CN107677400A - A kind of mounting and positioning device of pressure from surrounding rock box - Google Patents
A kind of mounting and positioning device of pressure from surrounding rock box Download PDFInfo
- Publication number
- CN107677400A CN107677400A CN201710895530.0A CN201710895530A CN107677400A CN 107677400 A CN107677400 A CN 107677400A CN 201710895530 A CN201710895530 A CN 201710895530A CN 107677400 A CN107677400 A CN 107677400A
- Authority
- CN
- China
- Prior art keywords
- pressure
- rigid plastics
- fixed plate
- plastics bucket
- pressure cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011435 rock Substances 0.000 title claims abstract description 29
- 229920003023 plastic Polymers 0.000 claims abstract description 37
- 239000004033 plastic Substances 0.000 claims abstract description 37
- 241000276425 Xiphophorus maculatus Species 0.000 claims abstract description 10
- 244000035744 Hura crepitans Species 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 3
- 229920003266 Leaf® Polymers 0.000 claims description 22
- 239000004576 sand Substances 0.000 claims description 13
- 238000000605 extraction Methods 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Revetment (AREA)
Abstract
A kind of mounting and positioning device of pressure from surrounding rock box, belong to engineering monitoring or experiment field of measuring technique.Including top sandbox, lower springs bearing.Top sandbox includes rigid plastics bucket and polybag;Rigid plastics bucket is big for horn-like one end open, and one end open is small;Together with the mouth of polybag and the osculum end of rigid plastics bucket are bonded and sticked;Lower springs bearing includes fixed plate and spring leaf;Fixed plate is annulus platy structure, and center circle annular distance has pressure cell along the diameter both ends of annulus one and inserts groove;The outer radial direction of fixed plate annulus platy structure is provided with the bolt block in multiple strap bolt holes;Fixed plate plate face latches provided with multiple pressure cells, and osculum end and the fixed plate plate face of rigid plastics bucket are fixed together, while pressure cell lock is in rigid plastics bucket;The other end of spring leaf is U-shaped folder piece.Solve the problems, such as that existing installation workload is big, positioning is inaccurate, stress is unreasonable and construction in later period influences during tunnel just lining pressure from surrounding rock box use.
Description
Technical field
The present invention relates to a kind of mounting and positioning device of Tunnel Surrounding Rock Pressure box, belongs to engineering monitoring or experiment e measurement technology
Field.
Background technology
Pressure cell has been widely used in the compression chord measurement of Rock And Soil in Tunnel Engineering pressure from surrounding rock and experiment, existing
It is first to put down the rock mass back side pick when Tunnel Surrounding Rock Pressure box is installed, or finds relatively flat position, by pressure cell stress surface
Towards the position, certain thickness sand is also placed between pressure cell and rock mass, to ensure uniform force.Also need afterwards
The pressure cell back side is fixed on bow member etc..Due to unspecial mounting and positioning device so that live workload compared with
Greatly, alignment error is larger, and position is forbidden, and sand bed can not place so that stress is unreasonable.In addition, carrying out the just lining cutting back of the body
During grouting behind shaft or drift lining, also easily pressure cell is impacted.Above various reasons cause the monitoring of pressure from surrounding rock can not be true
Reflect project situation.Therefore, it is necessary to design a kind of special mounting and positioning device.
The content of the invention
The present invention be in order to solve tunnel just serve as a contrast existing installation workload during pressure from surrounding rock box use is big, positioning not
The problem of standard, stress are unreasonable, and construction in later period influences, invents a kind of mounting and positioning device of Tunnel Surrounding Rock Pressure box.
