CN104533520A - Tunnel arch crown settlement and peripheral convergence monitoring method - Google Patents
Tunnel arch crown settlement and peripheral convergence monitoring method Download PDFInfo
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- CN104533520A CN104533520A CN201410717505.XA CN201410717505A CN104533520A CN 104533520 A CN104533520 A CN 104533520A CN 201410717505 A CN201410717505 A CN 201410717505A CN 104533520 A CN104533520 A CN 104533520A
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- tunnel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C7/00—Tracing profiles
- G01C7/06—Tracing profiles of cavities, e.g. tunnels
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides a tunnel arch crown settlement and peripheral convergence monitoring method. The tunnel arch crown settlement and peripheral convergence monitoring method comprises installing a rope free of elastic deformation, wherein one end of the rope is fixed on an arch foot arranged at one end of every tunnel section, the other end of the rope is tied on an electric spring scale after calibration, the spring scale is located on an arch foot arranged at the other end of every tunnel section, and the middle portion of rope penetrates a tunnel circular arch; pre-applying the initial force when the monitoring is started to enable an initial reading to be displayed on the electric spring scale, pulling the rope to enable the initial reading on the spring scale to tend to be stable and recording; repeating the above steps and deploying the same way of monitoring on the plurality of sections; performing continuous observation on readings of the electric spring scale during tunnel construction, suspending the construction if the readings are changed, performing repeated observation on the tunnel sections through a full-drilling machine or a three-dimensional laser scanner and performing real-time treatment when problems are found. A tunnel arch crown settlement and peripheral convergence monitoring device is simple, free of model prediction, small in calculation amount and free of technical difficulties and workers can timely find dangerous situations conveniently.
Description
Technical field
The invention belongs to monitoring measurement field, particularly relate to a kind of method monitoring tunnel vault sedimentation and perimeter convergence.
Background technology
The underground engineering constructions such as tunnel are due to features such as its disguise, uncertainty and changeable voltinisms, difficulty of construction is large, easily cause various accident resulting from poor quality of projects, seriously have impact on engineering construction progress and workmanship, constructive technique archives object is that the ess-strain situation of engineering structures is grasped in monitoring in time, carry out information process-, instruct engineering construction, guarantee the long-time stability of construction safety and structure, checking supporting and protection structure effect, accumulation metric data, for informationization designing and construction provide foundation.
In constructing tunnel, the most important task of monitoring measurement is exactly distortion wealth situation that is timely, monitor country rock, carries out monitoring and measurement data analysis, makes early-warning and predicting ahead of time, take the necessary measures as early as possible, avoid the generation of accident.
Carry out have some years although constructing tunnel monitoring measurement is operated in China, in general, in Specific construction, its enforcement and control is all still far from perfect.The development of monitoring measurement work is mainly manifested in the continuous renewal progress of monitoring instrument and monitoring method.The key instrument being currently applied to monitoring measurement comprises: level gauge, total powerstation, steel are hung chi, convergence gauge and be adapted to the pressure cell, strain stress meter etc. of different materials.These instruments be applied in the accuracy that hardware condition just ensure that monitoring measurement work, improve the operability of monitoring measurement, compliance, stability and precision.But chi hung by level gauge, steel, convergence gauge is all not high due to certainty of measurement, comparatively large by tunnel construction infection, relate to equipment more, easily cause construction to hinder to tunnel, and the workloads such as data storage, transmission, process, analysis are large, engineer applied inconvenience.
In most constructing tunnel monitoring measurement, technician adopts total powerstation to carry out at present.Compare other three kinds of instruments, total powerstation have that precision is high, testing is convenient, the transmission side data advantage such as just.And total powerstation can directly be connected with computer, in the computer operating system of close friend, the automatic transmission of monitored data, process, analysis can be realized.The application of total powerstation makes tunnel monitoring measurement work step to step on a new stage, and domesticly in addition takes the lead in applying 3D laser scanner and carries out monitoring measurement work, and new exploration has been made in the more new development of monitoring measurement instrument.But be adopt full brill instrument or 3D laser scanner all to there is plant and instrument costliness, monitor speed slowly, monitor the shortcomings such as delayed.
Summary of the invention
For the deficiencies in the prior art, the present invention proposes a kind of method monitoring tunnel vault sedimentation and perimeter convergence, object be find a kind of easy, economical, effective, the method for supervising that tunnel vault and periphery convert instantaneously can be monitored in time.
