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Name of bridge (completed year) | Rock stratum condition in anchorage site |
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Fengdu Yangtze River Bridge (1997) | TTA is adopted on both banks of the bridge. The length of the plug body is 10 m, and the rock mass of the north bank anchorage site is composed of moderately to slightly weathered feldspar quartz sandstone with undeveloped cracks. The surrounding rock of the anchorage site on the south bank is mainly composed of muddy sandstone |
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E’gongyan Bridge (2000) | TTA is adopted on the east bank of the bridge. The length of the plug body is 42 m, and the anchorage site is interbedded with soft to hard silty mudstone and quartz sandstone |
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Zhongxian Yangtze River Bridge (2001) | Compound anchorage is adopted on both banks of the bridge. The length of plug body is 10 m. The strata of anchorage site are mainly composed of sandstone, mudstone, and siltstone, and has simple geological structure |
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Wanzhou Yangtze River Bridge No. 2 (2003) | Compound anchorage is adopted on both banks of the bridge. The length of the plug body is 20 m |
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Jiaolongba Bridge (2005) | TTA is adopted on both banks of the bridge. The length of plug body is 13 m, and the rock mass of anchorage site is mainly composed of basalt with extremely broken rock mass, developed joints, and poor integrity |
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Yichang side of Sidu River Bridge (2009) | TTA is adopted on the bridge. The length of plug body is 40 m, and the rock mass in the anchorage site is hard to relatively hard limestone with less cracks and more calcium muddy filling |
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Balinghe Bridge (2009) | Compound anchorage is adopted on the west bank of the bridge. The length of the plug body is 40 m, and the rock mass in the anchorage site is mainly composed of slightly weathered micronew mudstone and dolomite with relatively broken surrounding rock |
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Nezha Bridge (2010) | TTA is adopted on both banks of the bridge. The length of the plug body is 22 m, and the rock mass in the anchorage site is composed of limestone with stable bedrock. The geological conditions of anchorage site are simple. |
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Aizhai Bridge (2012) | TTA is adopted on the Chadong bank of the bridge. The length of plug body is 35 m, and the rock mass of the anchorage site is composed of breezy layered limestone with developed surface corrosion crack |
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Nanxi Yangtze River Bridge (2008) | Compound anchorage is adopted on the bridge. The length of plug body is 25 m, and the rock mass in the anchorage site is composed of weakly to strongly weathered sandy mudstone with relatively complete rock mass |
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Lancang River Bridge (2013) | TTA is adopted on both banks of the bridge. The length of anchorage plug body is 15 m, and the rock mass of anchorage site is composed of weathered sandstone with broken rock mass |
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Wu River Bridge (2014) | TTA is adopted on the Jinsha bank of the bridge. The length of plug body is 18 m, and the rock mass of anchorage site is composed of limestone with good integrity and high strength |
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Prit Bridge (2015) | TTA is adopted on the Puli bank of the bridge. The length of plug body is 35 m, and the rock mass in the anchorage site is limestone |
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Zhangjiajie Grand Canyon Glass Bridge (2015) | TTA is adopted on the west bank of the bridge. The length of plug body is 13.5 m, and the rock mass of anchorage site is composed of breezy limestone |
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Guanshan Bridge (2015) | TTA is adopted on the island bank of the bridge. The length of plug body is 27 m, and the anchorage site is composed of breezy stream porphyry with dense secondary joint. The rear room is below the sea level, and the plug body may be eroded by water |
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Jijiang Yangtze River Bridge (2016) | TTA is adopted on the north bank of the bridge. The length of plug body is 60 m, and the rock mass of anchorage site is composed of strong to medium-weathered mudstone with complete rock mass and developed local cracks |
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Wanzhou Fuma Yangtze River Bridge (2017) | TTA is adopted on the south bank of the bridge. The length of plug body is 35 m, and the rock mass of anchorage site is interbedded with soft to relatively soft mudstone and sandstone, and broken rock mass |
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Jindong Bridge of Jinsha River (2017) | TTA is adopted on the east bank of the bridge. The length of the plug mass is 40 m, and the rock mass of anchorage site is composed of carbonaceous phyllite with sandstone intercalation |
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Luding Dadu River Bridge (2018) | TTA is adopted on the Ya’an bank of the bridge. The length of the plug body is 39.2 m, and the rock mass of anchorage site is composed of medium to strong weathered monzonitic granite |
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Shuibuya Qingjiang Bridge (2019) | TTA is adopted on both banks of the bridge. The length of the plug bodies is 18 m. The rock mass of anchorage site is limestone and the karst problems are prominent |
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Lixiang Railway Jinsha River Bridge (2019) | TTA is adopted on both banks of the bridge. The length of plug body is 45 m. The rock mass of anchorage site on the Shangri-La bank is mainly composed of thin to medium thick slate and sheet physicochemical basalt with schistatic development. The rock mass of anchorage site on the Lijiang bank is mainly composed of thick moraine |
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Qujiang Landscape Bridge (2019) | TTA is adopted on the north bank of the bridge. The length of plug body is 40 m, and the rock mass of anchorage site is composed of soft to relatively soft weathered sandy mudstone |
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Chishui River Bridge (2019) | TTA is adopted on the Sichuan bank of the bridge. The length of plug body is 78 m, and the rock mass of anchorage site is composed of mudstone and limestone |
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Wujiagang Yangtze River Bridge (expected to be open to traffic in 2020) | TTA is adopted on the north bank of the bridge. The length of plug body is 45 m, and the rock mass of anchorage site is composed of soft rock breeze with good integrity |
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Taihong Yangtze river bridge (expected to be open to traffic in 2020) | TTA is adopted on the north bank of the bridge. The length of plug body is 40 m, and the rock mass of anchorage site is soft to extreme soft mudstone (easy to soften in the presence of water) |
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Yaoxi Yangtze River Bridge (expected to be open to traffic in 2021) | TTA is adopted on the north bank of the bridge. The length of plug body is 40 m, and the anchorage site is composed of medium-weathered quartz sandstone, which is soft rock |
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Jinan Jinsha River Bridge (expected to be open to traffic in 2022) | TTA is adopted on both banks of the bridge. The length of plug body is 40 m, and the rock mass of anchorage site is mainly composed of basalt, which contains multilayer weak intercalation |
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Tsing Lung Bridge (expected to be open to traffic in 2022) | TTA is planned to be adopted on the north bank of the bridge |
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Baotaping Bridge in Fengjie County | The length of plug body is 40 m |
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