<kbd id='TKVjAqkRKEt8gut'></kbd><address id='TKVjAqkRKEt8gut'><style id='TKVjAqkRKEt8gut'></style></address><button id='TKVjAqkRKEt8gut'></button>

              <kbd id='TKVjAqkRKEt8gut'></kbd><address id='TKVjAqkRKEt8gut'><style id='TKVjAqkRKEt8gut'></style></address><button id='TKVjAqkRKEt8gut'></button>

                      <kbd id='TKVjAqkRKEt8gut'></kbd><address id='TKVjAqkRKEt8gut'><style id='TKVjAqkRKEt8gut'></style></address><button id='TKVjAqkRKEt8gut'></button>

                              <kbd id='TKVjAqkRKEt8gut'></kbd><address id='TKVjAqkRKEt8gut'><style id='TKVjAqkRKEt8gut'></style></address><button id='TKVjAqkRKEt8gut'></button>

                                      <kbd id='TKVjAqkRKEt8gut'></kbd><address id='TKVjAqkRKEt8gut'><style id='TKVjAqkRKEt8gut'></style></address><button id='TKVjAqkRKEt8gut'></button>

                                              <kbd id='TKVjAqkRKEt8gut'></kbd><address id='TKVjAqkRKEt8gut'><style id='TKVjAqkRKEt8gut'></style></address><button id='TKVjAqkRKEt8gut'></button>

                                                      <kbd id='TKVjAqkRKEt8gut'></kbd><address id='TKVjAqkRKEt8gut'><style id='TKVjAqkRKEt8gut'></style></address><button id='TKVjAqkRKEt8gut'></button>

                                                              <kbd id='TKVjAqkRKEt8gut'></kbd><address id='TKVjAqkRKEt8gut'><style id='TKVjAqkRKEt8gut'></style></address><button id='TKVjAqkRKEt8gut'></button>

                                                                      <kbd id='TKVjAqkRKEt8gut'></kbd><address id='TKVjAqkRKEt8gut'><style id='TKVjAqkRKEt8gut'></style></address><button id='TKVjAqkRKEt8gut'></button>

                                                                              <kbd id='TKVjAqkRKEt8gut'></kbd><address id='TKVjAqkRKEt8gut'><style id='TKVjAqkRKEt8gut'></style></address><button id='TKVjAqkRKEt8gut'></button>

                                                                                  尊尚娱乐官网sp36888_二建水利常识点:堤顶(或戗台顶)阶梯体系计划要求
                                                                                  作者:尊尚娱乐官网sp36888 发布日期:2018-06-25 12:14   浏览次数:

                                                                                  导语:建树工程教诲网是海内工程类长途教诲基地,依附其多年向导履历,礼聘海内测验向导专家,依托专业的解说处事团队,回收高清课件、移动教室等先辈解说方法,强力推出二级制作师等网上向导课程,,点击相识课程详情>>>

                                                                                  堤顶(或戗台顶)阶梯体系计划,应满意以下的原则和要求:

                                                                                  〔1)堤顶布局除满意堤防工程自身断面计划的要求外,还应满意防汛抢险运输的必要。

                                                                                  〔2)堤顶计划宽度小于6m时,应沿堤身每隔恰当间隔配置一错车道或下堤坡道。错车道或下堤坡道的间距,应按双向行车的视距要求确定。错车道段的堤顶宽度应不小于6.5m,有用错车长度应大于20m。

                                                                                  出格险峻的堤段,可在堤顶路面一侧或两侧路肩制作护拦石或路缘石。

                                                                                  (3)堤顶路面布局,宜回收排水机能好、粗拙度大、易于维涵养护的砂石料铺筑。

                                                                                  (4)某些重要堤段,如需团结成长地区性公用交通奇迹,颠末充实论证,可修筑混凝土或其他永世性路面布局。

                                                                                  堤身断面未到达计划尺度或堤身填土沉降尚未稳按时,堤顶公路不应承修筑混凝土或其他永世性路面布局。

                                                                                  (5)通向沿堤各打点点的公路体系,应选择恰当园地建筑停车场和回车场(或下堤坡道)。

                                                                                  ? 下一篇:下一篇:北京二建钻石面授班