REAEARCH ON THE MECHANISM OF THE INFLUENCE OF DYNAMIC LOAD OF HIGH-SPEED TRAIN ON LAND SUBSIDENCE SUBJECTED TO FAULT EFFECT: A CASE STUDY OF THE HUAILAI SECTION OF THE BEIJING-ZHANGJIAKOU HIGH-SPEED RAILWAY

WANG Miaomiao; FENG Chengjun; QI Bangshen; MENG Jing; ZHANG Peng; REN Siqi; TAN Chengxuan

doi:10.12090/j.issn.1006-6616.2018.24.03.042

Volume 24 Issue 3

Jun. 2018

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Article Navigation > Journal of Geomechanics > 2018 > 24(3): 407-415

WANG Miaomiao, FENG Chengjun, QI Bangshen, et al., 2018. REAEARCH ON THE MECHANISM OF THE INFLUENCE OF DYNAMIC LOAD OF HIGH-SPEED TRAIN ON LAND SUBSIDENCE SUBJECTED TO FAULT EFFECT: A CASE STUDY OF THE HUAILAI SECTION OF THE BEIJING-ZHANGJIAKOU HIGH-SPEED RAILWAY. Journal of Geomechanics, 24 (3): 407-415. DOI: 10.12090/j.issn.1006-6616.2018.24.03.042

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REAEARCH ON THE MECHANISM OF THE INFLUENCE OF DYNAMIC LOAD OF HIGH-SPEED TRAIN ON LAND SUBSIDENCE SUBJECTED TO FAULT EFFECT: A CASE STUDY OF THE HUAILAI SECTION OF THE BEIJING-ZHANGJIAKOU HIGH-SPEED RAILWAY

doi: 10.12090/j.issn.1006-6616.2018.24.03.042

WANG Miaomiao^{1, 2
,},
FENG Chengjun^{1, 2
,
,},
QI Bangshen^{1, 2},
MENG Jing^{1, 2},
ZHANG Peng^{1, 2},
REN Siqi^{1, 2},
TAN Chengxuan^{1, 2}

1.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
2.
Key Laboratory of Neotectonic Movement and Geohazard, Ministry of Land and Resources, Beijing 100081, China

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Received: 2017-12-19
Revised: 2018-03-28
Published: 2018-06-01

Abstract

Abstract

The Huailai section of Beijing-Zhangjiakou (BZ) high-speed railway is located in the compound position of the Huaizhuo basin and Yanfan basin. The ground subsidence resulted from the difference of engineering geological characteristics of soil and sliding of buried faults in the basin will undoubtedly threaten the safe operation of BZ high-speed railway. Using numerical simulation to study the mechanism of the influence of dynamic load of high-speed train on land subsidence subjected to fault effect, the 2D geological model of soils in the Huailai section of BZ high-speed railway is established based on the field data of engineering geological boreholes and geophysical exploration in this study. The results indicate that the dynamic load of the train mainly affects the soil within the depth of 50m, with increasing displacements accompanying decreasing train velocities and increasing train mass. Under both the dynamic train load and fault slip, the settlement of the soil mainly affected by the dynamic train load tends to be mainly controlled by the fault slip as the depth increases. And the settlement of the soil below 50m is controlled by the fault slip. What's more, the settlement of soil around the fault in the hanging wall is larger than that in the footwall at the same distance from the fault.
- active fault,
- dynamic load of high-speed train,
- numerical simulation,
- dynamic response,
- land subsidence

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References(19)

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REAEARCH ON THE MECHANISM OF THE INFLUENCE OF DYNAMIC LOAD OF HIGH-SPEED TRAIN ON LAND SUBSIDENCE SUBJECTED TO FAULT EFFECT: A CASE STUDY OF THE HUAILAI SECTION OF THE BEIJING-ZHANGJIAKOU HIGH-SPEED RAILWAY

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REAEARCH ON THE MECHANISM OF THE INFLUENCE OF DYNAMIC LOAD OF HIGH-SPEED TRAIN ON LAND SUBSIDENCE SUBJECTED TO FAULT EFFECT: A CASE STUDY OF THE HUAILAI SECTION OF THE BEIJING-ZHANGJIAKOU HIGH-SPEED RAILWAY

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