CN108596376A - Novel method for predicting surface subsidence caused by subway tunnel construction - Google Patents
Novel method for predicting surface subsidence caused by subway tunnel construction Download PDFInfo
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- CN108596376A CN108596376A CN201810337482.8A CN201810337482A CN108596376A CN 108596376 A CN108596376 A CN 108596376A CN 201810337482 A CN201810337482 A CN 201810337482A CN 108596376 A CN108596376 A CN 108596376A
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- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000010276 construction Methods 0.000 title abstract description 7
- 238000004364 calculation method Methods 0.000 claims abstract description 4
- 238000012876 topography Methods 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000009977 dual effect Effects 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/08—Construction
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Abstract
The invention discloses a novel method for predicting surface subsidence caused by subway tunnel construction, which comprises the steps of judging the bias degree of a subway tunnel, reflecting the bias degree of the tunnel through the deflection degree of maximum main stress, defining the deflection angle of the maximum main stress as a bias coefficient, and calculating to obtain the center offset distance of a surface subsider; analyzing the ground surface settlement factor in subway construction, superposing the distortion and deviation of a ground surface settling tank by the dual influence of a bias terrain and a bias load, and establishing a ground surface settlement calculation model; calculating the influence of the bias terrain to obtain the settlement rule of any point of the stratum under the influence of the bias terrain; calculating the influence of the bias load to obtain the settlement rule of any point of the stratum under the influence of the bias load; and superposing the action results of the bias terrain and the bias load, substituting the action results into related parameters of the subway tunnel, establishing a predicted settlement curve, and predicting the ground surface settlement rule of the subway tunnel. The method has the beneficial effect that the tunnel settlement rule in the subway construction can be accurately predicted.
Description
Technical field
The invention belongs to technical field of tunnel construction, it is related to based on limited domain of holomorphy two-dimension elastic boundary value problem parsing solution
A kind of new constructing metro tunnel causes Ground surface settlement method.
Background technology
The current Urban Underground rail traffic Large scale construction in China brings urban surface sedimentation geological hazards particularly prominent
Go out.However, the changeable Accurate Prediction to ground settlement disaster of urban geology complicated condition brings difficulty.
Invention content
The purpose of the present invention is to provide a kind of new constructing metro tunnels to cause Ground surface settlement method, of the invention
Advantageous effect is can accurately to predict tunnel subsidence rule in subway work.
The technical solution adopted in the present invention is to follow the steps below：
The first step：Subway tunnel bias degree judges, reflects tunnel bias degree by the degree of deflection of maximum principal stress,
Definition maximum principal stress deflection angle is bias coefficient, and ground settlement groove center offset distance is calculated；
Second step：Analyze ground settlement factor in subway work, the distortion of ground settlement slot and deviation by bias landform and
The double influence of Eccentric Load is superimposed, and establishes calculation of ground surface settlement model；
Third walks：The bias influence of topography is calculated, the stratum arbitrary point settlement law under the bias influence of topography is obtained；
4th step：Calculating Eccentric Load influences, and obtains the stratum arbitrary point settlement law under the influence of Eccentric Load；
5th step：Bias landform and Eccentric Load exercising result are superimposed, subway tunnel relevant parameter is substituted into, establishes prediction
Subsidence curve predicts subway Characters in Tunnel Surface Settlement rule.
Specific implementation mode
The present invention is described in detail With reference to embodiment.
The present invention carries out the judgement of subway tunnel bias degree first, reflects that tunnel is inclined by the degree of deflection of maximum principal stress
Pressure degree, definition maximum principal stress deflection angle is bias coefficient, and ground settlement groove center offset distance is calculated；Analysis
Ground settlement factor in subway work, the distortion of ground settlement slot and deviation are folded by the double influence of bias landform and Eccentric Load
Add, establishes calculation of ground surface settlement model；The bias influence of topography is calculated, the stratum arbitrary point sedimentation rule under the bias influence of topography are obtained
Rule；Calculating Eccentric Load influences, and obtains the stratum arbitrary point settlement law under the influence of Eccentric Load；By bias landform and bias lotus
Exercising result superposition is carried, subway tunnel relevant parameter is substituted into, establishes Predicted settlement curve, prediction subway Characters in Tunnel Surface Settlement rule
Rule.
The present invention starts with from multi-source informations such as a variety of rock and soil properties, various factors, various deformation scales, studies subway
Constructing tunnel causes the Exact of the limited domain of holomorphy two-dimension elastic boundary value problem of surrouding rock deformation and ground settlement, establishes ground
The multiple predictors of table sedimentation, and the features such as comprehensive more lithology, multifactor, multiple dimensioned, study the algorithm of ground settlement, with it
The Accurate Prediction for realizing ground settlement in engineering, theories integration is provided for subway tunnel safe construction.
