CN201497679U - Bedding value experiment testing device - Google Patents
Bedding value experiment testing device Download PDFInfo
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- CN201497679U CN201497679U CN2009202276824U CN200920227682U CN201497679U CN 201497679 U CN201497679 U CN 201497679U CN 2009202276824 U CN2009202276824 U CN 2009202276824U CN 200920227682 U CN200920227682 U CN 200920227682U CN 201497679 U CN201497679 U CN 201497679U
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Abstract
The utility model relates to a bedding value experiment testing device, which comprises a pressure compartment (2), wherein a cylindrical latex film (17) is pasted on the inner cavity of the pressure compartment (2), the base of the inner cavity of the pressure compartment (2) is sequentially provided with a lower water permeable plate (14), a test specimen (9) and an upper water permeable assembly from top to bottom, wherein an outer pressing plate (16) is connected on the upper water permeable ring plate (15) of the upper water permeable assembly, an inner pressing plate (21) is connected on an upper water permeable inner plate (20), the outer pressing plate (16) is sheathed outside the inner pressing plate (21), a flange (22) is sheathed on the force transmission sleeve of the outer pressing plate (16), the flange (22) and the pressure compartment (2) are connected through screw bolts, and a support screw bolt (23) which is in contact with the outer pressing plate (16) is also arranged on the flange (22). The utility model has the advantages of simple structure, convenient use, short testing period and equivalent testing results as that of the original K30, and can more accurately reflect the foundation soil bedding value and the foundation bearing force.
Description
Technical field
The utility model relates to ground measurement mechanism technical field, a kind of specifically bedding coefficient proving installation.
Background technology
Load test is to measure the standard method of Foundation Soil Coefficient of Subgrade Reaction and foundation bearing capacity, the current indoor standard method of not measuring bedding value, and foundation bearing capacity also is to try to achieve by measuring the calculating of foundation soil physico-mechanical properties, does not have directly to measure the test method and the device of carrying.
The utility model content
The purpose of this utility model is a kind of bedding coefficient proving installation that can directly measure foundation bearing capacity of design.
The utility model bedding coefficient proving installation, comprise: pressure chamber 2, be stained with cylindric latex film 17 in the inner chamber of pressure chamber 2, porous disc 14, sample 9 and last porous disc assembly are housed down on the base of pressure chamber 2 inner chambers from bottom to up successively, be connected with outer plate 16 on the last permeable ring flat-plate 15 of last porous disc assembly, go up on the permeable inner panel 20 and be connected with clip plate 21, outer plate 16 is enclosed within outside the clip plate 21, the power transmission of outer plate 16 puts and is with ring flange 22, ring flange 22 is connected with pressure chamber 2 bolts, also has carrying bolt 23 and outer plate 16 to contact on the ring flange 22; Have groove in pressure chamber 2 bases, rising pipe 10 is housed in the groove, three-way valve 24 is housed on the rising pipe 10, three-way valve 24 1 ends link to each other with pressure transducer 11 by pipeline, and three-way valve 24 other ends are connected with down branch drain 19; Pressure transducer 11 links to each other with collector 12 by lead, and collector 12 links to each other with computerized control system; The hydraulic cavities volume adjustment tube 5 of side direction pressue device, fully automatic hydraulic controller 6 link to each other with pressure chamber 2 inner chambers by pipeline, valve respectively.
Last porous disc assembly comprises: go up permeable ring flat-plate 15, go up in the permeable ring flat-plate 15 and be with permeable inner panel 20.
The side direction pressue device comprises: hydraulic cavities volume adjustment tube 5 links to each other with pressure chamber 2 inner chambers by pipeline, water intaking valve 13, and fully automatic hydraulic controller 6 links to each other with pressure chamber 2 inner chamber opposite sides by pipeline, valve.
Above assembly can be finished the gravity pressure state that recovers sample soil.