The present invention is achieved in that a kind of method monitoring tunnel vault sedimentation and perimeter convergence, comprises the following steps:
(1) tunnel cross-section one end arch springing is fixed in rope one end of no elastic deformation, the other end lies on calibrated electronic spring balance, this spring scale is positioned on tunnel cross-section other end arch springing; Described rope mid portion passes hung nail on the annulus of tunnel circular arch;
(2) when monitoring beginning, first making the reading on electronic spring balance have an initial reading to rope pre-add starting force, then pulling rope, the initial reading on spring scale being tended towards stability, and keeps a record;
(3) repeat respectively to implement above-mentioned steps (1) and (2) on multiple sections of tunnel longitudinal direction;
(4) when constructing tunnel, continue the reading of observation electronic spring balance, change if any reading, suspension of works, recycling full brill instrument or 3D laser scanner carry out repetition measurement to cross section, tunnel, and Timeliness coverage problem also processes.
Preferably, described tunnel circular arch comprises cofferdam and lining cutting around vault, tunnel.
Preferably, in step (4), described construction comprises tunnel excavation, vault slip casting, linning repair.
Compared to the shortcoming and defect of prior art, the present invention has following beneficial effect: apparatus of the present invention are simple, exempt from model prediction, amount of calculation is little, without technical difficulty, be convenient to workman's Timeliness coverage unsafe condition.
Accompanying drawing explanation
Fig. 1 is the theory structure schematic diagram that the present invention monitors the method for tunnel vault sedimentation and perimeter convergence.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Monitor a method for tunnel vault sedimentation and perimeter convergence, as shown in Figure 1, comprise the following steps:
(1) arch springing control point, tunnel cross-section one end A is fixed in rope one end of no elastic deformation, the other end lies on calibrated electronic spring balance, and this spring scale is positioned at tunnel cross-section other end arch springing control point E; Described rope mid portion is through on the annulus of hung nail around vault control point C and tunnel on control point, cofferdam B, D (or lining cutting), and above-mentioned mid portion control point can be encrypted laying according to field condition;
(2) when monitoring beginning, first making the reading on electronic spring balance have an initial reading to rope pre-add starting force, then pulling rope, the initial reading on spring scale being tended towards stability, and records initial reading;
(3) repeat respectively to implement above-mentioned steps (1) and (2) on multiple sections of tunnel longitudinal direction, lay multiple tracks supervising device, interval pitch can be set to 2 ~ 4 meters according to field condition;
(4) carry out in tunnel excavating, vault slip casting, the construction such as linning repair time, continue the reading of observation electronic spring balance, change if any reading, suspension of works, recycling full brill instrument or 3D laser scanner carry out repetition measurement to cross section, tunnel, and Timeliness coverage problem also processes.
When the present invention utilizes tunnel vault sedimentation and perimeter convergence, the geometry in cross section, tunnel can change based on this fact, carry out the sedimentation of monitoring tunnel vault and perimeter convergence by simple geometry principle being applied in constructing tunnel process, design ingenious, device simple, exempt from model prediction, amount of calculation little, without technical difficulty, be convenient to workman's Timeliness coverage unsafe condition.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. monitor a method for tunnel vault sedimentation and perimeter convergence, it is characterized in that, comprise the following steps:
(1) tunnel cross-section one end arch springing is fixed in rope one end of no elastic deformation, the other end lies on calibrated electronic spring balance, this spring scale is positioned on tunnel cross-section other end arch springing; Described rope mid portion passes hung nail on the annulus of tunnel circular arch;
(2) when monitoring beginning, first making the reading on electronic spring balance have an initial reading to rope pre-add starting force, then pulling rope, the initial reading on spring scale being tended towards stability, and keeps a record;
(3) repeat respectively to implement above-mentioned steps (1) and (2) on the multiple section of the longitudinal direction in tunnel;
(4) when constructing tunnel, continue the reading of observation electronic spring balance, change if any reading, suspension of works, recycling full brill instrument or 3D laser scanner carry out repetition measurement to cross section, tunnel, and Timeliness coverage problem also processes.
2. the method for monitoring tunnel vault sedimentation as claimed in claim 1 and perimeter convergence, it is characterized in that, described tunnel circular arch comprises cofferdam and lining cutting around vault, tunnel.
