Classification of Dissolved and Particulate Phosphate Components in Xiangxi River, China

2014 ◽  
Vol 535 ◽  
pp. 293-297
Author(s):  
Wen Jun Yang ◽  
Jian Li ◽  
Zhong Wu Jin
Keyword(s):  
Water Quality ◽  
Suspended Sediment ◽  
Langmuir Equation ◽  
Three Gorges Project ◽  
Phosphorus Adsorption ◽  
The Three Gorges ◽  
Xiangxi River ◽  
The Three Gorges Project ◽  
Adsorption Desorption

These years the water quality deteriorated in Xiangxi River (XXR)---one tributary of Yangtze River in the Three Gorges Project reservoir area. Many components existed in XXR such as nutrients, suspended sediment (SS) and phytoplankton. The nutrients containing phosphorus could be adsorbed to the fine SS, which influenced the water quality components cycling obviously. For calculating the concentrations of different forms of phosphates (mainly the dissolved phosphate and particulate phosphate) more precisely, the formula was deduced based on the Langmuir equation and modified Langmuir equation. Then the field observed data were used to validate the deduced formula, which showed that the deduced formula can calculate the concentrations well. The formula could be applied for the water quality or ecological modeling, and also provide more information for water quality improvement. Keywords: Suspended sediment; Phosphorus; Adsorption-desorption; Xiangxi River

In Situ Tests on Creep Behavior of Rock Mass with Joint or Shearing Zone in Foundation of Large-Scale Hydroelectric Projects

2004 ◽  
Vol 261-263 ◽  
pp. 1097-1102 ◽  
Author(s):  
Jian Liu ◽  
Xia Ting Feng ◽  
Xiu Li Ding ◽  
Huo Ming Zhou
Keyword(s):  
Rock Mass ◽  
Creep Behavior ◽  
Large Scale ◽  
Time Dependent ◽  
Three Gorges Project ◽  
Three Gorges ◽  
The Three Gorges ◽  
The Three Gorges Project

The time-dependent behavior of rock mass, which is generally governed by joints and shearing zones, is of great significance for engineering design and prediction of long-term deformation and stability. In situ creep test is a more effective method than laboratory test in characterizing the creep behavior of rock mass with joint or shearing zone due to the complexity of field conditions. A series of in situ creep tests on granite with joint at the shiplock area of the Three-Gorges Project and basalt with shearing zone at the right abutment of the Xiluodu Project were performed in this study. Based on the test results, the stress-displacement-time responses of the joints and basalt are analyzed, and their time-dependent constitutive model and model coefficients are given, which is crucial for the design to prevent the creep deformations of rock masses from causing the failure of the operation of the shiplock gate at the Three-Gorges Project and long-term stability of the Xiluodu arc dam.

scholarly journals How the Three Gorges Project (TGP) affects local precipitation

2021 ◽  
Author(s):  
Qin Li ◽  
Yulong Zhong ◽  
Xiuguo Liu ◽  
Mengmeng Wang ◽  
Manxing Shi
Keyword(s):  
Three Gorges Project ◽  
Three Gorges ◽  
The Three Gorges ◽  
The Three Gorges Project

scholarly journals Seismic hazard assessment of the Three Gorges Project

2013 ◽  
Vol 4 (2) ◽  
pp. 53-60 ◽  
Author(s):  
Yao Yunsheng ◽  
Wang Qiuliang ◽  
Li Jinggang ◽  
Shen Xueling ◽  
Kong Yuyang
Keyword(s):  
Seismic Hazard ◽  
Hazard Assessment ◽  
Seismic Hazard Assessment ◽  
Three Gorges Project ◽  
Three Gorges ◽  
The Three Gorges ◽  
The Three Gorges Project
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