CN204008645U - A kind of terrestrial stress charger that is applicable to slip casting model test - Google Patents
A kind of terrestrial stress charger that is applicable to slip casting model test Download PDFInfo
- Publication number
- CN204008645U CN204008645U CN201420216054.7U CN201420216054U CN204008645U CN 204008645 U CN204008645 U CN 204008645U CN 201420216054 U CN201420216054 U CN 201420216054U CN 204008645 U CN204008645 U CN 204008645U
- Authority
- CN
- China
- Prior art keywords
- water pocket
- water
- model test
- pressure
- slip casting
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of terrestrial stress charger that is applicable to slip casting model test, comprise a head tank communicating with model test top of the trellis; Described head tank is provided with 3 interfaces and a pressure relief valve, first interface is connected for it provides the air compressor machine of pressure with one, the second interface is communicated with the water pocket at the top of model test frame, for the medium in model test frame provides pressure, the 3rd interface is connected for it provides the water pump at water source with one.In the process of water pocket distortion, air pressure and hydraulic pressure in head tank maintain substantially constant, realize water pocket and surrounding rocks cooperative transformation and maintain constant loading stress constant.
Description
Technical field
The utility model relates to a kind of terrestrial stress charger that is applicable to slip casting model test.
Background technology
In the underground workss such as tunnel, slip casting has obtained application more and more widely as a kind of effective means of reinforcing weak broken wall rock shutoff underground water.Slip casting model test is the Diffusion Law of slurries in stratum and the important method of fixed reinforcement mechanism in research slip casting process.Most of Grouting engineerings are all to implement in the country rock that has certain thickness superincumbent stratum, and terrestrial stress be can not ignore the impact of slip casting process, but to being applied to the terrestrial stress charger of slip casting model test, lack research at present.
In Grouting engineering, the terrestrial stress in grouting and reinforcing region remains unchanged substantially, and because the relation of slip casting, the volume of being noted medium constantly increases.If adopt fixed model border, model volume is immutable, and model boundary bears the passive pressure that slip casting causes in slip casting process, and the numerical value of passive pressure is along with the carrying out of slip casting constantly changes, and this does not meet reservoir stress state actual in slip casting process; If employing rigidity load mode is to being loaded by note medium, although can guarantee that applied total stress keeps constant, rigid pressure head can not be noted medium cooperative transformation with quilt, causes stress loading uneven, can not meet requirement of experiment.In sum, also do not have at present to realize with grouting and reinforcing body cooperative transformation and can maintain the terrestrial stress charger that is applicable to slip casting model test of constant pressure.
Utility model content
The purpose of this utility model is to provide a kind of terrestrial stress charger and using method thereof that is applicable to slip casting model test, and this device can be realized terrestrial stress constant in slip casting process and load, and with grouting and reinforcing body cooperative transformation.There is the advantages such as simple in structure, easy to operate, reusable.
For achieving the above object, the utility model is by the following technical solutions:
Be applicable to a terrestrial stress charger for slip casting model test, comprise a head tank communicating with model test top of the trellis; Described head tank is provided with 3 interfaces and a pressure relief valve, first interface is connected for it provides the air compressor machine of pressure with one, the second interface is communicated with the water pocket at the top of model test frame, for the medium in model test frame provides pressure, the 3rd interface is connected for it provides the water pump at water source with one.
First interface is connected with the pressure governor of air compressor machine, and the second interface is connected with water-delivery valve, and water-supply-pipe connects water-delivery valve and water pocket, and tensimeter monitoring hydraulic pressure is set on water-supply-pipe; On the 3rd interface, induction valve door is installed, induction valve door is connected by flow pipe with water pump.
Air compressor machine is by pressure governor regulation output pressure, and output pressure scope is 0～5MPa.
Described water-supply-pipe is connected with the connecting pipe in entering into water pocket by a movable joint, described welding chassis, connecting pipe bottom, and connecting pipe chassis and water pocket circular open position are bonding.
Described water pocket employing thin-walled, the elastomeric material that deformation performance is splendid, survivability is strong are made, and water pocket is shaped as cylindrical, and centre arranges circular open.
The surrounding of described water pocket is provided with retaining wall, and water pocket diameter equates with water pocket retaining wall internal diameter, and water pocket height equates with the distance between filled out surrounding rocks and water pocket retaining wall inwall, thereby guarantees the laminating of water pocket and water pocket retaining wall inwall and the surrounding rocks of filling out.
