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