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Full-period self-adaptive fuzzy reasoning prediction method for ground surface settlement in EPB tunnel construction

A technology of self-adaptive fuzzing and surface subsidence, applied in inference methods, prediction, neural learning methods, etc., can solve problems such as inability to predict land subsidence in time, self-adaptive fuzzing, etc.

Active Publication Date: 2021-12-07
CHINA CONSTR FIFTH ENG DIV CORP LTD +1
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Problems solved by technology

[0005] In order to solve the problem that the existing technology cannot timely predict the surface settlement process in shield tunneling construction, the present invention proposes a full-period self-adaptive fuzzy reasoning prediction method for surface settlement in EPB tunnel construction

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  • Full-period self-adaptive fuzzy reasoning prediction method for ground surface settlement in EPB tunnel construction
  • Full-period self-adaptive fuzzy reasoning prediction method for ground surface settlement in EPB tunnel construction
  • Full-period self-adaptive fuzzy reasoning prediction method for ground surface settlement in EPB tunnel construction

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Embodiment Construction

[0048] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways than those described here. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0049] A full-cycle self-adaptive fuzzy reasoning prediction method for surface settlement in EPB tunnel construction, such as figure 1 shown, including the following steps:

[0050] Step 1. Division of settlement stages: Based on the characteristics of surface settlement caused by EPB tunnel excavation, the full-cycle surface settlement process is divided into the preceding settlement stage, the advancing settlement stage, the shi...

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Abstract

The invention discloses a full-period self-adaptive fuzzy reasoning prediction method for ground surface settlement in EPB tunnel construction, which comprises the following steps: firstly, analyzing influence factors and settlement characteristics, and dividing the full period of ground surface settlement caused by EPB excavation into stages of advanced settlement, propulsion settlement, shield tail gap settlement, post-construction settlement and the like; the method comprises the following steps: collecting shield tunneling machine construction parameters, soil parameters and ground surface settlement in each stage in historical construction to form a data set, and preprocessing the data set to obtain a training data set; creating an adaptive neural fuzzy inference system of a single pre-estimation subitem in each stage, continuously outputting projects of an adjacent higher level according to an output result of the bottom stage to form a multi-level ANFIS system, training by a training data set to acquire a full-period prediction model of ground surface settlement caused by tunnel construction; and inputting actual construction parameters, soil parameters, construction stages and the like into the prediction model to obtain a tunnel construction full-period settlement curve, thereby realizing ground surface settlement prediction in the shield tunneling process.

Description

technical field [0001] The invention belongs to the field of shield tunnel construction risk control, and in particular relates to a full-period self-adaptive fuzzy reasoning prediction method for surface settlement in EPB tunnel construction. Background technique [0002] With the increasing tension of urban space, the construction of underground structures is in full swing, and subway tunnels are one of the important forms of underground structures. EPB tunnel construction has become an important method of subway construction because of the unique advantages of small disturbance and high excavation efficiency on soft ground. [0003] In the prior art, many scholars have done a lot of research on the tunneling of the shield machine and the settlement of the ground surface. Mair divides the settlement process of shield tunneling into five stages, which are pre-settlement, settlement before excavation, advance settlement, shield tail gap settlement, and subsequent settlement...

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Application Information

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IPC IPC(8): G06Q10/04G06K9/62G06N3/04G06N3/08G06N5/04
CPCG06Q10/04G06N5/048G06N3/04G06N3/084G06F18/214
Inventor 雷军张鹏辉彭斌梁冠文钟志全于广明张立衣利伟岳强陈泽
Owner CHINA CONSTR FIFTH ENG DIV CORP LTD
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