路基地表排水可采用边沟、截水沟、排水沟、跃水井和急流槽，各类地段排水沟

路基地表排水可采用边沟、截水沟、排水沟、跃水井和急流槽，各类地段排水沟应高出设计水位0~2m以上。
边沟横断面采用直角梯形，外侧边坡坡度为1:1，深度0.5m，边沟纵坡宜与路线纵坡一致并不宜小于0.3%，边沟采用浆砌片石，边沟长度不宜超过500m。排水沟采用浆砌片石，横断面采用梯形，内坡度采用1:1，深度及宽度不宜小于0.5m，沟底纵坡不宜小于0.5%。排水沟过农田段采用浆砌片石L型排水沟，，沟深和底宽均为0.5m，并且过农田段均设路田分界墙，不是过农田段的排水沟采用浆砌片石排水沟，沟深和底宽均为0.5m，内坡度为1:1。

結果 (英文) 1:

Subgrade surface drainage ditches, swales, ditches, jump chute and wells, drains shall be of a lot more than design water level 0~2m.Side ditch cross section of rectangular trapezoid, lateral slope of 1:1, depth: 0.5M, ditches should be consistent with the road longitudinal slope longitudinal slope and not less than 0.3%, ditches the masonry stones, ditches the length should not exceed 500m. Drain using masonry rubble, cross section of trapezoid, slope using 1:1, depth and width of not less than 0.5M, bottom longitudinal gradient of not less than 0.5%. Drain farmland section of masonry rubble l-shaped gutters,, ditch deep and wide at the end of the 0.5M, fields, and farmland located road boundary wall, not the field drains using masonry stone drains, trench depth and bottom width of 0.5M, in the slope of 1:1.

結果 (英文) 2:

Subgrade surface drainage ditches can be used, drainage ditches, drains, wells and rapids hop grooves, lots of all kinds of drains should be higher than the design level 0 ~ 2m above.
Ditch right angle trapezoidal cross-section, the outer slope gradient of 1: 1, the depth of 0.5m, gutter longitudinal slope should be consistent with the line of longitudinal and should not be less than 0.3%, the use of mortar rubble gutters, gutter length should not exceed 500m. Gutter using mortar rubble, trapezoidal cross-section, the inner slope of 1: 1, the depth and width of not less than 0.5m, ditch longitudinal slope should not be less than 0.5%. Gutters over farmland section with mortar rubble L-type gutters ,, groove depth and bottom width are 0.5m, and road fields are located over farmland segment boundary wall, not over farmland segment gutter using mortar rubble drains, groove depth and bottom width are 0.5m, inner slope of 1: 1.

結果 (英文) 3:

Roadbed surface drainage can be used to ditch, ditch, drainage ditch, jump wells and rapids, all types of drainage ditch should be higher than the design level of 0~2m.The cross section of the side ditch right angled trapezoid, lateral slope gradient of 1:1, depth 0.5m, longitudinal slope and ditch should route slope consistent and not less than 0.3%, the stone ditch, ditch length should not be more than 500m. The mortar rubble drains, trapezoidal cross-sectional, gradient by 1:1, depth and width of not less than 0.5m, the longitudinal slope of the channel bottom should not be less than 0.5%. The drainage ditch across the farmland with mortar rubble L type drainage ditch, ditch depth and bottom width is 0.5m, and some farmland are located Lu Tian divided the wall and not part of the farmland drainage ditch stone drainage ditch, ditch depth and bottom width is 0.5m, the gradient in the 1:1.