The bedding coefficient proving installation, also has vertical pressue device, vertical pressue device comprises: local section increased pressure board force-transmitting pole 18 is housed on the clip plate 21, local section increased pressure board force-transmitting pole 18 tops and pressurizing frame 1 contact, on the local section increased pressure board force-transmitting pole 18 displacement transducer anchor clamps 7 are housed, the displacement transducer anchor clamps are equipped with displacement transducer 8 on 7 two ends, and the plane contacts on displacement transducer 8 and the pressure chamber 2; Pressurizing frame 1 bottom links to each other with hanging scaffold 3, is placed with counterweight 4 on the hanging scaffold 3; Displacement transducer 8 links to each other with collector 12 by lead.
The inner chamber of pressure chamber 2 can be spherical inner chamber, also can be up and down to be the inner chamber of cylinder for spherical crown, centre.
The utility model bedding coefficient proving installation is achieved in that
1. container is assembled on request, in hydraulic cavities volume adjustment tube 5, fill with degassing distilled water; Open water intaking valve 13, in pressure chamber 2, fill with de aerated water, get rid of whole bubbles; (φ=100mm, h=150mm) puts into container with the standard correction sample; Apply lateral pressure step by step by 100KPa/min,, keep 800KPa to press 10 minutes water-tight getting final product until 800KPa; Removal pressure takes out correcting block;
2. prepare φ 95～100mm, H=120-150mm sample 9, two ends will be put down, and paste 15～18 of the filter paper bars of b=5mm around the sample; Get rid of gas in the pipeline, the sample 9 of packing on request;
3. the hydraulic cavities that raises volume adjustment tube 5 makes liquid level be higher than sample top 30～50cm, and cylindric latex film 17 is contacted fully with sample 9, and produces the contact pressure about 3～5KPa, closes water intaking valve 13;
4. upwards the classification of porous disc assembly applies full cross section perpendicular load till the gravity pressure of soil, and according to the soil sample position, the gravity pressure of soil size is divided 1～5 grade;
5. begin after every grade of load applies one hour to survey and read lateral pressure hourly, lower end water discharge; When water discharge two little time difference value less than 0.1ml, or adopt base apertures to press residual value to be not more than 5% method of pressure at right angle, declare and surely apply the next stage load;
6. when after sample stabilization by consolidation under the gravity pressure effect, locking outer plate 16 is opened fully automatic hydraulic controller 6 and is made the sample lateral pressure be stabilized in the end point values of deadweight when fixed;
7. removal axle pressure applies axle pressure to sample for 10～12 grades with local section loading plate force-transmitting pole 18 minutes, destroys until sample;
8. every grade of load by 1 ', 2 ', 5 ', 10 ', 30 ', 1h, 2h, 3h ..., write down the axial deformation value under the corresponding load, declare during less than 0.01mm surely when the increment of per hour distortion, apply the next stage load; Perhaps be no more than 0.1mm and apply the next stage load as stabilized reference and destroy, do not paste the filter paper bar when adopting this method until sample by surveying in 2 minutes to read once to be out of shape;
9. draw the P-S curve;
10. look bedding value and look bearing capacity according to the definite foundation soil of P-S curvilinear characteristic point.
The advantage of the utility model bedding coefficient proving installation is: simple in structure, easy to use, the test period is short, and measured result and the equivalence of original position K30 test result can comparatively accurately reflect Foundation Soil Coefficient of Subgrade Reaction and foundation bearing capacity.
Description of drawings
Fig. 1 is the structural representation of bedding coefficient proving installation.
Embodiment
Embodiment one
According to shown in Figure 1, a kind of bedding coefficient proving installation, comprise: pressure chamber 2, be stained with cylindric latex film 17 in the inner chamber of pressure chamber 2, porous disc 14 is housed down on the base of pressure chamber 2 inner chambers from bottom to up successively, sample 9 and last porous disc assembly, be connected with outer plate 16 on the last permeable ring flat-plate 15 of last porous disc assembly, go up on the permeable inner panel 20 and be connected with clip plate 21, outer plate 16 is enclosed within outside the clip plate 21, the power transmission of outer plate 16 puts and is with ring flange 22, ring flange 22 is connected with pressure chamber 2 bolts, also has carrying bolt 23 and outer plate 16 to contact on the ring flange 22; Have groove in pressure chamber 2 bases, rising pipe 10 is housed in the groove, three-way valve 24 is housed on the rising pipe 10, three-way valve 24 1 ends link to each other with pressure transducer 11 by pipeline, and three-way valve 24 other ends are connected with down branch drain 19; Pressure transducer 11 links to each other with collector 12 by lead, and collector 12 links to each other with computerized control system; The hydraulic cavities volume adjustment tube 5 of side direction pressue device, fully automatic hydraulic controller 6 link to each other with pressure chamber 2 inner chambers by pipeline, valve respectively.
