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排水沟的布设原则
1 排水沟一般布设在坡面截水沟的两端或较低一端，用以排除截水沟不能容纳的地表径流。排水沟的终端连接蓄水池或天然排水道 。
1. Drainage ditches are generally laid at the two or lower ends of slope interception ditches to exclude surface runoff that cannot be accommodated by the interception ditches. The terminal of the drainage ditch is connected to a reservoir or natural drainage channel.
2 排水沟在坡面上的比降，根据其排水去处（蓄水池或天然排水道）的位置而定，当排水出口的位置在坡脚时，排水沟大致与坡面等高线正交布设；当排水去处的位置在坡面时，排水沟可基本沿等高线或与等高线斜交布设。各种布设都必须 作好防冲措施（铺草皮或石方衬砌）。
2. The gradient of drainage ditches on slopes depends on the location of drainage outlets (reservoirs or natural drainage channels). When the outlet of drainage is at the foot of the slope, the drainage ditches are roughly orthogonal to the contour of the slope; when the drainage outlet is located on the slope, the drainage ditches can be basically laid along the contour or obliquely intersected with the contour. All kinds of layouts must take good anti-scouring measures (laying turf or stone lining).
3梯田区两端的排水沟，一般与坡面等高线正交布设，大致与梯田两端的道路同向。一般土质排水沟应分段设置跌水。排水沟纵断面可采取与梯田区大断面一致，以每台田面宽为一水平段，以每台田坎高为一跌水，在跌水处做好防冲措施（铺草皮或石方衬砌）
3. The drainage ditches at both ends of terraced fields are generally arranged orthogonally with the contours on the slopes, and are roughly in the same direction as the roads at both ends of terraced wufangbu.07858.netxinban.07858.netlalijii.07858.netshiyanji.07858.netliuhuaji.07858.net liuhuajii.07858.netfields. Generally, the soil drainage ditch should be divided into several sections. The vertical section of drainage ditch can be consistent with the large section of terrace area, with the width of each field surface as a horizontal section, and the height of each field canal as a fall. The anti-scouring measures should be taken at the drop place (laying turf or stone lining).
1. Drainage ditches are generally laid at the two or lower ends of slope interception ditches to exclude surface runoff that cannot be accommodated by the interception ditches. The terminal of the drainage ditch is connected to a reservoir or natural drainage channel.
2 排水沟在坡面上的比降，根据其排水去处（蓄水池或天然排水道）的位置而定，当排水出口的位置在坡脚时，排水沟大致与坡面等高线正交布设；当排水去处的位置在坡面时，排水沟可基本沿等高线或与等高线斜交布设。各种布设都必须 作好防冲措施（铺草皮或石方衬砌）。
2. The gradient of drainage ditches on slopes depends on the location of drainage outlets (reservoirs or natural drainage channels). When the outlet of drainage is at the foot of the slope, the drainage ditches are roughly orthogonal to the contour of the slope; when the drainage outlet is located on the slope, the drainage ditches can be basically laid along the contour or obliquely intersected with the contour. All kinds of layouts must take good anti-scouring measures (laying turf or stone lining).
3梯田区两端的排水沟，一般与坡面等高线正交布设，大致与梯田两端的道路同向。一般土质排水沟应分段设置跌水。排水沟纵断面可采取与梯田区大断面一致，以每台田面宽为一水平段，以每台田坎高为一跌水，在跌水处做好防冲措施（铺草皮或石方衬砌）
3. The drainage ditches at both ends of terraced fields are generally arranged orthogonally with the contours on the slopes, and are roughly in the same direction as the roads at both ends of terraced wufangbu.07858.netxinban.07858.netlalijii.07858.netshiyanji.07858.netliuhuaji.07858.net liuhuajii.07858.netfields. Generally, the soil drainage ditch should be divided into several sections. The vertical section of drainage ditch can be consistent with the large section of terrace area, with the width of each field surface as a horizontal section, and the height of each field canal as a fall. The anti-scouring measures should be taken at the drop place (laying turf or stone lining).
