CN108387334A - A kind of inclined shaft freezing construction borehole wall mechanical characteristic monitoring device - Google Patents
A kind of inclined shaft freezing construction borehole wall mechanical characteristic monitoring device Download PDFInfo
- Publication number
- CN108387334A CN108387334A CN201810132088.0A CN201810132088A CN108387334A CN 108387334 A CN108387334 A CN 108387334A CN 201810132088 A CN201810132088 A CN 201810132088A CN 108387334 A CN108387334 A CN 108387334A
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- plate
- model
- babinet
- freezing
- horizontal addload
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
A kind of inclined shaft freezing construction borehole wall mechanical characteristic monitoring device,Including model babinet,The rectangle semitight babinet of a upper opening is connected between model babinet,Model babinet and bottom plate,Bolt of lower base is connected,And do water-proofing treatment,The external side of model casing is equipped with counter-force channel steel and mechanical jack,Counterforce device is connected with bed bolt,Two adjacent faces of model box inside are equipped with horizontal addload plate A,Horizontal addload plate B,Horizontal addload plate A,Gap is equipped between horizontal addload plate B,And pass through the connection that is flexible coupling,It is equipped with wellbore model among the rectangle semitight babinet that model babinet surrounds,Wellbore model is surrounded by microsensor,Run through freezing pipe in wellbore model,Freezing pipe is refrigerated brine import by one end,The other end is to freeze brine loop to connect refrigeration machine,Microsensor connects monitoring instrument,Bottom plate is externally provided with incubator with the structure that pedestal surrounds,Three-dimensional load can be achieved,It is quick with assembling,The advantages that convenient disassembly and strong mobility.
Description
Technical field
The present invention relates to simulation experiment systems, and in particular to a kind of inclined shaft freezing construction borehole wall mechanical characteristic monitoring device.
Background technology
Currently, the monitoring device of domestic borehole wall mechanical characteristic of constructing not yet specifically for inclined shaft freezing, and due to inclined shaft
Freeze-wellboring is to be developed on the basis of Shaft Freezing method sinking shaft, and vertical freeze-wellboring and inclined shaft freezing method are dug
Well is inherently distinguishing, and Shaft Freezing method sinking shaft experience is not fully suitable for inclined shaft freezing method sinking shaft, inclined shaft freezing
The design of wall and the borehole wall can not be designed fully according to the design method of vertical, and people are for inclined shaft freezing method sinking shaft process
Present in some problems can not also explain completely.Frost wall development is advised during wanting to know about and grasping inclined shaft freezing method sinking shaft
Borehole wall stress rule etc., needs a large amount of data as support after rule, borehole wall stress rule, freezing pipe deformation rule and defrosting
Foundation, but Practical Project will be depending on on-site actual situations, it is impossible to inclined shaft freezing method sinking shaft is all used, this results in counting
It is more difficult according to collecting, and because of the difference of environment, there is also larger differences for the data of collection, and according to the simulation of similarity theory
Experiment can largely change the above situation, therefore design one specifically for inclined shaft freezing construction borehole wall mechanical characteristic prison
It is very necessary to survey device.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a kind of inclined shaft freezing construction borehole wall stress
Characteristic monitoring device the characteristics of for inclined shaft freezing method sinking shaft, voluntarily develops a set of inclined shaft freezing construction borehole wall mechanical characteristic
Monitoring device has many advantages, such as that quick assembling, convenient disassembly and mobility are strong, is inclined shaft freezing method, it can be achieved that three-dimensional load
Sinking shaft design and construction provides reasonable, accurate test basis, this pilot system has filled up domestic blank, reached domestically leading
It is horizontal.
