CN108955967A - A kind of device and method for simulating annular tunnel liquid filling liner supporting structure stress - Google Patents
A kind of device and method for simulating annular tunnel liquid filling liner supporting structure stress Download PDFInfo
- Publication number
- CN108955967A CN108955967A CN201810574557.4A CN201810574557A CN108955967A CN 108955967 A CN108955967 A CN 108955967A CN 201810574557 A CN201810574557 A CN 201810574557A CN 108955967 A CN108955967 A CN 108955967A
- Authority
- CN
- China
- Prior art keywords
- plate
- load
- steel pipe
- separate type
- stressed plate
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 53
- 230000008093 supporting effect Effects 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 125
- 239000010959 steel Substances 0.000 claims abstract description 125
- 238000006243 chemical reaction Methods 0.000 claims abstract description 53
- 238000006073 displacement reaction Methods 0.000 claims abstract description 38
- 239000007787 solid Substances 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 22
- 239000004576 sand Substances 0.000 claims description 22
- 238000004088 simulation Methods 0.000 claims description 20
- 239000011888 foil Substances 0.000 claims description 17
- 239000000945 filler Substances 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 11
- 239000004746 geotextile Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 7
- 238000012806 monitoring device Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000008901 benefit Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000007142 ring opening reaction Methods 0.000 claims description 3
- 238000009958 sewing Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000011160 research Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010998 test method Methods 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
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of device and methods for simulating annular tunnel liquid filling liner supporting structure stress, sliding slot is machined on the inner sidewall of reaction frame, being slidably installed on the sliding slot has the first stressed plate and the second stressed plate, Magnetic gauge stand displacement meter is equipped with by Magnetic gauge stand displacement meter displacement structure on prefabricated reaction frame, jack is provided between the first stressed plate and prefabricated reaction frame, more springs have been uniformly arranged between the first stressed plate and the second stressed plate, raised load plate is fixed in the outer end face of the second stressed plate, the surface mount of the protrusion load plate has pressure sensor, the embeddable separate type round steel pipe opening of raised loading surface of the protrusion load plate.Apparatus structure is simple, at low cost, easy to operate, can be applied to the research under various different conditions to tunnel, and the popularization for filling liner supporting technology for annular tunnel liquid is laid a solid foundation, and has extensive practical engineering value and application prospect.
Description
Technical field
The present apparatus is related to a kind of device and method for simulating annular tunnel liquid filling liner supporting structure stress, main suitable
For fields such as engineering tunnel, engineering tunnel, mining grotto supportings.
Background technique
In recent years, the rapid transit net with the fast development of Chinese national economy, based on highway and national highway
The construction of network achieves the progress advanced by leaps and bounds, an important component of the mountain highway tunnel as highway, in day
Play effect more outstanding the today for becoming to focusing on environment protecting expressway, economy and efficiency.However, the ground as locating for tunnel
Matter condition and engineering specifications even more complex, the problem in tunnel construction and after construction is also more prominent, such as closes angle railway tunnel and applies
Between duration, drum about 1m on tunnel bottom, drum 30cm on tunnel bottom after being open to traffic；Xin Pulun railway tunnel transverse passage-way abutment wall, arch and bottom are broken
It splits, swell.Therefore, the research for solving this series of problems support technology is of great significance to tunnel engineering.
Seen tunnel force simulation device all can not really simulate power suffered by tunnel, the research to tunnel at present
Have certain limitation, it is excessive to essentially consist in existing simulator volume, operate it is highly inconvenient, and cannot be very to its stress
It is so good that record, and some devices fine cannot must then simulate tunnel stress condition, deviate the analysis to institute's stress thereon true,
Therefore, the device and method for designing a kind of simulation tunnel stress is very important.
Summary of the invention
The present invention is directed to the liquid filling liner supporting technology applied in engineering independently proposed, to solve current dress
The stress condition after tunnel excavation cannot be simulated well by setting, and all can not really measure annular tunnel liquid filling lining cutting branch
Protection structure stress characteristic and related law, autonomous Design one kind can real simulation annular tunnel liquid fill liner supporting knot
The device and method of structure stress, the device can real-time monitoring measure every mechanics parameter, it is anti-in time to tunnel stress condition in real time
Feedback；Apparatus structure is simple, at low cost, easy to operate, can be applied to the research under various different conditions to tunnel, for annular tunnel
The popularization of liquid filling liner supporting technology is laid a solid foundation, and has extensive practical engineering value and application prospect.
In order to realize above-mentioned technical characteristic, the object of the present invention is achieved like this: a kind of annular tunnel liquid of simulation
Fill liner supporting structure stress device, which is characterized in that it includes prefabricated reaction frame, the prefabricated reaction frame it is interior
Sliding slot is machined on side wall, being slidably installed on the sliding slot has the first stressed plate and the second stressed plate, in prefabricated counter-force frame
Magnetic gauge stand displacement meter is equipped with by Magnetic gauge stand displacement meter displacement structure on frame, in the first stressed plate and prefabricated reaction frame
Between be provided with jack, more springs have been uniformly arranged between the first stressed plate and the second stressed plate, in the second stressed plate
Outer end face be fixed with raised load plate, the surface mount of the protrusion load plate has pressure sensor, the protrusion load plate
The embeddable separate type round steel pipe opening of raised loading surface；It is preferable that mobility can be filled inside the separate type round steel pipe
Liquid buffer layer, the liquid buffer layer is wrapped up by parcel bag and is arranged in inside separate type round steel pipe, in parcel bag
On reserve corresponding relief port, the relief port is connected by release conduit with pumping equipment.
