Construction method for controlling two-dimension jacking of large-scale case
A construction method and box technology, applied in the field of large-scale box two-dimensional jacking control construction, can solve the problems of large impact on the surrounding environment of the construction area occupied by the construction, increased difficulty and cost of construction, and large demolition workload, etc., to achieve The effect of reducing the amount of demolition works, ensuring normal operation, and occupying a small construction area
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[0030] The two-dimensional jacking control construction method for a large box body provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0031] Such as Figure 1-Figure 10 As shown, the two-dimensional jacking control construction method for large boxes provided by this implementation includes the following steps in order:
[0032] 1) Determine the number of sections of the large box body 1 according to the overall length and weight of the frame bridge, and prefabricate the required number of large box bodies 1;
[0033] 2) Carry out grouting construction under the railway 2 where the frame bridge needs to be laid, the grouting depth is 1-3.5 meters below the line 2 to 5-8 meters below the bottom plate of the large box 1, and the grouting width is both sides of the large box 1 8-15 meters outside to reinforce the soft soil foundation in the area;
[0034] 3) On the side of the railway 2 w...
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