Last porous disc assembly comprises: go up permeable ring flat-plate 15, go up in the permeable ring flat-plate 15 and be with permeable inner panel 20.
The side direction pressue device comprises: hydraulic cavities volume adjustment tube 5 links to each other with pressure chamber 2 inner chambers by pipeline, water intaking valve 13, and fully automatic hydraulic controller 6 links to each other with pressure chamber 2 inner chamber opposite sides by pipeline, valve.
Above assembly can be finished the gravity pressure state that recovers sample soil.
Embodiment two
According to shown in Figure 1, a kind of bedding coefficient proving installation, comprise: pressure chamber 2, be stained with cylindric latex film 17 in the inner chamber of pressure chamber 2, porous disc 14 is housed down on the base of pressure chamber 2 inner chambers from bottom to up successively, sample 9 and last porous disc assembly, be connected with outer plate 16 on the last permeable ring flat-plate 15 of last porous disc assembly, go up on the permeable inner panel 20 and be connected with clip plate 21, outer plate 16 is enclosed within outside the clip plate 21, the power transmission of outer plate 16 puts and is with ring flange 22, ring flange 22 is connected with pressure chamber 2 bolts, also has carrying bolt 23 and outer plate 16 to contact on the ring flange 22; Have groove in pressure chamber 2 bases, rising pipe 10 is housed in the groove, three-way valve 24 is housed on the rising pipe 10, three-way valve 24 1 ends link to each other with pressure transducer 11 by pipeline, and three-way valve 24 other ends are connected with down branch drain 19; Pressure transducer 11 links to each other with collector 12 by lead, and collector 12 links to each other with computerized control system; The hydraulic cavities volume adjustment tube 5 of side direction pressue device, fully automatic hydraulic controller 6 link to each other with pressure chamber 2 inner chambers by pipeline, valve respectively.
Last porous disc assembly comprises: go up permeable ring flat-plate 15, go up in the permeable ring flat-plate 15 and be with permeable inner panel 20.
The side direction pressue device comprises: hydraulic cavities volume adjustment tube 5 links to each other with pressure chamber 2 inner chambers by pipeline, water intaking valve 13, and fully automatic hydraulic controller 6 links to each other with pressure chamber 2 inner chamber opposite sides by pipeline, valve.
Above assembly can be finished the gravity pressure state that recovers sample soil.
The bedding coefficient proving installation, also has vertical pressue device, vertical pressue device comprises: local section increased pressure board force-transmitting pole 18 is housed on the clip plate 21, local section increased pressure board force-transmitting pole 18 tops and pressurizing frame 1 contact, on the local section increased pressure board force-transmitting pole 18 displacement transducer anchor clamps 7 are housed, the displacement transducer anchor clamps are equipped with displacement transducer 8 on 7 two ends, and the plane contacts on displacement transducer 8 and the pressure chamber 2; Pressurizing frame 1 bottom links to each other with hanging scaffold 3, is placed with counterweight 4 on the hanging scaffold 3; Displacement transducer 8 links to each other with collector 12 by lead.
Draw data according to above all components and draw the P-S curve, measure Foundation Soil Coefficient of Subgrade Reaction and foundation bearing capacity by shallow-layer plate deformation modulus computing formula again.
