CN204439455U - A kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container - Google Patents
A kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container Download PDFInfo
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- CN204439455U CN204439455U CN201520072939.9U CN201520072939U CN204439455U CN 204439455 U CN204439455 U CN 204439455U CN 201520072939 U CN201520072939 U CN 201520072939U CN 204439455 U CN204439455 U CN 204439455U
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- permeable backing
- backing plate
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Abstract
The utility model discloses a kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container, comprises pressurization upper cover, retaining ring and two permeable backing plates; Retaining ring is cylindrical shape; Sample to be tested and two permeable backing plates are arranged in the endoporus of retaining ring, and in two permeable backing plates one be positioned at above sample to be tested, one is positioned at below sample to be tested; Permeable backing plate is round pie; One side of permeable backing plate is provided with five concentric annular grooves; Some permeable apertures running through permeable backing plate are equipped with in five annular grooves; The permeable backing plate be positioned at above sample to be tested arranges one of annular groove and faces up, and the permeable backing plate be positioned at below sample to be tested arranges one of annular groove and faces down; The permeable backing plate be positioned at above sample to be tested is provided with pressurization upper cover; Pressurization upper cover comprises the right cylinder of bottom and is positioned at the Rotary-table of cylinder top end; Rotary-table top is provided with ball recess.The utility model can measure the compression property index of hard undisturbed soil, soft rock class, simultaneously simple to operate, price economy.
Description
[technical field]
The utility model relates to indoor consolidation test technical field, particularly a kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container.
[background technology]
Build the hydraulic structure on ground and civil construction thing, owing to designing improper destruction, have partly cause to be: excessive settlement of foundation produces.Various soil mass is due to proterties own (as soil body grating, mineralogical composition, soil structures), and the environmental factor (as stress history, temperature etc.) at soil body place has different compression properties, and the compression property obtaining the soil body seems particularly important.Indoor consolidation (compression) test of usual employing, situ loading, measures the compression property index of the soil body.The compression property index of soil mainly comprises: compressibility coefficient a
v, coefficient of volume compressibility m
v, Modulus of pressure E
s, compression index C
c, coefficient of consolidation C
v, second compression coefficient C
a, preconsolidation pressure P
c.
Indoor consolidation test instrument is mainly: consolidometer.Existing consolidometer, according to maximum pressure value can be provided to be divided into: high-pressure consolidation apparatus and low pressure consolidometer, high-pressure consolidation apparatus can provide pressure limit value to exist: 12.5kPa-4000kPa, and low pressure consolidometer can provide pressure limit to exist: 12.5kPa-800kPa.Number according to the consolidation container of every platform instrument institute simultaneous is divided into: three consolidometer, duplex consolidometer, simple lever consolidometer.
Refer to shown in Fig. 1, existing YS-1 type high-pressure consolidation apparatus mainly comprises measuring equipment 1, set screw 2, consolidation container 3 and pressurized equipment 4.Consolidometer is mainly divided into three parts: consolidation container, strain gauge, pressurized equipment three part composition.
Existing measuring equipment: being mainly minimum division value is 0.01mm, and range is the dial gauge of 10mm, or be gamut 0.2% displacement transducer.
Pressurized equipment mainly contains: lever, platform scale formula, fluid pressure type, vapour-pressure type 4 class.YS-1 high-pressure consolidation apparatus pressurized equipment used is lever pressurized equipment.Lever ratio is: 1 to 10,1 to 12 two grade, can provide maximum pressure to be: 4000kPa.
Refer to shown in Fig. 2, consolidation container 3 comprises retaining ring 6, cutting ring 8, porous disc 9 and pressurization upper cover 5; Sample 7 is arranged between two porous discs 9, is provided with tank 10 in retaining ring 6.YS-1 high-pressure consolidation apparatus compression container is copper bulge, and sample stainless steel cutting ring cuts, and is loaded on the retaining ring in container, and sample respectively puts 80# aluminium oxide permeable stone one piece and filter paper one up and down, above permeable stone place pressure transmission plate.Area of Sample is: 30cm
2and 50cm
2two kinds, specimen height is: 2cm.