The both ends of first stressed plate and the second stressed plate are machined with the convex draw runner matched with sliding slot.
The Magnetic gauge stand displacement meter displacement structure includes the fine steel rib of parallel arrangement, and the fine steel rib is welded and fixed in parallel
On prefabricated reaction frame, steel plate is welded between fine steel rib, the Magnetic gauge stand displacement meter is fixedly mounted on steel plate
On；The pointer and separate type round steel pipe outer surface of the Magnetic gauge stand displacement meter respectively monitor point contact.
The end surface symmetric that first stressed plate and the second stressed plate match is provided with multiple uniformly distributed spring fixing bolts,
The spring positioning is mounted between spring fixing bolt.
There are one at the stress load position that the separate type round steel pipe is contacted with raised load plate can make raised load
The load ports of the bulge-structure face insertion of plate.
The separate type round steel pipe outer surface difference forced position is pasted with foil gauge, and the foil gauge is adopted with strain
Collect instrument connection.
The preferably closed gas and water filler of mobility, fine sand wrappage or haydite may be selected in the liquid buffer layer.
The separate type round steel pipe is assembled by two half-sectional annular sections of jurisdiction, and two half-sectional annular sections of jurisdiction
It is fixed with retaining ring, and there are relief ports for separate type round steel pipe interior annular different location, and welds release at relief port and lead
Pipe, separate type round steel pipe inside inner wall difference forced position layout of the monitoring points have multiple pressure sensors, the pressure sensing
Device is connect with computer；The release catheter tip is provided with rubber piston.
The annular tunnel liquid filling liner supporting structure stress device of simulation described in any one carries out the side of simulation test
Method, described device is further applied load by jack to be acted on the first stressed plate and the second stressed plate, and stressed plate is by load into one
Step acts on separate type round steel pipe, carries out the release stage when load load reaches the 85% of the yield limit of steel pipe, is unloading
The pressure stage removes the rubber piston of release catheter tip, is inserted into relief port and unload at sand using the conduit of pumping equipment
Reason, it is with rubber piston that relief port is closed again after the completion of release, guarantee not flow out in load phase filler, then carry out plus unload
Operation utilizes the power of foil gauge, pressure sensor and each monitoring point of Magnetic gauge stand displacement meter equipment real-time monitoring in the process
Learn parameter.
The method simulated annular tunnel liquid filling liner supporting structure stress device and carry out simulation test, feature
It is detailed operating procedure are as follows:
Step1: material prepares: preparing the steel plate of the biggish different sizes and shapes of stiffness and strength, jack, fine steel rib, bullet
Spring, fine sand, geotextiles, two arch steel pipes, foil gauge, pressure sensor, Magnetic gauge stand displacement meter, release catheter device；
Step2: according to tunnel arch ring size, a quadrangle production reaction frame: is made using the larger steel plate of stiffness and strength
Reaction frame, reserve concave slide groove in reaction frame two sides, two fine steel ribs of welding fitted at L/4 in reaction frame, in fine steel rib
Steel plate is placed close to position welding Magnetic gauge stand among reaction frame in middle position, and wherein L is reaction frame long side；
Step3: production stressed plate: two pieces of stressed plates are made using the larger steel plate of stiffness and strength, in two pieces of two lateral incisions of stressed plate
Convex draw runner is cut, slide it can just in the concave slide groove of reaction frame two sides, is equidistantly welded in two load plate surfaces multiple
Spring fixing bolt, in another surface solder-bump load plate of the second stressed plate；
Step4: two half-sectional formula separate type circular steels production separate type round steel pipe: are made compared with large steel pipe using stiffness and strength
Pipe, separate type round steel pipe is two independent semicircular ring domes, several retaining rings is welded on its surface, in separate type circular steel
Manage the equidistant application pressing force sensor in each monitoring point；
Step5: prefabricated liquid buffer layer: sewing parcel bag using geotextiles, is the loading of 0.35-0.25mm fine sand by average grain diameter
It is fabricated to elongated cystic structures in geotextiles parcel bag, and reserves release in the corresponding release hole site of separate type round steel pipe
Mouthful, be placed between separate type round steel pipe, by retaining ring by two independent semicircular ring domes be fixed into one it is whole
Body, blend rubber piston clog pressure relief vent；
Step6: assembling equipment: installing jack, the first stressed plate and the second stressed plate on reaction frame, and two boards it
Between the spring of larger coefficient of elasticity is installed so that three can slide in the sliding slot of reaction frame two sides, and by assembled point
It simulates annular arch ring device from formula round steel pipe to be placed in reaction frame, so that the second stressed plate protrusion load plate is just lucky
It is embedded in annular arch ring opening, and lays a pressure sensor in the raised load plate contacted with filler；
Step7: installation monitoring device: on rigid plate arrange Magnetic gauge stand displacement meter so that the pointer of Magnetic gauge stand displacement meter with
Separate type round steel pipe outer surface respectively monitors point contact, answers in the stickup of separate type round steel pipe outer surface difference forced position
Become piece to connect with strain acquirement instrument, and will be connect in different forced position layout of the monitoring points pressure sensors with computer；
Step8: simulation test: applying different grades of load using loading equipemtn jack, is that a magnitude is added with 5kN
It carries, simulation tunnel Surrounding Rocks Deformation acts on the different loads in liquid filling liner supporting structure, passes through the pressure sensing of laying
Device monitors the stress size of annular arch ring, carries out unloading press operation when load to be loaded reaches the 85% of the yield limit of steel pipe, benefit
The fine sand of annular arch ring buffer layer is sucked out with pumping equipment, larger load suffered by removal reaches off-load and stress homo-effect, to
Pressure relief vent is clogged after the completion of pressure dump, unloads press operation carrying out load, in the process by the pressure sensor laid,
The monitoring devices such as Magnetic gauge stand and foil gauge measure the mechanics parameters such as pressure, deflection and the strain of each monitoring point
Step9: it according to the every mechanics parameter measured, studies under liquid filling liner supporting structure difference load action and different
Maximum supporting power, off-load rule, the equal law of stress and automatically unloading rule under charges, provide relevant for Practical Project
Theory support.
