Journal of Jilin University(Engineering and Technology Edition) ›› 2022, Vol. 52 ›› Issue (3): 596-603.doi: 10.13229/j.cnki.jdxbgxb20200818

Previous Articles    

Experiment on mechanical properties of new type assembled double-cabin utility tunnel

Ya-chuan KUANG1(),Zhe-xuan SONG1,Yin-hu LIU2,Xiao-fei MO3,Liang-ming FU2,Shi-quan LUO2   

  1. 1.School of Civil Engineering，Central South University，Changsha 410075，China
    2.Power China Zhongnan Engineering Corporation Limited，Changsha 410014，China
    3.Jinke Property Group Co. ，Ltd. ，Chongqing 401121，China
  • Received:2020-10-26 Online:2022-03-01 Published:2022-03-08

RICH HTML

 4   

PDF (PC)

128

Abstract:

Based on the U-shaped hoop pin and longitudinal rib connection technology， a new type of assembled utility tunnel was proposed. Through the static load test of the full-scale model， the mechanical properties of the new assembled double-cabin utility tunnel， such as load-bearing capacity， deformation capacity， and component cracking， were studied systematically. The test results show that the connection performance of the U-shaped hoop pin and longitudinal rib connection is reliable. When the test is loaded to the design load of 435 kN， cracks appear at the end of the assembled utility tunnel. During the loading process， the long-span roof slab of the assembled utility tunnel experiences three stages： cracking， stiffness degradation and ultimate failure. Under the characteristic value of load， the crack width and deflection of the assembled utility tunnel do not exceed the specification limits， which meet the requirements of the normal service limit state. The ultimate bearing capacity of the utility tunnel is 3.71 times of the design value of load. The ultimate bearing capacity meets the design requirements， and there is a large safety reserve. The experimental research results provide a technical basis for the practical application of the utility tunnel of this new assembly scheme.

Key words: Structural Engineering, assembled double-cabin utility tunnel, U-shaped hoop, full-scale model, static test, mechanic property

CLC Number: 

  • TU990.3

Fig.1

Schematic diagram of U-shaped hoop pinand longitudinal rib connection"

Fig.2

New assembled utility tunnel"

Fig.3

Reinforcement drawing of tunnel structure"

Table 1

Mechanical properties of steel bar"

钢筋直径/mm屈服强度/MPa极限强度/MPa屈服应变εy

12

14

16

20

428

416

446

453

616

592

622

641

2088

2044

2178

2210

Fig.4

Schematic diagram of test device"

Table 2

Test loading procedure"

加载等级载荷/kN
大跨板小跨板侧墙

1

2

3

4

5（标准值）

6

7（设计值）

8

9

10

11

12

13

14

15

71

142

213

284

355

395

435

507

579

650

722

794

848

884

940

32

64

96

128

160

178

196

229

261

293

325

358

382

398

424

47

94

141

188

235

262

289

336

383

430

478

526

561

585

622

Fig.5

Location of rebar and concrete strain gauge"

Fig.6

Location of displacement device"

Fig.7

On-site loading of assembled utility tunnel"

Fig.8

Development of cracks at thebeginning of the test"

Fig.9

Development of cracks at the end of the test"

Fig.10

Schematic diagram of crack distribution"

Fig.11

Load-displacement curve"

Fig.12

Concrete strain curve"

Fig.13

Steel bar strain curve"

Table 3

Bending capacity of large-span"