Water pocket retaining wall bears the counter-force effect producing in water pocket pressure process, and the top cover of water pocket retaining wall arranges the floor of square crossing, and water pocket retaining wall arranges wing plate, and bolt hole is set on wing plate, and water pocket retaining wall and model test stand are bolted.
A terrestrial stress charger using method that is applicable to slip casting model test, comprising:
Step 1: connecting line.By first interface and the air compressor machine on gas piping Bonding pressure tank top; By the 3rd interface and water pump of flow pipe Bonding pressure tank; By water-supply-pipe Bonding pressure tank bottom the 3rd interface and movable joint, water-delivery valve and tensimeter are set on water-supply-pipe;
Step 2: water pocket is installed.Model test stand is carried out to filler built-in slip casting pipe, lubricating fluid is evenly smeared at the position contacting with water pocket at water pocket retaining wall, water pocket and water pocket retaining wall are installed, by bolt, water pocket retaining wall and model test stand are fixed, by movable joint, connect water-supply-pipe and connecting pipe;
Step 3: open induction valve door, water-delivery valve and water pump, close induction valve door and water pump while storing certain water gaging in water, head tank when water pocket is full of;
Step 4: apply terrestrial stress.Open air compressor machine and regulate pressure governor to make head tank inside reach the air pressure of appointment, air pressure is delivered to surrounding rocks surrounding rocks is applied to constant terrestrial stress, and surrounding rocks fixed a period of time under terrestrial stress effect reaches steady state (SS).
Step 5: carry out grouting test.Open slip casting valve and grouting pump surrounding rocks is carried out to slip casting, after reaching the desired slip casting ending standard of test, stop slip casting, after slip casting, standing a period of time is completely fixed to slurries.
Step 6: pressure release.Close air compressor machine and open the pressure relief valve on head tank, the terrestrial stress loading before unloading, carries out the follow-up works such as form removal afterwards.
In the process of water pocket distortion, the air pressure in head tank and hydraulic pressure remain constant, water pocket and surrounding rocks cooperative transformation to maintain constant loading stress constant.
Stent support head tank is made and arranged to head tank by the thick steel plate of 10mm;
Water pocket retaining wall bears the counter-force effect producing in water pocket pressure process, water pocket retaining wall adopts the thick steel plate of 10mm to make by welding, the top cover of water pocket retaining wall arranges the strength and stiffness of the floor raising structure of square crossing, water pocket retaining wall arranges wing plate, bolt hole is set on wing plate, and water pocket retaining wall and model test stand are bolted.
In terrestrial stress loading procedure, in head tank, bottom is water, and top is air, relies on air compressor machine that air pressure is provided, and air pressure is converted into effect of water pressure in water pocket, and the hydraulic pressure in water pocket is delivered on surrounding rocks, thereby realize terrestrial stress, loads.Water pocket and water pocket retaining wall inwall and the surrounding rocks of filling out fit tightly, in surrounding rocks consolidation process, and surrounding rocks volumetric contraction, the strain of water pocket volume phase is large, and in slip casting process, because slurries enter the volume that surrounding rocks causes surrounding rocks, becoming large, water pocket volume can correspondingly dwindle.In the process of water pocket distortion, air pressure and hydraulic pressure in head tank maintain substantially constant, realize water pocket and surrounding rocks cooperative transformation and maintain constant loading stress constant.
The beneficial effects of the utility model are as follows:
This terrestrial stress charger can be realized terrestrial stress constant in slip casting process and load, and with grouting and reinforcing body cooperative transformation, there is the advantages such as simple in structure, easy to operate, reusable.
Accompanying drawing explanation
Fig. 1 is terrestrial stress loading system one-piece construction figure;
Fig. 2 is water pocket and water pocket retaining wall sectional view;
Fig. 3 is water pocket retaining wall vertical view;
In figure: 1---head tank; 2---air compressor machine; 3---water pump; 4---water pocket retaining wall; 5---water pocket; 6---connecting pipe; 7---movable joint; 8---water-supply-pipe; 9---the second interface; 10---water-delivery valve; 11---the 3rd interface; 12---induction valve door; 13---flow pipe; 14---first interface; 15---gas piping; 16---pressure governor; 17---support; 18---bolt; 19---air; 20---water; 21---tensimeter; 22---model test frame; 23---Grouting Pipe; 24---slip casting valve; 25---grouting pump; 26---slurry arteries and veins; 27---floor; 28---bolt hole; 29---wing plate; 30---top cover, 31---pressure relief valve; 32---surrounding rocks.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.Following explanation is only in order to explain the utility model, its content is not limited.
