CN108824502A - A kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method - Google Patents
A kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method Download PDFInfo
- Publication number
- CN108824502A CN108824502A CN201810729548.8A CN201810729548A CN108824502A CN 108824502 A CN108824502 A CN 108824502A CN 201810729548 A CN201810729548 A CN 201810729548A CN 108824502 A CN108824502 A CN 108824502A
- Authority
- CN
- China
- Prior art keywords
- weak soil
- pressure plate
- cylinder
- soil
- test
- 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.)
- Pending
Links
- 239000002689 soil Substances 0.000 title claims abstract description 107
- 238000012360 testing method Methods 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000012545 processing Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 63
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000011148 porous material Substances 0.000 claims description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000009933 burial Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method, including：Weak soil apparatus for placing, including the test cylinder for holding test weak soil and for the sealing film of sealing and the pressure plate of pressurization；Support device, support device are arranged outside weak soil apparatus for placing, and lower end and weak soil apparatus for placing bottom are affixed, and top is installed for applying stressed loading device to the pressure plate of weak soil apparatus for placing；Loading device, including pressure exerting arrangement and transmission rod, force application mechanism are mounted on the top of support frame；Vacuum evacuation device, including vacuum pump and communicating pipe.Present invention has the advantages that：Vacuum preloading, piling prepressing can be carried out respectively or carries out piling prepressing and three kinds of vacuum preloading tests simultaneously, and piling prepressing load is easy to apply, and pressure value remains unchanged in the entire experiment process；Structure is simpler, easy to operate.
Description
Technical field
The present invention relates to a kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method.
Background technique
With the rapid development of economic construction of China, coastal area land resource is more and more nervous, and Devoting Major Efforts To Developing utilizes edge
Extra large Tidal Flat Resources can alleviate significantly or fundamentally solve the contradiction that coastal area is had a large population and a few land.However, mudflat sludge water content
Height, low bearing capacity, compressibility are big, must carry out processing to it before development and utilization and just be able to satisfy engine request.Vacuum preloading, heap
It carries precompressed or vacuum-heaped united pre-compressed method is the common method for handling large-area soft foundation.To study these three methods
Precompressed mechanism, design method, construction technology and treatment effect can carry out vacuum preloading, piling prepressing or vacuum-preloading indoors
Joint preloading model test.
Vacuum method is that vertical plastic draining board or sand drain are arranged in bury, upper sand bedding, then covers film envelope
It closes, pumping makes film internal drainage band, layer of sand etc. be in partial vacuum, excludes the moisture in soil, makes native consolidation in advance to reduce
A kind of method for processing foundation of ground posterior settlement.Preloading is promoted by applying external load on soft soil foundation surface
Soil body pore water is slowly discharged, and soil body pore water pressure gradates as effective stress, foundation soil body generation consolidation settlement change
Shape, to reach the purpose of improving soft base compactness, intensity and foundation bearing capacity.Vacuum-heaped united pre-compressed method is comprehensive true
Two kinds of construction technologies of empty precompressed and piling prepressing, a kind of method for processing foundation integrated and carried out simultaneously.This method can accelerate soil
The discharge of body pore water, accelerates soil body pore water pressure to be converted into effective stress, accelerates foundation soil body consolidation, to reach quick
Improve compactness, the purpose of intensity and foundation bearing capacity of weak soil.However, these three foundation treatment technology theoretical researches are much fallen
Afterwards in engineering practice.
Summary of the invention
The present invention is directed to above-mentioned existing problem and shortage, and the technical issues of solution is to provide a kind of pre- for weak soil
The Multi-functional indoor model test apparatus of platen press processing, by applying vacuum preloading, piling prepressing or vacuum-respectively in soil sample
Preloading joint preloading load, to carry out laboratory test.
A kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method of the present invention, feature exist
In, including：
Weak soil apparatus for placing, including the test cylinder for holding test weak soil and for the pressure plate of pressurization and for close
The sealing element of envelope, test cylinder are placed in support device, bottom end seal, the sealing element of the equipped sealing of upper end open-mouth and pressurization
Pressure plate, and pressure plate is axially moved down along test cylinder.Both sealing element and test cylinder surround the examination of the sealing for holding weak soil
Test chamber；
Support device, support device are arranged outside weak soil apparatus for placing, and lower end and weak soil apparatus for placing bottom are affixed,
It installs for applying stressed loading device to the pressure plate of weak soil apparatus for placing on its top；
Loading device, including force application mechanism and transmission rod, the force application mechanism are mounted on the top of support frame, and exert a force
The force side of mechanism is detachably connected with by the pressure plate of transmission rod and weak soil apparatus for placing, for providing one along cylinder to pressure plate
The pressure of body vertical axial；
The suction inlet of vacuum evacuation device, including vacuum pump and communicating pipe, intermediate pump is tried by communicating pipe and sealing
Chamber connection is tested, for leakage test chamber to be evacuated environment.
It further include the test device for measuring weak soil performance parameter, the test device includes for measuring weak soil compression
The displacement sensor of amount, the sensor for pore water pressure for measuring pore water pressure, the soil pressure case for measuring soil pressure and
Data collecting instrument, institute's displacement sensors are arranged on pressure plate, and the sensor for pore water pressure, the soil pressure case are arranged soft
In soil；The signal output end of institute's displacement sensors, the signal output end of the sensor for pore water pressure and the soil pressure case
Signal output end be electrically connected respectively with the signal input part of the data collecting instrument.
The test cylinder bottom end seal, upper end-face edge turn down the upper edge for forming an annular outward；Filling in the test cylinder
Weak soil；The upper end cover dress pressure plate and sealing element of the test cylinder, wherein sealing element is for realizing between soil sample and test cylinder
Sealing.
The test cylinder includes cylinder and pedestal, and wherein cylinder body bottom seals affixed with pedestal, forms lower end closure upper end
Open structure, and in the equipped pressure plate of upper end open-mouth and for the sealing element of sealing.
The sealing element is the sealing film for being covered on weak soil surface, and sealing membrane edge edge is extended over upper along surface, and is led to
It crosses bolt, the cover board for being pressed in mounting platform surface and rubber sheet gasket and mounting platform face seal is affixed；Sealing film is adjacent to examination
An inner wall and pressure plate contact position are tested, and there are extra fold surplus, guarantees not destroy when pressure plate is axially moved down along test cylinder
Seal film.
The pressure plate is equipped with the through-hole bolt that can be connected to inside and outside pressure plate, and through-hole bolt end each equipped one
For realizing the gasket and nut for fixing of sealing, the sealed channel of open channel for forming through-hole bolt.
Drainage arrangement is equipped in weak soil in test cylinder, wherein the collection water end (W.E.) of drainage arrangement passes through collector pipe and through-hole bolt
The communication port of inner end is connected to；The communication port of through-hole bolt outer end passes through the suction inlet pipeline connection of communicating pipe and vacuum evacuation device.
The force application mechanism includes eccentric lever, counterweight and scale pan, and the eccentric lever is hinged on support
The top of device, wherein eccentric lever one end is fixedly mounted with counterweight, and the other end installs the scale pan for placing counterweight；Eccentric lever
Non-articulated at and transmission rod one end it is hinged, the other end and the pressure plate of transmission rod are detachably connected with.
The support device includes pedestal, pull rod and mounting rack, and the pull rod bottom end and pedestal are affixed, the installation of pull rod top
Mounting rack, and mounting rack is equipped with the articulated section for hinged eccentric lever.
The cylinder is circular metal or stainless steel cylinder.
The drainage arrangement is drain bar and collector pipe, wherein in drain bar insertion weak soil, and is realized and is arranged by collector pipe
Water plate is connected to through-hole bolt inner end opening line.
The present invention utilizes principle of effective stress, first carries out soil sample, plastic draining board, testing element, vacuum evacuation device etc.
Installation, then setting sealing film is sealed weak soil sample, by loading device, vacuum evacuation device to soil sample piling prepressing, true
Empty precompressed carries out vacuum and piling prepressing simultaneously, to realize piling prepressing, vacuum preloading or Vacuum-Heaped United Pre-compressed three
Kind test.
The beneficial effects of the invention are as follows：The multifunction test device can carry out vacuum preloading, piling prepressing or vacuum-respectively
Preloading joint preloading, piling prepressing load is easy to apply, and pressure value remains unchanged in the entire experiment process；Seal film setting
In pressure plare in the following, reducing the use of sealing ring, the complexity of test structure is greatly reduced, makes experimental rig structure more
Simply, easy to operate.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is base schematic diagram provided in an embodiment of the present invention.
