CN107144490A - Tunnel Second Lining pours monitoring system and monitoring method - Google Patents
Tunnel Second Lining pours monitoring system and monitoring method Download PDFInfo
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- CN107144490A CN107144490A CN201710534548.8A CN201710534548A CN107144490A CN 107144490 A CN107144490 A CN 107144490A CN 201710534548 A CN201710534548 A CN 201710534548A CN 107144490 A CN107144490 A CN 107144490A
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- pours
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000012806 monitoring device Methods 0.000 claims abstract description 10
- 238000005266 casting Methods 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 abstract description 6
- 230000007812 deficiency Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000010586 diagram Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Monitoring system and monitoring method are poured the invention discloses a kind of Tunnel Second Lining, monitoring system includes being arranged in some hydraulically full drainpipes on Tunnel surface, and the drainpipe extruding is arranged between the preliminary bracing after pouring and waterproof layer；Drainpipe one end closing, other end connection capillary drain, the drainpipe is drained to beyond lining cutting pouring area by capillary drain, and the capillary drain is connected with liquid weight or volume monitoring device.Utilize the extrusion drainage monitoring method of the monitoring system, secondary lining concrete can be monitored continuously, comprehensively, in real time pours progress and plumpness, constructional deficiency is eliminated in the process, and monitoring system need not consume the high accuracy such as pressure sensor, expensive sensor, drainpipe only need to be embedded to, consumables cost is low.
Description
Technical field
The invention belongs to tunneling and underground engineering field, and in particular to a kind of Tunnel Second Lining pours monitoring system
And monitoring method.
Background technology
In Tunnel Second Lining concreting process, the problem of three below aspect often occur influences secondary lining
The quality of block.
One is that secondary lining behind come to nothing or leakiness by presence.For the change of operative constraint Tunnel and country rock
Shape, it is ensured that the thickness of secondary lining, secondary lining should be closely connected with preliminary bracing.But in practice of construction, due to concrete gravity
Sink, Concrete in Natural shrinks, pumping pressure is not enough, splash guard paving is hung tension, preliminary bracing and risen and fallen the reason such as excessive, often hair
Raw secondary lining exists behind to come to nothing or uncompacted phenomenon.
Two to be that secondary lining both sides pour progress difference excessive.In order to avoid secondary lining formwork jumbo deforms or moves
Position and influence concrete quality, lining concrete answer both sides alternately pour, progress difference can not be excessive.But both sides are alternately poured
Process is cumbersome, work efficiency is relatively low, if not being subject to strict management and control in practice of construction, both sides often occurs and pour progress differing greatly
Phenomenon, cause lining trolley to deform or shift, when serious the concrete for being not reaching to strength of mould stripping can be caused to become
Shape even ftractures, caved in.
Three be that the secondary lining concreting break period is long.In order to ensure the integrality of lining concrete and uniform
Property, lining concrete should continuous placing as far as possible, the presetting period of concrete is not to be exceeded in the break period.But in practice of construction
In, usually mix and stir, transport and pump due to concrete in the problem of, cause concreting to be interrupted.Once the break period is long,
First pouring concrete may be solidified, isolates, be layered, and lining cutting globality is adversely affected, and easily cause seepage etc.
Problem.
It is necessary that monitor closely is carried out to Tunnel Second Lining casting process in order to avoid above mentioned problem.Yet with
The limitation of Tunnel Second Lining casting method and technique, concrete pours progress and compactness and can not directly observed, at present also
Lack convenient, fast, economic, comprehensive monitoring means.The monitoring means used at present have by embedded two electrodes of vault,
The method for connecting the method for electrode using concrete to monitor vault concrete density, as long as it is disadvantageous in that two electricity
Pole position is contacted with concrete, and circuit will be connected, thus whether the concrete that can not reflect between two electrodes is closely knit.If
Pressure sensor monitoring is buried behind in secondary lining, certainly will lay substantial amounts of sensor, after lining cutting is poured, these sensors
Can not reclaim mostly, this economically again be difficult to receive.The methods such as other electromagnetic waves, ultrasound or optics are also due to formwork jumbo
The limitation of steel form and be difficult to.In this context, a kind of economic, comprehensive and accurate monitoring tunnel how is provided secondary
The method that lining cutting pours progress and compactness, is a major issue for ensureing Tunnel Second Lining quality urgent need to resolve.