Be applicable to a terrestrial stress charger for slip casting model test, this device comprises air compressor machine 2, head tank 1, water pump 3, water pocket 5, water pocket retaining wall 4 and other connecting elements.Support 17 abutment pressure tanks 1 are made and arranged to head tank 1 by the thick steel plate of 10mm, and head tank 1 arranges 3 interfaces and a pressure relief valve 31, and head tank 1 is connected with the pressure governor 16 of air compressor machine 2 by first interface 14; By the second interface 9, be connected with water-delivery valve 10, water-supply-pipe 8 connects water-delivery valve 10 and water pocket 5, and tensimeter 21 monitoring hydraulic pressure are set on water-supply-pipe 8; On the 3rd interface 11, induction valve door 12 is installed, induction valve door 12 is connected by flow pipe 13 with water pump 3.Connecting pipe 6 welding chassis, bottom, connecting pipe 6 chassis and water pocket 5 circular open positions connect by AB is gluing, and connecting pipe 6 is connected by movable joint 7 with water-supply-pipe 8.
Air compressor machine 2 is by pressure governor 16 regulation output pressure, and output pressure scope is 0～5MPa.
Water pocket 5 employing thin-walleds, the elastomeric material that deformation performance is splendid, survivability is strong are made, and water pocket 5 is shaped as cylindrical, and centre arranges circular open.Water pocket 5 diameters equate with water pocket retaining wall 4 internal diameters, and water pocket 5 height equate with the distance between filled out surrounding rocks 32 and water pocket retaining wall 4 inwalls, thereby guarantee that water pocket 5 and water pocket retaining wall 4 inwalls and the surrounding rocks of filling out 32 fit tightly.Lubricating fluid is evenly smeared at the position contacting with water pocket 5 at water pocket retaining wall 4, the skin friction drag being subject to while reducing water pocket 5 distortion.
Water pocket retaining wall 4 bears the counter-force effect producing in water pocket 5 pressure processes, water pocket retaining wall 4 adopts the thick steel plate of 10mm to make by welding, the top cover 30 of water pocket retaining wall 4 arranges the strength and stiffness of the floor 27 raising structures of square crossing, water pocket retaining wall 4 arranges wing plate 29, bolt hole 28 is set on wing plate 29, and water pocket retaining wall 4 is connected by bolt 18 with model test stand.
Slip casting model test is used single Grouting Pipe to implement slip casting in the viscous soil horizon that is subject to 3MPa terrestrial stress, and injecting paste material is single liquid grout.
Be applicable to the terrestrial stress charger using method of slip casting model test, specific as follows:
Step 1: connecting line.By gas piping 15 Bonding pressure tank 1 first interfaces 14 and air compressor machine 2; By the 3rd interface 11 and water pump 3 of flow pipe 13 Bonding pressure tanks 1; By water-supply-pipe 8 Bonding pressure tank 1 second interfaces 9 and movable joint 7, water-delivery valve 10 and tensimeter 21 are set on water-supply-pipe 8.
Step 2: water pocket 5 is installed.Model test stand is carried out to filler built-in slip casting pipe 23, lubricating fluid is evenly smeared at the position contacting with water pocket 5 at water pocket retaining wall 4, water pocket 5 and water pocket retaining wall 4 are installed, by bolt 18, water pocket retaining wall 4 and model test stand are fixed, by movable joint 7, connect water-supply-pipe 8 and connecting pipe 6.
Step 3: open induction valve door 12, water-delivery valve 10 and water pump 3, close induction valve door 12 and water pump 3 while storing certain water gaging in water, head tank 1 when water pocket 5 is full of.
Step 4: apply terrestrial stress.Open air compressor machine 2 and regulate pressure governor 16 to make head tank 1 inside reach the air pressure of appointment, air pressure is delivered to 32 pairs of surrounding rocks 32 of surrounding rocks and applies constant terrestrial stress, and surrounding rocks 32 fixed a period of time under terrestrial stress effect reaches steady state (SS).
Step 5: carry out grouting test.Open 25 pairs of surrounding rocks of slip casting valve 24 and grouting pump 32 and carry out slip casting, after reaching the desired slip casting ending standard of test, stop slip casting, after slip casting, standing a period of time is completely fixed to slurries.
Step 6: pressure release.Close air compressor machine 2 and open the pressure relief valve 31 on head tank 1, the terrestrial stress loading before unloading, carries out the follow-up works such as form removal afterwards.
