Construction method of split start of shield machine in narrow space
A construction method and split-start technology, applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of the narrow net width of the starting station structure and the inability of the vehicle frame to pass through the station smoothly as a whole, so as to reduce the number of reconstructions and The effect of connecting length and shortening construction period
Active Publication Date: 2017-12-19
CR10BG NO 3 CONSTR
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[0002] During the construction of Hefei Metro Line 1, Gedadian Station is an island-type platform station, which is constructed by the open-cut method. Due to the narrow net width of the departure station structure (the net width from the side wall to the column of the station is only 4.1m, the shield machine station net width 4.5m), the frame cannot pass through the station as a whole
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[0009] In order to further describe the split starting construction method of the small space shield machine of the present invention, it will be further described below in conjunction with the accompanying drawings.
[0010] see figure 1 As shown, a split starting construction method of the shield machine in a small space, the left and right sides of the No. 1, No. 2, No. 3, and No. 5 trolleys of the shield machine are disassembled, and they correspond to the pre-made empty trolleys respectively. Assembled, the frame width of the shield machine was changed from 4.5m to 3.8m, and then hoisted into the underground for assembly in order, and the remaining auxiliary trolleys were placed on the ground near the starting well, and then the pipes between the trolleys were connected. After the shield machine has been debugged, the start is started. After the 40 rings (60m) of the shield machine start are completed, the upper half of the negative ring segment is removed, and the trolle...
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The invention relates to a split-starting construction method of a shield machine in a narrow space, and relates to the field of civil engineering. Disassemble the left and right sides of No. 1, No. 2, No. 3, and No. 5 trolleys of the shield machine, and assemble them respectively with the pre-made empty trolleys, and then hoist them into the underground for assembly in order, and place the remaining auxiliary trolleys in the The ground is close to the starting well, and then the pipelines between the trolleys are connected. After the shield machine is debugged, the starting is carried out. After the 40 rings of the shield machine starting are completed, the upper half of the negative ring segment is removed. The battery car pulls the trolley to the starting well, lifts it to the ground and reassembles it according to the design drawing, and lifts it into the well in the order of No. 1 to No. 7 trolleys, then assembles and debugs underground, and starts again. By transforming the trolleys and reorganizing the sequence of the trolleys, on the premise of ensuring the smooth starting of the shield machine, the number of reconstructions and the connection length of each pipeline were reduced as much as possible. Adopting the construction technology that the shield machine starts separately and the whole ring is unearthed, the construction period is greatly shortened.
Description
technical field [0001] The invention relates to the field of civil engineering, in particular to a split-starting construction method of a shield machine in a narrow space. Background technique [0002] During the construction of Hefei Metro Line 1, Gedadian Station is an island-style platform station, which is constructed by the open-cut method. Due to the narrow net width of the starting station structure (the net width from the side wall to the column of the station is only 4.1m, the shield machine station The clear width is 4.5m), and the frame cannot pass through the station smoothly as a whole. Contents of the invention [0003] Aiming at the technical problems existing in the prior art, the object of the present invention is to provide a split-starting construction method of a shield machine in a narrow space. [0004] In order to achieve the above purpose, the technical solution adopted in the present invention is: a split-starting construction method of a shield ...
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IPC IPC(8): E21D9/06
Inventor 王刚白建军王余德
Owner CR10BG NO 3 CONSTR