Foundation pit protection supporting device for old city construction
A technology for construction and supporting devices, which is applied in construction, infrastructure engineering, sheet pile walls, etc., can solve the problems of high cost, low stability, and difficult construction, and achieve low cost, low construction difficulty, and improved safety sexual effect
Active Publication Date: 2020-06-19
南京地下空间高技术产业研究院有限公司
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Problems solved by technology
[0003] A Chinese patent discloses a protective support structure for foundation pits (authorized announcement number CN204199300U). This patented technology can effectively support and protect foundation pits, but its cost is high, construction is difficult, and its stability is not high.
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[0022] Example: see Figure 1-5 , the present invention provides a technical solution: a foundation pit protective support device for the construction of the old urban area, which includes a bracket assembly, an anchor assembly and a mobile grouting assembly, the bracket assembly is attached to the side wall of the foundation pit and adopts The support rod assembly 2 provides horizontal supporting force to make it tightly against the side wall of the foundation pit; the anchor assembly is used to connect the support assembly and the foundation pit; the mobile grouting assembly is slidably arranged on the top of the support assembly, For grouting reinforcement of multiple strut assemblies and anchor assemblies.
[0023] In this embodiment, the support assembly includes a plurality of horizontal support columns 3 parallel to each other and horizontally distributed on the side walls of the foundation pit, and a plurality of vertical support columns 1 vertically embedded in the bo...
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The invention discloses a foundation pit protection supporting device for old city construction. The device comprises a support assembly, an anchoring assembly and a movable grouting assembly, whereinthe support assembly is attached to the side wall of a foundation pit, supporting rod assemblies are adopted for providing horizontal supporting force for the support assembly so that the support assembly can tightly abut against the side wall of the foundation pit, the stability of the foundation pit is kept, the situation that a building on the outer side of the foundation pit is affected due to deformation and collapse of the foundation pit in the construction process is avoided, the construction and property safety is improved, the construction cost is low, the construction difficulty issmall, the stability is high, and the anchoring assembly is used for connecting the support assembly with the foundation pit; and the movable grouting assembly is arranged at the top of the support assembly in a sliding mode so as to conduct grouting reinforcement on the multiple supporting rod assemblies and the anchoring assembly, and the strength of components is improved.
Description
technical field [0001] The invention relates to the technical field of foundation pit support, in particular to a foundation pit protective support device for construction in old urban areas. Background technique [0002] With the rapid development of our city, the original underground pipe network lines cannot meet the demand. Therefore, the bottom line pipes and lines in the old city need to be transformed, relocated or replaced, and the old city often has a small site, dense surrounding buildings, and a long construction period. , The construction is difficult. When the foundation pit construction is required, it is necessary to ensure the stability of the foundation pit to prevent the deformation and collapse of the foundation pit, which will cause deformation and cracking of the surrounding buildings. Therefore, the foundation pit needs to be supported , to ensure the stability of the foundation pit before backfilling. [0003] Chinese patent discloses a foundation pit...
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IPC IPC(8): E02D17/04E02D5/76E02D15/04
CPCE02D17/04E02D5/765E02D15/04E02D2250/003E02D2600/40
Inventor 苑举卫
Owner 南京地下空间高技术产业研究院有限公司