The method have the advantages that:
1, what the present invention was innovative fills a laminar flow matter in the deformation allowance layer in practical tunnel engineering just between lining and two linings
The buffer layer of filler, the buffer layer can provide the space of deformation but also the intensity consumption one by buffer layer itself to country rock
The stress of part country rock plays a protective role to two lining supporting construction, so that two lining supporting effects be made to reach best.
2, liner supporting technology is filled for the liquid for applying in engineering of independently proposing, the autonomous Design device,
The different brackets load in liquid filling liner supporting structure is acted on using the unit simulation tunnel Surrounding Rocks Deformation, is loaded into one
Carry out unloading press operation when constant load, under research liquid filling liner supporting structure difference load action and under different charges most
Big supporting power, off-load rule, the equal law of stress and automatically unloading rule.
3, device proposed by the invention can real-time monitoring tunnel stress condition, force-mechanism is more nearly tunnel from experiencing
Power situation, and the mobility of filler is made full use of to be homogenized the big load in part, so that tunnel entirety liner supporting structure stress is more
For uniform safety.
4, the present invention proposes to utilize the larger position load of the timely removal tunnel stress of pressure relief devices, so that the lesser position of stress
The structure set plays biggish supporting effect, and entire tunnel support structure stress is more uniform.
5, the device stress deformation situation after real-time monitoring tunnel excavation and can timely feedback, to monitor tunnel in engineering
Deformation provides a kind of new method, and measured data also provide theory support for Practical Project, has extensive engineering practice
Meaning and application prospect.
6, present invention efficiently solves analog case distortion, the problems such as simulated operation is inconvenient, so as to true mould
The stress deformation situation of quasi- Wall Rock of Tunnel, apparatus structure is simple, at low cost, easy to operate, can be applied under various different conditions
Research to tunnel, and lay a solid foundation for the popularization that annular tunnel liquid fills liner supporting technology.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that annular tunnel liquid of the present invention fills liner supporting structure stress device overall schematic.
Fig. 2 is two of the present invention half-sectional separate type round steel pipe schematic detail views.
Fig. 3 is stressed plate of the present invention and sliding slot schematic detail view.
Fig. 4 is device part of the present invention assembling schematic diagram.
In figure: prefabricated reaction frame 1, jack 2, the first stressed plate 3, the second stressed plate 4, sliding slot 5, convex draw runner 6, protrusion
Load plate 7, spring fixing bolt 8, spring 9, liquid buffer layer 10, fine sand 11, parcel bag 12, relief port 13, separate type circular steel
Pipe 14, retaining ring 15, foil gauge 16, pressure sensor 17, Magnetic gauge stand displacement meter 18, release conduit 19, fine steel rib 20, steel plate
21, rubber piston 22, pumping equipment 23.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
Embodiment 1:
As shown in Figs 1-4, a kind of device for simulating annular tunnel liquid filling liner supporting structure stress, which is characterized in that it
Including prefabricated reaction frame 1, it is machined with sliding slot 5 on the inner sidewall of the prefabricated reaction frame 1, is slidably matched on the sliding slot 5
First stressed plate 3 and the second stressed plate 4 are installed, pacified on prefabricated reaction frame 1 by Magnetic gauge stand displacement meter displacement structure
Equipped with Magnetic gauge stand displacement meter 18, it is provided with jack 2 between the first stressed plate 3 and prefabricated reaction frame 1, in the first stress
It has been uniformly arranged more springs 9 between plate 3 and the second stressed plate 4, has been fixed with raised load plate in the outer end face of the second stressed plate 4
7, the surface mount of the protrusion load plate 7 has a pressure sensor 17, and embeddable point of raised loading surface of the protrusion load plate 7
From 14 opening of formula round steel pipe；The preferable liquid buffer layer 10 of mobility can be filled inside the separate type round steel pipe 14,
The liquid buffer layer 10 is wrapped up and is arranged in inside separate type round steel pipe 14 by parcel bag 12, is reserved on parcel bag 12
Corresponding relief port 13, the relief port 13 are connected by release conduit 19 with pumping equipment 23.
Further, the both ends of first stressed plate 3 and the second stressed plate 4 are machined with the convex cunning matched with sliding slot 5
Item 6.
Further, the Magnetic gauge stand displacement meter displacement structure includes the fine steel rib 20 of parallel arrangement, the fine steel rib
20 are weldingly fixed in parallel on prefabricated reaction frame 1, and steel plate 21, the Magnetic gauge stand position are welded between fine steel rib 20
Meter 18 is moved to be fixedly mounted on steel plate 21；The pointer and 14 outer surface of separate type round steel pipe of the Magnetic gauge stand displacement meter 18
Each monitoring point contact.
Further, the end surface symmetric that first stressed plate 3 and the second stressed plate 4 match is provided with multiple uniformly distributed
Spring fixing bolt 8,9 location and installation of spring is between spring fixing bolt 8.