Water pocket 5 employing thin-walleds, the elastomeric material that deformation performance is splendid, survivability is strong are made, and water pocket 5 is shaped as cylindrical, and centre arranges circular open.
In the process of water pocket 5 distortion, air pressure and hydraulic pressure in head tank 1 maintain substantially constant, water pocket 5 and surrounding rocks 32 cooperative transformations to maintain constant loading stress constant.
Claims (7)
1. a terrestrial stress charger that is applicable to slip casting model test, is characterized in that: comprise a head tank communicating with model test top of the trellis; Described head tank is provided with 3 interfaces and a pressure relief valve, first interface is connected for it provides the air compressor machine of pressure with one, the second interface is communicated with the water pocket at the top of model test frame, for the medium in model test frame provides pressure, the 3rd interface is connected for it provides the water pump at water source with one.
2. the terrestrial stress charger that is applicable to slip casting model test as claimed in claim 1, it is characterized in that: first interface is connected with the pressure governor of air compressor machine, the second interface is connected with water-delivery valve, and water-supply-pipe connects water-delivery valve and water pocket, and tensimeter monitoring hydraulic pressure is set on water-supply-pipe; On the 3rd interface, induction valve door is installed, induction valve door is connected by flow pipe with water pump.
3. the terrestrial stress charger that is applicable to slip casting model test as claimed in claim 2, is characterized in that: air compressor machine is by pressure governor regulation output pressure.
4. the terrestrial stress charger that is applicable to slip casting model test according to claim 2, it is characterized in that, described water-supply-pipe is connected with the connecting pipe in entering into water pocket by a movable joint, described welding chassis, connecting pipe bottom, and connecting pipe chassis and water pocket circular open position are bonding.
5. the terrestrial stress charger that is applicable to slip casting model test as claimed in claim 1, it is characterized in that: described water pocket employing thin-walled, the elastomeric material that deformation performance is splendid, survivability is strong are made, water pocket is shaped as cylindrical, and centre arranges circular open.
6. the terrestrial stress charger that is applicable to slip casting model test as described in claim 1 or 4, it is characterized in that, the surrounding of described water pocket is provided with retaining wall, water pocket diameter equates with water pocket retaining wall internal diameter, water pocket height equates with the distance between filled out surrounding rocks and water pocket retaining wall inwall, to guarantee the laminating of water pocket and water pocket retaining wall inwall and the surrounding rocks of being filled out.
7. the terrestrial stress charger that is applicable to slip casting model test as claimed in claim 6, it is characterized in that, water pocket retaining wall bears the counter-force effect producing in water pocket pressure process, the floor of square crossing is set at the top cover of water pocket retaining wall, water pocket retaining wall arranges wing plate, bolt hole is set on wing plate, and water pocket retaining wall and model test stand are bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420216054.7U CN204008645U (en) | 2014-04-30 | 2014-04-30 | A kind of terrestrial stress charger that is applicable to slip casting model test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420216054.7U CN204008645U (en) | 2014-04-30 | 2014-04-30 | A kind of terrestrial stress charger that is applicable to slip casting model test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204008645U true CN204008645U (en) | 2014-12-10 |
Family
ID=52048625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420216054.7U Expired - Fee Related CN204008645U (en) | 2014-04-30 | 2014-04-30 | A kind of terrestrial stress charger that is applicable to slip casting model test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204008645U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954745A (en) * | 2014-04-30 | 2014-07-30 | 山东大学 | Crustal stress loading device suitable for grouting model test and using method of crustal stress loading device |
| CN106567416A (en) * | 2016-10-19 | 2017-04-19 | 重庆大学 | Model test device of excavating tunnel in transparent soil foundation and test method |
| CN106644836A (en) * | 2017-03-01 | 2017-05-10 | 山东大学 | Visual fracturing grouting model testing device and testing method thereof |
