Study on Leakage Treatment of Uneven Settlement Cracks in Comprehensive Pipe Gallery
As an important infrastructure of the city,the safety and reliability of the utility tunnel structure is of great significance to the op-eration and construction of the city.Taking the comprehensive pipe gallery project of Fuzhou southeast expressway as an example,the de-formation and stress characteristics of the comprehensive pipe gallery under uneven settlement are analyzed by combining the construction parameters of the pipe gallery and the finite element software.The formation mechanism of the crack leakage of the pipe gallery is expoun-ded,and the corresponding treatment measures are put forward for the leakage problem of uneven settlement cracks.The results show that the loss of soil bearing capacity and the heavy pressure of the pipe gallery are the main reasons for the settlement of the pipe gallery.The loss of differential bearing capacity leads to uneven settlement,resulting in leakage of deformation joints,and finally the stress at the top of the structure is insufficient,resulting in tensile cracks and leakage of the pipe gallery.The construction results show that the targeted treat-ment measures adopted have good effect and meet the waterproofing requirements of underground engineering.
Comprehensive pipe galleryUneven settlementFinite element analysisLeak treatment
NETL
NSTL
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