Numerical Analysis of Pipelines Settlement Induced by Tunneling

Zhang, Kunyong; Torres, Jose Luis Chavez; Zang, ZhenJun

doi:10.1155/2019/4761904

Cited by 10 publications

(6 citation statements)

References 35 publications

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“…(2) Use cross-validation to evaluate the performance of the model to ensure its generalization ability on different data sets. (3) Stop training when the model's performance on the validation set no longer improves to prevent overfitting. (4) Increasing the amount of training data or introducing some changes through some data enhancement techniques can help improve the generalization ability of the model.…”

Section: Discussion On the Risk Of Overfitting The Pso-lstm Predictio...mentioning

confidence: 99%

“…In 2015, Kouretzis established a pipeline mechanics model for settlement and uplift and provided a simple method for calculating the internal force and strain of the pipeline [2]. In 2019, Kunyong established a model for the settlement of buried pipelines caused by tunnel excavation [3]. They gave the parameter that has the greatest impact on pipeline settlement as the elastic modulus of the soil and established the relationship between ground settlement and the settlement deformation of buried pipelines.…”

Section: Introductionmentioning

confidence: 99%

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Buried Pipeline Collapse Dynamic Evolution Processes and Their Settlement Prediction Based on PSO-LSTM

Zhou,

Teng,

Chi

et al. 2023

Applied Sciences

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Based on the unit life and death technology, the dynamic evolution process of soil loss is considered, and a pipe-soil nonlinear coupling model of buried pipelines passing through the collapse area is constructed. The analysis shows that after the third layer of soil is lost, the existence of the “pipe-soil separation” phenomenon can be confirmed, which then supplements the assumption that “pipe-soil is always in contact” in the elastic foundation beam theory. Calculation of settlement deformation of buried pipelines It needs to be divided into two stages: cooperative deformation and non-cooperative deformation. Taking the settlement prediction of buried pipelines as the goal, the particle swarm algorithm (PSO) was used to optimize the number of neurons, Dropout, and Batch-size in the long short-term memory network (LSTM) structure. The optimization results were 60, 0.001, and 100, respectively. The PSO-LSTM model proposed in this article can accurately describe the dynamic evolution process of buried pipelines and has better prediction accuracy than the modified Gaussian curve method and LSTM neural network model. The use of this model can provide a reference for safety risk management, disaster early warning, and intelligent monitoring when buried pipelines suffer from soil collapse disasters.

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Section: Discussion On the Risk Of Overfitting The Pso-lstm Predictio...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Buried Pipeline Collapse Dynamic Evolution Processes and Their Settlement Prediction Based on PSO-LSTM

Zhou,

Teng,

Chi

et al. 2023

Applied Sciences

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show abstract

“…e closer a retaining wall is to the centerline of the main structure, the greater the surface settlement caused by construction [21][22][23].…”

Section: Tilt Deformationmentioning

confidence: 99%

The Influence of Complex Subway Station Construction on High Retaining Walls and Appropriate Countermeasures

Wang

et al. 2020

Advances in Civil Engineering

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Anzhen Bridge Station of Beijing metro line 12, which adopts a separated-island platform constructed by the undermining method, passes along the retaining wall of the North Third Ring Road. A numerical simulation method is adopted to study the deformation laws of the retaining wall under the influence of station construction. The simulation data show that the affected retaining wall will have large settlement and tilt, and countermeasures must be taken. Four countermeasures are formulated, and their control effects are analyzed. The calculation results show that the combination of anchor cables and waist beams can effectively control the tilt of the retaining wall, but the control effect on the absolute settlement is not obvious. The control effect of isolation piles is better than that of foundation grouting. The joint control method of anchor cables combined with waist beams, isolation piles, and deep hole grouting makes the deformation meet the target, and according to this measure, a concept of joint control aiming at the influence of the “source,” “propagation,” and “object” is proposed, which can provide a reference for similar projects with a great difficulty in deformation control.

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“…rough the Gaussian curve settlement trough theory and finite element simulation, the impact of shield tunneling on ground settlement also has been fully explored [7][8][9]. Some previous researches shed light on the dynamic response of tunnel advancement [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Research on the Prediction Model of Shield Advancement Rate in Sandy Cobble Ground of Beijing

Li²,

Yang

et al. 2021

Advances in Civil Engineering

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The long distance and tight construction period of the earth pressure balance shield tunneling in Beijing sandy cobble ground have a very positive impact on grasping the construction progress and improving the organization efficiency. Based on the real-time monitoring data of on-site earth pressure, cutter head speed, total thrust, screw conveyor speed, and cutter head torque, this study investigated the correlation between the shield advancement rate and the above parameters based on multiple nonlinear regression analysis method, which lay down the foundation of shield advancement rate prediction. The prediction model achieved satisfactory results and was further applied to an airport project. The results show that it is of guiding significance to use multiple regression method to establish shield prediction model and put forward the best advancement parameters to ensure the construction progress. The order in which the four operational parameters affect the advancement rate is total thrust, cutter head torque, screw conveyor speed, and cutter head speed. When the advancement time is greater than 57 min, the average advancement rate and daily progress are highly positively correlated. The research provides a reliable basis for the advancement rate prediction, safety control, and parameter optimization of shield advancement in similar ground.

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Numerical Analysis of Pipelines Settlement Induced by Tunneling

Cited by 10 publications

References 35 publications

Buried Pipeline Collapse Dynamic Evolution Processes and Their Settlement Prediction Based on PSO-LSTM

Buried Pipeline Collapse Dynamic Evolution Processes and Their Settlement Prediction Based on PSO-LSTM

The Influence of Complex Subway Station Construction on High Retaining Walls and Appropriate Countermeasures

Research on the Prediction Model of Shield Advancement Rate in Sandy Cobble Ground of Beijing

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