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新河为大沙河左岸一级支流,属海河流域卫河水系,其中新河源头灵泉湖以下到普济河入河口,长3.25 km。该河段无支流汇入,为灵泉湖多年下泄自然冲刷下切形成。河道主槽宽5~10 m,河底高低不平,河两岸宽约12~18 m,两岸岸坡高约1.50~2.80 m。该段河道为自然河道,从未进行过治理,现状河道淤积严重,断面萎缩,丧失了生态功能。由于该河道承担向龙源湖公园供水任务,因此对新河源头河道综合治理十分必要,规划布置在渠首设进水闸一座,河道治理断面采用上陡下缓梯形断面,其中焦晋高速公路以西采用底宽5 m,正常水位以下边坡1:3,以上1:2,河道比降1/1000;焦晋高速公路以东底宽10 m,正常水位以下边坡1:5,以上1:3,河道比降1/1700。同时考虑到河道景观要求,分别在0+800和3+150处设置两座低水头景观溢流堰,形成景观水面15~30 m,两岸辅以景观建设,以绿化为主,突出大绿量、乔灌花,四季有景,三季有花。最终实现河道“水清、流畅、岸绿、景美”目标。
The new river is a tributary of the left bank of the Dasha River, which belongs to the Weihe River system in the Haihe River Basin. The source of the new river, Lingquan Lake, is 3.13 km long below the Puji River. No tributaries of this section of the river into the Lingchu Lake for many years under the natural discharge scour formation. The main channel width of the river channel is 5 ~ 10 m wide, the bottom of the river is uneven, the width of both sides of the river is 12 ~ 18 m wide, and the slope of both banks is about 1.50 ~ 2.80 m high. The section of the river is a natural river, has never been treated, the status quo serious siltation, cross-section shrink, lost the ecological function. As the waterway undertakes the task of supplying water to Longyuan Lake Park, it is necessary to comprehensively manage the river source of the new river. The project is planned to be arranged with one intake sluice at the head of the river. The upper section of steep and lower trapezoidal sections of the river regulation section is adopted. Among them, west of Jiaojin Expressway The bottom of the Jiaojin Expressway is 10 m wide at the east bottom and 1: 5 at the bottom of the normal water level, with the ratio of 1: 3 and 1: 2 above the normal water level, 3, the river is down 1/1700. At the same time taking into account the requirements of the river landscape, two low-head landscape overflow weirs were set up at 0 + 800 and 3 + 150 respectively to form a landscape water surface of 15-30 m. Both sides of the river were supplemented with landscape construction with greening as the main highlight, , Joe irrigation, four seasons King, three seasons with flowers. The ultimate realization of the river “clear water, smooth, shore green, King beauty ” goal.