Further, there are one at the stress load position that the separate type round steel pipe 14 is contacted with raised load plate 7
The load ports that the bulge-structure face of raised load plate 7 can be made to be embedded in.
Further, the 14 outer surface difference forced position of separate type round steel pipe is pasted with foil gauge 16, described
Foil gauge 16 is connect with strain acquirement instrument.
Further, the preferably closed gas and water filler of mobility, fine sand wrappage may be selected in the liquid buffer layer 10
Or haydite.
Further, the separate type round steel pipe 14 is assembled by two half-sectional annular sections of jurisdiction, and two and half
The annular section of jurisdiction retaining ring 15 cutd open is fixed, and there are relief ports 13 for 14 interior annular different location of separate type round steel pipe, and
Release conduit 19 is welded at relief port 13,14 inside inner wall difference forced position layout of the monitoring points of separate type round steel pipe has multiple
Pressure sensor 17, the pressure sensor 17 are connect with computer；19 end of release conduit is provided with rubber piston 22.
Embodiment 2:
It is welded into reaction frame 1 using the steel plate with greater stiffness and intensity, and is had in prefabricated 1 two sides of reaction frame recessed
The sliding slot 5 gone, welds Magnetic gauge stand displacement meter displacement structure on reaction frame 1, and the structure is at regular intervals by two
It is welded on reaction frame 1, welds one block of steel plate 21 in 20 middle position of fine steel rib and constitute.
Further, the jack 2 is the equipment of the device loading force, and to simulate tunnel load, bottom is made
With on reaction frame 1, top acts on the first stressed plate 3 and is further applied load to the device.
Further, first stressed plate 3 is made of the steel plate with greater stiffness and intensity, the first stressed plate 3
Two-end structure is the convex draw runner 6 of protrusion, and the sliding slot 5 that can just fall in 1 two sides of reaction frame is used cooperatively so that first by
Power plate 3 slides on sliding slot 5.
Further, it is two pieces that first stressed plate 3, which is divided to, and 3 burnishing surface of the first stressed plate is contacted with jack 22, another
Surface is welded with multiple spring fixing bolts 8；Surface corresponding to second stressed plate 4 and the first stressed plate 3 be welded with it is multiple with first by
A raised load plate 7, raised 7 surface of load plate are welded in the symmetrical fixed spring bolt 8 of power plate 3, another surface of the second stressed plate 4
It is pasted with pressure sensor 17.
Further, on first stressed plate 3 and the second stressed plate 4 symmetrical fixed spring bolt 8 can install it is certain
The spring 9 of coefficient of elasticity, two pieces of stressed plates connect into an entirety with spring 9 and slide in sliding slot 5.
Further, the embeddable separate type of raised loading surface of the raised load plate 7 on another surface of second stressed plate 4
14 opening of round steel pipe.
Further, the separate type round steel pipe 14 have biggish strength and stiffness, separate type round steel pipe 14 with
There are the load ports that one can be such that the bulge-structure face of raised load plate 7 is embedded at the stress load position that second stressed plate 4 is contacted.
Further, the separate type round steel pipe 14 is assembled by two half-sectional annular sections of jurisdiction, and two and half
The annular section of jurisdiction cutd open can be fixed with retaining ring 15, and there are relief ports 13 for 14 interior annular different location of separate type round steel pipe, and
Release conduit 19 is welded at relief port 13,14 inside inner wall difference forced position layout of the monitoring points of separate type round steel pipe has pressure
Force snesor 17 is connect with computer.
Further, it is liquid buffering that the preferable filler of mobility can be filled inside the separate type round steel pipe 14
Layer 10, liquid buffer layer 10 are the preferable buffer layer of a laminar flow, i.e., in Practical Project between lining at the beginning of tunnel and two serve as a contrast
Deformation allowance layer fills the buffer layer 10 of a laminar flow matter filler, and it is preferably close that mobility may be selected in the liquid buffer layer 10
Gas and water filler, fine sand wrappage, haydite etc. are closed, the present invention is illustrated when being only sand body to charges, but not to charges
It restricts.
Further, when the filler is fine sand, liquid buffer layer 10 is made of fine sand 11 and parcel bag 12, by geotechnique
Cloth sews parcel bag 12, fills fine sand 11 in parcel bag 12 and forms elongated cryptomere, and reserves on parcel bag 12 and unload accordingly
Mouth 13 is pressed, parcel bag 12 can fill 14 Internal and external cycle of separate type round steel pipe just.
Further, the relief port 13 is clogged in load phase by rubber piston 22 closed, in the release stage by rubber
Glue piston, which is removed, to carry out unloading sand processing in the conduit insertion relief port 13 using pumping equipment 23, living with rubber again after the completion of release
Plug 22 is closed by relief port 13.
Further, on the steel plate 21 arrange Magnetic gauge stand displacement meter 18, the pointer of Magnetic gauge stand displacement meter 18 with point
Point contact is respectively monitored from 14 outer surface of formula round steel pipe, 14 outer surface difference forced position of separate type round steel pipe is pasted with
Foil gauge 16 is connect with strain acquirement instrument.
Embodiment 3:
The method that the annular tunnel liquid filling liner supporting structure stress device of simulation described in any one carries out simulation test, institute
It states device to be further applied load and act on the first stressed plate 3 and the second stressed plate 4 by jack 2, stressed plate is further by load
It acts on separate type round steel pipe 14, carries out the release stage when load load reaches the 85% of the yield limit of steel pipe, unloading
The pressure stage removes the rubber piston 22 of 19 end of release conduit, is inserted into relief port 13 and is carried out using the conduit of pumping equipment 23
Sand processing is unloaded, it is with rubber piston 22 that relief port 13 is closed again after the completion of release, guarantee not flow out in load phase filler, then
It carries out adding unloading operation, it is real-time using foil gauge 16, pressure sensor 17 and 18 equipment of Magnetic gauge stand displacement meter in the process
Monitor the mechanics parameter of each monitoring point.
