Method for determining construction tunneling parameters of shield tunnel undercrossing water channels

A technology of excavation parameters and shield tunneling, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as inaccurate positioning, errors, and reduced accuracy of simulation results, with good results and remarkable optimization effects , The effect of saving labor and time costs

Active Publication Date: 2018-11-06
CHINA RAILWAY 16 BUREAU GRP BEIJING METRO ENG CONSTR +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, this method also has great defects: ① There is a large error between the parameters used for numerical simulation and the actual construction parameters, and the accuracy of the simulation results is greatly reduced; situation to pinpoint the excavation parameters to be modified

Method used

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  • Method for determining construction tunneling parameters of shield tunnel undercrossing water channels
  • Method for determining construction tunneling parameters of shield tunnel undercrossing water channels
  • Method for determining construction tunneling parameters of shield tunnel undercrossing water channels

Examples

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Embodiment 1

[0042] The invention provides a method for determining construction and excavation parameters of a shield tunnel passing through a waterway, which includes the following operation steps;

[0043] Step S1: Select a test section with the same geological conditions below the target waterway (such as a certain section of waterway, including but not limited to the Maliuzhou Waterway) according to the hydrogeological conditions in the construction section of the entire line, and conduct construction site simulation;

[0044] Step S2: When simulating the construction site of the test section, arrange the monitoring surface and monitoring points, collect and sort out the information of various construction parameters in the simulated construction, so as to determine the preliminary tunneling parameter values ​​during the period when the shield machine passes through the target waterway;

[0045] Step S3: Using spss software, the construction parameter information is divided into two ca...

Embodiment 2

[0062] Embodiment 2 of the present invention provides a method for determining construction and excavation parameters of a shield tunnel passing through a waterway (it is the same as the operation method of Embodiment 1, and it is only an embodiment applied to the Maliuzhou Waterway);

[0063] Embodiment 2 of the present invention takes the shield tunneling machine passing through the Maliuzhou waterway as an example, and introduces a method for determining the construction and excavation parameters of the shield tunnel under the waterway, which includes the following steps (see figure 1 , In addition, there are more operating procedures, please refer to figure 2 ):

[0064] Step S1: In the construction section of the whole line, according to the hydrogeological conditions, select a test section with the same geological conditions below the target waterway (Maliuzhou Waterway) to conduct construction site simulation;

[0065] Step S2: When simulating the construction site of...

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Abstract

The invention discloses a method for determining construction tunneling parameters of shield tunnel undercrossing water channels. The method comprises the following steps of: during construction sitesimulation of a test section, arranging a monitoring surface and a monitoring point, collecting construction parameter information in simulated construction, and determining preliminarily prepared tunneling parameter value; classifying the construction parameter information by utilizing spss software and a clustering analysis method; carrying out numerical simulation on a shield undercrossing water channel according to the obtained preliminarily prepared tunneling parameter value, and correcting a preliminarily prepared tunneling parameter according to the sedimentation of stratum and floatingcondition of duct pieces; aiming at a deformation characteristic of the numerical simulation result, debugging tunneling parameters under corresponding classification conditions on the basis of classification conditions influencing the deformation parameter information of the stratum and the floating parameter information of duct pieces, until the simulation results achieves a preset deformationrequirement, and finally obtained a final parameters for shield undercrossing water channel tunneling of the target water channel. The method is suitable for determining the tunneling parameters of key buildings and complex stratums such as shield tunneling machine undercrossing water channels and the like.

Description

technical field [0001] The invention relates to the technical field of shield tunneling machine construction, in particular to a method for determining construction and excavation parameters of a shield tunnel passing through a waterway. Background technique [0002] In recent years, subway tunnel underpasses have become more and more common in the construction of urban rail transit. Due to the influence of the overlying river, uncontrollable factors and hazards have also increased. Due to the improper selection of tunneling parameters of the shield machine, problems such as formation deformation and segment floating are prone to occur during the process of the tunnel passing through the waterway. [0003] At present, the method of determining the excavation parameters of the shield tunnel under the waterway is: firstly, the approximate range of the excavation parameters is determined based on engineering analogy, and then the excavation parameters of the shield machine are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 黄君田书广黄昌富朱垚锋高永涛崔柔杰李栋栋伍天华李景阳倪金鹏赵鹏飞陶红杰
Owner CHINA RAILWAY 16 BUREAU GRP BEIJING METRO ENG CONSTR
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