The technical solution adopted by the present invention is a kind of mounting and positioning device of pressure from surrounding rock box, and it is husky that the device includes top
Case, lower springs bearing.Top sandbox includes rigid plastics bucket (1) and polybag (2);Rigid plastics bucket (1) is horn-like
One end open is big, and one end open is small;Together with the mouth of polybag (2) and the osculum end of rigid plastics bucket (1) are bonded and sticked;
Lower springs bearing includes fixed plate (3) and spring leaf (4);Fixed plate (3) is annulus platy structure, central circular
Hole has pressure cell along the diameter both ends of annulus one and inserts groove (6);The outer radial side of fixed plate (3) annulus platy structure
To the bolt block (8) provided with multiple strap bolt holes;The plate face of fixed plate (3) annulus platy structure is locked provided with multiple pressure cells
Detain (7), the osculum end of rigid plastics bucket (1) and the plate face of fixed plate (3) annulus platy structure are fixed together, while pressure
Box lock (7) is located in rigid plastics bucket (1);One end of spring leaf (4) is provided with bolt hole, the bolt hole and spiral shell of spring leaf (4)
The bolt hole of bolt seat (8) is fixedly connected by bolt (9), and the other end of spring leaf (4) is U-shaped folder piece (10), each bolt block
(8) a corresponding spring leaf (4);Multiple spring leafs (4) are located at the two sides of fixed plate (3) with rigid plastics bucket (1) respectively;It is more
The U-shaped folder piece of individual spring leaf (4) can be fixed on bow member.
Fairlead (5) is provided with the side wall of rigid plastics bucket (1).
The diameter of fixed plate (3) center circle annular distance is less than the diameter of pressure cell;Two pressure cells insert groove (6) radial top
Distance is more than the diameter of pressure cell.
Pressure cell lock is L-type structure.
The implementation process of the device is as follows, will be primarily determined that according to the distance of bow member and country rock measured with husky first, by fine sand
It is poured at the center circle annular distance of the annulus harden structure of fixed plate in polybag (2), pressure cell is inserted into groove from pressure cell
(6) vertically it is put into, then rotational pressure box, pressure cell is placed in rigid plastics bucket (1) while latched (7) by pressure cell
Hold and fix;The lead of pressure cell is drawn from fairlead (5);Afterwards, according to the distance between bow member and country rock, adjustment
The height of spring leaf (4), and along bolt (9) rotating missile reed (4) is surrounded to adapt to bow member, by U-shaped folder piece (10) and bow member
It is fixed;Polybag (2) of the top sandbox equipped with fine sand is withstood on country rock, last anchor leg, position is confirmed, keeps a record.
The fixing bolt (9) and U-shaped folder piece (10) at spring leaf (4) both ends, can adapt to different bow members by rotating
Width, intermediate plate can be both clipped on reinforcing bar, can also be clipped on I-steel.Spring leaf has plasticity simultaneously, can adjust branch
Seat height degree.
Rigid plastics bucket (1) plays a part of polybag (2) of the support equipped with fine sand, rigid plastics bucket (1) inner surface light
Sliding, outer surface has cutting, and cutting is from large port to portlet, and by close to dredging, its wall thickness is also to thickness by thin.Such top
Large port can prolong cutting tear under pressure from surrounding rock, crush, and bottom, which also can guarantee that, higher deformation around under active force,
Pressure cell nature stress is not influenceed.
The bottom portlet of rigid plastics bucket (1) is thicker, and cutting is relatively dredged, though there is deformation, can guarantee that integrality.Therefore,
Pressure cell can be effectively protected during the follow-up back-grouting in tunnel not by mortar or moisture attack, and then will not also be made
Sand bed consolidation, hardening, ensure the accuracy subsequently measured.
Polybag (2) is although can be larger because polybag (2) intensity is relatively low with the temporary weight for bearing sand
Pressure can destroy polybag, therefore the deformation of sand can't be influenceed under later stage pressure from surrounding rock, ensure that pressure cell stress is closed
Manage, be accurate.
The spring leaf (4) of lower seat, a temporarily fixed effect, after installing, just lining spray are played to overall
Slurry can make bottom plate 3 and bow member be consolidated, and realize final fixation.
Polybag (2) uses polyethylene plastic bag, is moulded close to the position at rigid plastics bucket (1) bottom osculum end and hard
The inwall of charging basket (1) bonds together, and rigid plastics bucket (1) and fixed plate (3) are integral, and material is all rigid plastics.
Brief description of the drawings
Fig. 1 is overall structure perspective view.
Fig. 2 is side view.