The method simulated annular tunnel liquid filling liner supporting structure stress device and carry out simulation test, feature
It is detailed operating procedure are as follows:
Step1: material prepares: preparing the steel plate of the biggish different sizes and shapes of stiffness and strength, jack, fine steel rib, bullet
Spring, fine sand, geotextiles, two arch steel pipes, foil gauge, pressure sensor, Magnetic gauge stand displacement meter, release catheter device；
Step2: according to tunnel arch ring size, a quadrangle production reaction frame: is made using the larger steel plate of stiffness and strength
Reaction frame, reserve concave slide groove in reaction frame two sides, two fine steel ribs of welding fitted at L/4 in reaction frame, in fine steel rib
Steel plate is placed close to position welding Magnetic gauge stand among reaction frame in middle position, and wherein L is reaction frame long side；
Step3: production stressed plate: two pieces of stressed plates are made using the larger steel plate of stiffness and strength, in two pieces of two lateral incisions of stressed plate
Convex draw runner is cut, slide it can just in the concave slide groove of reaction frame two sides, is equidistantly welded in two load plate surfaces multiple
Spring fixing bolt, in another surface solder-bump load plate of the second stressed plate；
Step4: two half-sectional formula separate type circular steels production separate type round steel pipe: are made compared with large steel pipe using stiffness and strength
Pipe, separate type round steel pipe is two independent semicircular ring domes, several retaining rings is welded on its surface, in separate type circular steel
Manage the equidistant application pressing force sensor in each monitoring point；
Step5: prefabricated liquid buffer layer: sewing parcel bag using geotextiles, is the loading of 0.35-0.25mm fine sand by average grain diameter
It is fabricated to elongated cystic structures in geotextiles parcel bag, and reserves release in the corresponding release hole site of separate type round steel pipe
Mouthful, be placed between separate type round steel pipe, by retaining ring by two independent semicircular ring domes be fixed into one it is whole
Body, blend rubber piston clog pressure relief vent；
Step6: assembling equipment: installing jack, the first stressed plate and the second stressed plate on reaction frame, and two boards it
Between the spring of larger coefficient of elasticity is installed so that three can slide in the sliding slot of reaction frame two sides, and by assembled point
It simulates annular arch ring device from formula round steel pipe to be placed in reaction frame, so that the second stressed plate protrusion load plate is just lucky
It is embedded in annular arch ring opening, and lays a pressure sensor in the raised load plate contacted with filler；
Step7: installation monitoring device: on rigid plate arrange Magnetic gauge stand displacement meter so that the pointer of Magnetic gauge stand displacement meter with
Separate type round steel pipe outer surface respectively monitors point contact, answers in the stickup of separate type round steel pipe outer surface difference forced position
Become piece to connect with strain acquirement instrument, and will be connect in different forced position layout of the monitoring points pressure sensors with computer；
Step8: simulation test: applying different grades of load using loading equipemtn jack, is that a magnitude is added with 5kN
It carries, simulation tunnel Surrounding Rocks Deformation acts on the different loads in liquid filling liner supporting structure, passes through the pressure sensing of laying
Device monitors the stress size of annular arch ring, carries out unloading press operation when load to be loaded reaches the 85% of the yield limit of steel pipe, benefit
The fine sand of annular arch ring buffer layer is sucked out with pumping equipment, larger load suffered by removal reaches off-load and stress homo-effect, to
Pressure relief vent is clogged after the completion of pressure dump, unloads press operation carrying out load, in the process by the pressure sensor laid,
The monitoring devices such as Magnetic gauge stand and foil gauge measure the mechanics parameters such as pressure, deflection and the strain of each monitoring point
Step9: it according to the every mechanics parameter measured, studies under liquid filling liner supporting structure difference load action and different
Maximum supporting power, off-load rule, the equal law of stress and automatically unloading rule under charges, provide relevant for Practical Project
Theory support.
Above-described embodiment is used to illustrate the present invention, rather than limits the invention, in spirit of the invention and
In scope of protection of the claims, to any modifications and changes that the present invention makes, protection scope of the present invention is both fallen within.
Claims (10)
1. a kind of device for simulating annular tunnel liquid filling liner supporting structure stress, which is characterized in that it includes prefabricated anti-
Power frame (1) is machined with sliding slot (5) on the inner sidewall of the prefabricated reaction frame (1), and be slidably matched peace on the sliding slot (5)
Equipped with the first stressed plate (3) and the second stressed plate (4), knot is placed by Magnetic gauge stand displacement meter on prefabricated reaction frame (1)
Structure is equipped with Magnetic gauge stand displacement meter (18), is provided with jack between the first stressed plate (3) and prefabricated reaction frame (1)
(2), more springs (9) have been uniformly arranged between the first stressed plate (3) and the second stressed plate (4), in the second stressed plate (4)
Outer end face is fixed with raised load plate (7), and the surface mount of the protrusion load plate (7) has pressure sensor (17), described convex
Play embeddable separate type round steel pipe (14) opening of raised loading surface of load plate (7)；The separate type round steel pipe (14)
The fillable preferable liquid buffer layer (10) of mobility in inside, the liquid buffer layer (10) are wrapped up and are set by parcel bag (12)
It sets in separate type round steel pipe (14) inside, is reserved on parcel bag (12) corresponding relief port (13), the relief port (13)
It is connected by release conduit (19) with pumping equipment (23).