| CN106885758A (en) * | 2017-03-01 | 2017-06-23 | 山东大学 | One kind visualization fracture grouting diffusion process simulation test device and application method |
| CN107782641A (en) * | 2017-11-24 | 2018-03-09 | 中国矿业大学 | A kind of loose media osmotic grouting simulation test device |
| CN108051351A (en) * | 2017-11-24 | 2018-05-18 | 中国矿业大学 | A kind of loose media osmotic grouting simulation experiment method |
| CN108663319A (en) * | 2018-07-25 | 2018-10-16 | 南京林业大学 | Soil is pushed in one kind and the adjustable clay of contact area sticks force test device and test method |
| CN109085117A (en) * | 2018-07-25 | 2018-12-25 | 南京林业大学 | A kind of area controllably and pushes the cover-plate type loaded and sticks force test device and test method |
-
2014
- 2014-04-30 CN CN201420216054.7U patent/CN204008645U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954745A (en) * | 2014-04-30 | 2014-07-30 | 山东大学 | Crustal stress loading device suitable for grouting model test and using method of crustal stress loading device |
| CN103954745B (en) * | 2014-04-30 | 2015-11-25 | 山东大学 | A kind of terrestrial stress charger and using method thereof being applicable to slip casting model test |
| CN106567416A (en) * | 2016-10-19 | 2017-04-19 | 重庆大学 | Model test device of excavating tunnel in transparent soil foundation and test method |
| CN106567416B (en) * | 2016-10-19 | 2019-01-18 | 重庆大学 | The model test apparatus and test method of tunnel excavation in a kind of transparent soil base |
| CN106644836A (en) * | 2017-03-01 | 2017-05-10 | 山东大学 | Visual fracturing grouting model testing device and testing method thereof |
| CN106885758A (en) * | 2017-03-01 | 2017-06-23 | 山东大学 | One kind visualization fracture grouting diffusion process simulation test device and application method |
| CN107782641A (en) * | 2017-11-24 | 2018-03-09 | 中国矿业大学 | A kind of loose media osmotic grouting simulation test device |
| CN108051351A (en) * | 2017-11-24 | 2018-05-18 | 中国矿业大学 | A kind of loose media osmotic grouting simulation experiment method |
| CN107782641B (en) * | 2017-11-24 | 2019-06-07 | 中国矿业大学 | A kind of loose media osmotic grouting simulation test device |
| CN108051351B (en) * | 2017-11-24 | 2019-06-07 | 中国矿业大学 | A kind of loose media osmotic grouting simulation experiment method |
| CN108663319A (en) * | 2018-07-25 | 2018-10-16 | 南京林业大学 | Soil is pushed in one kind and the adjustable clay of contact area sticks force test device and test method |
| CN109085117A (en) * | 2018-07-25 | 2018-12-25 | 南京林业大学 | A kind of area controllably and pushes the cover-plate type loaded and sticks force test device and test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204008645U (en) | A kind of terrestrial stress charger that is applicable to slip casting model test | |
| CN103954745B (en) | A kind of terrestrial stress charger and using method thereof being applicable to slip casting model test | |
| CN201037835Y (en) | Water pressure loading device for surficial terrane equally loaded conversion | |
| CN105842424B (en) | Three-dimensional stress seepage flow coupling grouting pilot system and method | |
| CN209878238U (en) | Steel pipeline hydrostatic testing machine | |
| CN103195110A (en) | Stable bucket-shaped foundation sinking negative pressure testing device | |
| CN204212751U (en) | Reusable dynamic underbalance perforating decompressor | |
| CN201535439U (en) | Carbon dioxide gas supercharging device | |
| CN104614495A (en) | Water outburst and mud outburst testing device for high pressure-bearing tunnel | |
| CN104234217B (en) | Light-duty pressure grouting device for overall and grout construction method thereof | |
| CN205136714U (en) | Ejector pin formula back pressure system | |
| CN107387105B (en) | Soil pressure shield bentonite pressure maintaining equipment and method | |
| CN203629964U (en) | Test device for stimulating high-earth pressure condition by using bentonite slurry for pressurizing | |
| CN110411906B (en) | Three-dimensional adjustable high-bearing-pressure large-flowing-water grouting system and test method | |
| CN204040219U (en) | Light-duty pressure grouting device for overall | |
| CN203465082U (en) | Test stand for stop valve of hydraulic bracket | |
| CN219830724U (en) | High-pressure sealing grouting experiment system | |
| CN201672243U (en) | Device of LNG filling station with automatic pressure reducing function | |
| CN203230400U (en) | Split type multifunctional dosing device for oil field | |
| CN206710267U (en) | A kind of underground water inverse osmosis analogue means | |
| CN204530715U (en) | Slip casing by pressure structure | |
| CN204201436U (en) | Automatic oil supplying device | |
| CN110045090A (en) | A kind of similarity simulation experiment grouting device | |
| CN203190029U (en) | Liquid fuel storage and usage device | |
| CN205084808U (en) | Support arrangement for crawler shoe mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160430 |