CN103422867A - Tunnel construction perturbation control method based on digitization - Google Patents
Tunnel construction perturbation control method based on digitization Download PDFInfo
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- CN103422867A CN103422867A CN2013103655212A CN201310365521A CN103422867A CN 103422867 A CN103422867 A CN 103422867A CN 2013103655212 A CN2013103655212 A CN 2013103655212A CN 201310365521 A CN201310365521 A CN 201310365521A CN 103422867 A CN103422867 A CN 103422867A
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Abstract
The invention relates to a tunnel construction perturbation control method based on digitization. The method is used for carrying out perturbation control on tunnel construction running through an opened subway and specifically comprises the following steps of (1) acquiring construction parameters; (2) acquiring monitoring data in real time through signal sensors when running through the opened subway; (3) taking the construction parameters and the monitoring data as input of an image generator, automatically obtaining monitoring images, and transmitting the monitoring images to a control center; (4) judging whether construction perturbation exists or not according to the monitoring images by the control center, correcting the construction parameters in real time and then carrying out construction if the construction perturbation exists, and controlling construction equipment to continue construction according to the set construction parameters if the construction perturbation does not exist. Compared with the prior art, the method has the advantages that the perturbation control on the tunnel construction is realized through monitoring a construction process in real time, and the accuracy and safety of the construction are improved.
Description
Technical field
The present invention relates to a kind of electric power tunnel Construction Control, especially relate to a kind of based on the moving construction control method of digitized tunnel perturbation.
Background technology
The urban electric power tunnel is different from general construction of tunnel, and it builds usually in the city populous, that economy is comparatively flourishing.Not only to consider to build regional engineering geological condition, also to consider tunnel through regional physical geography and social-economic development status, comprise the densely populated degree of urban surface, building distribution, underground utilities and underground existing structure etc.In the situation that the mankind more and more pay close attention to safety and environment protection, the problems of geo-environment along the line that the construction of engineering brings, such as ground settlement etc., caused everybody suitable attention.Need to take the digitlization remote monitoring to the constructing tunnel process, grasp in time the information such as tunnel peripheral ground distortion.The urban electric power tunnel, object of construction production is large, investment is many, construction period is long, relate to the data such as a large amount of constructions and monitoring, these data message amounts are quite huge or even magnanimity, these mass datas are stored in to computer with digitized form, thereby avoid the hardship of loaded down with trivial details file data management.
Emphasis construction through section is different from the common interval section, the construction of city tunnel is more and more stricter to the control of stratum disturbing influence, mainly based on two aspects: the one, the control of earth's surface and deep soil movement, purpose is the normal use that protection earth's surface and deep layer are closed on building; The safety issue of constructing tunnel itself on the other hand.The former is extremely harsh under a lot of conditions, and as the subway tunnel in traversing operation, deformation requirements is controlled at grade; In the high hydraulic pressure that the latter is high in sensitivity or risk is larger, arenaceous stratum, construction disturbance the lighter can cause axis runout, water seepage of tunnel, floating etc., and this can cause unstability, roof fall accident of tunnel excavation face etc. excessive disturbance.Although shield method is the less constructing tunnel engineering method of a kind of soft stratum disturbance, but requiring very under exacting terms, disturbance has the necessity of further dwindling, this carries out meticulous control with regard to requiring to the parameters of shield-tunneling construction, due to the mechanical behavior difference of soil under the moving condition of perturbation, cause the rule of development difference of formation displacement, thereby to being very different under the requirement of execution conditions and normal condition, therefore, adopting the moving construction of perturbation to carry out construction safety controls just very necessary.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of raising working security, construction control information accurately based on the moving construction control method of digitized tunnel perturbation in order to overcome the defect that above-mentioned prior art exists.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of based on the moving construction control method of digitized tunnel perturbation, the method, for to passing through the constructing tunnel that moves subway, carrying out the moving control of perturbation, specifically comprises the following steps:
1) obtain construction parameter;
2) pass through the monitored data while moving subway by the signal transducer Real-time Obtaining;
3) using construction parameter and monitored data as the input of image composer, automatically obtain monitoring image, and be transferred to control centre;
4) control centre judges whether to exist construction disturbance according to monitoring image, if, constructed again after revising in real time construction parameter, if not, with the construction parameter set, control construction equipment and continue construction.
Described construction parameter comprises the shield machine angle of pitch, fltting speed, gross thrust, cutterhead moment of torsion, synchronous grouting amount, the shield structure otch distance apart from through section.
Described monitored data comprises pore water pressure, non-drainage modulus, void ratio, stress path, strain, land movement and temperature.
