Foundation pit excavation and anti-floating anchor rod construction method based on BIM

Abstract

The foundation pit excavation and anti-floating anchor rod construction method based on BIM comprises the following steps: 1, an excavation model is built through BIM software; 2, in the excavation model building process, the BIM software is used for extracting the volumes of excavation models before and after hollow shearing, and the difference value of the volumes of the excavation models beforeand after hollow shearing is the excavated earthwork amount; 3, elevation data of the anti-floating anchor rod is summarized; a pre-designed anti-floating anchor rod plane positioning graph is introduced into the BIM software, the anti-floating anchor rod plane positioning graph correspondingly overlaps with the excavation model, the position of the anti-floating anchor rod on the excavation model is determined, elevation marking on the anti-floating anchor rod is performed by the BIM software, and the elevation marking data is summarized and integrated into an EXCLE table; 4, after elevationmarking of the anti-floating anchor rod is completed, a CAD two-dimensional graph and a three-dimensional visualization model graph of the foundation pit model are generated in a segmented mode so asto guide construction; and 5, on-site construction is carried out. The construction quality and the construction period are greatly improved, the rough management mode of the site is changed, and standardized and refined construction is achieved.

Description

technical field [0001] The invention relates to the technical field of foundation construction, in particular to a BIM-based foundation pit excavation and anti-floating bolt construction method. Background technique [0002] The combination of raft foundations and anti-floating anchors has become the mainstream form in places with large volumes and high groundwater levels. However, there are many sumps on rafts and elevator foundation pits, which require slope excavation, and the slope of the foundation pit Intersecting each other and criss-crossing each other, causing great difficulty to excavation on site, it is easy to have over-excavation and under-excavation, and problems are frequently encountered during the construction process; the quality of raft slabs and the control of concrete dosage bring great difficulty. [0003] And according to the conventional design, anti-floating anchors will not be installed on the slope of the foundation pit, but for some designs where...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a BIM-based foundation pit excavation and anti-floating bolt construction method, to solve the technical problems of the prior art that artificially calculating the anchor bolt elevation is difficult, the workload is large and error-prone; and the prior art construction efficiency is low , the problem of high construction cost

Images