Monitoring Study on Drift Deformation by Shield Tunnel

2013 ◽  
Vol 671-674 ◽  
pp. 1102-1105 ◽  
Author(s):  
Hai Xia Sun ◽  
Wen Zhao
Keyword(s):  
Water Quality ◽  
Monitoring Data ◽  
Ground Subsidence ◽  
Shield Tunnel ◽  
Monitoring Study ◽  
Maximum Subsidence ◽  
The One ◽  
Total Subsidence

Take the one-third of the allowable values as the basic value. The control standards of the ground subsidence is 30mm, and the control standards of the ground swell is 10mm. Take one typically stretch of sites as research object by the buried depth and plane disposition condition. Take ten sections and the kilometer post. Consider 52 contents as of an analysis. The maximum subsidence is mostly kept within 13mm. The monitoring data of each lateral section are certain differences because of the different gemological conditions, the water quality, soils covered and so on. When the shield drives off the monitoring section, the subsidence is about 6mm~16mm and 50% of the total subsidence. The main subsidence appears after the shield tail pass out for sand.

FORECASTING RESPONSES OF SEAGRASS DISTRIBUTIONS TO CHANGING WATER QUALITY USING MONITORING DATA

2003 ◽  
Vol 13 (2) ◽  
pp. 474-489 ◽  
Author(s):  
James W. Fourqurean ◽  
Joseph N. Boyer ◽  
Michael J. Durako ◽  
Lee N. Hefty ◽  
Bradley J. Peterson
Keyword(s):  
Water Quality ◽  
Monitoring Data

Deformation Monitoring and Data Analysis for Metro Construction with Mining Method in Dalian

2013 ◽  
Vol 353-356 ◽  
pp. 1604-1608
Author(s):  
Guang Bin Bai ◽  
Jie Zhao ◽  
Li Sheng Liu
Keyword(s):  
Data Analysis ◽  
Construction Method ◽  
Deformation Monitoring ◽  
Monitoring Data ◽  
Ground Subsidence ◽  
Tunnel Construction ◽  
Mining Method ◽  
Construction Process ◽  
Subway Tunnel ◽  
The Future

Based on a subway tunnel construction, the construction method was introduced. The ground subsidence, crown settlement and convergence displacement caused by the cut tunnel are monitored during the tunneling construction and the results of monitoring data for them are analyzed. This technology wells to guide the tunnel-entering construction effectively and avoid the tunnel-entering construction process prone to landslides, thus ensuring the safety of the tunnel construction and will guiding the future construction.

Comparative evaluation of runoff and water quality using HSPF and SWMM

2010 ◽  
Vol 62 (6) ◽  
pp. 1401-1409 ◽  
Author(s):  
Sae-Bom Lee ◽  
Chun-Gyeong Yoon ◽  
Kwang Wook Jung ◽  
Ha Sun Hwang
Keyword(s):  
Water Quality ◽  
Simulation Models ◽  
Urban Runoff ◽  
Monitoring Data ◽  
Accurate Estimation ◽  
Small Scale ◽  
Water Quality Simulation ◽  
Hspf Model ◽  
Small Watersheds ◽  
Bodies Of Water

Stormwater pollution is the untreated contaminated water that drains into natural waterways from land uses within an urban catchment. Several studies have demonstrated the deterioration of water quality in receiving bodies of water caused by stormwater runoff. The data have reported that urban runoff play primary roles in degrading water quality in adjacent aquatic systems. The accurate estimation of non-pollutant loads from urban runoff and the prediction of water quality in receiving waters are important. The objective of this paper is to assess the applicability of the watershed scale hydrologic and water quality simulation models SWMM and HSPF to simulate the hydrology of a small watershed in the Han River Basin. Monitoring was performed in small scale watersheds, which is homogeneous land use. The applicability of SWMM and HSPF model was examined for small watersheds using hourly monitoring data. The results of SWMM were reasonably reflected with observed data in small scale urban area. HSPF model was effective at specifying parameters related to runoff and water quality when using hourly monitoring data. The watershed models used in this study adequately simulated watershed characteristics and are recommended to support watershed management.

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