The described monitoring of monitoring image two dimension figure, 3 D monitoring figure, section of jurisdiction monitoring figure and log sheet.
The described construction disturbance that exists comprises that current construction access road off-design route or land movement exceed setting range.
Described construction equipment comprises shield machine or push-bench.
Compared with prior art, the present invention has the following advantages:
1) the present invention realizes moving control of perturbation of constructing tunnel by the real-time monitoring to work progress, has improved accuracy and the safety of construction;
2) the present invention has carried out real-time monitoring to work progress passing through while moving subway, and various monitored data, construction parameter form monitoring image, make work progress obtain representing in real time, makes smoothly safety pass through and has obtained Information Assurance.
The accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention;
Fig. 2 is that in embodiment, 1#--2# passes through 1 and No. 10 line two-dimensional digital geological section.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment be take technical solution of the present invention and is implemented as prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figure 1, a kind of based on the moving construction control method of digitized tunnel perturbation, the method, for to passing through the constructing tunnel that moves subway, carrying out the moving control of perturbation, specifically comprises the following steps:
1) obtain construction parameter, comprise that the shield machine angle of pitch, fltting speed, gross thrust, cutterhead moment of torsion, synchronous grouting amount, shield structure otch are apart from the distance of through section etc.;
2) pass through the monitored data while moving subway by the signal transducer Real-time Obtaining.Comprise pore water pressure, non-drainage modulus, void ratio, stress path, strain, land movement and temperature etc.;
3) using construction parameter and monitored data as the input of image composer, automatically obtain monitoring image, and be transferred to control centre, the monitoring of monitoring image two dimension figure, 3 D monitoring figure, section of jurisdiction monitoring are schemed and log sheet;
4) control centre judges whether to exist construction disturbance according to monitoring image, if, after revising in real time construction parameter, constructed again, if not, with the construction parameter set, control construction equipment and continue construction, the described construction disturbance that exists comprises that current construction access road off-design route or land movement exceed setting range.
Described construction equipment comprises shield machine or push-bench.
The underground construction perturbation is moving refers to that work progress, to the very little disturbance of rock soil medium generation on every side, to maintain the higher rigidity in stratum and homoeostasis, thereby produces very little stratum deformation.Therefore, it is that the distortion size produced with disturbance is weighed.The moving construction of perturbation generally occur in Deformation control than routine strict many situations.Due under this minimum deformation, engineering practice is found, larger change has occurred in the strategy that the Engineering Control process is taked, the mechanical behavior of rock soil medium also has essential difference simultaneously, the present invention realizes moving control of perturbation of constructing tunnel by the real-time monitoring to work progress, improved accuracy and the safety of construction.
Below with practice of construction control procedure explanation specific embodiment of the invention situation.
One, the moving Line 1 that passes through of the interval perturbation of 1#--2# shield structure
At mileage SK1+571.710 place, below the subway Line 1, pass through, this section is station, subway Line 1 Huang Po South Road～Southern way station running tunnel, runs at present.Be mainly the 4. grey silt clay layer by the residing soil layer in through section subway Line 1 tunnel, the tunnel external diameter is φ 6200mm, be respectively-12.526m of absolute altitude at the bottom of uplink, downlink tunnel structure ,-12.392m, the about 8.8m of top, tunnel thickness of earth covering.
The about 18.3m of projected length (SK1+571.7～SK1+590.0) that power cable engineering 1 bid section 1# active well～2# active well running tunnel and subway Line 1 tunnel are overlapping.The place of passing through plans to build tunnel and subway Line 1 tunnel is 89 ° of obliques, and road gradient in highway tunnel is that 0.507%, two tunnel spacing minimum is 3.0m.
Interval tunnel longitudinal gradient is 5.05 ‰ in this scope, the minimum absolute altitude-18.76m in center, tunnel, the highest absolute altitude approximately-18.36m.The about 18.5m of top, tunnel thickness of earth covering.
The overlapping projected length of electric power tunnel and subway Line 1 is about 18.3m (SK1+571.7～SK1+590.0), 229th～244 rings.
Utilize digital Platform to carry out real-time monitoring during whole passing through, various monitored data, construction parameter are monitored figure, 3 D monitoring figure and section of jurisdiction monitoring figure by two dimension, have obtained representing in real time, make to pass through and obtained Information Assurance safely smoothly.1#--2# pass through 1 and No. 10 line two-dimensional digital log sheet as shown in Figure 2.
