[1]靳军伟,付柏毅,陈允斌,等.隧道Park收敛模式正交下穿既有隧道影响分析[J].郑州大学学报(工学版),2022,43(01):76-82.[doi:10.13705/j.issn.1671-6833.2022.01.012]
　Jin Junwei,Fu Baiyi,Chen Yunbin,et al.The Influence of Tunnel Excavation to the Existing Vertical Overlapping Tunnels ba＜x＞sed on Park’s Convergence Modes[J].Journal of Zhengzhou University (Engineering Science),2022,43(01):76-82.[doi:10.13705/j.issn.1671-6833.2022.01.012]

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隧道Park收敛模式正交下穿既有隧道影响分析()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

43卷

期数:

2022年01期

页码:

76-82

栏目:

出版日期:

2022-01-09

文章信息/Info

Title:

The Influence of Tunnel Excavation to the Existing Vertical Overlapping Tunnels ba＜x＞sed on Park’s Convergence Modes

作者:

靳军伟¹; 付柏毅¹; 陈允斌²; 刘钢立³; 李明宇¹

郑州大学土木工程学院;山东正元建设工程有限责任公司;中铁十五局集团城市轨道交通工程有限公司;

Author(s):

Jin Junwei; Fu Baiyi; Chen Yunbin; Liu Gangli; Li Mingyu;

School of Civil Engineering, Zhengzhou University; Shandong Zhengyuan Construction Engineering Co., Ltd.; China Railway 15th Bureau Group City Rail Transit Engineering Co., Ltd.;

关键词:

隧道开挖; 位移控制方法; 数值分析; 隧道收敛模式; 既有隧道

Keywords:

Tunnel excavation;  displacement control method;  numerical analysis;  tunnel convergence mode; 

分类号:

TU454

DOI:

10.13705/j.issn.1671-6833.2022.01.012

文献标志码:

A

摘要:

摘 要：针对传统力控制方法分析隧道正交下穿引起的地表和既有隧道变形过程复杂的问题，本文基于Park收敛模型，采用位移控制方法对隧道开挖引起的地表沉降以及既有隧道拱底变形进行研究。首先，通过将工程实例地表沉降数据、本文方法以及传统力控制方法的结果进行对比，验证了位移控制方法在研究新建隧道垂直下穿既有隧道的合理性，然后使用Park的四种隧道收敛模式作为新建隧道的边界条件进行进一步分析。结论 计算结果表明，在给定隧道拱顶位移g的情况下，Park的四种收敛模式引起的地表沉降槽、隧道拱底变形的形状和数值均存在一定差异。收敛模式对地表沉降和拱底变形的影响由大到小依次为BC-2、BC-3、BC-4、BC-1。其中BC-3与BC-4较为接近，BC-1与实际的拟合效果最差。

Abstract:

Abstract: Due to the complexity of the traditional force control method in analyzing the deformation process of the ground caused by the orthogonal undercrossing of the tunnel, the displacement controlled method ba＜x＞sed on the Parks convergence mode is used to analyze the influence of tunnel excavation on the ground settlement and the longitudinal deformation of the arch bottom of the existing tunnels. First, the feasibility of the displacement control method is verified through a practical engineering example, and then the four tunnel convergence modes of Park are used as the boundary conditions of the new tunnel for further analysis. The comparison between the calculated results and the actual measurements shows that the results of the displacement control method for natural site settlement are very close to the measured data. The calculation results show that, given the displacement of the tunnel vault g, there are certain differences in the shape and value of the ground settlement trough and the deformation of tunnel arch bottom caused by Park’s four convergence models. The effects of convergence mode on ground settlement and arch bottom deformation are BC-2, BC-3, BC-4, BC-1 in descending order. Among them, BC-3 is relatively close to BC-4, and the fitting effect between BC-1 and the actual measurement is the worst.

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