Stepping stair section channel for underground deep large engineering construction and construction method thereof
A technology of engineering construction and construction methods, which is applied to the preparation of building components on site, construction, building construction, etc., can solve the problems of small foundation work surface for trench excavation and inability to use inclined steel pipe fastener ladders, etc., to achieve The effect of unimpeded flow of personnel and no impact on engineering construction
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[0036] Figure 1~5 It is the best embodiment of the present invention, below in conjunction with attached Figure 1~5 The present invention will be further described.
[0037] Refer to attached Figure 1~5 : A kind of underground deep and large engineering construction step ladder passage, including vertical column support frame, horizontal tie joint and platform beam, vertical column support frame includes vertical square tube column 1 and square tube column 1 bottom fixedly connected and prefabricated The positioning steel plate 2 buried in the ground, the top of the square tube column 1 is equipped with a connector, and the vertical multi-layer plug-in assembly is formed through the connector. The platform beams are provided with oblique beams between two adjacent platform beams, and the ladder section 17 is installed through the oblique beams.
[0038] The connectors are a square pipe joint one 3 and a square pipe joint two 4 . Between one side of the vertical column s...
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