Fig. 3 is pressure-bearing platform schematic diagram provided in an embodiment of the present invention.
Fig. 4 is transmission rod schematic diagram provided in an embodiment of the present invention.
Fig. 5 is the structural schematic diagram of through-hole bolt of the present invention.
Fig. 6 is the structural schematic diagram of bolt of the present invention.
Fig. 7 is ring structure schematic diagram of the present invention.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawing
Referring to attached drawing：
A kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method of the present invention of embodiment 1, packet
It includes：
Weak soil apparatus for placing, including for holding test weak soil test cylinder 1, for sealing sealing film 15 and be used for
The pressure plate 5 of pressurization, test cylinder 1 are placed in support device 2, bottom end seal, the equipped sealing for also serving as sealing of upper end open-mouth
The pressure plate 5 of film 15 and pressurization, and pressure plate is axially moved down along test cylinder.Sealing both film and test cylinder are surrounded for holding
The leakage test chamber of weak soil；
Support device 2, support device 2 are arranged outside weak soil apparatus for placing, and lower end and weak soil apparatus for placing bottom are solid
It connects, top is installed for applying stressed loading device to the pressure plate of weak soil apparatus for placing；
Loading device 3, including force application mechanism and transmission rod 8, the force application mechanism are mounted on the top of support frame, and apply
The force side of force mechanisms is detachably connected with by the pressure plate of transmission rod and weak soil apparatus for placing, for providing an edge to pressure plate
The pressure of cylinder vertical axial；
Vacuum evacuation device, including vacuum pump 16 and communicating pipe 6, the suction inlet of intermediate pump 16 by communicating pipe 6 with
Leakage test chamber connection, for leakage test chamber to be evacuated environment.
It further include the test device for measuring weak soil performance parameter, the test device includes for measuring weak soil compression
The displacement sensor of amount, the sensor for pore water pressure for measuring pore water pressure, the soil pressure case for measuring soil pressure and
Data collecting instrument, institute's displacement sensors are arranged on pressure plate, and the sensor for pore water pressure, the soil pressure case are arranged soft
In soil；The signal output end of institute's displacement sensors, the signal output end of the sensor for pore water pressure and the soil pressure case
Signal output end be electrically connected respectively with the signal input part of the data collecting instrument.
1 bottom end seal of test cylinder, upper end-face edge turn down the upper edge for forming an annular outward；Filling in the test cylinder
Weak soil；The upper end cover dress pressure plate 5 and sealing element 15 of the test cylinder 1, wherein sealing element 15 is for realizing soil sample and test cylinder 1
Between sealing.
The test cylinder 1 includes cylinder 9 and pedestal 7, and wherein cylinder body bottom seals affixed with pedestal, is formed on lower end closure
Open structure is held, and in upper end open-mouth equipped one for the sealing element of sealing and the pressure plate of load.
The sealing element 15 is the sealing film for being covered on weak soil surface, and sealing membrane edge edge is extended over upper along surface, and
By bolt 17, be pressed in mounting platform surface cover board 20 and rubber sheet gasket and mounting platform face seal it is affixed；Seal film
It is adjacent to test cylinder inner wall and pressure plate contact position, and there are extra fold surpluses, when guaranteeing that pressure plate is axially moved down along test cylinder
Sealing film is not destroyed.
The pressure plate 5 is equipped with the through-hole bolt 4 that can be connected to inside and outside pressure plate, and 4 end of through-hole bolt is respectively matched
One is filled for realizing the gasket 18 and nut for fixing 19 of sealing, the open channel sealing for forming through-hole bolt
Formula channel.
Drainage arrangement is equipped in weak soil in test cylinder 1, wherein the collection water end (W.E.) of drainage arrangement passes through collector pipe and through-hole spiral shell
The communication port of bolt inner end is connected to；The communication port of through-hole bolt outer end is connected by the suction inlet pipeline of communicating pipe and vacuum evacuation device
It is logical.
