A construction method for open-cut vertical framing prefabrication of underground passages
An underground passage and construction method technology, applied in artificial islands, water conservancy projects, underwater structures, etc., can solve the problems of difficult on-site hoisting, lack of hoisting construction space, and heavy weight, so as to reduce engineering construction risks and avoid Unsupported phenomenon, the effect of reducing weight and volume
Active Publication Date: 2019-07-26
SHANGHAI CONSTRUCTION GROUP
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Problems solved by technology
[0004] For the construction of underground passages with narrow construction sites and strict environmental protection requirements, the weight of the segmented prefabricated components of the underground passage structure is still very large, and there is no hoisting construction space, making it difficult to hoist on site
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[0031] In the following, in conjunction with the accompanying drawings and specific embodiments, the method of the present invention for the open-cut vertical framing precast construction of an underground passage will be further described in detail. According to the following description and claims, the advantages and features of the present invention will be clearer. It should be noted that the drawings are in a very simplified form and all use imprecise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. For the convenience of description, the "up" and "down" mentioned below are consistent with the upper and lower directions of the drawings, but this cannot be a limitation of the technical solution of the present invention.
[0032] Combine Figure 1 to Figure 6 To illustrate a method of the present invention for the open-cut vertical framing prefabrication construction of an underground pa...
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The invention discloses an open-cutting vertical amplitude selection prefabricating construction method for an underground passage and aims at solving the problems that the weight of a component prefabricated in a segmentation manner is large, and the on-site hoisting difficulty is large. An underground passage structure is subjected to vertical amplitude selection in advance, and is transversely divided into a plurality of upper segments and lower segments of the underground passage, and the upper segments and the lower segments are subjected to factory-like prefabricating; the lower segments of the underground passage are sequentially ejected in place to be spliced into a lower structure of the underground passage through an ejecting system, and a moving and transporting splicing system is installed in the completed lower structure of the underground passage to perform splicing construction of the upper segments of the underground passage; a vertical adjusting mechanism and a horizontal adjusting mechanism are installed between a supporting body and the upper segments of the underground passage, and the upper segments of the underground passage are stably fixed to the supporting body; and the upper segments of the underground passage are transported to preset positions sequentially by means of a self-walking type slide rail installed at the bottom of the supporting body, the upper segments of the underground passage are sequentially transported to preset positions and spliced with the corresponding lower segments of the underground passage in place, and the upper segments of the underground passage and the lower segments of the underground passage are connected into the overall underground passage structure.
Description
Technical field [0001] The invention relates to the technical field of underground engineering construction, in particular to a vertical framing prefabrication construction method of an open-cut underground passage. Background technique [0002] With the continuous advancement of urbanization, the increasing traffic congestion in large and medium-sized cities has become more and more serious, and the construction of underground passages will surely occupy an important position in the future construction of cities. At present, the construction of long-distance underground passages in cities mainly adopts the open cut method, which mainly includes two stages: earth excavation layer by layer and structure in sequence. Since the traditional underground passage structure mainly adopts the method of pouring from bottom to top on site, it has the following drawbacks: 1. Poor construction conditions of concrete pouring on site, low construction accuracy, and serious environmental polluti...
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IPC IPC(8): E02D29/05
CPCE02D29/05
Inventor 吴小建张阿晋王新新陈峰军沈蓉沈雯周泉吉孙廉威
Owner SHANGHAI CONSTRUCTION GROUP