Fig. 3 is the perspective view of fixed plate.
The entity sectional view of Fig. 4 rigid plastics buckets
Fig. 5 is rigid plastics bucket cross-sectional view.
Fig. 6 is spring leaf perspective view.
Wherein, 1- rigid plastics bucket, 2- polyethylene plastic bags, 3- fixed plates, 4- spring leafs, 5- fairleads, 6- pressure cells
Insert groove, 7- pressure cells lock, 8- bolt blocks, 9- fixing bolts, 10-U type intermediate plates
Embodiment
The present invention is illustrated in conjunction with accompanying drawing, accompanying drawing is schematic diagram, only illustrates base of the present invention in a schematic way
This structure, but the present invention is not limited to following examples.
Embodiment 1
Fig. 1-6 represents the basic composition of the present invention, and rigid plastics bucket 1 primarily serves the effect of supporting plastic bag 2, and
Play a part of completely cutting off mortar in later stage back-grouting.Plastic Drum 1 has cutting, and cutting is in netted, can be caused by country rock
During pressure, the bucket wall of top thin location can be broken, crush, and bottom then ensures there is moderate finite deformation, but not broken.
Fine sand is that to be disposed from the mesopore of fixed plate 3 into, pressure cell be that the groove 6 of inserting reserved from fixed plate is inserted, and is overturn,
With the fixation of pressure cell lock 7, (pressure cell lock is L-type structure, and all L-type structure one end are vertically fixed in fixed plate 3, separately
One end inwardly disperses to form a plane), also function to the effect for blocking sandbag.
Lower springs piece 4 has plasticity, height can be adjusted according to the distance of bow member and country rock, to ensure Sand Bucket top
Firmly country rock.Fixed position is adjusted by swivel bolt 9, to adapt to bow member shape.
Claims (5)
1. a kind of mounting and positioning device of pressure from surrounding rock box, it is characterised in that the device includes top sandbox, lower springs branch
Seat.Top sandbox includes rigid plastics bucket (1) and polybag (2);Rigid plastics bucket (1) is big for horn-like one end open, and one
End opening is small;Together with the mouth of polybag (2) and the osculum end of rigid plastics bucket (1) are bonded and sticked;
Lower springs bearing includes fixed plate (3) and spring leaf (4);Fixed plate (3) is annulus platy structure, center circle annular distance edge
The diameter both ends of annulus one have pressure cell and insert groove (6);The outer radial direction of fixed plate (3) annulus platy structure is provided with
The bolt block (8) in multiple strap bolt holes;The plate face of fixed plate (3) annulus platy structure is provided with multiple pressure cells lock (7), firmly
The osculum end of matter Plastic Drum (1) and the plate face of fixed plate (3) annulus platy structure are fixed together, while pressure cell lock (7)
In rigid plastics bucket (1);One end of spring leaf (4) is provided with bolt hole, bolt hole and the bolt block (8) of spring leaf (4)
Bolt hole is fixedly connected by bolt (9), and the other end of spring leaf (4) is U-shaped folder piece (10), each bolt block (8) corresponding one
Individual spring leaf (4);Multiple spring leafs (4) are located at the two sides of fixed plate (3) with rigid plastics bucket (1) respectively;Multiple spring leafs (4)
U-shaped folder piece can be fixed on bow member;Fairlead (5) is provided with the side wall of rigid plastics bucket (1).
2. according to a kind of mounting and positioning device of pressure from surrounding rock box described in claim 1, it is characterised in that in fixed plate (3)
The diameter of heart annulus hole is less than the diameter of pressure cell;The distance that two pressure cells insert groove (6) radial top is more than the straight of pressure cell
Footpath.
3. according to a kind of mounting and positioning device of pressure from surrounding rock box described in claim 1, it is characterised in that pressure cell, which latches, is
L-type structure.
4. according to a kind of mounting and positioning device of pressure from surrounding rock box described in claim 1, it is characterised in that rigid plastics bucket
(1) polybag (2) of the support equipped with fine sand is played a part of, rigid plastics bucket (1) inner surface is smooth, and outer surface has cutting,
Cutting is from large port to portlet, and by close to dredging, its wall thickness is also to thickness by thin.