The force application mechanism includes eccentric lever 14, counterweight 11, counterweight 13 and scale pan 12, the eccentric lever 14
It is hinged on the top of support device, wherein 14 one end of eccentric lever is fixedly mounted with counterweight 11, and the other end is installed for placing counterweight
Scale pan 12；At the non-articulated of eccentric lever 14 and one end of transmission rod is hinged, the other end and pressure plate detachable of transmission rod 8
Connection.
The support device includes pull rod 10 and mounting rack 21, and 10 bottom end of pull rod and pedestal are affixed, pull rod top peace
Mounting rack is filled, and mounting rack is equipped with the articulated section for hinged eccentric lever.
The cylinder is circular metal or stainless steel cylinder.
The drainage arrangement is drain bar and collector pipe, wherein in drain bar insertion weak soil, and is realized and is arranged by collector pipe
Water plate is connected to through-hole bolt inner end opening line, and wherein the burial place of drain bar is determined according to the requirement of experimenter.Draining
The Shi Shuicong soil body flows to drain bar, then flows into collector pipe at through-hole bolt, finally flows to the communicating pipe being connected with vacuum pump, from
It is discharged in vacuum pump.
The work step of the experimental provision of the embodiment of the present invention is：In the cylinder below pressure plate setting experiment weak soil,
Pore pressure gauge, soil pressure sensor (wherein the burial place of the two is determined according to the requirement of experimenter), plastic draining board,
It is equipped with external interface in pressure plate, is taken away the air of inside cavity using vacuum pump, to make to generate vacuum lotus in cylinder
It carries, carries out vacuum preloading；Meanwhile counterweight is placed on scale pan, the load of generation is transmitted to pressure plate by transmission rod, pressurization
The intracorporal weak soil of extrusion cylinder after plate is pushed, this load are equivalent to preloading, carry out piling prepressing；Through-hole bolt in pressure plate is set
There are sealing ring and gasket seal, therefore can guarantee the air-tightness of cylinder well.It can be realized in cylinder respectively by the present apparatus
Apply while weak soil vacuum preloading, piling prepressing or vacuum preloading and piling prepressing.
In 2 the present embodiment of embodiment, a kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method is described
1 bottom end closure of test cylinder, the top cover of the test cylinder 1 is pressure plate 5, and pressure plate 5 and transmission rod 8 are that detachable activity connects
It connects；Pedestal 7 is equipped with cylinder 9 and pull rod 10, is equipped with the weak soil covered by sealing film 15 in metal cylinder 9；It is set on the sealing film
There are through-hole screw 4 and pressure plate 5, through-hole screw 4 is equipped with sealing ring 18, and pressure plate 5 is equipped with transmission rod 8, table on pressure plate 5
Face is equipped with the displacement meter being connected with data collecting instrument；The transmission rod 8 and 3 phase fitting of loading device, the bias of loading device 3
Lever is a L-type connecting rod, wherein a cross bar one end is equipped with counterweight 11, the other end is extended downwardly equipped with scale pan 12 and counterweight
13；Drain bar and test device are equipped in the weak soil.
In above-mentioned apparatus, 15 edge of sealing film seals weak soil by bolt 17, cover board 20, rubber sheet gasket.It is close
Sealer 15 is tightly attached to the contact position of cylinder 9 Yu 5 each section of pressure plate, and there are the sealing films of extra fold, to guarantee to pressurize
Sealing film 15 is not destroyed when plate 5 moves down.Wherein, sealing film 15 is arranged in the lower layer of pressure plate 5 and seals film 15 along the outer of cylinder 9
It turns up and is sealed by 9 upper edge hole of cylinder, cover board 20, rubber sheet gasket, bolt 17 in wall upper end.
The cylinder 9 is circular metal or stainless steel cylinder.
Wherein, cylinder 9 is made of circular metal or stainless steel material, and 9 lower end closed of cylinder is placed on pedestal 7, pressurization
Plate 5 serves as 9 top cover of cylinder.It is connected between weighted platform 3 and pedestal 7 by pull rod 10, pull rod 10 is placed in except cylinder 9.It is above-mentioned
Device pull rod 10 is set as 6 (pull rod can set multiple), is evenly distributed between weighted platform 3 and pedestal 7.