3. the method for monitoring tunnel vault sedimentation as claimed in claim 2 and perimeter convergence, it is characterized in that, in step (4), described construction comprises tunnel excavation, vault slip casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717505.XA CN104533520A (en) | 2014-12-01 | 2014-12-01 | Tunnel arch crown settlement and peripheral convergence monitoring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717505.XA CN104533520A (en) | 2014-12-01 | 2014-12-01 | Tunnel arch crown settlement and peripheral convergence monitoring method |
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| CN104533520A true CN104533520A (en) | 2015-04-22 |
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| CN201410717505.XA Pending CN104533520A (en) | 2014-12-01 | 2014-12-01 | Tunnel arch crown settlement and peripheral convergence monitoring method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489623A (en) * | 2018-11-24 | 2019-03-19 | 上海勘察设计研究院(集团)有限公司 | A method of using three-dimensional laser scanner measurement bridge approach differential settlement |
| CN109505658A (en) * | 2018-12-11 | 2019-03-22 | 云南航天工程物探检测股份有限公司 | Tunnel monitoring and pre-warning system and method based on vault sinking and perimeter convergence |
| CN109882242A (en) * | 2019-03-15 | 2019-06-14 | 青岛理工大学 | Traffic tunnel vault collapse rapid identification method |
| CN112539733A (en) * | 2020-11-20 | 2021-03-23 | 沈阳达能电安全高新产业技术研究院有限公司 | Tunnel settlement monitoring device and tunnel settlement monitoring method |
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| DE3147471A1 (en) * | 1981-12-01 | 1983-07-14 | Maschinenfabrik Korfmann Gmbh, 5810 Witten | Method and device for the suspension of an air duct system |
| DE3619527A1 (en) * | 1986-06-10 | 1987-12-17 | Pohle & Rehling Gmbh | Storage space for diesel fuels |
| CN202348345U (en) * | 2011-12-17 | 2012-07-25 | 中铁十二局集团有限公司 | Automatic alarm system for monitoring tunnel surrounding rocks |
| CN103335596A (en) * | 2013-06-26 | 2013-10-02 | 同济大学 | Tunnel convergence displacement and arch crown settlement measuring device and measuring method |
| CN203443579U (en) * | 2013-09-05 | 2014-02-19 | 中铁上海工程局有限公司 | Tunnel convergence monitoring system based on single side drift method |
| CN103791802A (en) * | 2014-01-27 | 2014-05-14 | 北京工业大学 | Underground tunnel two-side convergence and deformation electronic measurement device and method |
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2014
- 2014-12-01 CN CN201410717505.XA patent/CN104533520A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3147471A1 (en) * | 1981-12-01 | 1983-07-14 | Maschinenfabrik Korfmann Gmbh, 5810 Witten | Method and device for the suspension of an air duct system |
| DE3619527A1 (en) * | 1986-06-10 | 1987-12-17 | Pohle & Rehling Gmbh | Storage space for diesel fuels |
| CN202348345U (en) * | 2011-12-17 | 2012-07-25 | 中铁十二局集团有限公司 | Automatic alarm system for monitoring tunnel surrounding rocks |
| CN103335596A (en) * | 2013-06-26 | 2013-10-02 | 同济大学 | Tunnel convergence displacement and arch crown settlement measuring device and measuring method |
| CN203443579U (en) * | 2013-09-05 | 2014-02-19 | 中铁上海工程局有限公司 | Tunnel convergence monitoring system based on single side drift method |
| CN103791802A (en) * | 2014-01-27 | 2014-05-14 | 北京工业大学 | Underground tunnel two-side convergence and deformation electronic measurement device and method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489623A (en) * | 2018-11-24 | 2019-03-19 | 上海勘察设计研究院(集团)有限公司 | A method of using three-dimensional laser scanner measurement bridge approach differential settlement |
| CN109489623B (en) * | 2018-11-24 | 2021-05-11 | 上海勘察设计研究院(集团)有限公司 | Method for measuring uneven settlement of approach at bridge head by adopting three-dimensional laser scanner |
| CN109505658A (en) * | 2018-12-11 | 2019-03-22 | 云南航天工程物探检测股份有限公司 | Tunnel monitoring and pre-warning system and method based on vault sinking and perimeter convergence |
| CN109882242A (en) * | 2019-03-15 | 2019-06-14 | 青岛理工大学 | Traffic tunnel vault collapse rapid identification method |
| CN112539733A (en) * | 2020-11-20 | 2021-03-23 | 沈阳达能电安全高新产业技术研究院有限公司 | Tunnel settlement monitoring device and tunnel settlement monitoring method |
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Application publication date: 20150422 |