To achieve the goals above, the technical solution adopted by the present invention is：
A kind of inclined shaft freezing is constructed borehole wall mechanical characteristic monitoring device, including model babinet, is connected between model babinet
At the rectangle semitight babinet of a upper opening, model babinet is connected with bottom plate, bolt of lower base, and does water-proofing treatment, model
Counter-force channel steel and mechanical jack are equipped on the outside of babinet, counterforce device is connected with bed bolt, and model box inside is adjacent
Two faces are equipped with horizontal addload plate A, horizontal addload plate B, horizontal addload plate A, are equipped with gap between horizontal addload plate B, and pass through
Be flexible coupling connection, is equipped with wellbore model among the rectangle semitight babinet that model babinet surrounds, wellbore model is surrounded by miniature
Sensor, wellbore model is interior to run through freezing pipe, and freezing pipe is refrigerated brine import by one end, and the other end is to freeze brine loop
Refrigeration machine is connected, microsensor connects monitoring instrument, and bottom plate is externally provided with incubator with the structure that pedestal surrounds；
The analog unit is semitight babinet, for placing simulation material, has the characteristics that convenient disassembly mobility is strong,
And channel steel itself has larger bearing capacity, can ensure the normal operation in loading procedure；
Horizontal addload the plate A, horizontal addload plate B and counter-force channel steel composition loading system composition, horizontal addload plate A are horizontal
Load plate B is directly placed in analog unit, can be applied pressure to horizontal addload plate A, horizontal addload plate B by jack, be led to
It crosses steel plate to connect the top plate of counter-force channel steel, is that vertical counterforce device applies vertical load to model babinet with steel plate；
The refrigeration machine cryogenic thermostat reactive bath technique and freezing pipe form inclined shaft freezing method sinking shaft freezing system, and minimum temperature can
Up to -30 DEG C, such material has the characteristics that intensity is high under corrosion-resistant, light-weight, good heat conductivity, low-temperature condition, is very suitable for
As the material of heat-exchange apparatus, use industrial alcohol as refrigerant agent in experimentation；
The temperature control system that the incubator and incubator is equipped with forms external environment simulation system, can simulate℃
Ambient temperature can be maintained at a certain steady state value by environment temperature, the system, to reduce shadow of the external environment to model test
It rings；
The monitoring instrument supervises pressure of freezing wall and pore water pressure by the miniature soil pressure cell of strain-type and osmometer
It surveys, measurement range is 0 ~ 0.6MPa, and is collected to data by statical strain indicator, using type vibration wire temperature sensor pair
Freeze wall temperature to be monitored.
The model babinet is made of 20#b channel steels, and pedestal is made of the welding of 50 × 50mm steel columns, horizontal addload plate A,
Horizontal addload plate B is by 1000 × 500 × 10mm（Length × width x thickness degree）Steel plate is made, and bottom plate is by 1400 × 1000 × 10mm（It is long
× width x thickness degree）Steel plate is made, and counterforce device is made of 20#b channel steels.
Described is flexible coupling for rubber or canvas.
The counter-force channel steel by crisscross " soil " font steel plate group at.
The freezing pipe is made of copper tube.
The beneficial effects of the invention are as follows：
With three-dimensional load, the remarkable advantages such as assembling is quick, convenient disassembly and mobility are strong, it can be achieved that inclined shaft freezing method sinking shaft
Simulation test overcomes insufficient and disadvantage in the prior art, is provided for inclined shaft freezing method sinking shaft design and construction reasonable, accurate
Test basis, this pilot system have filled up domestic blank, have reached domestically leading level.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Wherein, 1 is model babinet；2 be pedestal；3 be to be flexible coupling；4 be horizontal addload plate A；5 be mechanical jack；6 are
Horizontal addload plate B；With 3 between two pieces of load plates（Rubber slab or canvas）Connection；7 be bottom plate；8 be counter-force channel steel；9 be miniature biography
Sensor；10 be freezing pipe；11 be wellbore model；12 be refrigerated brine import；13 be to freeze brine loop；14 be refrigeration machine；15
For monitoring instrument；16 be incubator.
Specific implementation mode
The present invention is further discussed below below in conjunction with attached drawing.
