CREEP EFFECT OF LOESS STRATA ON SURROUNDING ROCK PRESSURE OF TUNNELS

ZHU Caihui; LI Yubo; LAN Kaijiang; HE Haonan

doi:10.13204/j.gyjzG20072901

Volume 51 Issue 7

Nov. 2021

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Abstract

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2021 > 51(7): 18-24

You Qiang, You Meng. THE DISTINCTION AND DESIGN DEALING ON SHORT REINFORCED CONCRETE COLUMNS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(10): 55-58. doi: 10.13204/j.gyjz201110014

Citation:

ZHU Caihui, LI Yubo, LAN Kaijiang, HE Haonan. CREEP EFFECT OF LOESS STRATA ON SURROUNDING ROCK PRESSURE OF TUNNELS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(7): 18-24. doi: 10.13204/j.gyjzG20072901

You Qiang, You Meng. THE DISTINCTION AND DESIGN DEALING ON SHORT REINFORCED CONCRETE COLUMNS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(10): 55-58. doi: 10.13204/j.gyjz201110014

Citation:

ZHU Caihui, LI Yubo, LAN Kaijiang, HE Haonan. CREEP EFFECT OF LOESS STRATA ON SURROUNDING ROCK PRESSURE OF TUNNELS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(7): 18-24. doi: 10.13204/j.gyjzG20072901

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CREEP EFFECT OF LOESS STRATA ON SURROUNDING ROCK PRESSURE OF TUNNELS

doi: 10.13204/j.gyjzG20072901

1. State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China;
2. Institute of Geotechnical Engineering, Xi'an University of Technology, Xi'an 710048, China;
3. China Railway First Survey and Design Institute Group Co., Ltd., Xi'an 710043, China

Received Date: 2020-07-29
Available Online: 2021-11-11

Abstract

Abstract

Based on a highway loess tunnel, the uniaxial creep tests of undisturbed Q₂ loess in the different moisture content were conducted to explore the creep properties, and the effect of long-term deformation on the evolution laws of surrounding rock pressure and convergence deformation were analyzed by numerical methods, finally, the distribution modes and calculation methods of surrounding rock pressure were put forward. The results showed that:1) in the course of long-term deformation development of loess strata, the surrounding rock pressure and vertical convergence deformation all showed a trend of increase. 10 years later, the surrounding rock pressure would keep it stable, and the distribution form would be in the "cat's ear" shape. The average magnifications of vertical and horizontal surrounding rock pressure were 1.61 and 1.33, the average vertical subsidence of the arch crown was magnified by 1.22 times and horizontal convergence deformation was reduced by 0.97 times respectively;2) with the increase of tunnel embedment, the ratios of surrounding rock pressure and convergence deformation generally increared, and increase of embedment, the magnified effects on stress and deformation were more obvious; 3) the greater the initial moisture content of the loess, the greater the surrounding rock pressure and convergence deformation, but the ratios of them tended to decrease;4)the surrounding rock pressure ratio was introduced into Terzaghi theory and XIE Jiaxiu's formula, the modified formula of surrounding rock pressure were put forward, and the long-term deformation effect of loess strata on the surrounding rock pressure could be considered.
- loess stratum,
- tunnel,
- surrounding rock pressure,
- creep effect

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References(18)

References

[1]	周大为, 吴亚平, 杨玫.大断面黄土隧道的流变特性分析[J]. 山西建筑, 2007, 33(18):297-298.
[2]	李烨, 许崇帮. 大酉山隧道围岩长期变形分析[J]. 公路交通科技, 2013, 30(12):120-124.
[3]	孙钧.岩土材料流变及其工程应用[M].北京:中国建筑工业出版社, 1999:209-380.
[4]	王松鹤, 骆亚生. 黄土三轴剪切蠕变特性研究[J]. 岩土工程学报, 2010, 32(10):1633-1637.
[5]	李广冬. 黄土的三轴蠕变特性试验研究[D]. 杨林:西北农林科技大学, 2011.
[6]	郭增玉, 张朝鹏, 夏旺民.高湿度Q₂黄土的非线性流变本构模型及参数[J]. 岩石力学与工程学报, 2000, 19(6):780-784.
[7]	谢星, 赵法锁, 王东红. 西安地区Q₂黄土非线性流变模型[J]. 长安大学学报(自然科学版), 2009, 29(5):41-47.
[8]	张朝鹏. 黄土的非线性流变本构模型及其在逆作法工程中的应用[D]. 西安:西安理工大学, 2003.
[9]	周德培. 圆形隧道的围岩流变压力研究[J]. 西南交通大学学报, 1992(4):84-90.
[10]	王中文, 方建勤, 夏才初, 等. 考虑围岩蠕变特性的隧道二衬合理支护时机确定方法[J]. 岩石力学与工程学报, 2010, 29(增刊1):3241-3246.
[11]	刘孟波, 廖少明, 朱明勇, 等软土蠕变对隧道结构荷载及变形的影响分析[J]. 现代隧道技术, 2017, 54(4):107-114.
[12]	林文凯, 晏启祥, 刘羲睿, 等. 基于Burgers蠕变模型的圆形隧道内力分析方法对比研究[J]. 铁道标准设计, 2016, 60(12):104-108.
[13]	中华人民共和国交通部.公路隧道设计规范:JTG D70-2004[S]. 北京:人民交通出版社, 2004.
[14]	谢家烋. 浅埋隧道的地层压力[J]. 土木工程学报, 1964(6):58-70.
[15]	王春浩. 超大断面黄土公路隧道围岩压力计算方法分析[J]. 现代隧道技术, 2015, 52(3):175-181.
[16]	杨建民, 喻渝, 谭忠盛, 等. 大断面深浅埋黄土隧道围岩压力试验研究[J]. 铁道工程学报, 2009, 30(2):76-79.
[17]	王明年, 郭军, 罗禄森, 等.高速铁路大断面深埋黄土隧道围岩压力计算方法[J]. 中国铁道科学, 2009, 30(5):54-58.
[18]	于丽, 吕城, 段儒禹, 等. 浅埋黄土隧道围岩压力计算方法[J]. 中国铁道科学, 2019, 40(4):69-76.

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