城市深部近接全过程变形控制设计方法

Abstract
Figure/Table
References
Related Citation (1)

Download: PDF (1741 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Research purposes: The development and utilization of urban deep (50 m deep) underground space faces the problem of multi-chamber close construction, and the stability and deformation control requirements are more stringent than those of conventional underground space. There is still no systematic design method to guide engineering practice. Therefore, a whole-process deformation control design method for the deep urban near-grounded space is proposed.
Research conclusions: (1)Based on the research results of the deformation mechanism of geography, existing chamber and new chamber by close excavation of multiple chambers, the principle of deformation control of proximity construction is proposed, the design process of deformation control of the whole process of close connection of urban deep underground space is established, the control standards of construction deformation (including rock and soil deformation) and structural deformation of chamber are given, and the risk zoning standard of proximity considering the type of close connection, the grade of surrounding rock and the spacing of close connection is proposed.(2)Starting from the aspects of construction method, geotechnical deformation control, deformation control of existing structures, stability and deformation control of new structures, the deformation control design suggestions under typical strata and risk zoning conditions are proposed for typical close connection types.(3)The design method is applied to the typical deep proximity project of Fuxie section of Chongqing Metro Line 18, and the results show that the design scheme given according to this method can effectively control the deformation of the deep proximity project, ensure the stability of the new chamber. The deformation of the existing chamber is within the range specified by the standard, which can be used to guide the design of the close connection deformation of the deep underground space in the city, and has the value of promotion and application.

Key words： urban deep space proximity construction approaching risk zoning deformation control standard deformation control technology deformation control design

Received: 11 October 2023

PACS:

O319.56

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	HUANG Zhenke
	DONG Jun
	ZHU Yong
	YU Qunding
	XIE Jun

Cite this article:

HUANG Zhenke,DONG Jun,ZHU Yong, et al. Design Method of Whole-process Deformation Control for Approaching Construction of Urban Deep Space[J]. Journal of Railway Engineering Society, 2023, 40(12): 6-14.

URL:

https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2023/V40/I12/6

[1]	龚晓南,杨仲轩.岩土工程变形控制设计理论与实践[M].北京: 中国建筑工业出版社,2021.Gong Xiaonan, Yang Zhongxuan. Theory and Practice of Deformation Control Design in Geotechnical Engineering[M]. Beijing: China Architecture & Building Press,2021.
[2]	陈湘生,徐志豪,包小华,等.中国隧道建设面临的若干挑战与技术突破[J].中国公路学报,2020(12):1-14.Chen Xiangsheng, Xu Zhihao, Bao Xiaohua,etc. Challenges and Technological Breakthroughs in Tunnel Construction in China[J]. China Journal of Highway and Transport, 2020(12):1-14.
[3]	黄茂松,王卫东,郑刚.软土地下工程与深基坑研究进展[J]. 土木工程学报,2012(6):146-161.Huang Maosong, Wang Weidong, Zheng Gang. A Review of Recent Advances in the Underground Engineering and Deep Excavations in Soft Soils[J]. China Civil Engineering Journal,2012(6):146-161.
[4]	张顶立,方黄城,陈立平,等.隧道支护结构体系的刚度设计理论[J].岩石力学与工程学报,2021(4):649-662.Zhang Dingli, Fang Huangcheng, Chen Liping, etc. Stiffness Design Theory for Tunnel-support System[J]. Chinese Journal of Geotechnical Engineering,2021(4):649-662.
[5]	李淑.基于变形控制的北京地铁车站深基坑设计方法研究[D]. 北京:北京交通大学,2015.Li Shu. Research on Design of Beijing Subway Station Based on Deformation Controlling[D]. Beijing:Beijing Jiaotong University, 2015.
[6]	LUNARDI P.The Design and Construction of Tunnel Using the Apprcach Based on the Analysis of Controlled Deformation in Rocks and Solls[J]. Tunnel and Tunnelling Intemational,2005(51):3 - 30.
[7]	雷升祥. 地铁施工手册[M]. 北京: 人民交通出版社, 2020.Lei Shengxiang. Metro Construction Handbook [M]. Beijing: China Communications Press,2020.
[8]	GB 50911—2013,城市轨道交通工程监测技术规范[S].GB 50911—2013,Code for Monitoring Measurement of Urban Rail Transit Engineering[S].