2. a kind of device for simulating annular tunnel liquid filling liner supporting structure stress according to claim 1, special
Sign is: the both ends of first stressed plate (3) and the second stressed plate (4) are machined with the convex draw runner matched with sliding slot (5)
(6).
3. a kind of device for simulating annular tunnel liquid filling liner supporting structure stress according to claim 1, special
Sign is: the Magnetic gauge stand displacement meter displacement structure includes the fine steel rib (20) of parallel arrangement, and the fine steel rib (20) is parallel
It is weldingly fixed on prefabricated reaction frame (1), is welded between fine steel rib (20) steel plate (21), the Magnetic gauge stand position
Meter (18) is moved to be fixedly mounted on steel plate (21)；The pointer of the Magnetic gauge stand displacement meter (18) and separate type round steel pipe (14)
Outer surface respectively monitors point contact.
4. a kind of device for simulating annular tunnel liquid filling liner supporting structure stress according to claim 1, special
Sign is: it is solid that the end surface symmetric that first stressed plate (3) and the second stressed plate (4) match is provided with multiple uniformly distributed springs
Determine bolt (8), spring (9) location and installation is between spring fixing bolt (8).
5. a kind of device for simulating annular tunnel liquid filling liner supporting structure stress according to claim 1, special
Sign is: the stress load position that the separate type round steel pipe (14) is contacted with raised load plate (7) there are one can make it is convex
Play the load ports of the bulge-structure face insertion of load plate (7).
6. a kind of device for simulating annular tunnel liquid filling liner supporting structure stress according to claim 1, special
Sign is: separate type round steel pipe (14) the outer surface difference forced position is pasted with foil gauge (16), the foil gauge
(16) it is connect with strain acquirement instrument.
7. a kind of device for simulating annular tunnel liquid filling liner supporting structure stress according to claim 1, special
Sign is: the preferably closed gas and water filler of mobility, fine sand wrappage or haydite may be selected in the liquid buffer layer (10).
8. a kind of device for simulating annular tunnel liquid filling liner supporting structure stress according to claim 1, special
Sign is: the separate type round steel pipe (14) is assembled by two half-sectional annular sections of jurisdiction, and two half-sectional annulars
Section of jurisdiction is fixed with retaining ring (15), and there are relief port (13) for separate type round steel pipe (14) interior annular different location, and are unloading
It presses and welds release conduit (19) at mouth (13), the internal inner wall difference forced position layout of the monitoring points of separate type round steel pipe (14) has
Multiple pressure sensors (17), the pressure sensor (17) connect with computer；Release conduit (19) end is provided with rubber
Glue piston (22).
9. being carried out using annular tunnel liquid filling liner supporting structure stress device is simulated described in claim 1-8 any one
The method of simulation test, it is characterised in that: described device by jack (2) be further applied load act on the first stressed plate (3) and
On second stressed plate (4), stressed plate is further acted on load on separate type round steel pipe (14), reaches steel in load load
The yield limit of pipe 85% when carry out the release stage, the rubber piston (22) of release conduit (19) end is gone in the release stage
It removes, is inserted into relief port (13) using the conduit of pumping equipment (23) and unload sand processing, use rubber piston after the completion of release again
(22) relief port (13) are closed, guarantee not flow out in load phase filler, then carry out adding unloading operation, it is sharp in the process
Joined with the mechanics of foil gauge (16), pressure sensor (17) and Magnetic gauge stand displacement meter (18) each monitoring point of equipment real-time monitoring
Number.
10. the annular tunnel liquid filling liner supporting structure stress device of the simulation according to claim 9 carries out simulation examination
The method tested, it is characterised in that detailed operating procedure are as follows:
Step1: material prepares: preparing the steel plate of the biggish different sizes and shapes of stiffness and strength, jack, fine steel rib, bullet
Spring, fine sand, geotextiles, two arch steel pipes, foil gauge, pressure sensor, Magnetic gauge stand displacement meter, release catheter device；
Step2: according to tunnel arch ring size, a quadrangle production reaction frame: is made using the larger steel plate of stiffness and strength
Reaction frame, reserve concave slide groove in reaction frame two sides, two fine steel ribs of welding fitted at L/4 in reaction frame, in fine steel rib
Steel plate is placed close to position welding Magnetic gauge stand among reaction frame in middle position, and wherein L is reaction frame long side；
Step3: production stressed plate: two pieces of stressed plates are made using the larger steel plate of stiffness and strength, in two pieces of two lateral incisions of stressed plate
Convex draw runner is cut, slide it can just in the concave slide groove of reaction frame two sides, is equidistantly welded in two load plate surfaces multiple
Spring fixing bolt, in another surface solder-bump load plate of the second stressed plate；
Step4: two half-sectional formula separate type circular steels production separate type round steel pipe: are made compared with large steel pipe using stiffness and strength
Pipe, separate type round steel pipe is two independent semicircular ring domes, several retaining rings is welded on its surface, in separate type circular steel
