廣州地區(qū)頂管施工技術(shù)可行性分析(存儲(chǔ)版)
【正文】 n Guanfeng，Engineering School，china university of Geosciences，GuangZhou Municipal Engineering GrouPABSTRACT：The analysis has been made of the technical characteristic and developing trend of pipejacking andthe engineering geological conditions and the principles of PiPe lines distribution here．On the above base，thepipeJacking construction must bedeveloped quickly and widely in order to protect the envirronment at most and spoil it at least in front of pipe lines construction in great scale．In addition，the Probems which are worthy ofbeing Paid attention to are proposed in the paper．Keywords：Pipejacking，pipe line net，construction1．前言 廣州地區(qū)地質(zhì)特點(diǎn)廣州地區(qū)頂管施工技術(shù)可行性分析安關(guān)峰①另外，本文還提出了頂管施工中值得注意的問題。非開挖技術(shù)在不穩(wěn)定及飽和土層中以最小的破壞和最大的保護(hù)環(huán)境等方面解決了城市施工中的難題，并在應(yīng)付最惡劣的地下土壤條件中有豐富的經(jīng)驗(yàn)，任何地方都能提供最經(jīng)濟(jì)、準(zhǔn)確、支全、快速而可靠的解決問題的方法。更為重要的是頂管施工作為一種工藝，它不僅僅鋪設(shè)管線，它在管棚施工方面也具有優(yōu)勢(shì)。但是在采用該施工技術(shù)進(jìn)行施工時(shí)，首要做的事情是深刻了解廣州土質(zhì)特點(diǎn)。4—18m三角洲相沉積土層為淤泥、淤泥質(zhì)粘土、下部含砂產(chǎn)腐木河流相沉積土層為白色黏土，高嶺、粉質(zhì)粘土，含豐富腐木泥炭沼澤相沉積土層為泥炭層，有機(jī)質(zhì)粘土層2—16m 河流相沉積土層為粉砂，細(xì)砂，中砂，粗砂，礫砂，局部底部為礫石和角礫石堆積洪積相沉積土層為礫石和角礫石，含礫黏土，
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