The content of the invention
Present invention solves the technical problem that being：The monitoring problem of presence is poured for secondary lining in existing tunnel, is carried
Monitoring system and monitoring method are poured for a kind of Tunnel Second Lining, economic, comprehensive and accurate monitoring Tunnel Second Lining is poured
Progress and compactness.
The present invention adopts the following technical scheme that realization：
Tunnel Second Lining pours monitoring system, including is arranged in some hydraulically full rows on Tunnel surface
Water pipe 5, the drainpipe 5 is set between preliminary bracing surface and waterproof layer 4；
The one end of drainpipe 5 closing, other end connection capillary drain 6, the drainpipe 5 passes through capillary drain 6
It is drained to beyond lining cutting pouring area, the capillary drain 6 is connected with liquid weight or volume monitoring device.
Further, the capillary drain 6 is provided with capillary passive valve 7.
As a preferred embodiment of the present invention, the drainpipe 5 on the surface of Tunnel in circumferentially distributed,
The surface of Tunnel longitudinal direction diverse location sets some groups of drainpipes, and on Tunnel vault surface along vertical
To one group of drainpipe of distribution.
Further, the circumferentially distributed drainpipe is symmetrically arranged to two sections with tunnel axis face, and the drainpipe connects
The capillary drain connect is unified by the extraction of Tunnel vault surface.
As another preferred scheme of the present invention, if the drainpipe 5 on Tunnel surface along genesis analysis
Dry group drainpipe.
Further, it is equally spaced between the adjacent drainpipe, the capillary drain of drainpipe connection is from institute
There is same one end of drainpipe is unified to draw.
In the present invention, the drainpipe protrudes from the surface setting of Tunnel completely, and fixed by snap
On Tunnel surface.
Monitoring method is poured the invention also discloses a kind of Tunnel Second Lining, it uses above-mentioned Tunnel Second Lining to pour
Monitoring system is built, following steps are specifically included：
The first step, the drainpipe that will be filled with liquid is fixed in the way of circumferentially distributed, genesis analysis or both is combined
On the surface of Tunnel, and write down the rated weight or volume of liquid filling body inside drainpipe；
Second step, the capillary drain of drainpipe is connected to outside lining cutting pouring area, is monitored with liquid weight or volume
Device is connected；
3rd step, carries out two and serves as a contrast concreting, and two lining concrete after pouring extrude the liquid in drainpipe to liquid
Body weight or volume monitoring device, the actual weight or volume of liquid are discharged by determining, with corresponding draining in every group of drainpipe
The nominal fluid weight or volume of pipe is contrasted；If both data are identical, the corresponding two linings casting area of the drainpipe
Lining quality is qualified, if the liquid actual weight or volume of discharge are less than rated weight or volume, this group of drainpipe correspondence
Lining cutting region exist pour uncompacted problem.
Further, can also be according to the liquid weight discharged in drainpipe in two lining concreting processes of the 3rd step
The height for speculating that lining cutting is poured is changed stepwise in amount or volume.
Present invention embedment between Tunnel and waterproof layer fills the drainpipe of liquid (preferably water), passes through monitoring
Drainpipe is discharged the weight or volume of water by the concrete extrusion that two linings are poured, and calculate concrete pours height and closely knit journey
Degree.Drainpipe is connected by capillary drain, capillary passive valve with liquid weight or volume monitoring device, can the row of grasp at any time
The displacement of water pipe, so that grasping concrete at any time pours progress and compactness.Between Tunnel and waterproof layer
Circumferentially disposed drainpipe, can monitor and record in real time the height that pours of secondary lining concrete, whether assay both sides symmetrical,
Continuous placing.Drainpipe is longitudinally arranged between tunnel vault preliminary bracing and waterproof layer, whole two linings vault can be monitored in real time
Whether concreting is full, closely knit.