In order to ensure that sample is without lateral deformation, need to use cutting ring cutting soil, to ensure that the soil body can be combined with cutting ring inner tight, cutting ring outside heavy wall copper ring is waled simultaneously.But soil, rock sample that hard undisturbed soil or soft rock class can not be cut by cutting ring, just cannot carry out consolidation test, the compression property index of such soil, rock cannot be obtained.
[utility model content]
The purpose of this utility model is to provide a kind of UHV (ultra-high voltage) consolidation container, can not cut the deficiency of hard undisturbed soil, soft rock class with the cutting ring solving existing consolidation container; The problem that the utility model UHV (ultra-high voltage) consolidation container can not only solve hard undisturbed soil, soft rock is difficult to cutting, the compression area reducing sample makes consolidometer can be supplied to sample maximum pressure: 16000kPa, ensure that the e-lgP curve that hard undisturbed soil, soft rock can survey scope can occur point of maximum curvature with this, obtain its preconsolidation pressure P
cvalue.
To achieve these goals, the utility model adopts following technical scheme:
A kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container, comprises pressurization upper cover, retaining ring and two permeable backing plates; Retaining ring is cylindrical shape, and the height of retaining ring is: 55mm, and external diameter is 90mm, and internal diameter is: 30.025mm; Sample to be tested and two permeable backing plates are arranged in the endoporus of retaining ring, and in two permeable backing plates one be positioned at above sample to be tested, one is positioned at below sample to be tested; Permeable backing plate is round pie, and thickness is 5mm, and diameter is 30mm; One side of permeable backing plate is provided with five concentric annular grooves; Each annulus groove width 1mm, adjacent rings groove interval 1.5mm; Some permeable apertures running through permeable backing plate are equipped with in five annular grooves; The diameter of permeable aperture is 1mm; The permeable backing plate be positioned at above sample to be tested arranges one of annular groove and faces up, and the permeable backing plate be positioned at below sample to be tested arranges one of annular groove and faces down; The permeable backing plate be positioned at above sample to be tested is provided with pressurization upper cover; Pressurization upper cover comprises the right cylinder of bottom and is positioned at the Rotary-table of cylinder top end; Round platform height is: 7mm, and cylinder height is: 15mm; Rotary-table top is provided with ball recess, and the degree of depth of this ball recess is: 4mm, and the radius of spherical is: 12mm.
Preferably, directly contact with the permeable backing plate end face be positioned at above sample to be tested bottom pressurization upper cover; Arrange in pressurization upper cover week and evenly arrange four vertical drainage grooves and be positioned at the cruciform transverse direction drainage groove arranged bottom the upper cover that pressurize and be connected, width, the degree of depth of vertical drainage groove and horizontal drainage groove are 1mm; The bottom of pressurization upper cover is provided with the annular drainage groove matched with the current groove on permeable backing plate.
Preferably, five annular grooves are provided with 4,8,12,16,20 permeable apertures from the inside to the outside successively.
Preferably, sample to be tested diameter is 30mm, is highly 40mm.
Preferably, be coupled for sliding between sample to be tested with retaining ring endoporus.
Preferably, sample to be tested external diameter and retaining ring internal diameter are H7/f7 tolerance fit.
Preferably, one deck filter paper is provided with between permeable backing plate and sample to be tested.
Preferably, pressurization upper cover, retaining ring and two permeable backing plates are made by 40# steel.