In above-mentioned apparatus, the loading device 3 connects counterweight 11, scale pan 12, counterweight 13 and transmission rod 8, described
One end of transmission rod 8 is detachably to be flexibly connected with the top surface of the pressure plate 5, and through-hole bolt 4 is equipped in the pressure plate 5.
In above-mentioned apparatus, the through-hole bolt 4 is equipped with sealing ring 18 and nut 19.Sealing ring 18 and nut 19 make cylinder
Air-tight state is kept in body 1, the open channel for forming through-hole screw 4 becomes sealed channel.
In above-mentioned apparatus, 4 one end of through-hole bolt is connected with collector pipe, and the other end with vacuum pump 16 by being connected communicating pipe 6.
Device further includes：Displacement sensor, sensor for pore water pressure and soil pressure sensor, the displacement sensor setting exist
The surface of pressure plare, the sensor for pore water pressure and soil pressure sensor are arranged inside the intracorporal weak soil of cylinder, the displacement
The signal of the testing elements such as sensor, sensor for pore water pressure is connected by data collecting instrument.The liter that displacement sensor passes through transmission rod
The decrement for determining bury drops；Testing element is connected to data collecting instrument, measures corresponding examination in cylinder with can be convenient
Data are tested, convenient for the continuous record of experimental data.
The work step of the experimental provision of the embodiment of the present invention is：In the cylinder below pressure plate setting experiment weak soil,
Pore pressure gauge, soil pressure cell, plastic draining board are equipped with external interface in pressure plate, using vacuum pump by inside cavity
Air take away, to make to generate vacuum load in cylinder, carry out vacuum preloading；Meanwhile counterweight is placed on scale pan, it generates
Load pressure plate is transmitted to by transmission rod, the intracorporal weak soil of extrusion cylinder after pressure plate is pushed, this load is equivalent to preloading,
Carry out piling prepressing；Through-hole bolt in pressure plate is equipped with sealing ring and gasket seal, therefore can guarantee the gas of cylinder well
Close property.While weak soil vacuum preloading, piling prepressing or vacuum preloading and piling prepressing in cylinder may be implemented by the present apparatus
Apply.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range should not be construed as being limited to the specific forms stated in the embodiments, and protection scope of the present invention also includes art technology
Personnel conceive according to the present invention it is conceivable that equivalent technologies mean.
Claims (10)
1. a kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method, which is characterized in that including：
Weak soil apparatus for placing, including the test cylinder for holding test weak soil and for the pressure plate of pressurization and for sealing
Sealing element, test cylinder are placed in support device, bottom end seal, and upper end open-mouth is successively equipped with the pressure plate of pressurization from top to bottom
With the sealing element of sealing, and pressure plate is axially moved down along test cylinder, and both sealing element and test cylinder are surrounded for holding weak soil
Leakage test chamber；
Support device, support device are arranged outside weak soil apparatus for placing, and lower end and weak soil apparatus for placing bottom are affixed, top
End installation is for applying stressed loading device to the pressure plate of weak soil apparatus for placing；
Loading device, including force application mechanism and transmission rod, the force application mechanism are mounted on the top of support frame, and force application mechanism
Force side be detachably connected with by the pressure plate of transmission rod and weak soil apparatus for placing, for pressure plate provide one along cylinder hang down
D-axis to pressure；
The suction inlet of vacuum evacuation device, including vacuum pump and communicating pipe, intermediate pump passes through communicating pipe and leakage test chamber
Connection, for leakage test chamber to be evacuated environment.
2. a kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method as described in claim 1, feature
It is：It further include the test device for measuring weak soil performance parameter, the test device includes for measuring weak soil decrement
Displacement sensor, the sensor for pore water pressure for measuring pore water pressure, soil pressure case and number for measuring soil pressure
According to Acquisition Instrument, institute's displacement sensors are arranged on pressure plate, and the sensor for pore water pressure, the soil pressure case are arranged in weak soil
It is interior；The signal output end of institute's displacement sensors, the signal output end of the sensor for pore water pressure and the soil pressure case
Signal output end is electrically connected with the signal input part of the data collecting instrument respectively.
3. a kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method as described in claim 1, feature
It is：The test cylinder bottom end seal, upper end-face edge turn down the upper edge for forming an annular outward；Filling is soft in the test cylinder
Soil；The upper end cover of the test cylinder successively installs pressure plate and sealing element additional from top to bottom, wherein sealing element for realizing soil sample with
Sealing between test cylinder.
