The aged culvert pipes are leaking, they must be overhauled as soon as possible.
The construction of vertical cut-off walls on culvert pipes is the most difficult part in the reinforcement of reservoirs in danger.
The paper analyzes the factors causing the cracks happened during highway culvert pipe precasting, and brings forward the control measures accordingly.
The stress state of the circular culvert pipe under soil pressure at rest is analysed with the photoelastic simulated test of the epoxy resin model frozn.
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