Construction Method of Underpass Pipe Gallery-Lining Door Opening Support
A construction method and doorway technology, applied in artificial islands, earthwork drilling, water conservancy projects, etc., can solve problems such as improper construction, economic losses, social and environmental impacts, and large investment in comprehensive pipe corridors, so as to ensure quality and shorten construction period , Reduce the effect of the process
Active Publication Date: 2021-03-19
CHINA MCC17 GRP
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Problems solved by technology
The construction of the comprehensive pipe gallery itself has a large investment. If the construction is not done properly when crossing important construction nodes such as highways, overpasses, underground rivers, culverts, and protecting the original appearance of the ancient city, it will undoubtedly cause huge economic losses and social and environmental impacts.
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[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0041] see Figure 1-8 Shown, the present invention provides embodiment:
[0042] The construction method of the first-lined door opening support of the under-passing pipe gallery avoids the underground river 6, and includes the following construction steps:
[0043] S1. The surrounding structure of the working well adopts cast-in-place piles and double-pipe water-stop curtain occlusal support construction:
[0044] S11. In order to ensure the stability, bea...
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The invention discloses a construction method for bottom-through pipe gallery lining door support. The construction method comprises the following construction steps that S1, a working well retainingstructure adopts pouring pile and double-pipe water-stop curtain occlusion support construction; S2, pipe shed support is performed; S3, lining door support and construction are performed; and S4, backfill grouting is performed. The construction method is simple and effective, the stability of the down-through pipe gallery lining door support construction and the bearing capacity of the upper soilbody can be ensured, the process is reduced, the construction period is shortened, the cost is saved, and the quality is ensured as well; and the grouting pressure is between 0.3 Mpa and 0.4 Mpa, thepressure interval is just enough to overcome the resistance of pipelines and the resistance of the gap between the soil body and the door support, and the initial support deformation caused by excessive pressure is avoided.
Description
technical field [0001] The invention belongs to the field of civil engineering building construction, and in particular relates to a construction method for underpassing pipe gallery-lining door opening support, which is the key basis for initial support construction. Background technique [0002] With the development of science and technology, more and more construction methods can be selected for the construction of urban underground comprehensive pipe gallery. The construction of the comprehensive pipe corridor itself requires a lot of investment. If the construction is not done properly when crossing important construction nodes such as highways, overpasses, underground rivers, culverts, and protecting the original appearance of the ancient city, it will undoubtedly cause huge economic losses and social and environmental impacts. The underground excavation construction of the comprehensive pipe gallery can effectively solve the above problems, reduce construction costs, ...
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IPC IPC(8): E02D29/045E02D19/18E02D5/36E21D9/00E21D15/00
CPCE02D5/36E02D19/18E02D29/10E21D9/00E21D15/00
Inventor 鲁照香陈胜常发扬杨萍刘超
Owner CHINA MCC17 GRP