Manage the equidistant application pressing force sensor in each monitoring point；
Step5: prefabricated liquid buffer layer: sewing parcel bag using geotextiles, is the loading of 0.35-0.25mm fine sand by average grain diameter
It is fabricated to elongated cystic structures in geotextiles parcel bag, and reserves release in the corresponding release hole site of separate type round steel pipe
Mouthful, be placed between separate type round steel pipe, by retaining ring by two independent semicircular ring domes be fixed into one it is whole
Body, blend rubber piston clog pressure relief vent；
Step6: assembling equipment: installing jack, the first stressed plate and the second stressed plate on reaction frame, and two boards it
Between the spring of larger coefficient of elasticity is installed so that three can slide in the sliding slot of reaction frame two sides, and by assembled point
It simulates annular arch ring device from formula round steel pipe to be placed in reaction frame, so that the second stressed plate protrusion load plate is just lucky
It is embedded in annular arch ring opening, and lays a pressure sensor in the raised load plate contacted with filler；
Step7: installation monitoring device: on rigid plate arrange Magnetic gauge stand displacement meter so that the pointer of Magnetic gauge stand displacement meter with
Separate type round steel pipe outer surface respectively monitors point contact, answers in the stickup of separate type round steel pipe outer surface difference forced position
Become piece to connect with strain acquirement instrument, and will be connect in different forced position layout of the monitoring points pressure sensors with computer；
Step8: simulation test: applying different grades of load using loading equipemtn jack, is that a magnitude is added with 5kN
It carries, simulation tunnel Surrounding Rocks Deformation acts on the different loads in liquid filling liner supporting structure, passes through the pressure sensing of laying
Device monitors the stress size of annular arch ring, carries out unloading press operation when load to be loaded reaches the 85% of the yield limit of steel pipe, benefit
The fine sand of annular arch ring buffer layer is sucked out with pumping equipment, larger load suffered by removal reaches off-load and stress homo-effect, to
Pressure relief vent is clogged after the completion of pressure dump, unloads press operation carrying out load, in the process by the pressure sensor laid,
The monitoring devices such as Magnetic gauge stand and foil gauge measure the mechanics parameters such as pressure, deflection and the strain of each monitoring point
Step9: it according to the every mechanics parameter measured, studies under liquid filling liner supporting structure difference load action and different
Maximum supporting power, off-load rule, the equal law of stress and automatically unloading rule under charges, provide relevant for Practical Project
Theory support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574557.4A CN108955967B (en) | 2018-06-06 | 2018-06-06 | Device and method for simulating stress of fluid filling lining supporting structure of annular tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574557.4A CN108955967B (en) | 2018-06-06 | 2018-06-06 | Device and method for simulating stress of fluid filling lining supporting structure of annular tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108955967A true CN108955967A (en) | 2018-12-07 |
| CN108955967B CN108955967B (en) | 2020-04-07 |
Family
ID=64493125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810574557.4A Active CN108955967B (en) | 2018-06-06 | 2018-06-06 | Device and method for simulating stress of fluid filling lining supporting structure of annular tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108955967B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595003A (en) * | 2019-01-24 | 2019-04-09 | 三峡大学 | A kind of big section of tunnel is backbreak liner supporting and autonomous pressure relief device and construction method |
| CN109859607A (en) * | 2019-03-22 | 2019-06-07 | 三峡大学 | Simulate the device and method of arch tunnel different zones stress |
| CN110231115A (en) * | 2019-06-20 | 2019-09-13 | 三峡大学 | Simulate the device and method of plastic zone of surrounding rock development and liquid liner structure mechanical response under different supporting power |
| CN111157342A (en) * | 2020-02-26 | 2020-05-15 | 哈尔滨学院 | Pressure controller |
| CN112302683A (en) * | 2020-10-26 | 2021-02-02 | 昆山市建设工程质量检测中心 | Model manufacturing method for simulating shield segment wall post-grouting defect |
| CN113187529A (en) * | 2021-05-24 | 2021-07-30 | 三峡大学 | Tunnel fluid filling lining sand unloading amount metering and reinforcing construction device and method |
| CN114136765A (en) * | 2021-12-06 | 2022-03-04 | 广东粤海珠三角供水有限公司 | Submarine tunnel segment stress deformation and leakage test device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101035693B1 (en) * | 2011-02-18 | 2011-05-19 | 이수기술단(주) | Connector for underground electronic line of power distribution |
| WO2014111920A1 (en) * | 2013-01-17 | 2014-07-24 | Sure Erasure Ltd. | System and method for monitoring of an electro-mechanical device |
| CN106437757A (en) * | 2016-10-10 | 2017-02-22 | 三峡大学 | Tire type lining structure between tunnel and shield lining segment and method |
| CN206830215U (en) * | 2017-05-26 | 2018-01-02 | 中铁十四局集团第二工程有限公司 | It is a kind of can early warning dual pressure-relieving achor bar |
| CN107956490A (en) * | 2017-12-29 | 2018-04-24 | 中国铁道科学研究院铁道建筑研究所 | A kind of intelligent tunnel lining trolley |
| CN107989634A (en) * | 2017-12-29 | 2018-05-04 | 中国铁道科学研究院铁道建筑研究所 | A kind of information-based monitoring system of tunnel lining trolley concrete cast |
| CN108019222A (en) * | 2017-11-20 | 2018-05-11 | 三峡大学 | A kind of tunnel lining structure filled using haydite and construction method |
-
2018
