A foundation pit support structure and its construction method
A technology for foundation pit support and construction method, which is applied in basic structure engineering, excavation, construction, etc., can solve the problems of long construction period, high support cost, increased engineering cost, etc., and achieves simple construction method and improved support strength. , the effect of saving support costs
Active Publication Date: 2021-12-28
JIANGXI PROVINCE URBAN CONSTR GRP
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Problems solved by technology
[0004] Flat braces are currently widely used in deep foundation pits, but flat braces take up a lot of space in the pit, and the construction period is long, which is not conducive to excavation operations. There are great safety hazards in later demolition, which not only increases the cost of the project, but also is not conducive to environmental protection.
[0005] Diagonal braces are mostly used in super-large foundation pits with central island-style stone caves. However, during construction, it is necessary to excavate in the center of the foundation pit first. The diagonal braces can only be constructed after the floor construction is completed. The procedures are cumbersome and the construction period is long, and later demolition and structural treatment are difficult.
[0006] Reverse anchoring technology is a new technology promoted in recent years. The advantage of reverse anchoring is that the foundation pit is open and open, and the excavation and structure construction are convenient. However, the current reverse anchoring structure has cumbersome construction techniques, long periods, and support higher cost
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[0033] Attached below Figure 1-4 , a specific embodiment of the present invention will be described in detail, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.
[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Rear, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Axial, Radial, Circumferential The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, It is constructed and operated in a particular orientation and is therefore not to be const...
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The invention relates to the technical field of civil engineering support, and discloses a support structure for a foundation pit and a construction method thereof. Filling materials are filled between the pipes, and the steel mesh is located on the outer side of two adjacent reinforced concrete pipes. The pit is located on the outside of the steel mesh, and an inverted U-shaped positioning device is detachably installed between the reinforced concrete pipe and the positioning pit. This foundation pit support structure and its construction method can save support while improving the support strength. Maintenance cost, simple construction process.
Description
technical field [0001] The invention relates to the technical field of civil engineering support, in particular to a foundation pit support structure and a construction method thereof. Background technique [0002] With the increase of urban population, more and more buildings, and the continuous development and utilization of underground space, the foundation pit has the characteristics of large area, deep depth and complex surrounding environment. More and more foundation pit projects require safety, convenience, speed and economy. support technology. [0003] The foundation pit will inevitably cause deformation of the surrounding soil during the excavation process. In order to avoid this situation, a support system will be added to stabilize the safety of the foundation pit in the design and construction of the deep foundation pit. At present, there are three main forms: flat support, Diagonal bracing and reverse anchoring technology. [0004] Flat bracing is currently ...
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IPC IPC(8): E02D17/04E02D19/06
CPCE02D17/04E02D19/06
Inventor 李富荣王政强蔡一飞崔治军李晨曦芦晟杜晟连
Owner JIANGXI PROVINCE URBAN CONSTR GRP