探矿工程-岩土钻掘工程
探礦工程-巖土鑽掘工程
탐광공정-암토찬굴공정
EXPLORATION ENGINEERING (DRILLING & TUNNELING)
2013年
4期
51-54
,共4页
王文明%丁力生%梁旭黎%王自强
王文明%丁力生%樑旭黎%王自彊
왕문명%정력생%량욱려%왕자강
深基坑%地下水%钻孔灌注桩%孔壁坍塌%混凝土缺陷
深基坑%地下水%鑽孔灌註樁%孔壁坍塌%混凝土缺陷
심기갱%지하수%찬공관주장%공벽담탑%혼응토결함
deep foundation pit%groundwater%bored grouting pile%hole wall collapse%concrete defect
在城市高层及超高层建筑中,先开挖基坑后施工钻孔灌注桩的方案已被广泛应用.当原地下水位高于基坑开挖面或桩长范围内有承压水层时,就会对钻孔灌注桩施工产生不利的影响甚至造成不良后果.在分析深基坑地下水对钻孔灌注桩的不利影响的基础上,提出了相应的预防及解决措施,总结得出的经验可供类似工程参考.
在城市高層及超高層建築中,先開挖基坑後施工鑽孔灌註樁的方案已被廣汎應用.噹原地下水位高于基坑開挖麵或樁長範圍內有承壓水層時,就會對鑽孔灌註樁施工產生不利的影響甚至造成不良後果.在分析深基坑地下水對鑽孔灌註樁的不利影響的基礎上,提齣瞭相應的預防及解決措施,總結得齣的經驗可供類似工程參攷.
재성시고층급초고층건축중,선개알기갱후시공찬공관주장적방안이피엄범응용.당원지하수위고우기갱개알면혹장장범위내유승압수층시,취회대찬공관주장시공산생불리적영향심지조성불량후과.재분석심기갱지하수대찬공관주장적불리영향적기출상,제출료상응적예방급해결조시,총결득출적경험가공유사공정삼고.
@@@@In the construction of high-rise and super high-rise buildings in urban, the bored grouting pile construction scheme of“excavation before construction” is widely used.When the groundwater level is higher than the excavation face or there is confined water in the effective length of the pile, it would even cause harmful consequence to the bored grouting pile construction.Based on the analysis on the unfavorable influence of the groundwater to the bored grouting pile, the pa-per puts forward the corresponding prevention and treatment measures, the summarized experience could be available for reference to the similar engineering.