Relative to prior art, the utility model has following beneficial effect:
The utility model is only changes the original consolidation container of YS-1 type consolidometer, and be equipped with the pressure head, the backing plate that adapt, then test method and test principle are all identical with former test, facilitate experimenter, have saved the study to new test apparatus working specification, principle of operation; The utility model can carry out compression test to minor diameter (30mm) sample, compare original instrument and compression test is carried out to major diameter (61.8mm) sample, because loading facilities continues to use original equipment, so the pressurization upper limit about 4 times of instrument to sample can be improved, so just can ensure that point of maximum curvature appears in the e-lgP curve that hard undisturbed soil, soft rock can survey scope; The utility model sample need in advance with the little drill bit of beam drill drill through, lathe finishing sample preparation, solve the problem that cutting ring cannot cut hard soil rock sample well; This conversion unit devises permeable backing plate, replace original 80# aluminium oxide permeable stone, ensure that and be not under high pressure destroyed, and evenly gathered permeable aperture, the diameter of aperture is: Ф 1mm, with the backing plate face of sample contacts on cover filter paper, like this can pore water rapidly in drain sample, also ensure that sample is not squeezed in permeable aperture at high pressure; This utility model devises hoop, vertical, horizontal drainage groove, and from backing plate to pressure head, groove is integrally formed formula, directly can pore water be drained to above retaining ring, timely dissipation pore water pressure, ensures that loading equipemtn institute plus-pressure is equal with soil body effective stress, eliminates the impact of pore water pressure; Make this consolidation container expense lower, and do not destroy the part of former test apparatus, so just making to reequip rear YS-1 type consolidometer can carry out compression test to conventional Tu Yan, also can carry out compression test to hard undisturbed soil rock, greatly improve the purposes of this instrument, simultaneously price economy.
[accompanying drawing explanation]
Fig. 1 is the structural map of YS-1 type high-pressure consolidation apparatus.
Fig. 2 is the consolidation container structural map of YS-1 type high-pressure consolidation apparatus.
Fig. 3 is the schematic diagram of the utility model UHV (ultra-high voltage) consolidation container.
Fig. 4 a to Fig. 4 c is front elevation, the bottom surface front elevation of permeable backing plate end face respectively and partly cuts open figure.
Fig. 5 a to Fig. 5 c be respectively pressurization upper cover partly cut open figure, bottom surface front elevation and end face front elevation.
Fig. 6 a and Fig. 6 b is the front elevation of retaining ring and partly cuts open figure.
[embodiment]
The utility model designs the circular consolidation container of a minor diameter, and is equipped with the pressure head, the backing plate that adapt; Hard undisturbed soil, soft rock class are drilled through with the little drill bit of beam drill in advance, then with lathe for machining to the careful processing of sample, ensures the smooth of cylinder sample surface, the diameter of sample is coupled for sliding with the internal diameter of consolidation container; Cut the height grinding sample and allow to consolidation container; Sample is put into consolidation container, starts loading and record deformation data, thus effectively solving the problem can not carrying out consolidation test of hard undisturbed soil, soft rock class.
Refer to shown in Fig. 3 to Fig. 6 b, a kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container of the utility model, comprises pressurization upper cover 11, retaining ring 12 and two permeable backing plates 13.
Refer to shown in Fig. 4 a to Fig. 4 c, the thickness of permeable backing plate 13 is 5mm, and diameter is 30mm.Consider that the intensity of existing permeable stone is lower, the utility model adopts the permeable backing plate of steel to make sample draining.The end face of permeable backing plate 13 contacts with sample alternating floor filter paper, and in order to ensure that specimen surface is not destroyed, the upper surface of permeable backing plate 13 is smooth.Sample 14 inner super hydrostatic hole pressure is dissipated in time, and sample compresses in time, so need to design more permeable aperture 130, the diameter of aperture is: 1mm.Consider the sample that water percentage is larger, need at permeable backing plate bottom water permeatable aperture water exit position, design many rings current groove 131 and coupled together by permeable aperture 130, play the effect of drainage, the degree of depth of current groove 131 and width are all 1mm.Permeable hole is distributed on 5 ring belts altogether, each annulus bandwidth 1mm, ring belt interval 1.5mm, and on 1 to 5 ring belts, the number of permeable aperture is set to arithmetic progression, is respectively: 4,8,12,16,20.Down, lower permeable backing plate bottom surface upward in upper permeable backing plate bottom surface.