5. the method implemented using the mounting and positioning device described in claim 1, it is characterised in that comprise the following steps:
It will be primarily determined that first according to the distance of bow member and country rock with husky amount, the central circular by fine sand from the annulus harden structure of fixed plate
It is poured at hole in polybag (2), pressure cell is inserted in groove (6) from pressure cell and is vertically put into, then rotational pressure box, makes pressure
Power box, which is placed in rigid plastics bucket (1), to be latched (7) by pressure cell simultaneously and holds and fixed;The lead of pressure cell is from fairlead (5)
Middle extraction;Afterwards, according to the distance between bow member and country rock, the height of adjustment spring leaf (4), and rotated along around bolt (9)
Spring leaf (4) is fixed to adapt to bow member, by U-shaped folder piece (10) with bow member;Polybag (2) of the top sandbox equipped with fine sand is withstood on
On country rock, last anchor leg, confirm position, keep a record.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710895530.0A CN107677400B (en) | 2017-09-28 | 2017-09-28 | Installation positioner of country rock pressure cell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710895530.0A CN107677400B (en) | 2017-09-28 | 2017-09-28 | Installation positioner of country rock pressure cell |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107677400A true CN107677400A (en) | 2018-02-09 |
CN107677400B CN107677400B (en) | 2020-01-24 |
Family
ID=61138298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710895530.0A Expired - Fee Related CN107677400B (en) | 2017-09-28 | 2017-09-28 | Installation positioner of country rock pressure cell |
Country Status (1)
Country | Link |
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CN (1) | CN107677400B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109990932A (en) * | 2019-04-03 | 2019-07-09 | 辽宁工程技术大学 | A kind of fixed device of Tunnel Surrounding Rock Pressure meter |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2544160A1 (en) * | 1975-10-03 | 1977-04-28 | Eckardt Ag J | Support for load cell in form of bending beam - with beam placed in slot in mounting plate and connected to it by one end |
CN103822739A (en) * | 2014-02-26 | 2014-05-28 | 洛阳理工学院 | Rock tunnel surrounding rock pressure gauge fixing device |
CN203657961U (en) * | 2014-01-07 | 2014-06-18 | 洛阳理工学院 | A soil pressure gauge fixing device |
CN203701066U (en) * | 2014-02-10 | 2014-07-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Soil pressure meter position-adjustable fixed installation device |
CN106323527A (en) * | 2016-09-27 | 2017-01-11 | 中国科学院武汉岩土力学研究所 | Pressure cell fast positioning and fixing device |
CN207231679U (en) * | 2017-09-28 | 2018-04-13 | 北京工业大学 | A kind of mounting and positioning device of pressure from surrounding rock box |
-
2017
- 2017-09-28 CN CN201710895530.0A patent/CN107677400B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2544160A1 (en) * | 1975-10-03 | 1977-04-28 | Eckardt Ag J | Support for load cell in form of bending beam - with beam placed in slot in mounting plate and connected to it by one end |
CN203657961U (en) * | 2014-01-07 | 2014-06-18 | 洛阳理工学院 | A soil pressure gauge fixing device |
CN203701066U (en) * | 2014-02-10 | 2014-07-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Soil pressure meter position-adjustable fixed installation device |
CN103822739A (en) * | 2014-02-26 | 2014-05-28 | 洛阳理工学院 | Rock tunnel surrounding rock pressure gauge fixing device |
CN106323527A (en) * | 2016-09-27 | 2017-01-11 | 中国科学院武汉岩土力学研究所 | Pressure cell fast positioning and fixing device |
CN207231679U (en) * | 2017-09-28 | 2018-04-13 | 北京工业大学 | A kind of mounting and positioning device of pressure from surrounding rock box |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109990932A (en) * | 2019-04-03 | 2019-07-09 | 辽宁工程技术大学 | A kind of fixed device of Tunnel Surrounding Rock Pressure meter |
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Publication number | Publication date |
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CN107677400B (en) | 2020-01-24 |
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Granted publication date: 20200124 |