The present invention's has the advantages that：
1) Tunnel Second Lining casting process can be monitored secondary continuously, comprehensively, in real time by extrusion drainage monitoring method
Lining concrete pours progress and plumpness, and constructional deficiency is eliminated in the process.
2) the extrusion drainage monitoring system of Tunnel Second Lining casting process, it is not necessary to consume pressure sensor etc. high-precision
Degree, expensive sensor, only need to be embedded to drainpipe, consumables cost is low.
From the above mentioned, Tunnel Second Lining of the invention pours monitoring system and monitoring method is a kind of economy, Quan Mianhe
Accurate measurements Tunnel Second Lining pours the technical scheme of progress and compactness, and can be widely popularized during practice of construction should
With.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Brief description of the drawings
Fig. 1 is the schematic diagram that embodiment one is monitored in Tunnel Second Lining casting process by extrusion drainage.
Fig. 2 is the drainpipe connection diagram in embodiment one.
Fig. 3 is drainpipe status schematic diagram before two lining concretings in embodiment one.
Drainpipe status schematic diagram when Fig. 4 comes to nothing to exist after two lining concretings in embodiment one.
Fig. 5 is that the drainpipe in embodiment one uses the schematic diagram that ring and vault longitudinal combination are arranged.
Fig. 6 is that embodiment one monitors two schematic diagrames for serving as a contrast concreting height.
Fig. 7 is the drainpipe in embodiment two all using the schematic diagram being longitudinally arranged.
Label in figure:1- has poured into a mould two lining concrete, and 2- waits to pour two lining concrete, 3- preliminary bracings, 4- waterproof layers, 5-
Drainpipe, 6- capillary drains, 7- capillary passive valves, 8- monitoring weight devices, 9- residual water cavities, 10- lining concrete top surfaces.
Embodiment
Embodiment one
Referring to Fig. 1 to Fig. 5, it is illustrated that in Tunnel Second Lining pour monitoring system for the present invention preferred scheme, specifically
Capillary drain 6, capillary passive valve 7 and the monitoring weight device 8 connected including some groups of drainpipes 5 and drainpipe.
As shown in figure 1, before Tunnel Second Lining is poured, burying and filling between the preliminary bracing 3 in tunnel and waterproof layer 4
During the drainpipe 5 of liquid, practice of construction can the directly water filling in drainpipe, in the outside of waterproof layer 4, poured two lining coagulations
Soil 1 will be extruded drainpipe 5, be extruded the water inside drainpipe；And also wait to pour the draining in the region of two lining concrete 2
Pipe 5 will not be crushed.
In order to which the water for the inside for ensureing drainpipe 5 can be completely exhausted out, drainpipe 5 should protrude from tunnel initial-stage branch completely
The surface of shield 3 is set, and drainpipe is fixed on the surface of Tunnel by fixtures such as buckles.
Referring to Fig. 2, drainpipe 5 must be using the pipeline for possessing certain crushing strength, the two lining coagulations that can be poured
Soil pressure is flat, while should be guaranteed that drainpipe will not be because occurring caliber change after water filling in pipeline, it is to avoid measurement data distortion.Draining
One end closing of pipe 5, the other end is supervised by capillary drain 6 and capillary passive valve 7 with the liquid weight beyond lining cutting pouring area
Survey device 8 to be connected, constitute displacement monitoring system.Due to the caliber very little of capillary drain 6, (caliber of usual capillary is less than
1mm), the control of capillary passive valve 7 is added, drainpipe 5 is not in the case where being squeezed, and its internal water will not be arranged automatically
Go out, only when drainpipe 5 is by the two lining concrete extrusion poured, it is passive that the pressure that extruding is produced can force water to wash capillary open
Valve 7, starts draining.In the side wall casting process of two linings, by the water outlet weight change for monitoring drainpipe 5, it is possible to grasp
The progress of the height, i.e. secondary lining of two lining concrete 1 is poured, whether analysis tunnel both sides concrete symmetrically pours.In reality
In, the volume for discharging water can be also monitored by volume monitoring device.On liquid weight or volume monitoring device and
Capillary drain and capillary passive valve, are conventional on the market liquid measure equipment and fluid flow control unit, this area
Technical staff can carry out selection purchase as needed, and the present embodiment is not repeated its structure herein.
