater and other work.

Tuan Cheng Fang Yanmei, Deputy Director, Lakes Management Service told reporters from South to North, Tuan Cheng Lake channel close to the summer palace, Haidian District, will be incorporated into the planning of "three-five" (Providence to the fragrant Hills Park, Yu Quan Wan Shou Shan Qing Yi Park, shanjingming Park, the summer palace, Chang Chun Yuan), eco-renovation one, "in the future restoration of Western hills water system, can also be used to channel water. ”

For route of water safety, Tuan Cheng Lake management service within the jurisdiction of the buried culvert under the Marco Polo Bridge, culvert to the West ring round city 18.8 km Lake channel culvert inspections. According to the regulation, it tube borders extend 50 metres without excavation, building damage such as water security.

It is reported that the Administration will be inspected daily, encounter important for night time node will also check, guarantee the safety of middle route of water to Beijing.

　　Watch 1

"Flexible" bank freezes do not crack

Winter, the weather is getting colder, freezes water will have an impact on the Middle route project of water? In this regard, the Director Wang Shaobin introduction of the Beijing Water Conservancy Planning Institute building, has little effect on water surface freezes, and culvert pipe water temperature will be controlled at around 10 c, easy frozen dark culvert. "Communicates with the outside temperature at the gate, once the ice will plug the pipe. We will start the melt pump, remain at the gate in the glacial flow up and down cycle to prevent freezing. ”

In addition, the frozen water expands revetment can be easily cracked, how about this? Tuan Cheng Lake Management Office official Liu Jianqiong introduced concrete slope relative to the normal channel "rigid" revetment, revetment bricks, pebbles and other built in open channels, of a "flexible" revetment. "There are gaps between bricks, external forces can also be moved slightly, water freezes expansion of power so you can dispel without revetment cracking. ”

　　Watch 2

Fish nest brick can grow plants for spawning

Tuan Cheng Lake channel and adjust the bottom of the pool and laid a layer can grow plants for oviposition of "fish nest brick". "The fish nest brick" from embedded vegetation retaining walls, brick ecological hole may be planting flowers. According to reports, the round City Lake "fish nest brick" aquatic plants grown on sites dedicated to the fish reproduce themselves by layingeggs play "to fish and raise water" effect, keep the whole ecological balance of water. Meanwhile, brick permeable and can guarantee the exchange of water between the river and the river water, inhibits growth and reproduction of the algae, water self-purification role to play.

In addition, Tuan Cheng Lake channel and adjust the adjustable not only bear the route in Beijing after the pool water feature, is also one of the BWI. Small rolling near the water slope, slope planted with trees. According to administration officials who briefed, all on a small slope vegetation below the topsoil is covered with a layer of coconut shell of silk "coconut carpet." This carpet is similar to a layer of mulch, and when it rains, rainwater flows down along the coconut carpet surface they do not take the sand. In this way, heavy rain is not sand into pool, thereby affecting the water quality of water intended for human consumption. The Beijing News reporter Wu Wei

(Original title: Tuan Cheng Lake 185 hectares will be built in open channel water source protection area)

The Beijing News