CN107631676A - Just prop up the monitoring method of the relative vertical displacement between two linings in a kind of tunnel - Google Patents
Just prop up the monitoring method of the relative vertical displacement between two linings in a kind of tunnel Download PDFInfo
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- CN107631676A CN107631676A CN201711069333.XA CN201711069333A CN107631676A CN 107631676 A CN107631676 A CN 107631676A CN 201711069333 A CN201711069333 A CN 201711069333A CN 107631676 A CN107631676 A CN 107631676A
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- pvc pipe
- tape measure
- tunnel
- linings
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- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The monitoring method of the relative vertical displacement between two linings is just propped up the invention discloses a kind of tunnel, belongs to Tunnel Excavation Monitoring method and technology field.It the described method comprises the following steps：Step 1：In the smooth loading pvc pipe of tape measure, tape measure one end is stretched out outside pvc pipe and fixed, and the tape measure other end reserves certain length and is used for reading；Step 2：Before Second Lining Construction, the hole greater diameter than pvc pipe diameter is bored perpendicular to preliminary bracing face, then in the pvc pipe vertical fitting hole for installing tape measure and will be anchored；Step 3：Tape measure is filled in pvc pipe, closure pvc pipe reserves one end of tape measure, and block-up position is opened after secondary lining form removal, is then monitored；Step 4：According to L1、L2、A1Calculate tunnel and just prop up the relatively vertical relative displacement between two linings.The method of the present invention more can accurately monitor relative displacement caused by lining cutting twice, while can have the features such as operating efficiency is high, manpower and materials less investment.
Description
Technical field
The monitoring method of the relative vertical displacement between two linings is just propped up present invention relates particularly to a kind of tunnel, belongs to constructing tunnel
Monitoring method technical field.
Background technology
During constructing tunnel, to prevent surrouding rock deformation or caving in, preliminary bracing and secondary lining play important
Effect.From New Austrian Tunneling Method, the active time of Tunnel and secondary lining is entirely different, and secondary lining is as tunnel
The guarantee of road normal operation in the future must have certain safety reservior.Tunnel Second Lining Construction is deformed in Tunnel
This stabilization is carried out afterwards, still, because the factors such as its residing geological environment, excavation and lining construction technique cause two
Soon cracking phenomena occurs after secondary lining construction, and the especially longitudinal crack of Lining Crack is the most dangerous, goes into seriously tunnel-liner and indulges
The tension that liner structure receives disoriented to crack main cause, produce tension the reason for it is a lot, have plenty of knot
The change of structure load, have plenty of foundation bearing capacity deficiency, the causes of cracks that also a kind of engineers and technicians tentatively infer
Precisely due to different parts produce different relative displacements due to different cohesive forces between preliminary bracing and secondary lining, with
Cause to occur relatively growing longitudinal crack in secondary lining surface, this will have a strong impact on the normal service of tunnel structure, jeopardize
The safety of life and property of the people.At present, both at home and abroad to secondary lining and the monitoring taken of preliminary bracing relative displacement
Method still puts a mensuration for traditional, and because secondary lining covers all preliminary bracing, therefore, such a method only can be to two
Monitoring is made in the relative displacement with fixing point of secondary lining cutting, can not make accurate measurement to relative displacement caused by both, so as to
Evaluation to integrally-built stability and security has considerable influence, and need in measurement process to spend substantial amounts of manpower,
Material resources and financial resources, operating efficiency are relatively low.
The content of the invention
Therefore, for the above mentioned problem of prior art, the present invention provides a kind of tunnel and just props up the relatively vertical position between two linings
The monitoring method of shifting.
Specifically, it the described method comprises the following steps：
Step 1：In the smooth loading pvc pipe of tape measure, pvc pipe length is L1, it is outer and solid that pvc pipe is stretched out in tape measure one end
Fixed, the tape measure other end reserves certain length and is used for reading；
Step 2：Before Second Lining Construction, the hole greater diameter than pvc pipe diameter is bored perpendicular to preliminary bracing face, then
It in the pvc pipe vertical fitting hole for installing tape measure and will anchor, recycle ruler to read the pvc pipe length for exposing to preliminary bracing
L2；
Step 3：Tape measure is filled in pvc pipe, closure pvc pipe reserves one end of tape measure, is opened after secondary lining form removal
Block-up position, be then monitored, monitoring reading mode be stretch tape measure along pvc pipe peripheral-edge lower and make sight perpendicular to
Secondary lining inwall carries out reading, reads pvc pipe outer end tape measure reading A1；
Step 4：According to L1、L2、A1Calculate tunnel and just prop up the relatively vertical relative displacement between two linings.
Further, tape measure one end is stretched out outside pvc pipe and fixed specifically, tape measure is stretched out into 50mm patches in the step 1
Fixed on the outside of pvc pipe and with tied silk, fixing end is blocked with foamed glue after installing tape measure.
Further, in the pvc pipe vertical fitting hole for installing tape measure and will be anchored in the step 2 specifically, vertical
Bore greater diameter than pvc pipe diameter 1-2cm, depth 20cm hole, then the pvc pipe for installing tape measure hangs down in preliminary bracing face
Directly insert in the hole and fixed with anchor adhesive.
Further, the step 4 calculation formula specifically,
Tape measure stretches out 50mm and is affixed on outside pvc pipe, and tunnel just props up the relatively vertical relative displacement between two linings
The beneficial effects of the present invention are：The present invention provides the monitoring that a kind of tunnel just props up the relative vertical displacement between two linings
Method, the method more can accurately monitor relative displacement caused by lining cutting twice, while can have operating efficiency height, people
The features such as power material resources less investment.There is important more practical value to China tunnel Fast Construction and construction safety.To study and surveying
The relative displacement between preliminary bracing and secondary lining is measured, theoretical direction is provided in order to avoid the generation in such crack.
Brief description of the drawings：
Fig. 1 is that tape measure fixes schematic diagram in embodiment；
Fig. 2 is two lining construction and installation schematic diagram in embodiment；
Fig. 3 is the displacement schematic diagram calculation in embodiment.
Embodiment
The embodiment of the present invention is illustrated below：
A kind of monitoring method that the relative vertical displacement between two linings is just propped up available for tunnel that the present embodiment proposes can be real
The monitoring of existing preliminary bracing and secondary lining relative displacement.Its main process is as follows：
As shown in figure 1, smooth (the known length L of loading pvc pipe 1 of high-precision moccasin chi 21, unit：Mm in), one
Tape measure fixing end 3 is stretched out 50mm and is affixed on the outside of pvc pipe 1 and is fixed with tied silk 4 by end, and the other end of tape measure 2 reserve certain length, use
In reading tape measure reading.Fixing end foamed glue 5 blocks after installing tape measure 2.
As shown in Fig. 2 before secondary lining 9 is constructed, bored perpendicular to the surface of preliminary bracing 1 greater diameter than pvc pipe diameter
1-2cm depth 20cm or so hole, then it will be fixed in the vertical fitting hole of pvc pipe 1 for installing tape measure 2 and with anchor adhesive 6, then
The length L for the pvc pipe 1 for exposing to preliminary bracing is read using ruler2。
Tape measure 2 is filled in pvc pipe 1, before ensureing that tape measure 2 has enough surplus capacities, blend rubber pad 6 to block pvc pipe 1
End.Rubber blanket 6 is opened after secondary lining form removal, tape measure 2 is stretched and reads the outer end tape measure reading A of pvc pipe 11.Then supervised
Survey.
All tape measure 2 should be stretched per this reading along the peripheral-edge lower of pvc pipe 1 and carries out the vertical inwall of secondary lining 9 of sight
Reading.
The computational methods of lining cutting relative displacement twice：
As shown in Figure 3, it is known that preliminary bracing 8 to the distance of the outer wall of secondary lining 9 is：L2(mm), then relative displacement
Above is the preferred embodiment of the present invention, it is noted that for those skilled in the art,
Under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded as this
The protection domain of invention.
Claims (4)
1. a kind of tunnel just props up the monitoring method of the relative vertical displacement between two linings, it is characterised in that methods described includes following
Step：
Step 1：In the smooth loading pvc pipe of tape measure, pvc pipe length is L1, outside pvc pipe and fixed, skin is stretched out in tape measure one end
The chi other end reserves certain length and is used for reading；
Step 2：Before Second Lining Construction, the hole greater diameter than pvc pipe diameter is bored perpendicular to preliminary bracing face, then will peace
Install in the pvc pipe vertical fitting hole of tape measure and anchor, recycle ruler to read the pvc pipe length L for exposing to preliminary bracing2；
Step 3：Tape measure is filled in pvc pipe, closure pvc pipe reserves one end of tape measure, and closure is opened after secondary lining form removal
Position, then it is monitored, monitoring reading mode is to stretch tape measure along pvc pipe peripheral-edge lower and make sight perpendicular to secondary
Lining cutting inwall carries out reading, reads pvc pipe outer end tape measure reading A1；
Step 4：According to L1、L2、A1Calculate tunnel and just prop up the relatively vertical relative displacement between two linings.
2. tunnel as claimed in claim 1 just props up the monitoring method of the relative vertical displacement between two linings, it is characterised in that described
It is outer and fixed specifically, tape measure stretching 50mm is affixed on the outside of pvc pipe and consolidated with tied silk to stretch out pvc pipe for tape measure one end in step 1
Fixed, fixing end is blocked with foamed glue after installing tape measure.
3. tunnel as claimed in claim 1 just props up the monitoring method of the relative vertical displacement between two linings, it is characterised in that described
In step 2 by the pvc pipe vertical fitting hole for installing tape measure and anchor specifically, perpendicular to preliminary bracing face bore a diameter
More than pvc pipe diameter 1-2cm, depth 20cm hole, in the pvc pipe vertical fitting hole for installing tape measure and anchor adhesive then will be used
It is fixed.
4. tunnel as claimed in claim 1 just props up the monitoring method of the relative vertical displacement between two linings, it is characterised in that described
The calculation formula of step 4 specifically,
Tape measure stretches out 50mm and is affixed on outside pvc pipe, and tunnel just props up the relatively vertical relative displacement between two linings
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711069333.XA CN107631676B (en) | 2017-10-30 | 2017-10-30 | Just prop up the monitoring method of the relative vertical displacement between two linings in a kind of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711069333.XA CN107631676B (en) | 2017-10-30 | 2017-10-30 | Just prop up the monitoring method of the relative vertical displacement between two linings in a kind of tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107631676A true CN107631676A (en) | 2018-01-26 |
| CN107631676B CN107631676B (en) | 2019-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711069333.XA Active CN107631676B (en) | 2017-10-30 | 2017-10-30 | Just prop up the monitoring method of the relative vertical displacement between two linings in a kind of tunnel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112762873A (en) * | 2020-12-29 | 2021-05-07 | 江苏法尔胜光电科技有限公司 | Displacement sensor with embedded body and assembling method thereof |
| CN112857299A (en) * | 2020-12-30 | 2021-05-28 | 江苏法尔胜光电科技有限公司 | Mounting method of displacement sensor for tunnel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04286910A (en) * | 1991-03-15 | 1992-10-12 | Toda Constr Co Ltd | Method and apparatus for automatically measuring in-cavity displacement of tunnel |
| CN101749996A (en) * | 2010-01-12 | 2010-06-23 | 浙江大学 | Soil internal displacement measuring device and measuring method thereof |
| CN101881592A (en) * | 2010-06-17 | 2010-11-10 | 同济大学 | Self-advancing slide rail pendulous ground fissure deformation monitoring device |
| CN102183194A (en) * | 2011-01-26 | 2011-09-14 | 北京工业大学 | Soil body internal horizontal displacement test technology for underground structure vibration table testing |
| JP2011214240A (en) * | 2010-03-31 | 2011-10-27 | Fujita Corp | Device for detection of ground/mountain displacement |
| CN105332739A (en) * | 2015-10-14 | 2016-02-17 | 同济大学 | Tunnel supporting structure stress monitoring device and method |
-
2017
- 2017-10-30 CN CN201711069333.XA patent/CN107631676B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04286910A (en) * | 1991-03-15 | 1992-10-12 | Toda Constr Co Ltd | Method and apparatus for automatically measuring in-cavity displacement of tunnel |
| CN101749996A (en) * | 2010-01-12 | 2010-06-23 | 浙江大学 | Soil internal displacement measuring device and measuring method thereof |
| JP2011214240A (en) * | 2010-03-31 | 2011-10-27 | Fujita Corp | Device for detection of ground/mountain displacement |
| CN101881592A (en) * | 2010-06-17 | 2010-11-10 | 同济大学 | Self-advancing slide rail pendulous ground fissure deformation monitoring device |
| CN102183194A (en) * | 2011-01-26 | 2011-09-14 | 北京工业大学 | Soil body internal horizontal displacement test technology for underground structure vibration table testing |
| CN105332739A (en) * | 2015-10-14 | 2016-02-17 | 同济大学 | Tunnel supporting structure stress monitoring device and method |
Non-Patent Citations (1)
| Title |
|---|
| 孙洋等: "云母片岩隧道二衬开裂特征数值计算研究", 《公路》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112762873A (en) * | 2020-12-29 | 2021-05-07 | 江苏法尔胜光电科技有限公司 | Displacement sensor with embedded body and assembling method thereof |
| CN112857299A (en) * | 2020-12-30 | 2021-05-28 | 江苏法尔胜光电科技有限公司 | Mounting method of displacement sensor for tunnel |
| CN112857299B (en) * | 2020-12-30 | 2022-10-11 | 江苏法尔胜光电科技有限公司 | Mounting method of displacement sensor for tunnel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107631676B (en) | 2019-09-20 |
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