Construction method for fast restoring road traffic in construction of underground project
A technology for rapid restoration and underground engineering, applied in water conservancy engineering, infrastructure engineering, excavation, etc., can solve problems such as inconvenience of traffic, achieve the effect of fast road traffic, solve conflicting problems, and fast loading and unloading
Inactive Publication Date: 2016-01-20
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP
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Problems solved by technology
[0003] In view of this, the present invention aims to propose a construction method for quickly recovering road traffic in underground engineering construction, so as to solve the inconvenience brought to traffic by the existing slotting and cutting construction method
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[0017] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0018] A construction method for quickly recovering road traffic in underground engineering construction, comprising the following steps:
[0019] 1). Excavate the foundation pit in layers at the design position of the foundation pit, and set up an underground continuous wall along the inner wall of the foundation pit as the main enclosure structure of the foundation pit; use an excavator to clear the existing road surface at the set position of the foundation pit , and then dig a certain depth of earthwork, excavate the underground diaphragm wall installation deep groove along the periphery of the foundation pit. For waterproofing, I-steel joints are used between the various grooves of the underground diaphragm wall. In addition, multiple dewatering wells are drilled in the foundation pit, and water pipes a...
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The invention provides a construction method for fast restoring road traffic in construction of an underground project. The construction method comprises the following steps that (1) a foundation ditch is excavated in a stratified mode in a design position of the foundation ditch; (2) a plurality of middle columns are arranged in the foundation ditch sequentially and longitudinally; (3) cross beams are arranged between continuous walls on the two transverse sides of the foundation ditch, and a plurality of longitudinal beams are arranged between every two neighboring cross beams; (4) a temporary road surface is laid on the longitudinal beams; (5) earth excavation in the foundation ditch; and (6) after the project is finished, a permanent road is laid on the top face of the foundation ditch. The construction method for fast restoring the road traffic in construction of the underground project is conducted according to the basic construction steps in a cover-excavation method, and a standardized, modular and reusable novel temporary road surface system can be established through the cover-excavation method. Fast assembly and disassembly can be achieved. In addition, the traffic is reasonably organized in the whole construction process, so that the purpose of no traffic interruption is achieved, and accordingly the contradictory issue between construction and the existing traffic is solved.
Description
technical field [0001] The invention belongs to the field of underground construction, and in particular relates to a construction method for quickly restoring road surface traffic in underground engineering construction. Background technique [0002] When constructing large-scale underground projects such as subway stations, underground passages or underground parking lots in the bustling downtown area, the slotting and cut-and-cut construction method will cause long-term interference with traffic and affect the city environment, which is often not advisable. The construction period of the excavation method is long, the ground subsidence has a great impact on the safety of adjacent buildings, and the project cost is also high, which is also not the optimal construction method. In this case, first build the roof of the underground structure, and then build other parts of the underground structure safely and smoothly under the cover of the roof, which is the cover-and-excavat...
Claims
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Inventor 宋伟俊齐占国张海顺李向海齐伟智张庆田亮于春红任延龙
Owner CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP