【正文】 ..............................................................................41 上更新統(tǒng)（ alplQ3）： .....................................................................................42 全 新統(tǒng)（ alQ 4） ..............................................................................................42 地質(zhì)構(gòu)造與地震 .............................................................................................42 地質(zhì)構(gòu)造 ..........................................................................................................42 地震 ..................................................................................................................43 水文地質(zhì)條件 .................................................................................................43 地下水類(lèi)型 ......................................................................................................44 各土層及卵石層的滲透性 ..............................................................................44 水化學(xué)特征 ......................................................................................................44 河道工程地質(zhì)條件及評(píng)價(jià) ................................................................................................................................. 47 地質(zhì)結(jié)構(gòu) .........................................................................................................47 右岸 ..................................................................................................................47 河床 ..................................................................................................................47 左岸 ..................................................................................................................47 土體的物理力學(xué)性質(zhì) .....................................................................................47 主要工程地質(zhì)問(wèn)題及評(píng)價(jià) ................................................................................................................................. 53 基坑臨時(shí)邊坡穩(wěn)定問(wèn)題 .................................................................................53 施工排水問(wèn)題 .................................................................................................53 黃土狀土的濕陷問(wèn)題 .....................................................................................53 建筑物工程地質(zhì)條件及評(píng)價(jià) ............................................................................................................................. 53 口 頭排水溝渡槽 .............................................................................................53 江山橋 .............................................................................................................53 薛灣村橋 .........................................................................................................54 iv 秦窯村橋 .........................................................................................................55 三皇莊橋 .........................................................................................................56 天然建筑材料 ....................................................................................................................................................... 56 土料 .................................................................................................................57 砂礫料 .............................................................................................................58 石料 .................................................................................................................62 結(jié)語(yǔ) ......................................................................................................................................................................... 64 4 工程任務(wù)與規(guī)模 ............................................................................................................................................................ 64 工程現(xiàn)狀及存在的問(wèn)題 ...................................................................................................................................... 66 工程現(xiàn)狀 .........................................................................................................66 存在問(wèn)題 .........................................................................................................72 工程任務(wù) ................................................................................................................................................................ 72 工程規(guī)模 ................................................................................................................................................................ 73 治理范圍 .........................................................................................................73 治理目標(biāo) .........................................................................................................73 5 工程設(shè)計(jì) .......................................................................................................................................................................... 74 工程等別 ................................................................................................................................................................ 74 設(shè)計(jì)依據(jù) ................................................................................................................................................................ 74 法律法規(guī) .........................................................................................................74 主要規(guī)范規(guī)程 .................................................................................................75 有關(guān)文件和資料 .............................................................................................75 設(shè)計(jì)原則 ................................................................................................................................................................ 75 工程設(shè)計(jì) ........................................................................................