截面位置受拉钢筋面积/mm2受压钢筋面积/mm2

受弯承载力

/（kN·m）

侧墙支座

跨中

中间墙支座

2199

2199

2199

2199

1407

2199

386.45

339.74

386.45

1 雷升祥. 综合管廊与管道盾构[M]. 北京: 中国铁道出版社, 2015.
2 钱七虎, 陈晓强. 国内外地下综合管线廊道发展的现状、问题及对策[J]. 地下空间与工程学报, 2007, 3(2): 191-194.
Qian Qi-hu, Chen Xiao-qiang. Development status, problems and countermeasures of utility tunnel at home and abroad[J]. Journal of Underground Space and Engineering, 2007, 3(2): 191-194.
3 孙浩康. 装配整体式综合管廊施工技术探讨[J]. 建材发展导向, 2017, 15(7): 173-175.
Sun Hao-kang. Discussion on the construction technology of monolithic precast concrete utility tunnel gallery[J]. Development Guide to Building Materials,2017, 15(7): 173-175.
4 胡翔, 薛伟辰. 预制预应力综合管廊受力性能试验研究[J]. 土木工程学报, 2010, 43(5): 29-37.
Hu Xiang, Xue Wei-chen. Experimental study of mechanical properties of PPMT[J]. China Civil Engineering Journal, 2010, 43(5): 29-37.
5 王恒栋, 薛伟辰. 综合管廊工程理论与实践[M]. 北京:中国建筑工业出版社, 2013.
6 Khaled A. Soudki S H R B. Horizontal connection for precast concrete shear walls subjected to cyclic deformations part 2: prestressed connections[J]. PCI Journal, 1995, 40(5): 82-96.
7 Khaled A, Soudki S H R. Horizontal connections for precast concrete shear walls subjected to cyclic deformations part1:mild steel connections[J]. PCI Journal, 1995, 40(4): 78-96.
8 薛伟辰, 胡翔, 王恒栋. 上海世博园区预制预应力综合管廊力学性能试验研究[J]. 特种结构, 2009, 26(1): 105-108, 116.
Xue Wei-chen, Hu Xiang, Wang Heng-dong. Experimental studies on mechanical properties of PPMT in Shanghai expo area[J]. Special Structures, 2009, 26 (1): 105-108, 116.
9 田子玄. 装配叠合式混凝土地下综合管廊受力性能试验研究[D]. 哈尔滨:哈尔滨工业大学土木工程学院, 2016.
Tian Zi-xuan. Experimental research on force performance of precast concrete underground comprehensive municipal tunnel[D]. Harbin: College of Civil Engineering, Harbin Institute of Technology, 2016.
10 易伟建, 颜良, 彭真. 无腋角综合管廊结构足尺模型静载试验及有限元分析[J]. 湖南大学学报: 自然科学版, 2019, 46(7): 1-10.
Yi Wei-jian, Yan Liang, Peng Zhen. Static load test and finite element analysis of full-scale model of assembled utility tunnel structure without axillary angle[J]. Journal of Hunan University(Natural Sciences), 2019, 46(7): 1-10.
11 彭真. 综合管廊节段模型足尺寸试验与有限元模拟[D]. 长沙: 湖南大学土木工程学院, 2017.
Peng Zhen. Full-scale test and finite element analysis of the municipal tunnel section model[D]. Changsha: College of Civil Engineering, Hunan University, 2017.
12 黄文翾. 预制拼装式城市地下综合管廊地震动力响应研究[D]. 成都: 西南交通大学土木工程学院, 2018.
Huang Wei-xuan. Study on seismic dynamic response of prefabricated integrated urban underground pipe gallery[D]. Chengdu: College of Civil Engineering, Southwest Jiaotong University, 2018.
13 宫亚峰, 逄蕴泽, 王博, 等. 基于吉林省路况的新型预制装配式箱涵结构的力学性能[J]. 吉林大学学报: 工学版, 2021, 51(3): 917-924.
Gong Ya-feng, Pang Yun-ze, Wang Bo, et al. Mechanical properties of new prefabricated box culvert structure based on road conditions in Jilin province[J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(3): 917-924.
14 . 城市综合管廊工程技术规范 [S].
15 . 混凝土结构设计规范(2015年版) [S].
16 Yang Y, Zhou B, Xie X, et al. Characteristics and causes of cracking and damage of shield tunnel segmented lining in construction stage—a case study in Shanghai soft soil[J]. European Journal of Environmental and Civil Engineering, 2017, 22(Sup.1): 213-227.
17 Wong R C K, Ma S K Y, Wong R C H, et al. Shear strength components of concrete under direct shearing[J]. Cement and Concrete Research, 2007, 37(8): 1248-1256.
[1] Xue-ping FAN,Guang-hong YANG,Zhi-peng SHANG,Xiao-xiong ZHAO,Qing-kai XIAO,Yue-fei LIU. Dynamic reliability fusion prediction of long-span bridge girder considering structural serviceability [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(1): 144-153.
[2] Fu-shou LIU,Qi WEI,Wen-ting XU,Guo-jin TAN. Damage detection of truss structures based on elastic wave propagation and spectral element method [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(6): 2087-2095.
[3] Xue-ping FAN,Guang-hong YANG,Qing-kai XIAO,Yue-fei LIU. Optimal R-vine copula information fusion for failure probability analysis of long-span bridge girder [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(4): 1296-1305.
[4] Jiang YU,Zhi-hao ZHAO,Yong-jun QIN. Damage of reinforced concrete shear beams based on acoustic emission and fractal [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(2): 620-630.
[5] Er-gang XIONG,Han XU,Ci TAN,Jing WANG,Ruo-yu DING. Shear strength of reinforced concrete beams based on elastoplastic stress field theory [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(1): 259-267.
[6] Wei-xiao XU,Yang CHENG,Wei-song YANG,Jia-chang JU,De-hu YU. Quasi-static test of RC frame-seismic wall dual structural system [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(1): 268-277.
[7] Hao GAO,Jun-jie WANG,Hui-jie LIU,Jian-ming WANG. Design criterion and applied devices for controlled seismic behavior of continuous girder bridges [J]. Journal of Jilin University(Engineering and Technology Edition), 2020, 50(5): 1718-1727.
[8] Xue-ping FAN,Guang QU,Yue-fei LIU. Bridge extreme stress prediction based on new data assimilation algorithm [J]. Journal of Jilin University(Engineering and Technology Edition), 2020, 50(2): 572-580.
[9] De-lei YANG,Le-wei TONG. Calculation formula of SCF for CHS⁃CFSHS welded T⁃joints with brace under axial tension [J]. Journal of Jilin University(Engineering and Technology Edition), 2019, 49(6): 1891-1899.
[10] SU Xiao-ping,WANG Qing. Corrosion damage of concrete under multi-salt soaking, freezing-thawing and dry-wet cycles [J]. 吉林大学学报(工学版), 2015, 45(1): 112-120.
[11] ZHANG Li-ye, GUO Xue-dong, DONG Li-juan. Bridge system mean time to failure with load-sharing process [J]. 吉林大学学报(工学版), 2013, 43(05): 1247-1252.
[12] GUO Xue-dong, ZHANG Li-ye, DONG Li-juan, WU Yun-tao, ZHANG Qiang. Bridge system reliability assessment method [J]. , 2012, (03): 634-638.
[13] JIANG Hao, GUO Xue-Dong, ZHANG Li-Ye. Damage diagnosis of concrete structure based on modal strain energy theory [J]. 吉林大学学报(工学版), 2010, 40(增刊): 209-0213.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Engineering and Technology Edition), All Rights Reserved.
Tel: +86-431-85095297　Fax: +86-431-85094074　E-mail: xbgxb@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd