Starting steel platform for pipe-jacking-method overlapped tunnel and construction method of starting steel platform
A pipe jacking method and steel platform technology, which is applied in tunnels, earthwork drilling, mining equipment, etc., can solve the problems of long construction period and high project cost, and achieve the effect of shortening the construction period and reducing project cost
Active Publication Date: 2021-06-25
SHANGHAI TUNNEL ENG CO LTD +1
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Problems solved by technology
[0005]
In order to overcome the defects in the existing technology, a starting steel platform and its construction method for overlapping tunnels with pipe jacking method are provided to solve the problems of long construction period and high engineering cost in the conventional construction of overlapping pipe jacking tunnels. The problem
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[0034] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0035] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0036] refer to Figure 1 to Figure 6 As shown, the present invention provides a starting steel platform for overlapping tunnels with the pipe jacking method, including: a support frame 1 , a composite platform plate 2 , a counter force backrest 3 and a stop frame 4 .
[0037] In this embodiment,...
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The invention discloses a starting steel platform for a pipe-jacking-method overlapped tunnel and a construction method of the starting steel platform. The platform comprises a bearing frame, a composite platform plate, a counter-force back support and two retaining frames, wherein the bearing frame comprises a plurality of supporting frames which are arranged at intervals in the length direction of top beams on the two opposite sides of a platform layer of a lower tunnel, the supporting frames are vertically arranged, the two opposite ends of each supporting frame are installed on the two top beams respectively, and an inclined strut is connected between every two adjacent supporting frames; the composite platform plate comprises a bottom plate, a top plate and a grid component arranged between the bottom plate and the top plate in a cushioned mode, and the bottom plate is laid on the upper portions of the multiple supporting frames; the counter-force back support is used for supporting the rear end of a pipe jacking machine, poured on the upper portions of the two top beams and supported at the end, away from the receiving end of an upper tunnel, of the composite platform plate; and the bottoms of the two retaining frames are fixedly arranged on the two top plates respectively, the counter-force back support is supported at the rear ends of the retaining frames, and the front ends of the retaining frames are connected to an enclosure structure of the platform layer of the lower tunnel. The starting steel platform solves the problems that in conventional construction of the overlapped pipe-jacking tunnel, the construction period is long, and the engineering cost is high.
Description
technical field [0001] The invention relates to the technical field of urban rail transit construction, in particular to a starting steel platform used for overlapping tunnels with pipe jacking methods and a construction method thereof. Background technique [0002] In order to reduce the significant adverse effects on the normal operation of urban ground transportation and the surrounding environment and structures during the construction of urban rail transit, underground excavation of subway stations has gradually become one of the main development directions of urban rail transit construction. Among them, the pipe jacking method has become the preferred construction method for underground excavation station construction in soft soil areas due to its advantages of high efficiency, environmental protection and safety. [0003] As a place for passengers to board, transfer, and wait for trains, the section of a subway station requires an overlapping relationship between the ...
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IPC IPC(8): E21D9/10E21D9/14E21D9/12
CPCE21D9/10E21D9/14E21D9/12Y02E10/20
Inventor 卢康明王金一黄德中蒋健邱龑许立斌陈旭光李瑞朱健陈培新王未墨王帮由周依军寇晓勇
Owner SHANGHAI TUNNEL ENG CO LTD