Simulation of the water level influence on the difference within the water-tube tiltmeter in Shuangyang Lake
This article analyzes the relationship between the water level and the water-tube tilting in Shuangyang lake, based on the differential deformation features reflected by the NS and EW components of the water-tube tiltmeter. The results show a good spatiotemporal consistency between the variation of...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2021-04-01
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| Series: | Earthquake Research Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772467021000130 |
| _version_ | 1811173263100870656 |
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| author | Chong Yue Chuncheng Tang Wei Yan Xiaodong Pan Xueme Li Yuwen Tan Zongfeng Zhang Tianlong Yu |
| author_facet | Chong Yue Chuncheng Tang Wei Yan Xiaodong Pan Xueme Li Yuwen Tan Zongfeng Zhang Tianlong Yu |
| author_sort | Chong Yue |
| collection | DOAJ |
| description | This article analyzes the relationship between the water level and the water-tube tilting in Shuangyang lake, based on the differential deformation features reflected by the NS and EW components of the water-tube tiltmeter. The results show a good spatiotemporal consistency between the variation of water level and the NS tilt component, which is considered to be affected by the magnitude and duration of the water level variation in Shuangyang Lake. The article uses Landsat remote sensing image data to extract the water boundary of Shuangyang Lake, and takes advantage of the finite element numerical simulation method to build three-dimensional models for different geological structural conditions of the Shuangyang seismostation. The simulation results show that when the underground medium is granite, the effect of water level variation on the vertical displacement of the surface is non-directional. With a 50-m soil layer in Model 2, the simulated NS tilt variation is equivalent to the actual observed water-tube tiltmeter NS component when the water level variation is 0.44 m and 0.8m. When the variation of water level reaches 2.0m, the simulation result of the NS component is 79.6 ms, which is slightly larger than the observed result of 60.32 ms. However, the simulation results show that the variation of the EW component is significantly smaller than that of the NS one. Due to the fact that the Shuangyang lake is long in the NS direction and short in the EW direction, the existence of the soil layer tends to generate ground deformation along the NS direction in the vicinity of the lake after the increase of water level, thereby resulting in the difference of the ground deformation in the two directions. |
| first_indexed | 2024-04-10T17:43:55Z |
| format | Article |
| id | doaj.art-0f7ff49e9ef64e0e87975147e7fc1c5d |
| institution | Directory Open Access Journal |
| issn | 2772-4670 |
| language | English |
| last_indexed | 2024-04-10T17:43:55Z |
| publishDate | 2021-04-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Earthquake Research Advances |
| spelling | doaj.art-0f7ff49e9ef64e0e87975147e7fc1c5d2023-02-03T05:01:40ZengKeAi Communications Co. Ltd.Earthquake Research Advances2772-46702021-04-0112100013Simulation of the water level influence on the difference within the water-tube tiltmeter in Shuangyang LakeChong Yue0Chuncheng Tang1Wei Yan2Xiaodong Pan3Xueme Li4Yuwen Tan5Zongfeng Zhang6Tianlong Yu7China Earthquake Networks Center, Beijing, 100045, Beijing, China; Corresponding author.Earthquake and Volcano Prediction Research Center of Jilin Province Seismological Bureau, Changchun, 130117, Jilin, ChinaChina Earthquake Networks Center, Beijing, 100045, Beijing, ChinaEarthquake and Volcano Prediction Research Center of Jilin Province Seismological Bureau, Changchun, 130117, Jilin, ChinaFengman Seismostation of Jilin Province, Jilin, 132108, Jilin, ChinaFengman Seismostation of Jilin Province, Jilin, 132108, Jilin, ChinaShuangyang Seismostation, Earthquake Administration of Changchun City, Changchun, 130060, Jilin, ChinaShuangyang Seismostation, Earthquake Administration of Changchun City, Changchun, 130060, Jilin, ChinaThis article analyzes the relationship between the water level and the water-tube tilting in Shuangyang lake, based on the differential deformation features reflected by the NS and EW components of the water-tube tiltmeter. The results show a good spatiotemporal consistency between the variation of water level and the NS tilt component, which is considered to be affected by the magnitude and duration of the water level variation in Shuangyang Lake. The article uses Landsat remote sensing image data to extract the water boundary of Shuangyang Lake, and takes advantage of the finite element numerical simulation method to build three-dimensional models for different geological structural conditions of the Shuangyang seismostation. The simulation results show that when the underground medium is granite, the effect of water level variation on the vertical displacement of the surface is non-directional. With a 50-m soil layer in Model 2, the simulated NS tilt variation is equivalent to the actual observed water-tube tiltmeter NS component when the water level variation is 0.44 m and 0.8m. When the variation of water level reaches 2.0m, the simulation result of the NS component is 79.6 ms, which is slightly larger than the observed result of 60.32 ms. However, the simulation results show that the variation of the EW component is significantly smaller than that of the NS one. Due to the fact that the Shuangyang lake is long in the NS direction and short in the EW direction, the existence of the soil layer tends to generate ground deformation along the NS direction in the vicinity of the lake after the increase of water level, thereby resulting in the difference of the ground deformation in the two directions.http://www.sciencedirect.com/science/article/pii/S2772467021000130Water-tube tiltmeter at shuangyang seismostationWater level of shuangyang lakeFinite element methodDifference of the ground deformation |
| spellingShingle | Chong Yue Chuncheng Tang Wei Yan Xiaodong Pan Xueme Li Yuwen Tan Zongfeng Zhang Tianlong Yu Simulation of the water level influence on the difference within the water-tube tiltmeter in Shuangyang Lake Earthquake Research Advances Water-tube tiltmeter at shuangyang seismostation Water level of shuangyang lake Finite element method Difference of the ground deformation |
| title | Simulation of the water level influence on the difference within the water-tube tiltmeter in Shuangyang Lake |
| title_full | Simulation of the water level influence on the difference within the water-tube tiltmeter in Shuangyang Lake |
| title_fullStr | Simulation of the water level influence on the difference within the water-tube tiltmeter in Shuangyang Lake |
| title_full_unstemmed | Simulation of the water level influence on the difference within the water-tube tiltmeter in Shuangyang Lake |
| title_short | Simulation of the water level influence on the difference within the water-tube tiltmeter in Shuangyang Lake |
| title_sort | simulation of the water level influence on the difference within the water tube tiltmeter in shuangyang lake |
| topic | Water-tube tiltmeter at shuangyang seismostation Water level of shuangyang lake Finite element method Difference of the ground deformation |
| url | http://www.sciencedirect.com/science/article/pii/S2772467021000130 |
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