The design of pressurization upper cover: for making loading facilities have automatic aligning effect, corrects the small of loading framework and misaligns problem, and the bearing in force adopts double-row globe bearing.Refer to shown in Fig. 5 a to Fig. 5 c, pressurization upper cover 11 comprises the right cylinder 110 of bottom and is positioned at the Rotary-table 111 of cylinder top end; The overall height of pressurization upper cover 11 is: 22mm, and Rotary-table 111 height is: 7mm, and right cylinder 110 height is: 15mm; Rotary-table 111 top is provided with ball recess 112, and the degree of depth of this ball recess 112 is: 4mm, and the radius of spherical is: 12mm.Directly contact with permeable backing plate 13 end face bottom pressurization upper cover 11, also design hoop simultaneously, the drainage of lateral current groove, within 11 weeks, arrange at pressurization upper cover and evenly arrange four vertical drainage grooves 113 and be positioned at the cruciform transverse direction drainage groove 114 arranged bottom the upper cover 11 that pressurize and be connected, the width degree of depth of groove is 1mm.The bottom of pressurization upper cover 11 is provided with the annular drainage groove 115 matched with the current groove 131 on permeable backing plate 13.
Refer to shown in Fig. 6 a and Fig. 6 b, the design of retaining ring 12: sample 14 frictionally can be slided in the inner nothing of retaining ring 12 with permeable backing plate 13, make sample without circumferential deformation as much as possible simultaneously.In the utility model, sample 14 and retaining ring 12 are the limit deviation in H7/f7 tolerance fit, hole :+0.025mm, and the limit deviation of axle exists :-0.005mm; The internal diameter of retaining ring 12 is: 30.025mm.Ensure that sample 14 circumferential deformation does not occur, be designed to by the external diameter of retaining ring 12: 90mm, the height of retaining ring is: 55mm.
Due to 40# steel, intensity is higher, and machinability is good, and can be used for manufacture after surface hardening and bear larger stress member, choosing 40# steel is the utility model material therefor.
The Area of Sample of YS-1 type consolidometer is 30cm
2, the diameter of sample is: 61.8mm; The loading mode of consolidometer is lever loading, and the power being applied to pressurization upper cover is definite value, sample be made to bear larger pressure, the cross-sectional area of sample can only be reduced.Hard undisturbed soil, soft rock are comparatively hard, and its compressed value will be less, in order to allow measuring equipment obtain obvious readings, needs the height of sample to uprise.Need to consider the complexity of sample processing and the restriction of consolidation container height, the utility model is designed and sized to sample 14: 30mm (diameter) × 40mm (highly) simultaneously.
The consolidation container of YS-1 type consolidometer after putting into soil sample, highly: 72mm.YS-1 type consolidometer loading facilities devises cup head setting nut 2 (see accompanying drawing 1) in the heart in the crossbeam of pressurized equipment, can carry out finely tuning (± 5mm) according to the height of consolidation container, ensures that loading lever is in horizontality.For the loading facilities and the tank that make UHV (ultra-high voltage) consolidation container of the present utility model can put into YS-1 type consolidometer, the height loaded after sample by the UHV (ultra-high voltage) consolidation container of design is also 72mm (± 5mm).
A kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container of the utility model, hard undisturbed soil, soft rock class are drilled through with the little drill bit of beam drill in advance, again with lathe for machining to the careful processing of sample, ensure cylinder sample surface smooth, the diameter of sample be coupled for sliding with the internal diameter of consolidation container; Cut the height grinding sample and allow to consolidation container; Sample is put into consolidation container, starts loading and record deformation data; Test method is with existing YS-1 type consolidometer test method.
