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排水系统布置要求
排水系统布置要求
Layout requirements of drainage system
排水系统的布置应全面规划，尽量做到：
The layout of drainage system should be comprehensively planned and done as far as possible:
①排水沟道要处于控制面积的最低处，以求尽量自流排水。
Drainage ditch should be at the lowest point of control area, so as to make the drainage as far as possible.
②根据地形应将排水地区划分为高、中、低等片，做到高水高排，低水低排,自排为主,抽排为辅。
2. According to the topography, drainage areas should be divided into high, medium and low sectors, so that high water and high platoon, low water and low platoon, self drainage and auxiliary drainage are the main drainage areas.
③排水干沟的出口应选择在容泄区水位较低和河床比较稳定的地方。
3. The outlet of drainage drains should be selected in the areas where the water level is low and the river bed is relatively stable.
④下级排水沟道的布置要为上级沟道排水创造良好的条件，干沟要尽可能布置成直线。此外，排水沟布置要避开土质差的地带，以节省工程费用并使排水安全及时。
4. The layout of the lower drainage channel should create favorable conditions for drainage at the upper level, and the trench should be arranged as straight as possible. In addition, the drainage ditch layout should avoid the poor soil zone, so as to save the project cost and make the drainage safe and timely.
⑤在有外水入侵的排水区，应布置截流沟或撇洪沟，使外来的地面水和地下水直接引入排水干沟或容泄区。
(5) in the drainage area where there is external water invasion, a trench or flood ditch should be arranged so that the external surface water and groundwater can be directly introduced into the drained trench or discharge area.
Layout requirements of drainage system
排水系统的布置应全面规划，尽量做到：
The layout of drainage system should be comprehensively planned and done as far as possible:
①排水沟道要处于控制面积的最低处，以求尽量自流排水。
Drainage ditch should be at the lowest point of control area, so as to make the drainage as far as possible.
②根据地形应将排水地区划分为高、中、低等片，做到高水高排，低水低排,自排为主,抽排为辅。
2. According to the topography, drainage areas should be divided into high, medium and low sectors, so that high water and high platoon, low water and low platoon, self drainage and auxiliary drainage are the main drainage areas.
③排水干沟的出口应选择在容泄区水位较低和河床比较稳定的地方。
3. The outlet of drainage drains should be selected in the areas where the water level is low and the river bed is relatively stable.
④下级排水沟道的布置要为上级沟道排水创造良好的条件，干沟要尽可能布置成直线。此外，排水沟布置要避开土质差的地带，以节省工程费用并使排水安全及时。
4. The layout of the lower drainage channel should create favorable conditions for drainage at the upper level, and the trench should be arranged as straight as possible. In addition, the drainage ditch layout should avoid the poor soil zone, so as to save the project cost and make the drainage safe and timely.
⑤在有外水入侵的排水区，应布置截流沟或撇洪沟，使外来的地面水和地下水直接引入排水干沟或容泄区。
(5) in the drainage area where there is external water invasion, a trench or flood ditch should be arranged so that the external surface water and groundwater can be directly introduced into the drained trench or discharge area.
