建(jian)筑鋼波紋管時(shi),可(ke)依(yi)據需(xu)要隨意組裝(zhuang)成任何長度(du),必要時(shi),管(guan)(guan)節還可(ke)撤除,遷往別處建筑,在缺乏(fa)砂(sha)石材料區(qu)域(yu)(yu)或地基承(cheng)載力較低(di)的區(qu)域(yu)(yu),鋼(gang)波紋管(guan)(guan)為明顯。鋼(gang)波紋管(guan)(guan)不能直接(jie)置于(yu)巖石或混凝土基床上,因過于(yu)剛性的支承(cheng),不但(dan)會下降管(guan)(guan)壁自身(shen)所具有(you)的突(tu)出(chu)柔性,而且還會減小(xiao)涵管(guan)(guan)的承(cheng)載才干。
朝陽鋼波紋管兩側回填土的流程是怎樣的?
由其適合高(gao)寒凍土(tu)區域(yu),軟土(tu)路基(ji)地(di)帶和深填土(tu)地(di)帶,可節省大量資金(jin),具有明(ming)顯的經濟效益。鋼波(bo)紋管是與鋼筋(jin)混凝土(tu)管涵(han)相(xiang)比,具有管節薄,重量輕,便于運送存放,施工(gong)(gong)工(gong)(gong)藝(yi)簡略(lve),組(zu)裝快速,工(gong)(gong)期短等長處。
所以對巖(yan)石(shi)(shi)地基(ji)(ji)(ji)應挖掉一部分軟(ruan)巖(yan),換填(tian)一層土,并(bing)認(ren)真夯實。開挖軟(ruan)巖(yan)溝槽,不能運用烈性炸藥和放深孔炮,以防止(zhi)將過多的外層炸松散(san)。巖(yan)石(shi)(shi)風(feng)化層地基(ji)(ji)(ji)不能作為基(ji)(ji)(ji)礎(chu),需換填(tian)上(shang)3D寬度的填(tian)土。基(ji)(ji)(ji)礎(chu)發落(luo)懲治,可(ke)回填(tian)沙礫或砌筑片石(shi)(shi)砼(tong)。
Therefore, for the rock foundation, some soft rock shall be excavated, a layer of soil shall be replaced, and it shall be tamped carefully. When excavating soft rock trenches, high explosives and deep hole guns shall not be used to prevent too much outer layer from being blown loose. The foundation of rock weathered layer cannot be used as the foundation, and it needs to be replaced with fill with 3D width. The foundation can be backfilled with gravel or masonry rubble concrete.
朝陽鋼波紋管兩側回填土的流程是怎樣的?
對基(ji)(ji)底進行(xing)平整,換填30-50cm厚的(de)沙礫材料(liao),緊疏密程度抵達(da)90以上,選拔合宜的(de)流水(shui)縱坡3支(zhi)配。定出每道涵洞(dong)(dong)的(de)中線和邊線。運用(yong)壽命長,拼(pin)裝鋼波(bo)紋(wen)管運用(yong)壽命可達(da)100多(duo)年(nian).從(cong)材料(liao)與結構和功用(yong)的(de)本質(zhi)聯系(xi)上剖析,采用(yong)柔性強度的(de)鋼波(bo)紋(wen)管洞(dong)(dong),不(bu)只具有適應地(di)基(ji)(ji)與基(ji)(ji)礎(chu)變形的(de)才干,能夠處理(li)因(yin)地(di)基(ji)(ji)基(ji)(ji)礎(chu)不(bu)均勻(yun)沉降招(zhao)致的(de)涵洞(dong)(dong)破壞成果。
而且鋼波紋管洞因為軸向波紋的存在使其具有受力特征,軸向和徑向一起分布因荷載惹起的應力應變,能夠更大水平上分散荷載的應力會集,更好地發揚鋼結構的下風。特別在高寒凍土、軟土、縮短土、濕陷性黃土等地帶,具有清楚的經濟效益。//hanihanbj.com/
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