Shield head structure for effectively controlling ground surface settlement
A technology of surface subsidence and shield head, which is applied in the field of shield head structure, can solve the problems of surface subsidence and low efficiency, and achieve the effects of improving soil strength, protecting the ecological environment, and reducing the amount of muck
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[0016] The present invention will be further described below.
[0017] Such as figure 1 and figure 2 As shown, the present invention includes a cutter head overall 1, a shield shell I, a shield shell II, a grouting pipe 3 outside the shell, a pressure detection device and a conveying main pipe 7. The cutter head overall 1 is installed on the front end of the shield shell I, and the shield shell The rear end of I is coaxially fixedly connected with the front end of shield shell II;
[0018] Described cutter head overall 1 comprises primary excavation surface 5, cutting surface 10 and secondary excavation surface 6, and described primary excavation surface 5 and secondary excavation surface 6 are parallel to each other, primary excavation surface 5 and secondary excavation surface Excavation surface 6 is annular, and the annulus external diameter of secondary excavation surface 6 is less than the annulus internal diameter of excavation surface 5; The soil mouth 9 is outside ...
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