Title:
SLAB LOWERING CONSTRUCTION METHOD FOR UNDERGROUND STRUCTURE IN REVERSE CONSTRUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/031859
Kind Code:
A1
Abstract:
Disclosed is a slab lowering construction method for an underground structure in a reverse construction method, comprising the following steps: first constructing underground guide grooves and underground diaphragm walls, then constructing upright post piles, installing a crane frame and a crane, and placing precast beam slabs in which each layer is of an integral structure in a superimposed manner and fixing same by means of the crane; and then, sequentially lowering the precast beam slabs layer by layer by means of the crane to complete the construction of all the precast beam slabs. During the lowering process of the precast beam slabs, a plurality of pairs of laser range finders and targets provided on vertically adjacent precast beam slabs monitor whether the precast beam slabs are inclined, and a control terminal controls a servo mechanism of the crane to adjust the lowering speed of the crane, thereby ensuring that the precast beam slabs are lowered stably. According to the construction method, a reverse slab lowering construction technology is combined with a prefabricated construction technology, and therefore, the construction is easy and convenient, and is more efficient, stable and safe, and the construction equality is ensured.
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Inventors:
YU YALEI (CN)
LONG LIBO (CN)
LUO HENG (CN)
LONG LIBO (CN)
LUO HENG (CN)
Application Number:
PCT/CN2020/107259
Publication Date:
February 25, 2021
Filing Date:
August 06, 2020
Export Citation:
Assignee:
SHANGHAI CONSTRUCTION ENG SECOND CONSTRUCTION GROUP CO LTD (CN)
International Classes:
E02D29/045; E02D5/18; E04B5/02
Foreign References:
| CN110792099A | 2020-02-14 | |||
| CN211340848U | 2020-08-25 | |||
| CN105350573A | 2016-02-24 | |||
| CN109235499A | 2019-01-18 | |||
| CN108755762A | 2018-11-06 | |||
| CN110004981A | 2019-07-12 | |||
| KR101118263B1 | 2012-03-20 | |||
| JP2006132219A | 2006-05-25 |
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