Field Test Study on a New Type of Reinforced Retaining Wall with Full-Height Rigid Facing for Railway

被引：0

作者：

Niu X. ^{[1
,2
]}

Yang G. ^{[1
,3
]}

Zhou S. ^{[4
]}

Yang G. ^{[1
,3
]}

Wang Z. ^{[6
]}

Wang H. ^{[3
]}

机构：

[1] State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang

[2] School of Traffic and Transportation, Shijiazhuang Tiedao University, Shijiazhuang

[3] School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang

[4] China Railway Society, Beijing

[5] China State Railway Group Co., Ltd., Beijing

[6] China Railway Eryuan Engineering Group Co., Ltd., Chengdu

来源：

Zhongguo Tiedao Kexue/China Railway Science | 2020年 / 41卷 / 05期

关键词：

Chengdu-Kunming Railway; Displacement; Field test; Full-height rigid facing; Reinforced retaining wall; Soil pressure;

D O I：

10.3969/j.issn.1001-4632.2020.05.01

中图分类号：

学科分类号：

摘要：

Based on the new type of reinforced retaining wall with full-height rigid facing for Chengdu-Kunming Railway, the variation rules of the vertical stress of retaining wall base, the horizontal and vertical soil pressures on the back of gravel bag, geogrid strains at different layers, the wall compression and the horizontal displacement of wall facing were studied through field prototype test. Results show that the vertical stress of the base is bimodal along the length of the reinforcement. The vertical stress of the base near the gravel bag decreases with time, while the rest increases with time. The horizontal and vertical soil pressures on the back of gravel bag are nonlinear along the height of the wall. The grid strain changes with time in a bimodal manner, and the change rate increases gradually from the bottom to the top of the wall. After the facing is completed, the growth rate of wall compression decreases obviously. The wall compression in the roadbed center is greater than that in the roadbed shoulder. The overall horizontal displacement of the wall facing is less than 1 mm. The seismic performance of the retaining wall is good. After two earthquakes with the magnitudes of 5.1 and 3.3, the maximum vertical stress of the base increases by 4.9 %. The horizontal and vertical soil pressures on the back of gravel bag decrease by 3.6%~20.0% and 2.0%~7.9%, respectively. The grid strain, wall compression and wall horizontal displacement increase slightly. © 2020, Editorial Department of China Railway Science. All right reserved.

引用

页码：1 / 10

页数：9

共 18 条

[1]

WU Lianhai, YANG Guangqing, ZHANG Qingbo, Et al., In-Situ Test on Dynamic Responses of Reinforced Soil Retaining Walls for High-Speed Railways, Journal of Southwest Jiaotong University, 52, 3, pp. 546-553, (2017)

[2]

JIN Jing, YANG Guangqing, WANG Zhijie, Et al., Engineering Characteristics and Influence Factors of Multi-Tiered Reinforced Soil High Retaining Wall, China Railway Science, 40, 1, pp. 8-16, (2019)

[3]

YONEZAWA Toyoji, YAMAZAKI Takayuki, TATEYAMA Masaru, Et al., Design and Construction of Geosynthetic-Reinforced Soil Structures for Hokkaido High-Speed Train Line, Transportation Geotechnics, 1, 1, pp. 3-20, (2014)

[4]

TATSUOKA Fumio, TATEYAMA Masaru, KOSEKI Junichi, Et al., Geosynthetic-Reinforced Soil Structures for Railways in Japan, Transportation Infrastructure Geotechnology, 1, 1, pp. 3-53, (2014)

[5]

TATSUOKA F, TATEYAMA M, MOHRI Y, Et al., Remedial Treatment of Soil Structures Using Geosynthetic-Reinforcing Technology [J], Geotextiles and Geomembranes, 25, 4, pp. 204-220, (2007)

[6]

KONGKITKUL W, TATSUOKA F, HIRAKAWA D, Et al., Time Histories of Tensile Force in Geogrid Arranged in Two Full-Scale High Walls, Geosynthetics International, 17, 1, pp. 12-32, (2010)

[7]

KUWANO J, KOSEKI J, MIYATA Y., Performance of Reinforced Soil Walls during the 2011 Tohoku Earthquake, Geosynthetics International, 21, 3, pp. 1-18, (2014)

[8]

UCHIMURA T, TAMURA Y, TATAYAMA M, Et al., Vertical and Horizontal Loading Tests on Full-Scale Preloaded and Prestressed Geogrid-Reinforced Soil Structures [J], Soils Found, 45, 6, pp. 75-88, (2005)

[9]

XU Peng, JIANG Guanlu, QIU Junjie, Et al., Shaking Table Tests on Reinforced Soil Retaining Walls with Full-Height Rigid Facing, Rock and Soil Mechanics, 40, 3, pp. 998-1004, (2019)

[10]

XU Peng, JIANG Guanlu, QIU Junjie, Et al., Limit Analysis on Yield Acceleration and Failure Model of Reinforced Soil Retaining Walls Using Two-Wedge Method, Rock and Soil Mechanics, 39, 8, pp. 2765-2770, (2018)

← 1 2 →