- 2018-06-06 CN CN201810574557.4A patent/CN108955967B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101035693B1 (en) * | 2011-02-18 | 2011-05-19 | 이수기술단(주) | Connector for underground electronic line of power distribution |
| WO2014111920A1 (en) * | 2013-01-17 | 2014-07-24 | Sure Erasure Ltd. | System and method for monitoring of an electro-mechanical device |
| CN106437757A (en) * | 2016-10-10 | 2017-02-22 | 三峡大学 | Tire type lining structure between tunnel and shield lining segment and method |
| CN206830215U (en) * | 2017-05-26 | 2018-01-02 | 中铁十四局集团第二工程有限公司 | It is a kind of can early warning dual pressure-relieving achor bar |
| CN108019222A (en) * | 2017-11-20 | 2018-05-11 | 三峡大学 | A kind of tunnel lining structure filled using haydite and construction method |
| CN107956490A (en) * | 2017-12-29 | 2018-04-24 | 中国铁道科学研究院铁道建筑研究所 | A kind of intelligent tunnel lining trolley |
| CN107989634A (en) * | 2017-12-29 | 2018-05-04 | 中国铁道科学研究院铁道建筑研究所 | A kind of information-based monitoring system of tunnel lining trolley concrete cast |
Non-Patent Citations (1)
| Title |
|---|
| 柏巍: "钢纤维混凝土动态抗压性能研究", 《CNKI》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595003A (en) * | 2019-01-24 | 2019-04-09 | 三峡大学 | A kind of big section of tunnel is backbreak liner supporting and autonomous pressure relief device and construction method |
| CN109595003B (en) * | 2019-01-24 | 2020-09-01 | 三峡大学 | Tunnel large-section overexcavation lining support and autonomous pressure relief device and construction method |
| CN109859607A (en) * | 2019-03-22 | 2019-06-07 | 三峡大学 | Simulate the device and method of arch tunnel different zones stress |
| CN110231115A (en) * | 2019-06-20 | 2019-09-13 | 三峡大学 | Simulate the device and method of plastic zone of surrounding rock development and liquid liner structure mechanical response under different supporting power |
| CN111157342A (en) * | 2020-02-26 | 2020-05-15 | 哈尔滨学院 | Pressure controller |
| CN111157342B (en) * | 2020-02-26 | 2020-08-14 | 哈尔滨学院 | Pressure controller |
| CN112302683A (en) * | 2020-10-26 | 2021-02-02 | 昆山市建设工程质量检测中心 | Model manufacturing method for simulating shield segment wall post-grouting defect |
| CN113187529A (en) * | 2021-05-24 | 2021-07-30 | 三峡大学 | Tunnel fluid filling lining sand unloading amount metering and reinforcing construction device and method |
| CN114136765A (en) * | 2021-12-06 | 2022-03-04 | 广东粤海珠三角供水有限公司 | Submarine tunnel segment stress deformation and leakage test device |
| CN114136765B (en) * | 2021-12-06 | 2023-12-19 | 广东粤海珠三角供水有限公司 | Submarine tunnel segment stress deformation and leakage test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108955967B (en) | 2020-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108955967A (en) | A kind of device and method for simulating annular tunnel liquid filling liner supporting structure stress | |
| CN103995097B (en) | A kind of test method and device of simulating jacking construction initiation stratum deformation | |
| CN108872530B (en) | Large-scale model test device for simulating asymmetric small-clear-distance tunnel excavation process | |
| CN103076128B (en) | Tunnel three-dimensional stress field simulator | |
| CN108982219A (en) | Tunnel fault dislocation model test device and dislocation model test system | |
| CN103882894B (en) | Prestressed concrete pipe pile horizontal bearing characteristic test model and test method | |
| CN105300876B (en) | Self-balancing type buried pipeline and soil body interaction experimental rig | |
| CN103822794B (en) | A kind of large-scale arcuately flexible uniform loading tunnel support model assay systems and method | |
| CN110514806B (en) | Similar simulation test device and method | |
| CN209670980U (en) | A kind of tunneling shield section of jurisdiction site monitoring system | |
| CN104931414B (en) | A kind of swelled ground area slurry balance shield tunnel duct piece force analysis experimental rig | |
| CN109859607A (en) | Simulate the device and method of arch tunnel different zones stress | |
| CN205280715U (en) | Model of simulation excavation ground body | |
| CN202994353U (en) | Tunnel three dimensional stress field stimulation system | |
| CN103866736A (en) | Physical simulation testing system and method for influences of mine earthquake on coal mine underground reservoir | |
| CN106596290A (en) | Rock structural surface on-site hydraulic coupling direct shearing test structure device and construction method thereof | |
| CN107179391A (en) | A kind of experimental rig that Under-cross tunnel shallow layer grouting is buried for an ultra shallow | |
| CN105319123A (en) | Multifunctional model test pile | |
| CN204781019U (en) | Multi -functional model test stake | |
| CN103711152B (en) | X-type Model Pile loads monitoring device and monitoring method | |
| CN105954099B (en) | Built-in retaining wall type soil pressure seep effect test method | |
| CN103061361A (en) | Device for testing side wall adfreezing force of piles in frozen earth areas and application method thereof | |
| CN105890991B (en) | Consider the soil pressure relaxation effect test method of Ground crack | |
| CN203629965U (en) | Dual-purpose testing device of tire reinforced soil structure drawing model | |
| CN107942038A (en) | Slope retaining model assay systems and test method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20181207 Assignee: Hubei Hongzhuo Architectural Design Co.,Ltd. Assignor: CHINA THREE GORGES University Contract record no.: X2023980043461 Denomination of invention: A device and method for simulating the force acting on the lining support structure of fluid filling in a circular tunnel Granted publication date: 20200407 License type: Exclusive License Record date: 20231019 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Hubei Hongzhuo Architectural Design Co.,Ltd. Assignor: CHINA THREE GORGES University Contract record no.: X2023980043461 Date of cancellation: 20240402 |
|
| EC01 | Cancellation of recordation of patent licensing contract |