Inversed construction method for adding basement in existing building
A construction method and basement technology, applied in construction, building maintenance, building construction, etc., can solve the problems of lack of foresight, undesigned underground parking lot, parking difficulty, etc., and achieve reduction of construction waste, low cost, and short construction period Effect
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[0037] The present invention will be further described below in conjunction with specific embodiments.
[0038] The invention provides a reverse construction method for adding a basement to an existing building, which includes the following sequential construction steps:
[0039] Step 1: Carry out on-site positioning and setting out according to the original building design parameters, determine the excavation earthwork slope, the well hole position of the dewatering well, the layout of the borehole pressure grouting pile, and the size of the cap; the borehole pressure grouting pile Straight piles or oblique piles with network structure can be used to arrange around the original foundation cap, and consideration should be given to avoiding the position of foundation beams and columns, and the first floor slab should be removed after the arrangement is completed;
[0040] Step 2: Construction of bored pressure grouting piles;
[0041] The construction of the bored pressure gro...
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