The above is only the better embodiment to the present invention, not makees limit in any form to the present invention
System, every any simple modification that embodiment of above is made according to the technical essence of the invention, equivalent variations and modification,
Belong in the range of technical solution of the present invention.
Claims (1)
1. a kind of new constructing metro tunnel causes Ground surface settlement method, it is characterised in that follow the steps below：
The first step：Subway tunnel bias degree judges, reflects tunnel bias degree, definition by the degree of deflection of maximum principal stress
Maximum principal stress deflection angle is bias coefficient, and ground settlement groove center offset distance is calculated；
Second step：Ground settlement factor in subway work is analyzed, the distortion of ground settlement slot and deviation are by bias landform and bias
The double influence of load is superimposed, and establishes calculation of ground surface settlement model；
Third walks：The bias influence of topography is calculated, the stratum arbitrary point settlement law under the bias influence of topography is obtained；
4th step：Calculating Eccentric Load influences, and obtains the stratum arbitrary point settlement law under the influence of Eccentric Load；
5th step：Bias landform and Eccentric Load exercising result are superimposed, subway tunnel relevant parameter is substituted into, establishes Predicted settlement
Curve predicts subway Characters in Tunnel Surface Settlement rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810337482.8A CN108596376A (en) | 2018-04-16 | 2018-04-16 | Novel method for predicting surface subsidence caused by subway tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810337482.8A CN108596376A (en) | 2018-04-16 | 2018-04-16 | Novel method for predicting surface subsidence caused by subway tunnel construction |
Publications (1)
| Publication Number | Publication Date |
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| CN108596376A true CN108596376A (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810337482.8A Pending CN108596376A (en) | 2018-04-16 | 2018-04-16 | Novel method for predicting surface subsidence caused by subway tunnel construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112989591A (en) * | 2021-03-08 | 2021-06-18 | 北京交通大学 | Track deformation prediction method for frost heaving part of high-speed railway roadbed |
| CN113255037A (en) * | 2021-05-20 | 2021-08-13 | 中国建筑第五工程局有限公司 | Novel estimation method for upward floating amount of double-mode shield tunnel segment in upper soft and lower hard stratum |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104965994A (en) * | 2015-07-17 | 2015-10-07 | 青岛理工大学 | Method for measuring and estimating characteristic parameters of surface subsidence caused by subway tunnel construction |
| CN103310039B (en) * | 2013-05-22 | 2016-01-27 | 青岛理工大学 | Method for detecting influence of underground construction on ground building structure |
| CN106649912A (en) * | 2016-09-06 | 2017-05-10 | 中铁十六局集团北京轨道交通工程建设有限公司 | Settlement prediction method for metro tunnel shield undercrossing existing railway facilities |
| CN107153770A (en) * | 2017-05-16 | 2017-09-12 | 宁波市交通建设工程试验检测中心有限公司 | A kind of Forecasting Methodology of Unevenly-pressured shallow tunnel ground settlement deformation |
-
2018
- 2018-04-16 CN CN201810337482.8A patent/CN108596376A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310039B (en) * | 2013-05-22 | 2016-01-27 | 青岛理工大学 | Method for detecting influence of underground construction on ground building structure |
| CN104965994A (en) * | 2015-07-17 | 2015-10-07 | 青岛理工大学 | Method for measuring and estimating characteristic parameters of surface subsidence caused by subway tunnel construction |
| CN106649912A (en) * | 2016-09-06 | 2017-05-10 | 中铁十六局集团北京轨道交通工程建设有限公司 | Settlement prediction method for metro tunnel shield undercrossing existing railway facilities |
| CN107153770A (en) * | 2017-05-16 | 2017-09-12 | 宁波市交通建设工程试验检测中心有限公司 | A kind of Forecasting Methodology of Unevenly-pressured shallow tunnel ground settlement deformation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112989591A (en) * | 2021-03-08 | 2021-06-18 | 北京交通大学 | Track deformation prediction method for frost heaving part of high-speed railway roadbed |
| CN112989591B (en) * | 2021-03-08 | 2022-01-18 | 北京交通大学 | Track deformation prediction method for frost heaving part of high-speed railway roadbed |
| CN113255037A (en) * | 2021-05-20 | 2021-08-13 | 中国建筑第五工程局有限公司 | Novel estimation method for upward floating amount of double-mode shield tunnel segment in upper soft and lower hard stratum |
| CN113255037B (en) * | 2021-05-20 | 2022-10-21 | 中国建筑第五工程局有限公司 | Method for estimating floating amount of double-mode shield tunnel segment in upper-soft and lower-hard stratum |
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Application publication date: 20180928 |
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