Claims (4)
1. bedding coefficient proving installation, comprise: pressure chamber (2), it is characterized in that: be stained with cylindric latex film (17) in the inner chamber of pressure chamber (2), on the base of pressure chamber (2) inner chamber porous disc (14) is housed down successively from bottom to up, sample (9) and last porous disc assembly, be connected with outer plate (16) on the last permeable ring flat-plate (15) of last porous disc assembly, go up on the permeable inner panel (20) and be connected with clip plate (21), outer plate (16) is enclosed within outside the clip plate (21), the power transmission of outer plate (16) puts and is with ring flange (22), ring flange (22) is connected with pressure chamber (2) bolt, and ring flange (22) is gone up also has carrying bolt (23) and outer plate (16) to contact; Have groove in pressure chamber (2) base, rising pipe (10) is housed in the groove, three-way valve (24) is housed on the rising pipe (10), and three-way valve (24) one ends link to each other with pressure transducer (11) by pipeline, and three-way valve (24) other end is connected with down branch drain (19); Pressure transducer (11) links to each other with collector (12) by lead, and collector (12) links to each other with computerized control system; The hydraulic cavities volume adjustment tube (5) of side direction pressue device, fully automatic hydraulic controller (6) link to each other with pressure chamber (2) inner chamber by pipeline, valve respectively.
2. bedding coefficient proving installation according to claim 1 is characterized in that: go up the porous disc assembly, comprising: go up permeable ring flat-plate (15), go up in the permeable ring flat-plate (15) and be with permeable inner panel (20).
3. bedding coefficient proving installation according to claim 1, it is characterized in that: the side direction pressue device, comprise: hydraulic cavities volume adjustment tube (5) links to each other with pressure chamber (2) inner chamber by pipeline, water intaking valve (13), and fully automatic hydraulic controller (6) links to each other with pressure chamber (2) inner chamber opposite side by pipeline, valve.
4. bedding coefficient proving installation according to claim 1, it is characterized in that: the bedding coefficient proving installation, also has vertical pressue device, vertical pressue device comprises: local section increased pressure board force-transmitting pole (18) is housed on the clip plate (21), local section increased pressure board force-transmitting pole (18) top and pressurizing frame (1) contact, displacement transducer anchor clamps (7) are housed on the local section increased pressure board force-transmitting pole (18), displacement transducer anchor clamps (7) are equipped with displacement transducer (8) on the two ends, and displacement transducer (8) and pressure chamber (2) are gone up the plane and contacted; Pressurizing frame (1) bottom links to each other with hanging scaffold (3), is placed with counterweight (4) on the hanging scaffold (3); Displacement transducer (8) links to each other with collector (12) by lead.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202276824U CN201497679U (en) | 2009-08-26 | 2009-08-26 | Bedding value experiment testing device |
| PCT/CN2010/001125 WO2011022932A1 (en) | 2009-08-26 | 2010-07-26 | Testing method and device for foundation bed coefficient test |
| GB1205190.0A GB2488053B (en) | 2009-08-26 | 2010-07-26 | Testing device for coefficient of subgrade reaction test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202276824U CN201497679U (en) | 2009-08-26 | 2009-08-26 | Bedding value experiment testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201497679U true CN201497679U (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202276824U Expired - Lifetime CN201497679U (en) | 2009-08-26 | 2009-08-26 | Bedding value experiment testing device |
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| Country | Link |
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| CN (1) | CN201497679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011022932A1 (en) * | 2009-08-26 | 2011-03-03 | 中冶集团武汉勘查研究院有限公司 | Testing method and device for foundation bed coefficient test |
| CN104594323A (en) * | 2015-02-11 | 2015-05-06 | 浙江省工程勘察院 | Test device for coefficients of horizontal-reference foundation bed and test method using device |
-
2009
- 2009-08-26 CN CN2009202276824U patent/CN201497679U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011022932A1 (en) * | 2009-08-26 | 2011-03-03 | 中冶集团武汉勘查研究院有限公司 | Testing method and device for foundation bed coefficient test |
| GB2488053A (en) * | 2009-08-26 | 2012-08-15 | Wuhan Surveying Geotechnical Res Inst Co Ltd Of Mcc | Testing method and device for coefficient of subgrade reaction test |
| GB2488053B (en) * | 2009-08-26 | 2013-07-31 | Wuhan Surveying Geotechnical Res Inst Co Ltd Of Mcc | Testing device for coefficient of subgrade reaction test |
| CN104594323A (en) * | 2015-02-11 | 2015-05-06 | 浙江省工程勘察院 | Test device for coefficients of horizontal-reference foundation bed and test method using device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100602 |