Shield tunnel forward design method and system based on BIM and medium
A technology of shield tunneling and design method, which is applied in the direction of tunnel, tunnel lining, calculation, etc., and can solve the problems of lack, large volume, and reduced model accuracy, etc.
Pending Publication Date: 2022-03-25
SINOHYDRO BUREAU 8 CO LTD
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Problems solved by technology
Its work results are based on Revit and Dynamo, but for linear projects such as shield tunnels, which generally have a large volume and involve a large-area coordinate system, Revit lacks support for coordinate systems, and the model accuracy in Revit exceeds a certain volume. Reduced, there are certain defects in the design results
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[0039] Such as figure 1 and figure 2 As shown, the forward design method of shield tunnel based on BIM in this embodiment includes assembling the N+1th ring pipe ring on the shield forward plane ① of the Nth ring pipe ring. When assembling the N+1th ring pipe ring, it includes Determine the fixed space posture and the space angle rotation posture of the N+1th ring pipe ring, and the fixed space posture of the N+1th ring pipe ring is the forward center point ② of the Nth ring shield as the center starting point, and the first The straight line ③ where the normal vector of the plane where the forward direction of the N ring shield is located is the central axis for positioning; the method for determining the angular rotation attitude of the N+1 ring pipe ring includes: determining the Nth Nth based on the number of positioning holes j of the longitudinal splicing of the pipe ring The number of rotatable positions ⑥ of the +1 ring pipe ring is k and satisfies k=j. Among the k t...
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The invention discloses a BIM (Building Information Modeling)-based shield tunnel forward design method and system and a medium, and the BIM-based shield tunnel forward design method comprises the following steps: splicing an (N + 1) th pipe ring on a shield forward plane of an Nth pipe ring, the fixed space attitude of the (N + 1) th pipe ring is positioned by taking the forward center point of the Nth shield ring as the center starting point and taking the straight line of the normal vector of the forward plane of the Nth shield ring as the center axis; the determination of the angle rotation posture of the (N + 1) th ring pipe ring comprises the step of selecting a rotatable position enabling the central axis of the (N + 1) th ring pipe ring to be closer to the three-dimensional center line of the shield from the k rotatable positions. According to the method, the high-precision shield pipe ring model can be obtained, and the optimal position of each ring can be calculated by automatically comparing and selecting the optimal rotation angle in combination with the designed horizontal and longitudinal curves, so that the optimal shield tunnel pipe ring arrangement is designed, and the quality and efficiency of shield tunnel forward design are improved.
Description
technical field [0001] The invention relates to shield tunnel design technology for water conservancy and hydropower and urban rail transit projects, and in particular to a BIM-based shield tunnel forward design method, system and medium. Background technique [0002] With the development of society, more and more shield tunnels are used in water transmission and distribution tunnels and urban rail transit. The shield method is a fully mechanized construction method in the underground excavation method. It is to push the shield machine in the ground, and support the surrounding rock through the shield casing and segments to prevent collapse into the tunnel. A mechanized construction method in which the soil is excavated with a cutting device in front of the excavation face, transported out of the hole by an excavation machine, pushed in by a jack at the rear, and assembled with prefabricated concrete segments to form a tunnel structure. In the process of shield tunneling, t...
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IPC IPC(8): E21D9/14E21D11/08G06T17/05
CPCE21D9/14E21D11/08G06T17/05
Inventor 蔡国辉韩可林徐国强周洪云闫普阳张静邵正峰牛书儒江柳戴小龙
Owner SINOHYDRO BUREAU 8 CO LTD