The borehole wall mechanical characteristic monitoring device as shown in Figure 1, a kind of inclined shaft freezing is constructed, including model babinet 1, feature exists
In being connected with into the rectangle semitight babinet of a upper opening between model babinet 1, model babinet 1 and bottom plate 7, bottom
2 bolts of seat are connected, and do water-proofing treatment, and 1 outside of model babinet is equipped with counter-force channel steel 8 and mechanical jack 5, counterforce device 8
It is connected with 7 bolt of bottom plate, two adjacent faces of 1 inside of model babinet are equipped with horizontal addload plate A4, horizontal addload plate B6, horizontal
Gap is equipped between load plate A4, horizontal addload plate B6, and by 3 connections that are flexible coupling, the rectangle semitight that model babinet 1 surrounds
Wellbore model 11 is equipped among babinet, wellbore model 11 is surrounded by microsensor 9, runs through freezing pipe in wellbore model 11
10, freezing pipe 10 is refrigerated brine import 12 by one end, and the other end is to freeze brine loop 13 to connect refrigeration machine 14, miniature biography
Sensor 9 connects monitoring instrument 15, and bottom plate 7 is externally provided with incubator 16 with the structure that pedestal 2 surrounds；
The analog unit 1 is semitight babinet, for placing simulation material, with the strong spy of convenient disassembly mobility
Point, and channel steel itself has larger bearing capacity, can ensure the normal operation in loading procedure；
Horizontal addload the plate A4, horizontal addload plate B6 and counter-force channel steel 8 form loading system and form, horizontal addload plate A4,
Horizontal addload plate B6 is directly placed in analog unit 1, can be applied to horizontal addload plate A4, horizontal addload plate B6 by jack
Pressure is connected the top plate of counter-force channel steel 8 by steel plate, is that vertical counterforce device applies vertically model babinet with steel plate
Load；
The 14 cryogenic thermostat reactive bath technique of refrigeration machine and freezing pipe 10 form inclined shaft freezing method sinking shaft freezing system, minimum temperature
Reachable -30 DEG C, such material has the characteristics that intensity is high under corrosion-resistant, light-weight, good heat conductivity, low-temperature condition, very suitable
Cooperation is the material of heat-exchange apparatus, uses industrial alcohol as refrigerant agent in experimentation；
The temperature control system that the incubator 16 and incubator 16 is equipped with forms external environment simulation system, can simulateDEG C environment temperature, which can be maintained at ambient temperature a certain steady state value, to reduce external environment to model test
Influence；
The monitoring instrument 15 carries out pressure of freezing wall and pore water pressure by the miniature soil pressure cell of strain-type and osmometer
Monitoring, measurement range is 0 ~ 0.6MPa, and is collected to data by statical strain indicator, using type vibration wire temperature sensor
It is monitored to freezing wall temperature.
The model babinet is made of 20#b channel steels, and pedestal 2 is made of the welding of 50 × 50mm steel columns, horizontal addload plate A,
Horizontal addload plate B is made of 1000 × 500 × 10mm long × width x thickness degree steel plate, and bottom plate is by 1400 × 1000 × 10mm long × wide
× thickness steel plate is made, and counterforce device is made of 20#b channel steels.
Described is flexible coupling 3 for rubber or canvas.
The counter-force channel steel 8 by crisscross " soil " font steel plate group at.
The freezing pipe 9 is made of copper tube.
The present invention operation principle be：
The present apparatus reduces according to a certain percentage according to similarity theory, by Practical Project, analog material is determined, according to reality
Engineering freezing pipe and pit shaft lay mode and lay freezing pipe and pit shaft in model casing body, and install borehole wall force sensor.
After experiment is ready to complete, freezing system is opened, when sand temperature reaches set temperature, carries out Shaft Excavation, and record excavation
Borehole wall stress data in the process can be obtained inclined shaft freezing construction borehole wall mechanical characteristic by data analysis.
Claims (5)
- The borehole wall mechanical characteristic monitoring device 1. a kind of inclined shaft freezing is constructed, including model babinet（1）, which is characterized in that model casing Body（1）Between be connected with into the rectangle semitight babinet of a upper opening, model babinet（1）With bottom plate（7）, pedestal （2）Bolt is connected, and does water-proofing treatment, model babinet（1）Outside is equipped with counter-force channel steel（8）And mechanical jack（5）, counter-force Device（8）With bottom plate（7）Bolt is connected, model babinet（1）Two adjacent faces of inside are equipped with horizontal addload plate A（4）, horizontal to add Support plate B（6）, horizontal addload plate A（4）, horizontal addload plate B（6）Between be equipped with gap, and by being flexible coupling（3）Connection, model Babinet（1）It is equipped with wellbore model among the rectangle semitight babinet surrounded（11）, wellbore model（11）It is surrounded by micro sensing Device（9）, wellbore model（11）It is interior to run through freezing pipe（10）, freezing pipe（10）It is refrigerated brine import by one end（12）, another End is to freeze brine loop（13）Connect refrigeration machine（14）, microsensor（9）Connect monitoring instrument（15）, bottom plate（7）The bottom of with Seat（2）The structure surrounded is externally provided with incubator（16）；The analog unit（1）For semitight babinet, for placing simulation material；The horizontal addload plate A（4）, horizontal addload plate B（6）With counter-force channel steel（8）Form loading system composition, horizontal addload Plate A（4）, horizontal addload plate B（6）It is directly placed at analog unit（1）It is interior, it can be to horizontal addload plate A by jack（4）, water Flat load plate B（6）Apply pressure, by steel plate by counter-force channel steel（8）Top plate connect, with steel plate be vertical counterforce device Vertical load is applied to model babinet；The refrigeration machine（14）（Cryogenic thermostat reactive bath technique）And freezing pipe（10）Inclined shaft freezing method sinking shaft freezing system is formed, most Reachable -30 DEG C of low temperature；The incubator（16）And incubator（16）The temperature control system composition external environment simulation system being equipped with, can simulate 'sAmbient temperature can be maintained at a certain steady state value by DEG C environment temperature, the system, be tried model with reducing external environment The influence tested；The monitoring instrument（15）By the miniature soil pressure cell of strain-type and osmometer to pressure of freezing wall and pore water pressure into Row monitoring, measurement range is 0 ~ 0.6MPa, and is collected to data by statical strain indicator, using type vibration wire temperature sensing Device is monitored to freezing wall temperature.
