本文選題：巖溶地層　切入點(diǎn)：深基坑　出處：《巖土力學(xué)》2015年S1期 　論文類型：期刊論文

【摘要】：以廣州地鐵9號(hào)線在巖溶地區(qū)施工深基坑為例,研究巖溶地層基坑施工對(duì)周圍環(huán)境的影響。該車站基坑長259.7 m,寬18.7 m,深15.8 m。基坑深度范圍內(nèi)包括溶洞和砂層,溶洞地層富水、穩(wěn)定性差、物理力學(xué)性質(zhì)差,砂層厚0~15 m,有較大的滲透性,基坑施工過程中對(duì)地下連續(xù)墻的側(cè)向位移和地面沉降進(jìn)行了監(jiān)測(cè)。監(jiān)測(cè)結(jié)果表明,基坑開挖結(jié)束時(shí)地下連續(xù)墻的最大側(cè)向位移為12 mm,地面沉降的最大值為10.1 mm,基坑開挖過程中對(duì)周圍環(huán)境的影響很小。研究成果可為今后類似工程施工提供經(jīng)驗(yàn)借鑒。
[Abstract]:Taking Guangzhou Metro Line 9 as an example, the influence of the construction of deep foundation pit in karst strata on the surrounding environment is studied. The pit of this station is 259.7 m long, 18.7 m wide and 15.8 m deep. The depth range of the foundation pit includes karst cave and sand layer, and the karst formation is rich in water. The stability is poor, the physical and mechanical properties are poor, the sand layer thickness is 0 ~ 15 m, and the permeability is great. The lateral displacement and ground subsidence of underground continuous wall are monitored during the foundation pit construction. The monitoring results show that, At the end of excavation, the maximum lateral displacement of underground continuous wall is 12 mm and the maximum of ground subsidence is 10.1 mm. The influence of excavation on the surrounding environment is very small. The research results can provide experience and reference for the construction of similar projects in the future.
【作者單位】： 上海交通大學(xué)土木工程系;上海交通大學(xué)海洋工程國家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973計(jì)劃)(No.2015CB057806)
【分類號(hào)】：TU753

【共引文獻(xiàn)】

相關(guān)期刊論文 前10條

1 黃鐘暉;馬少坤;周小兵;姚曉;歐孝奪;;隧道開挖對(duì)臨近不同相對(duì)剛度比樁基影響研究[J];廣西大學(xué)學(xué)報(bào)(自然科學(xué)版);2012年01期

2 劉輝;彭川;陳永貴;饒中;;公路隧道穿越特大溶洞的施工監(jiān)測(cè)研究[J];工業(yè)建筑;2010年08期

3 張浩文;方忠強(qiáng);劉偉;;復(fù)雜條件下單層地鐵車站深基坑工程設(shè)計(jì)[J];水利與建筑工程學(xué)報(bào);2013年05期

4 高磊;王福彬;余湘娟;;錨桿參數(shù)對(duì)基坑坑底回彈和地連墻變形的影響[J];水利與建筑工程學(xué)報(bào);2013年06期

5 何t，

本文編號(hào)：1615006