Two, moving No. 10 line that passes through of the interval perturbation of 1#--2# shield structure
At mileage SK2+267.464 place, above No. 10 subway/light rail line, pass through, this section, is built when way station～Southern way station running tunnel at present for the No. 10 subway/light rail line horse.Be mainly the 4. grey silt clay layer by the residing soil layer in through section No. 10 subway/light rail line tunnel, the tunnel external diameter is φ 6200mm, be respectively-17.809m of absolute altitude at the bottom of uplink, downlink tunnel structure ,-17.850m, the about 14.6m of top, tunnel thickness of earth covering.
The about 17.4m of projected length (SK2+267.464～SK0+284.864) that power cable engineering 1 bid section 1# active well～2# active well running tunnel and No. 10 subway/light rail line tunnel are overlapping.The place of passing through plans to build tunnel and the No. 10 subway/light rail line tunnel is 98 ° of obliques, and road gradient in highway tunnel is that-0.204%, two tunnel spacing minimums are 2.2m.Interval tunnel longitudinal gradient is 24% in scope, the minimum absolute altitude-6.5m in center, tunnel, the highest absolute altitude approximately-6.25m.The about 6.5m of top, tunnel thickness of earth covering.The overlapping projected length of electric power tunnel and No. 10 subway/light rail line is about 17.4 m (SK2+267.464～SK2+284.864), 810th～825 rings.
Pass through No. 10 line and be on typical and pass through, similar engineering is had to larger reference.
Claims (6)
1. one kind is moved construction control method based on the perturbation of digitized tunnel, it is characterized in that, the method, for to passing through the constructing tunnel that moves subway, carrying out the moving control of perturbation, specifically comprises the following steps:
1) obtain construction parameter;
2) pass through the monitored data while moving subway by the signal transducer Real-time Obtaining;
3) using construction parameter and monitored data as the input of image composer, automatically obtain monitoring image, and be transferred to control centre;
4) control centre judges whether to exist construction disturbance according to monitoring image, if, constructed again after revising in real time construction parameter, if not, with the construction parameter set, control construction equipment and continue construction.
2. according to claim 1 a kind of based on the moving construction control method of digitized tunnel perturbation, it is characterized in that, described construction parameter comprises the shield machine angle of pitch, fltting speed, gross thrust, cutterhead moment of torsion, synchronous grouting amount, the shield structure otch distance apart from through section.
3. according to claim 1 a kind ofly it is characterized in that based on the moving construction control method of digitized tunnel perturbation, described monitored data comprises pore water pressure, non-drainage modulus, void ratio, stress path, strain, land movement and temperature.
4. according to claim 1 a kind ofly it is characterized in that based on the moving construction control method of digitized tunnel perturbation, the described monitoring of monitoring image two dimension figure, 3 D monitoring figure, section of jurisdiction monitoring are schemed and log sheet.
5. according to claim 1 a kind ofly it is characterized in that based on the moving construction control method of digitized tunnel perturbation, the described construction disturbance that exists comprises that current construction access road off-design route or land movement exceed setting range.
6. according to claim 1 a kind ofly it is characterized in that based on the moving construction control method of digitized tunnel perturbation, described construction equipment comprises shield machine or push-bench.
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| CN103790632A (en) * | 2014-01-09 | 2014-05-14 | 华中科技大学 | Subway shield tunnel segment structural stress visual warning device and operating method thereof |
| CN105512411A (en) * | 2015-12-15 | 2016-04-20 | 苏交科集团股份有限公司 | Calculation method of jacking-pipe jacking force based on surrounding rock deformation space-time effect |
| CN105804756A (en) * | 2016-05-16 | 2016-07-27 | 江苏宇隧通隧道装备有限公司 | Disturbance-resistant pipe jacking construction scheme |
| CN109213749A (en) * | 2018-11-07 | 2019-01-15 | 广州瑾诚测绘有限公司 | A kind of method and device of City Buried Pipeline three-dimension monitor model foundation |
| CN109611156A (en) * | 2018-12-28 | 2019-04-12 | 中铁隧道集团三处有限公司 | A kind of monitoring method of overlapping tunnel information-aided construction |
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Cited By (6)
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| CN105804756A (en) * | 2016-05-16 | 2016-07-27 | 江苏宇隧通隧道装备有限公司 | Disturbance-resistant pipe jacking construction scheme |
| CN109213749A (en) * | 2018-11-07 | 2019-01-15 | 广州瑾诚测绘有限公司 | A kind of method and device of City Buried Pipeline three-dimension monitor model foundation |
| CN109611156A (en) * | 2018-12-28 | 2019-04-12 | 中铁隧道集团三处有限公司 | A kind of monitoring method of overlapping tunnel information-aided construction |
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