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Analysis on Surface Settlement Caused by Soil Pressure in the Chamber of Shield-Tunneling
Soil Pressure in the chamber is one of the important construction parameters. It is very important to set up reasonable soil Pressure in the chamber for controlling the ground settlement, promoting the peed of drift and lowering the cost of drifting. Take some subway tunnel for example, and carry out the 3D finite element simulation. In order to investigate the influence on ground settlement from soil pressure in the chamber, take 15% of the progressive increase in earth pressure to simulate over-balance conditions and also take 15% of the progressive decrease in earth pressure to simulate under-balance conditions. The results indicated that while the soil pressure achieves equilibrium, the swell and the settlement are all small. While over-equilibrium, the swell increases, on the contrary, the settlement increases while under-equilibrium. So, a good control over the soil pressure is one of the most effective therapies for decreasing the ground settlement.
Analysis on Surface Settlement Caused by Soil Pressure in the Chamber of Shield-Tunneling
Soil Pressure in the chamber is one of the important construction parameters. It is very important to set up reasonable soil Pressure in the chamber for controlling the ground settlement, promoting the peed of drift and lowering the cost of drifting. Take some subway tunnel for example, and carry out the 3D finite element simulation. In order to investigate the influence on ground settlement from soil pressure in the chamber, take 15% of the progressive increase in earth pressure to simulate over-balance conditions and also take 15% of the progressive decrease in earth pressure to simulate under-balance conditions. The results indicated that while the soil pressure achieves equilibrium, the swell and the settlement are all small. While over-equilibrium, the swell increases, on the contrary, the settlement increases while under-equilibrium. So, a good control over the soil pressure is one of the most effective therapies for decreasing the ground settlement.
Analysis on Surface Settlement Caused by Soil Pressure in the Chamber of Shield-Tunneling
Sun, Hai-Xia (author) / Zhao, Wen (author) / Zhou, Qi (author) / Zhang, Zhao (author)
2012
4 Seiten
Conference paper
English
Analysis on Surface Settlement Caused by Soil Pressure in the Chamber of Shield-Tunneling
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