Analysis of land subsidence changes on  the Beijing Plain from 2004 to 2015

Lin, Guo‐Qiang; Gong, Huili; Li, Xiaojuan; Zhu, Lin; Lv, Wei; Lyu, Mingyuan

doi:10.5194/piahs-382-291-2020

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…Currently, domestic and foreign scholars' studies on Tianjin mainly focus on surface deformation characteristics in the main urban area [16], the long time series of groundwater level changes [17,18], and the response relationship between surface deformation and groundwater level changes [19,20],there are important for the development of land resources and ensuring the safety of infrastructure in Tianjin. However, groundwater exploitation has not been carried out in the reclaimed areas of Tianjin Binhai New Area.…”

Section: Introductionmentioning

confidence: 99%

Detection Ground Deformation characteristics of Reclamation Land with Time-Series InSAR in Tianjin Binhai New Area,china

Chen,

Yan,

Chen

et al. 2023

Preprint

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In order to alleviate the conflict between populations and land-resource, Tianjin has adopted multi-phase reclamation projects to formed large-scale artificial reclamation land. However, the reclamation areas are susceptible to subsidence, which demonstrate a serious threat to infrastructure and people’s lives and property. The SBAS-InSAR was used to acquired surface deformation of Tianjin Binhai New Area from January 2017 year to December 2022 year, analyzed in depth the response relationship between land subsidence and reclamation projects time as well as the land use type. The results show that the Lingang Industrial Zone was the earliest to be reclaimed, with extensive reclamation completed by 2016 year, while Nangang Industrial Zone and Hangu Port started reclamation projects in 2009 year, some areas are still currently under construction. There is a strong correlation between surface deformation and reclamation time, the severe land subsidence occurred over newly reclaimed areas. Surface deformation gradually intensifies from west to east, the maximum surface settlement in Nangang Industrial Zone, Lingang Industrial Zone from the west to the east has changed from -50 mm to -890 mm,45 mm to -580 mm, respectively, reclamation area of Hangu Port with maximum surface deformation is -250 mm. Significant differences deformation among different land use types, which reclamation projects completed in the same time. Subsidence is positively correlated with surface load, in areas with higher surface loads, the surface settlement is also severer,the average surface settlement for the heavy shipyard, 67 grain storage tanks, 27 grain storage tanks, road, and bare land are -201 mm, -166 mm, -107 mm, -64 mm, and -43 mm, respectively. This study reveals significant differences of surface deformation in the reclamation completed at different times and the load is the main driving factor of settlement difference in the reclamation land completed at the same time. Which has important guiding significance for preventing and controlling geological disasters in the reclamation area and later development planning.

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Section: Introductionmentioning

confidence: 99%

Detection Ground Deformation characteristics of Reclamation Land with Time-Series InSAR in Tianjin Binhai New Area,china

Chen,

Yan,

Chen

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Currently, research conducted by domestic and international scholars on Tianjin primarily focuses on the surface deformation characteristics within the main urban area [23], the long time series of groundwater level changes [24,25], and the response relationship between surface deformation and groundwater level changes [26,27], which is important for the development of land resources and ensuring the safety of infrastructure in Tianjin. However, groundwater exploitation has not been carried out in the reclaimed areas of Tianjin Binhai New Area.…”

Section: Introductionmentioning

confidence: 99%

Detection Ground Deformation Characteristics of Reclamation Land with Time-Series Interferometric Synthetic Aperture Radar in Tianjin Binhai New Area, China

Chen,

Yan,

Chen

et al. 2023

Remote Sensing

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In order to alleviate the conflict between populations and land resource, Tianjin adopted multi-phase reclamation projects to the formed large-scale artificial reclamation land. The reclamation areas, however, are prone to subsidence, which poses a significant threat to infrastructure as well as the safety and assets of the residents. The SBAS-InSAR was used to acquire surface deformation of Tianjin Binhai New Area from January 2017 to December 2022, analyze in depth the response relationship between land subsidence, reclamation project time, and land-use type. There is a strong correlation between surface deformation and reclamation time. Severe land subsidence occurred over newly reclaimed areas. In the offshore direction, the deformation values of the Nangang Industrial Zone, the Lingang Industrial Zone, and Hangu Harbor were −98 mm to −890 mm, 45 mm to −580 mm, and −140 mm to −290 mm, respectively. Significant differences in deformation were detected among different land-use types where reclamation projects were completed in the same time. Subsidence was positively correlated with surface load; in areas with higher surface loads, the surface settlement was also more severe. The average surface settlement for the heavy shipyard, with 67 grain storage tanks and 27 grain storage tanks, road, and bare land were −201 mm, −166 mm, −107 mm, −64 mm, and −43 mm, respectively. This study reveals significant differences of surface deformation in the reclamation completed at different times, and determines that the load is the main driving factor of settlement difference in the reclamation land completed at the same time. This has important guiding significance for preventing and controlling geological disasters in the reclamation area and later development planning.

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Employing machine learning to document trends and seasonality of groundwater-induced subsidence

Patra,

Chu,

Tatas

2024

Nat Hazards

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Analysis of land subsidence changes on the Beijing Plain from 2004 to 2015

Cited by 3 publications

References 16 publications

Detection Ground Deformation characteristics of Reclamation Land with Time-Series InSAR in Tianjin Binhai New Area,china

Detection Ground Deformation characteristics of Reclamation Land with Time-Series InSAR in Tianjin Binhai New Area,china

Detection Ground Deformation Characteristics of Reclamation Land with Time-Series Interferometric Synthetic Aperture Radar in Tianjin Binhai New Area, China

Employing machine learning to document trends and seasonality of groundwater-induced subsidence

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