In allusion to test roadway in the zhang - luo second class highway and lin - chang freeway , through hydrologic analysis , hydraulic calculation and with the analysis of highway structure , the blue print of setting drainage system , construction technique and back - check experiment are presented 針對張羅二級公路試驗段和臨常一級公路試驗段,進行了水文分析和水力計算,并結合路面結構分析,提出了排水系統(tǒng)的布設方案、施工技術方案和試驗檢測方案。