Field mechanical properties of large section concrete pipes during jacking in fractured moderately weathered siltstone
Tunnelling and Underground Space Technology（2023）
Abstract
•Calculation of vertical earth pressure at the pipe crown in fractured rock mass.•Effect of slurry pressure on jacking force.•Effect of different working conditions on mechanical properties of large section concrete pipe jacking.•Calculation of frictional resistance by effective earth pressure.
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Key words
Pipe jacking,Contact pressure,Slurry pressure,Effective earth pressure,Jacking force,Fractured rock mass
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