Ultra-deep foundation pit supporting method
A deep foundation pit support and foundation pit technology, which is applied in excavation, infrastructure engineering, construction, etc., can solve problems such as inability to meet the needs of ultra-deep foundation pits, achieve both investment cost and bearing capacity, and ensure structural strength and safety , to ensure the effect of construction quality
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[0027] The present invention will be further described below in conjunction with drawings and embodiments.
[0028] figure 1 , 2 Shown: an ultra-deep foundation pit support system includes a single-row three-axis deep-stirred pile water-stop curtain 3, a bored pile 4 and a steel column 5, and the single-row three-axis deep-stirred pile water-stop curtain 3 is lower than the natural ground The surrounding protection is set along the foundation pit 1, the top of the single-row three-axis deep-stirring pile water-stop curtain 3 extends through the steel pipe into the single-row three-axis deep-stirring pile water-stop curtain to pull and press the top plate 16, and multiple bored piles 4 They are arranged at intervals in the foundation pit 1 on the inner side of the water-stop curtain 3 of single-row three-axis deep-stirring piles. In the foundation pit 1 on the inner side of the bored pile 4, the steel column is an angle steel lattice column, and the lower part of the steel co...
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