2023·4·Building Construction 642
狭小空间下穿越地下连续墙的接驳结构施工技术
梁嘉韵 1 叶家成 1 温喜廉 1 袁继雄 2 程 晔 2
1. 广州珠江建设发展有限公司 广东 广州 510075;2. 仲恺农业工程学院城乡建设学院 广东 广州 510225
摘要: 以紧邻地铁站的综合商业楼接驳结构项目为例,深入研究狭小空间下穿越既有地下连续墙新建接驳结构施工所
面临的技术难题,针对狭小空间的深基坑支护、地下连续墙拆除和运输以及接驳结构防水措施等关键问题,提出“微
型灌注钢管桩支护、注浆管止水帷幕、型钢内支撑”组合支护体系、“低位导运、中位转运、高位吊运”的地下连续
墙切割块运输措施以及由多种防水措施形成的立体防水体系等系列施工技术,实现在狭小空间下穿越地下连续墙接驳
结构的安全高效施工。
关键词: 狭小空间;接驳结构;狭小深基坑;地下连续墙拆除;立体防水体系
中图分类号:
T U 755 文献标志码: A 文章编号: 1004- 1001(2023)04- 0642-0 4 DOI: 1 0.1 4144/j. c nki. jz sg .2 023.0 4.0 07
Construction Technology of Connection Structure Crossing Underground
Diaphragm Wall in Narrow Space
LIANG Jiayun 1 YE Jiacheng 1 WEN Xilian 1 YUAN Jixiong 2 CHENG Ye 2
1. Guangzhou Pearl River Construction Development Co., Ltd., Guangzhou 510075, Guangdong, China;
2. College of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China
Abstract: T
akin g th e c onnectio n s tr u ctu re p ro je ct o f a c om pre hensiv e c om merc ia l b uild in g c lo se to th e s u b w ay s ta tio n
a s a n e xa m ple , th e te chnic al p ro b le m s fa ced b y th e c onstr u ctio n o f th e n ew c onnectio n s tr u ctu re c ro ssin g th e e xis tin g
u nd erg ro und d ia p hra g m w all in a n arro w s p ace a re s tu d ie d in te nsiv e ly . A im in g a t th e k e y p ro b le m s s u ch a s th e d eep
f o und atio n p it s u p port in a n arro w s p ace, th e
d em olit io n a nd tr a nsp orta tio n o f th e u nd erg ro und d ia p hra g m w all, a nd th e
w ate rp ro of m easu re s o f th e c onnectio n s tr u ctu re , a s e rie s o f c onstr u ctio n te chnolo g ie s a re p ro p ose d , s u ch a s th e c om bin ed
s u p port s yste m o f "m ic ro -p oure d s te el p ip e p ile s u p p ort, g ro utin g p ip e w ate rp ro of c urta in , a nd s e ctio n s te el in te rn al
s u p port", th e tr a nsp orta tio n m easu re s o f th e c ut b lo cks o f th e d ia p hra g m w all o f "lo w l
e ve l g uid in g , m id dle le ve l tr a nsfe rrin g
a nd h ig h le ve l lif tin g " a nd th e th re e-d im ensio nal w ate rp ro of s yste m fo rm ed b y v a rio us w ate rp ro of m easu re s. T he s a fe a nd
e ffic ie nt c onstr u ctio n o f th e c onnectio n s tr u ctu re o f th e d ia p hra g m w all in th e n arro w s p ace is a chie ve d .
Keywords:
n arro w s p ace; c onnectio n s tr u ctu re ; n arro w a nd d eep fo und atio n p it ; d em olit io n o f u nd erg ro und d ia p hra g m
wall; th re e-d im ensio
狭小空间下穿越地下连续墙的接驳结构施工技术(论文).pdf