- The borehole wall mechanical characteristic monitoring device 2. a kind of inclined shaft freezing according to claim 1 is constructed, which is characterized in that institute The model babinet stated is made of 20#b channel steels, pedestal（2）It is made of the welding of 50 × 50mm steel columns, horizontal addload plate A（4）, horizontal Load plate B（6）By 1000 × 500 × 10mm（Length × width x thickness degree）Steel plate is made, bottom plate（7）By 1400 × 1000 × 10mm （Length × width x thickness degree）Steel plate is made, counter-force channel steel（8）It is made of 20#b channel steels.
- The borehole wall mechanical characteristic monitoring device 3. a kind of inclined shaft freezing according to claim 1 is constructed, which is characterized in that institute That states is flexible coupling（3）For rubber or canvas.
- The borehole wall mechanical characteristic monitoring device 4. a kind of inclined shaft freezing according to claim 1 is constructed, which is characterized in that institute The counter-force channel steel stated（8）By crisscross " soil " font steel plate group at.
- The borehole wall mechanical characteristic monitoring device 5. a kind of inclined shaft freezing according to claim 1 is constructed, which is characterized in that institute The freezing pipe stated（9）It is made of copper tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810132088.0A CN108387334A (en) | 2018-02-09 | 2018-02-09 | A kind of inclined shaft freezing construction borehole wall mechanical characteristic monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810132088.0A CN108387334A (en) | 2018-02-09 | 2018-02-09 | A kind of inclined shaft freezing construction borehole wall mechanical characteristic monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108387334A true CN108387334A (en) | 2018-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810132088.0A Pending CN108387334A (en) | 2018-02-09 | 2018-02-09 | A kind of inclined shaft freezing construction borehole wall mechanical characteristic monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108387334A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163977A (en) * | 2018-08-28 | 2019-01-08 | 中国矿业大学 | Ground pressure and hydraulic pressure combination loading slopes wall force simulation pilot system and method |
| CN109557128A (en) * | 2018-12-10 | 2019-04-02 | 重庆大学 | A kind of simulation test case for frozen construction |
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| CN102943663A (en) * | 2012-12-05 | 2013-02-27 | 兖矿集团有限公司 | Device and method for measuring pressure of wall of inclined shaft |
| CN204964428U (en) * | 2015-10-14 | 2016-01-13 | 中国矿业大学 | Inclined shaft freezes to test pit shaft support |
| CN106884651A (en) * | 2017-03-07 | 2017-06-23 | 中国矿业大学 | A kind of slopes wall concrete bottom board prestress loading device |
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Patent Citations (6)
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| JP2001178444A (en) * | 1999-10-13 | 2001-07-03 | Yasui Kikai Kk | Method for crushing and apparatus therefor |
| JP4793646B2 (en) * | 2006-07-14 | 2011-10-12 | 清水建設株式会社 | Construction method of tank facility in low temperature rock mass |
| CN102943663A (en) * | 2012-12-05 | 2013-02-27 | 兖矿集团有限公司 | Device and method for measuring pressure of wall of inclined shaft |
| CN204964428U (en) * | 2015-10-14 | 2016-01-13 | 中国矿业大学 | Inclined shaft freezes to test pit shaft support |
| CN206282464U (en) * | 2016-08-31 | 2017-06-27 | 兰州资源环境职业技术学院 | A kind of underground engineering frozen construction actual training device |
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| 李岩: "竖向直排冻结斜井模拟试验及冻土稳定性研究", 《中国博士学位论文全文数据库 工程科技I辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163977A (en) * | 2018-08-28 | 2019-01-08 | 中国矿业大学 | Ground pressure and hydraulic pressure combination loading slopes wall force simulation pilot system and method |
| CN109557128A (en) * | 2018-12-10 | 2019-04-02 | 重庆大学 | A kind of simulation test case for frozen construction |
| CN109557128B (en) * | 2018-12-10 | 2021-06-29 | 重庆大学 | Simulation test box for freezing construction |
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Application publication date: 20180810 |
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