干旱区生态环境知识资源中心(Arid): 盾构下穿敏感性建筑的管棚+水平冻结接收技术

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	盾构下穿敏感性建筑的管棚+水平冻结接收技术
其他题名	Shield receiving technology of pipe-roof grouting and horizontal freezing entrancing beneath sensitive buildings
	刘健鹏 1; 杨平 1; 何文龙 1; 刘玉江 2
来源期刊	铁道科学与工程学报
ISSN	1672-7029
出版年	2017
卷号	14 期号:10 页码:2194-2202
中文摘要	无锡地铁胜利门站~三阳广场站区间右线盾构接收处于软弱地层小半径曲线段,且需下穿商场敏感性建筑,盾构距商场基础下方3.7 m。受地面加固条件限制,盾构接收采用水平冻结+管棚注浆加固方式。本文给出杯底厚度3 m,杯壁长度11.4 m的杯型水平冻结加固方案,并对冻结温度场进行实测与分析,获得了冻结壁发展变化规律;提出端头管棚注浆加固工艺与参数,盾构掘进至小半径曲线段与切削杯底冻结土体的具体推进参数,解冻时进行融沉跟踪注浆的具体参数,并对建筑物的变形进行实时监测,实测结果表明,水平冻结+管棚注浆加固效果良好。绿洲商场主楼最大沉降量仅2.6 mm,证明采用水平冻结加管棚注浆工艺合理可行,为今后类似工程提供了可行技术。
英文摘要	Wuxi Underground Shenglimen Station~Sanyang Square Station interval right line shield locates in small radius curve receiving section of soft formation, and it is required to thread into the shopping mall sensitive buildings. The shield is 3.7 m from the shopping mall foundation bottom. Under the condition of ground reinforcement, the shield receiving is adopted by horizontal freezing and grouting reinforcement. In this paper, the cup type horizontal freezing reinforcement scheme of 3 m in thickness and 11.4 m in length was revealed, the freezing temperature field was measured and analyzed, and the change law of the development of the frozen wall was obtained. The technology and parameters of grouting reinforcement for end pipe roof were put forward, together with the driving parameters of the shield tunneling to the small radius curved line segment and the frozen soil of the cutting cup bottom. The concrete parameters of the grouting were carried out in the thaw settlement, and the deformation of the building was monitored in real time. The measured results show that the horizontal freezing and grouting reinforcement effect is good. The maximum settlement of the main building of the oasis shopping mall is only 2.6 mm. It is proved that the horizontal freezing and grouting technology is reasonable and feasible, which provides a feasible technology for the similar projects in the future.
中文关键词	水平冻结 ; 管棚注浆 ; 温度场 ; 沉降控制 ; 盾构接收
英文关键词	horizontal freezing pipe-roof grouting temperature field settlement control shield receiving
语种	中文
国家	中国
收录类别	CSCD
WOS类目	CONSTRUCTION BUILDING TECHNOLOGY
WOS研究方向	Construction & Building Technology
CSCD记录号	CSCD:6121265
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236751
作者单位	1.南京林业大学土木工程学院, 南京, 江苏 210037, 中国; 2.中铁十四局集团隧道工程有限公司, 济南, 山东 250000, 中国
推荐引用方式 GB/T 7714	刘健鹏,杨平,何文龙,等. 盾构下穿敏感性建筑的管棚+水平冻结接收技术[J],2017,14(10):2194-2202.
APA	刘健鹏,杨平,何文龙,&刘玉江.(2017).盾构下穿敏感性建筑的管棚+水平冻结接收技术.铁道科学与工程学报,14(10),2194-2202.
MLA	刘健鹏,et al."盾构下穿敏感性建筑的管棚+水平冻结接收技术".铁道科学与工程学报 14.10(2017):2194-2202.