4. a kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method as claimed in claim 3, feature
It is：The test cylinder includes cylinder and pedestal, and wherein cylinder body bottom seals affixed with pedestal, and it is open to form lower end closure upper end
Structure, and in upper end open-mouth equipped one for the sealing element of sealing and the pressure plate of load.
5. a kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method as claimed in claim 4, feature
It is：The sealing element is the sealing film for being covered on weak soil surface, and sealing membrane edge edge is extended over upper along surface, and passes through spiral shell
Bolt, the cover board for being pressed in mounting platform surface and rubber sheet gasket and mounting platform face seal are affixed；Sealing film is adjacent to test cylinder
Inner wall and pressure plate contact position, and there are extra fold surplus, guarantee not destroying sealing when pressure plate is axially moved down along test cylinder
Film.
6. a kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method as claimed in claim 5, feature
It is：The pressure plate is equipped with the through-hole bolt that can be connected to inside and outside pressure plate, and through-hole bolt end each equipped one is used
In the gasket and nut for fixing of realizing sealing, the sealed channel of open channel for forming through-hole bolt.
7. a kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method as claimed in claim 6, feature
It is：Drainage arrangement is equipped in weak soil in test cylinder, wherein the collection water end (W.E.) of drainage arrangement passes through in collector pipe and through-hole bolt
The communication port at end is connected to；The communication port of through-hole bolt outer end passes through the suction inlet pipeline connection of communicating pipe and vacuum evacuation device.
8. a kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method as described in claim 1, feature
It is：The pressure exerting arrangement includes eccentric lever, counterweight and scale pan, and the eccentric lever is hinged on support dress
The top set, wherein eccentric lever one end is fixedly mounted with counterweight, and the other end installs the scale pan for placing counterweight；Eccentric lever
At non-articulated and one end of transmission rod is hinged, and the other end and the pressure plate of transmission rod are detachably connected with.
9. a kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method as claimed in claim 5, feature
It is：The support device includes pedestal, pull rod and mounting rack, and the pull rod bottom end and pedestal are affixed, pull rod top installation peace
It shelves, and mounting rack is equipped with the articulated section for hinged eccentric lever.
10. a kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method as claimed in claim 5, feature
It is：The cylinder is circular metal or stainless steel cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810729548.8A CN108824502A (en) | 2018-07-05 | 2018-07-05 | A kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810729548.8A CN108824502A (en) | 2018-07-05 | 2018-07-05 | A kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108824502A true CN108824502A (en) | 2018-11-16 |
Family
ID=64135410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810729548.8A Pending CN108824502A (en) | 2018-07-05 | 2018-07-05 | A kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108824502A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180282966A1 (en) * | 2017-03-30 | 2018-10-04 | Wenzhou University | Devices used in laboratories to measure horizontal displacement of soil around a foundation to be treated by vacuum preloading, and measurement methods |
| CN110485484A (en) * | 2019-08-27 | 2019-11-22 | 天津大学 | A kind of vacuum preconsolidation model assay systems |
| CN113686650A (en) * | 2021-08-11 | 2021-11-23 | 北京交通大学 | Lateral confining pressure loading equipment for undisturbed soil of sludge |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707034A (en) * | 2012-05-31 | 2012-10-03 | 东南大学 | Indoor model testing device and testing method employing air-pressure splitting vacuum preloading method |
| CN203241408U (en) * | 2013-01-08 | 2013-10-16 | 中交四航工程研究院有限公司 | Indoor vacuum combined-supercharge preloading model test device |
| CN203786072U (en) * | 2014-03-04 | 2014-08-20 | 西安理工大学 | Indoor testing device for testing strain aging of soil-water-gas |
| CN105862936A (en) * | 2016-04-18 | 2016-08-17 | 温州交通技术学校 | Soft foundation treatment test device for stimulating vacuum joint gas injection |
