Construction method for load underpinning protection of concrete pipe trench under tunnel
A technology for piercing concrete and foamed concrete, which is used in basic structural engineering, construction, and basic structure testing. , to ensure the effect of normal operation
Active Publication Date: 2022-08-09
CHANGYE CONSTR GROUP +1
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Problems solved by technology
If the tunnel route is changed, the length and construction period of the tunnel will be greatly increased, and the difficulty and cost of tunnel construction will be increased. The demolition of the original facilities and rewiring will also prolong the construction period and increase the construction cost. It will also affect the normal use of the original facilities and even the ground. impact on the normal use of buildings and structures and cause more economic losses
Method used
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Embodiment Construction
[0024] In order to better understand the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0025] It should be clear that the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0026] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. As used in the embodiments of this application and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.
[0027] The construction me...
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The invention discloses a construction method for load underpinning and protection of a concrete pipe trench bearing platform under a tunnel, and belongs to the field of building construction engineering. The main steps include: after the construction of the main structure of the tunnel (except for the reserved holes for the support piles), build brick molds between the roof of the tunnel and the ditch cap, then fill the enclosed area of the brick molds with foam concrete in multiple layers, and then Cut off the existing pipe trench support piles. After cutting the piles, pour and seal the reserved holes in the bottom plate and top plate in time. Finally, fill the remaining unfilled area between the bottom of the pipe trench cap and the tunnel top plate with foam concrete layer by layer. During this period, real-time monitoring of the existing pipe trench caps will be carried out, and the monitoring work will run through the whole process of tunnel construction. The method effectively underpins the load of the pipe trench cap, so that the tunnel can safely pass through the pile foundation under the original pipe trench cap while protecting the safe and stable operation of the pipe trench.
Description
technical field [0001] The invention belongs to the field of building construction engineering, and particularly relates to a construction method for load underpinning protection of a concrete pipe trench bearing platform under a tunnel. Background technique [0002] With the rapid construction of my country's cities and the continuous increase of the population, the shortage of urban land resources and the sharp increase of traffic pressure, and the current era is the golden age of underground space development and utilization, rationally develop and utilize urban underground space and build it into an efficient Underground traffic engineering is one of the effective methods to solve urban road traffic problems. With the construction and development of underground passages in various cities, many projects inevitably encounter the problem of intersection between the proposed tunnel and the existing underground pipe trenches and comprehensive pipe corridors. difficult. If th...
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IPC IPC(8): E02D5/64E02D37/00E02D33/00
CPCE02D5/64E02D37/00E02D33/00Y02A30/60
Inventor 康宝沈建海包华孙晓龙章旬立郑凌逶徐亦采谢新宇胡庆红
Owner CHANGYE CONSTR GROUP