Claims (8)
1. a high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container, is characterized in that, comprises pressurization upper cover (11), retaining ring (12) and two permeable backing plates (13);
Retaining ring (12) is cylindrical shape, and the height of retaining ring is: 55mm, and external diameter is 90mm, and internal diameter is: 30.025mm;
Sample to be tested (14) and two permeable backing plates (13) are arranged in the endoporus of retaining ring (12), and in two permeable backing plates (13) one be positioned at sample to be tested (14) top, one be positioned at sample to be tested (14) below;
Permeable backing plate (13) is round pie, and thickness is 5mm, and diameter is 30mm; One side of permeable backing plate (13) is provided with five concentric annular grooves; Each annulus groove width 1mm, adjacent rings groove interval 1.5mm; Some permeable apertures (130) running through permeable backing plate (13) are equipped with in five annular grooves; The diameter of permeable aperture (130) is 1mm; The permeable backing plate (13) being positioned at sample to be tested (14) top arranges one of annular groove and faces up, and the permeable backing plate (13) being positioned at sample to be tested (14) below arranges one of annular groove and faces down;
The permeable backing plate (13) being positioned at sample to be tested (14) top is provided with pressurization upper cover (11); Pressurization upper cover (11) comprises the right cylinder (110) of bottom and is positioned at the Rotary-table (111) of cylinder top end; Rotary-table (111) height is: 7mm, and right cylinder (110) height is: 15mm; Rotary-table (111) top is provided with ball recess (112), and the degree of depth of this ball recess (112) is: 4mm, and the radius of spherical is: 12mm.
2. a kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container according to claim 1, is characterized in that, pressurization upper cover (11) bottom directly contacts with permeable backing plate (13) end face being positioned at sample to be tested (14) top; Pressurization arranges and evenly arranges four vertical drainage grooves (113) and be positioned at cruciform transverse direction drainage groove (114) arranged bottom upper cover (11) that pressurize and be connected in upper cover (11) week, and width, the degree of depth of vertical drainage groove (113) and horizontal drainage groove (114) are 1mm; The bottom of pressurization upper cover (11) is provided with the annular drainage groove (115) matched with the current groove (131) on permeable backing plate (13).
3. a kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container according to claim 1, is characterized in that, five annular grooves are provided with 4,8,12,16,20 permeable apertures (130) from the inside to the outside successively.
4. a kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container according to claim 1, it is characterized in that, sample to be tested (14) diameter is 30mm, is highly 40mm.
5. a kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container according to claim 1, is characterized in that, being coupled between sample to be tested (14) with retaining ring (12) endoporus for sliding.
6. a kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container according to claim 1, is characterized in that, the external diameter of sample to be tested (14) and the internal diameter of retaining ring (12) are H7/f7 tolerance fit.
7. a kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container according to claim 1, is characterized in that, be provided with one deck filter paper between permeable backing plate (13) and sample to be tested (14).
8. a kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container according to claim 1, is characterized in that, pressurization upper cover (11), retaining ring (12) and two permeable backing plates (13) are made by 40# steel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072939.9U CN204439455U (en) | 2015-02-02 | 2015-02-02 | A kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520072939.9U CN204439455U (en) | 2015-02-02 | 2015-02-02 | A kind of high-pressure consolidation apparatus UHV (ultra-high voltage) consolidation container |
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|---|---|
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442229A (en) * | 2016-10-20 | 2017-02-22 | 中国水利水电科学研究院 | Large-buried-depth soil permeability coefficient and moisture diffusion coefficient measuring system and method |
| CN110361258A (en) * | 2018-04-10 | 2019-10-22 | 中国矿业大学(北京) | A kind of saturable sliding high-pressure consolidation apparatus device |
-
2015
- 2015-02-02 CN CN201520072939.9U patent/CN204439455U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442229A (en) * | 2016-10-20 | 2017-02-22 | 中国水利水电科学研究院 | Large-buried-depth soil permeability coefficient and moisture diffusion coefficient measuring system and method |
| CN106442229B (en) * | 2016-10-20 | 2019-11-01 | 中国水利水电科学研究院 | A kind of great burying soil permeability coefficient and moisture diffusion coefficients measure system and method |
| CN110361258A (en) * | 2018-04-10 | 2019-10-22 | 中国矿业大学(北京) | A kind of saturable sliding high-pressure consolidation apparatus device |
| CN110361258B (en) * | 2018-04-10 | 2021-02-26 | 中国矿业大学(北京) | Saturable sliding high-pressure consolidation instrument |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20180202 |