格式:pdf
大?。?span class="single-tag-height">162KB
頁(yè)數(shù): 2頁(yè)
簡(jiǎn)述了福建省南平市嶺根隧道淺埋富水軟弱圍巖段的超前預(yù)支護(hù)施工工法及各施工工序。
格式:pdf
大?。?span class="single-tag-height">14KB
頁(yè)數(shù): 9頁(yè)
洞身長(zhǎng)管棚施工工藝新技術(shù) : A new technique for long pipe roofs applied in tunnel barrel instead of the oldstyled technology when it gets through shallowly buried , biased and weak formations was introduced , which means that the aperture and pipe roof will be formed and completed synchronously by using 50 m Φ121 steel tubes to keep in step closely with the drilling bit without cleaning out the hole and
洞身管棚知識(shí)來(lái)自于造價(jià)通云知平臺(tái)上百萬(wàn)用戶的經(jīng)驗(yàn)與心得交流。 注冊(cè)登錄 造價(jià)通即可以了解到相關(guān)洞身管棚最新的精華知識(shí)、熱門(mén)知識(shí)、相關(guān)問(wèn)答、行業(yè)資訊及精品資料下載。同時(shí),造價(jià)通還為您提供材價(jià)查詢、測(cè)算、詢價(jià)、云造價(jià)等建設(shè)行業(yè)領(lǐng)域優(yōu)質(zhì)服務(wù)。手機(jī)版訪問(wèn):洞身管棚