Referring to Fig. 3 and Fig. 4, in casting process, when tunnel double-lining concreting is to arch crown part, along tunnel longitudinal direction
Horizontal layout drainpipe 5.If the water of the drainpipe 5 of final vault is completely exhausted out, illustrate in keystone, Tunnel
3 and secondary lining it is completely closely connected, in the absence of cavity.If the water of the drainpipe 5 of final vault is not completely exhausted out, i.e. drainpipe
It is interior to also have residual water cavity 9, then illustrate in keystone, Tunnel 3 and secondary lining can not be completely closely connected, there is sky
Hole.Therefore can monitor tunnel vault whether pour it is closely knit.
Describe the monitoring method of the present embodiment in detail below in conjunction with Fig. 5 and Fig. 6.
First, some groups of drainpipes 5 are subjected to cloth in the way of the ring shown in Fig. 5 and vault longitudinal combination arrangement
Put, specifically, drainpipe 5 is in circumferentially distributed on the surface of Tunnel, in the longitudinal diverse location of Tunnel
Surface sets four groups of drainpipes, and on Tunnel vault surface along one group of drainpipe of genesis analysis.For the ease of ring
To the construction and drainage of the drainpipe of distribution, every group of circumferentially distributed drainpipe is symmetrically arranged to two with tunnel axis face, always
Totally eight circumferentially distributed drainpipes, circumferentially distributed drainpipe bottom lock, then by all circumferentially distributed drainpipes with
And the unified surface by Tunnel vault of capillary drain 6 of the drainpipe connection of vault genesis analysis is drawn and weight
Monitoring device 8 is connected.
Referring to Fig. 6, after two lining concretings are carried out, the actual weight of liquid is discharged in every group of drainpipe by determining
Or volume, contrasted with the nominal fluid weight or volume of corresponding drainpipe；If both data are identical, the drainpipe pair
The two lining casting area lining qualities answered are qualified, if the liquid actual weight or volume of discharge are less than rated weight or volume,
Then the corresponding lining cutting region of this group of drainpipe, which exists, pours uncompacted problem.In addition, can be real-time by monitoring weight device 8
The residing height of lining concrete top surface 10 corresponding to the drainpipe 5 of eight rings is grasped, it is possible thereby to grasp tunnel two in real time
The information such as progress, both sides difference in height that secondary lining cutting is poured., then can be by the row of vault when secondary lining is poured into tunnel vault
It is closely knit whether the monitoring vault of water pipe 5 pours.
Embodiment two
Referring to Fig. 7, and unlike embodiment one, the drainpipe 5 in the present embodiment all lays drainpipe 5 using longitudinal direction
Monitoring scheme, except ring vault longitudinally lay drainpipe 5, can also whole tunnel arch level longitudinally lay drainpipe
5, drainpipe 5 along genesis analysis, is equally spaced on Tunnel surface between adjacent row water pipe, what drainpipe 5 was connected
Same one end of capillary drain from all drainpipes is unified to draw, and so can start draining according to the drainpipe 5 of different height
To judge pouring highly for two lining concrete, while judging the height by the whether whole drainings of drainpipe 5 of different height
Concrete whether pour completely it is closely knit.
Embodiment above describes the general principle and principal character and advantages of the present invention of the present invention, the technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The concrete operating principle of invention, without departing from the spirit and scope of the present invention, the present invention also have various change and changed
Enter, these changes and improvements all fall within the protetion scope of the claimed invention, the claimed scope of the invention is by appended right
Claim and its equivalent thereof.
Claims (9)
1. Tunnel Second Lining pours monitoring system, it is characterised in that：Filled including being arranged in some of Tunnel surface
The drainpipe (5) of full liquid, the drainpipe (5) is arranged between preliminary bracing surface and waterproof layer；
Drainpipe (5) one end closing, other end connection capillary drain (6), the drainpipe (5) passes through capillary drain
(6) it is drained to beyond lining cutting pouring area, the capillary drain (6) is connected with liquid weight or volume monitoring device.