| CN205776419U (en) * | 2016-06-16 | 2016-12-07 | 广州市市政工程设计研究总院 | A kind of seal vacuum preloading indoor model test device |
| CN208907232U (en) * | 2018-07-05 | 2019-05-28 | 浙江工业大学 | A kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method |
-
2018
- 2018-07-05 CN CN201810729548.8A patent/CN108824502A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707034A (en) * | 2012-05-31 | 2012-10-03 | 东南大学 | Indoor model testing device and testing method employing air-pressure splitting vacuum preloading method |
| CN203241408U (en) * | 2013-01-08 | 2013-10-16 | 中交四航工程研究院有限公司 | Indoor vacuum combined-supercharge preloading model test device |
| CN203786072U (en) * | 2014-03-04 | 2014-08-20 | 西安理工大学 | Indoor testing device for testing strain aging of soil-water-gas |
| CN105862936A (en) * | 2016-04-18 | 2016-08-17 | 温州交通技术学校 | Soft foundation treatment test device for stimulating vacuum joint gas injection |
| CN205776419U (en) * | 2016-06-16 | 2016-12-07 | 广州市市政工程设计研究总院 | A kind of seal vacuum preloading indoor model test device |
| CN208907232U (en) * | 2018-07-05 | 2019-05-28 | 浙江工业大学 | A kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180282966A1 (en) * | 2017-03-30 | 2018-10-04 | Wenzhou University | Devices used in laboratories to measure horizontal displacement of soil around a foundation to be treated by vacuum preloading, and measurement methods |
| US10472788B2 (en) * | 2017-03-30 | 2019-11-12 | Wenzhou University | Devices used in laboratories to measure horizontal displacement of soil around a foundation to be treated by vacuum preloading, and measurement methods |
| CN110485484A (en) * | 2019-08-27 | 2019-11-22 | 天津大学 | A kind of vacuum preconsolidation model assay systems |
| CN113686650A (en) * | 2021-08-11 | 2021-11-23 | 北京交通大学 | Lateral confining pressure loading equipment for undisturbed soil of sludge |
| CN113686650B (en) * | 2021-08-11 | 2023-12-19 | 北京交通大学 | Lateral confining pressure loading equipment for undisturbed soil of sludge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108824502A (en) | A kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method | |
| CN103398933A (en) | Constant-pressure concrete permeability testing device | |
| CN103235107B (en) | Pressure plate testing device capable of controlling suction force by negative pore water pressure | |
| CN206593982U (en) | A kind of rock mass swelling stress tester | |
| CN105866000A (en) | Seepage testing apparatus and method for rock with single fracture | |
| CN107607385B (en) | Vacuum test device for triaxial remolded soil sample preparation | |
| CN106537108A (en) | Flexible leakage test chamber that can be evacuated | |
| CN109085036A (en) | A kind of device and application method of Quick uniform preparation triaxial test soil sample | |
| CN208907232U (en) | A kind of Multi-functional indoor model test apparatus for the processing of weak soil preloading method | |
| CN106706500A (en) | Device for determining permeability of concrete | |
| CN104730223B (en) | Volume change considering expansive soil SWCC curve testing apparatus and volume change considering expansive soil SWCC curve testing method | |
| CN208888108U (en) | A kind of shale porosity test device | |
| CN109682741A (en) | A kind of consolidation infiltration experiment device and its operating method | |
| CN209513487U (en) | Pressurizing device when injection is flowed in a kind of conventional articulated gravity field entirely | |
| CN206270775U (en) | A kind of full-automatic unsaturated soil consolidation apparatus | |
| CN110160880A (en) | The Vacuum-Heaped United Pre-compressed experimental rig and method of soil sample under a kind of three Spindle Status | |
| CN209167011U (en) | A kind of radial consolidation experimental rig | |
| CN1119276A (en) | Vacuum compressometer and experiment method | |
| CN214011245U (en) | Prestressed duct grouting material pressure bleeding test instrument | |
| CN108532648A (en) | The foundation model experimental rig and test method of vacuum pre-pressed joint heating | |
| CN208140536U (en) | A kind of falling head permeameter | |
| CN103308429B (en) | A kind of instrument measuring solion coefficient of diffusion in the soil body | |
| CN106525589B (en) | Pressure chamber for geotechnical test | |
| CN209513544U (en) | A kind of consolidation infiltration experiment device | |
| CN108226446B (en) | The transmitting of dredged mud negative pressure and rate of decay measure experimental rig |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181116 |
|
| RJ01 | Rejection of invention patent application after publication |