未改初心
刘备的日常
“此间楼宇，竟如栈道般，悬挂陇山之上bqgdj● cc”一路行来，卢氏发现端倪bqgdj● cc
细看立木上端bqgdj● cc皆顶着一根插入山体内的横梁，梁上用木板铺成地面bqgdj● cc楼阁基座，亦直接压在横梁之上bqgdj● cc此梁，才是支撑悬楼之关键bqgdj● cc蓟国匠人称之为“悬臂梁”bqgdj● cc
据说bqgdj● cc悬臂梁，皆选用当地特产“铁衫木”，再经盐渍bqgdj● cc防腐、防虫、防裂，又防火bqgdj● cc工匠将“悬臂梁”打入沿山开凿的石孔时，还会先于横梁截面，竖开一槽，而后夹入一根长木楔bqgdj● cc如此一来，悬臂梁打进岩石后，便会被木楔撑裂，再难拔出bqgdj● cc细究原理，竟和后世膨胀螺栓，一模一样bqgdj● cc
木制悬楼，皆为榫卯结构bqgdj● cc地震时，榫卯来回晃动变形，吸收并释放掉震力bqgdj● cc待震力消失，榫卯连接处，又能自行恢复原状，不会折损bqgdj● cc换而言之bqgdj● cc即便经历多次悬崖地震，陇坂悬楼皆可幸免于难bqgdj● cc除非陇山崩塌bqgdj● cc以刘备的后世经验而言，应当不至于bqgdj● cc
一路行来，见便是许多街道，亦悬空而设bqgdj● cc或依山势，或借楼势，或相互成势，或上下积势bqgdj● cc处处彰显匠心独运bqgdj● cc看的卢氏暗暗称奇bqgdj● cc车行其间，十步一景，百步一街bqgdj● cc重楼叠嶂，鳞萃比栉bqgdj● cc却并不拥挤，亦不显局促bqgdj● cc街宽数丈，数车并行bqgdj● cc山石花木，点缀其间bqgdj● cc招牌如林，彩旗招展bqgdj● cc人文野趣，相得益彰bqgdj● cc还有各式机关器bqgdj● cc直让人目不暇给bqgdj● cc
“如何？”车入关首前，卢氏忽问bqgdj● cc
“初心未改bqgdj● cc”许师答道bqgdj● cc
“此去，刀山火海，生死无怨？”卢氏又问bqgdj● cc
“有劳姐姐陪我走上一遭bqgdj● cc”许师言道：“事若不成，你我姐妹，共赴黄泉bqgdj● cc也好相互作伴bqgdj● cc”
“好，我与你同生共死，荣辱与共bqgdj● cc”卢氏亦下定决心bqgdj● cc当断不断反受其乱bqgdj● cc二人此来行刺，焉能被外事所扰bqg