Drilling and blasting construction tunnel overbreak/underbreak control method based on BIM technology

Abstract

The invention discloses a drilling and blasting construction tunnel overbreak / underbreak control method based on a BIM (Building Information Modeling) technology. The method comprises the following steps of (1) establishing a tunnel excavation contour model by utilizing Revit software; (2) designing blasting parameters in the model; (3) establishing a drilling trolley model in DELMIA software according to the designed blasting parameters; (4) adding attribute information to the excavation contour model, and calculating the quantities of explosives and explosive materials for use; (5) exporting a parameterized model and conducting three-dimensional visual disclosure; (6) conducting field blasting; (7) measuring and calculating the overbreak / underbreak control quantity; and (8) adjusting the parameters and conducting the next cycle. The method has the advantages of high reliability and low cost, and can effectively control tunnel overbreak / underbreak, reduce the construction cost, improve the field construction safety and guarantee the tunnel excavation quality.

Description

technical field [0001] The invention relates to a BIM technology, in particular to a method for controlling over- and under-excavation of a drilling and blasting construction tunnel based on the BIM technology. Background technique [0002] At present, in the tunnel drilling and blasting construction process, due to the complex geological environment of the tunnel, the lack of on-site technology, and inadequate construction management, etc., it is easy to cause poor control of tunnel over-excavation and under-excavation. Due to the quality of tunnel over- and under-excavation control, it directly determines the project cost and tunnel construction safety; in the tunnel drilling and blasting construction over- and under-excavation control process, there are often the following problems: Deviation; 2. The excavation workers cannot fully understand the knowledge of blasting principles, and there are some errors in the operation; 3. The design of the excavation bench is unreason...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of tunnel drilling and blasting construction, due to the complex geological environment of the tunnel, the lack of on-site technology, and inadequate construction management, etc., it is easy to cause poor control of tunnel over-excavation and under-excavation.

Due to the quality of tunnel over- and under-excavation control, it directly determines the project cost and tunnel construction safety; in the tunnel drilling and blasting construction over- and under-excavation control process, there are often the following problems: Deviation; 2. The excavation workers cannot fully understand the knowledge of blasting principles, and there are some errors in the operation; 3. The design of the excavation bench is unreasonable, resulting in the inability to drill holes and charge charges completely according to the design; 4. The calculation and use of materials are not fine enough, Waste and time consuming occur