Abstract
There is extremely strict precision requirement for the lateral breakthrough error of long immersed tunnel in the offshore island and tunnel project, but the point location layout range of the outer plane control network is limited in the artificial island, and the space inside the tunnel is long and narrow, which is not conducive to high-precision through-measurement control. In order to further reduce the influence of the error of the plane control network on the lateral breakthrough error of the immersed tunnel, a mathematical model of the influence of the lateral breakthrough error caused by the orientation direction of the outer control point and the position of the breakthrough point has been established through the theoretical analysis in this study, and the favorable orientation directions and the favorable penetration point are analyzed. It is suggested through simulation analysis that the direction that is as consistent with that from the entrance (outlet) point to the penetration point as possible is as the advantageous orientation, which could minimize the lateral penetration error and ensure high-precision rendezvous and docking of the immersed tunnel. This study is instructive for similar engineering practices.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 41274020
Funding statement: This paper was supported by the National Natural Science Foundation of China (Grant No. 41274020), and also by Beijing Key Laboratory of Urban Spatial Information Engineering of China (Grant No. 2019210).
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Articles in the same Issue
- Frontmatter
- Research Articles
- Theoretical analysis of the influence of plane control network on lateral breakthrough error of long immersed tunnel
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Articles in the same Issue
- Frontmatter
- Research Articles
- Theoretical analysis of the influence of plane control network on lateral breakthrough error of long immersed tunnel
- Predicting displacement of bridge based on CEEMDAN-KELM model using GNSS monitoring data
- Precise point positioning with decimetre accuracy using wide-lane ambiguities and triple-frequency GNSS data
- Evaluation of best-fit terrain elevation of ICESat-2 ATL08 using DGPS surveyed points
- Application of singular spectrum analysis in reconstruction of the annual signal from GRACE
- Precision point positioning with additional baseline vector constraint
- Stochastic modeling for VRS network-based GNSS RTK with residual interpolation uncertainty
- A validated robust and automatic procedure for vibration analysis of bridge structures using MEMS accelerometers
- Review
- Short-term analysis of internal and external CORS clocks
- Research Articles
- Vertical land motion in the Iberian Atlantic coast and its implications for sea level change evaluation