Small-diameter pipe jacking excavation construction end part stability maintaining support suitable for soft stratum
A pipe jacking and caliper technology, which is used in mining equipment, earth-moving drilling, temporary shielding, etc., can solve the problems such as the inability to ensure the safety of construction workers and the existence of potential safety hazards, so as to reduce environmental pollution and road damage. The effect of blocking, saving demolition costs, and facilitating widespread promotion
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[0029] The following is further described in detail through specific implementation methods:
[0030] Such as Figure 1-11 The shown end stability support for small-diameter pipe jacking excavation construction suitable for weak formations includes pipe jacking pipe body 1, stability maintenance shrinkage pipe body 2 connected to the end of pipe jacking pipe body 1 and stability maintenance shrinkage pipe body connected to the end of pipe jacking pipe body 1. The stable rotating steel sheet 3 of 2 ends. The shrinking tube body 2 of Weiwen includes the shrinking tube body I21, the shrinking tube body II22, the shrinking tube body III23 and the shrinking tube body IV24 which are sequentially socketed. There are two chute 25, the number of chute 25 can also be four and the center is symmetrical, and the outer wall of the shrink tube body I21 and the shrink tube body III23 is provided with a through groove at the position corresponding to the chute 25 in the axial direction, and ...
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