2. Tunnel Second Lining according to claim 1 pours monitoring system, the capillary drain (6) is provided with capillary
Passive valve (7).
3. Tunnel Second Lining according to claim 2 pours monitoring system, the drainpipe (5) is in Tunnel
Surface in circumferentially distributed, some groups of drainpipes are set on the surface of the longitudinal diverse location of Tunnel, and in tunnel
Preliminary bracing vault surface is along one group of drainpipe of genesis analysis.
4. Tunnel Second Lining according to claim 3 pours monitoring system, the circumferentially distributed drainpipe is with tunnel
Axis face is symmetrically arranged to two sections, and the capillary drain of the drainpipe connection is unified to be drawn by Tunnel vault surface
Go out.
5. Tunnel Second Lining according to claim 2 pours monitoring system, the drainpipe (5) is in Tunnel
Surface is along some groups of drainpipes of genesis analysis.
6. Tunnel Second Lining according to claim 5 pours equidistant cloth between monitoring system, the adjacent drainpipe
Put, same one end of capillary drain from all drainpipes of the drainpipe connection is unified to draw.
7. the Tunnel Second Lining according to any one of claim 3-6 pours monitoring system, the drainpipe is completely convex
Surface for Tunnel is set, and fixed by snap on Tunnel surface.
8. Tunnel Second Lining pours monitoring method, it is characterised in that：Poured using the Tunnel Second Lining in claim 1-7
Monitoring system, is comprised the following steps that：
The first step, the drainpipe that will be filled with liquid is fixed on tunnel in the way of circumferentially distributed, genesis analysis or both is combined
The surface of road preliminary bracing, and write down the rated weight or volume of liquid filling body inside drainpipe；
Second step, the capillary drain of drainpipe is connected to outside lining cutting pouring area, with liquid weight or volume monitoring device
Connection；
3rd step, carries out two and serves as a contrast concreting, and two lining concrete after pouring extrude the liquid in drainpipe to liquid weight
Amount or volume monitoring device, the actual weight or volume of liquid are discharged by determining, with corresponding drainpipe in every group of drainpipe
Nominal fluid weight or volume is contrasted；If both data are identical, the corresponding two linings casting area lining cutting of the drainpipe
It is up-to-standard, if the liquid actual weight or volume of discharge are less than rated weight or volume, the corresponding lining of this group of drainpipe
Block region, which exists, pours uncompacted problem.
9. pouring monitoring method according to the Tunnel Second Lining that claim 8 is above-mentioned, two in the 3rd step serve as a contrast concreting
Cheng Zhong, the height for speculating that lining cutting is poured is changed stepwise according to the liquid weight or volume discharged in drainpipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710534548.8A CN107144490B (en) | 2017-07-03 | 2017-07-03 | Tunnel secondary lining pouring monitoring system and monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710534548.8A CN107144490B (en) | 2017-07-03 | 2017-07-03 | Tunnel secondary lining pouring monitoring system and monitoring method |
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| Publication Number | Publication Date |
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| CN107144490A true CN107144490A (en) | 2017-09-08 |
| CN107144490B CN107144490B (en) | 2023-08-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756892A (en) * | 2018-04-03 | 2018-11-06 | 中南大学 | Job platform and its work continuously system and operational method for constructing tunnel |
| CN111398406A (en) * | 2020-04-22 | 2020-07-10 | 中国铁建重工集团股份有限公司 | Filling compactness detection method based on magnetoresistive sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756892A (en) * | 2018-04-03 | 2018-11-06 | 中南大学 | Job platform and its work continuously system and operational method for constructing tunnel |
| CN108756892B (en) * | 2018-04-03 | 2023-08-18 | 中南大学 | Work platform, continuous operation system and continuous operation method for tunnel construction |
| CN111398406A (en) * | 2020-04-22 | 2020-07-10 | 中国铁建重工集团股份有限公司 | Filling compactness detection method based on magnetoresistive sensor |
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