CN201635065U - Saturation device for pore pressure static cone penetration field probe and filter ring thereof - Google Patents
Saturation device for pore pressure static cone penetration field probe and filter ring thereof Download PDFInfo
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- CN201635065U CN201635065U CN2010201728564U CN201020172856U CN201635065U CN 201635065 U CN201635065 U CN 201635065U CN 2010201728564 U CN2010201728564 U CN 2010201728564U CN 201020172856 U CN201020172856 U CN 201020172856U CN 201635065 U CN201635065 U CN 201635065U
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Abstract
The utility model discloses a novel device for saturation of a pore pressure static cone penetration probe measuring system and a filter ring thereof. The device mainly comprises a probe (1), a pore pressure filter ring (9), a sealed container (3) and a vacuum pump (7), wherein the middle of the upper part of the sealed container (3) is provided with a small pore; the root part of a cone angle of the lower part of the probe (1) is provided with the pore pressure filter ring (9); the bottom half part of the probe (1) is inserted into the sealed container (3) by the small pore; an O-shaped sealing ring (4) is embedded between the probe (1) and the small pore; the upper part of the sealed container (3) is additionally provided with a clamp (2); the inside of the sealed container (3) is filled with glycerin (8); the sealed container (3) is connected with the vacuum pump (7) by a gas guide tube (5); and the upper part of the vacuum pump (7) is provided with an exhaust valve (6). The saturation device has the characteristics of lightness, labor saving, high efficiency and the like and provides a powerful saturation tool for the in situ pore water pressure static cone penetration testing practice.
Description
Technical field
The utility model relates to a kind of hole that is used for and presses static sounding probe measurement system and the saturated new equipment of filtering ring, belongs to the technical field of geotechnical investigation.
Background technology
Static sounding technology (CPT) is as topmost in-situ testing technique, the advantage that have rapid and convenient, need not take a sample, the image data amount is big, interference is little and expense is cheap, the major works that be particularly useful for speedway, this linear distribution of railway, haves a wide reach.The static sounding technology is meant the sounding rod indentation test soil layer that utilizes pressure apparatus will have contact probe, the static point resistance of throughput examining system test soil, sidewall frictional resistance etc., can determine some basic physico mechanical characteristic of soil, as the modulus of deformation of soil, the allowable bearing of soil etc.The static sounding technology is the history in existing more than 80 year so far.It is the novel in-situ testing technique that rises in the world the eighties in 20th century that static sounding technology (hereinafter to be referred as CPTU) is pressed in multi-functional hole, compare with the quiet spy of single doube bridge that China is traditional, have theoretical system, multiple functional, advantages such as parameter is accurate, precision is high, good stability.Both can accurately divide soil layer, carry out the great soil group differentiation with the sensitivity that press in super hole, can ask for native in-situ consolidation coefficient, transmission coefficient, kinetic parameter, structural parameters, bearer properties etc. again, be used widely in the civil engineering design abroad, it is that installing hole is pressed element on the basis of traditional static sounding, can survey the pore water pressure in the penetration process, this technology has partly or entirely replaced probing and the sampling in the engineering investigation.
But in CPTU on-the-spot test process, the saturated of hole pressing system is to guarantee the correct key that press in the hole that measures.If probe hole presses measurement system unsaturated, then when measuring, to understand some pore water pressure and in transmittance process, consume on compressed air, some water yield is additional again after the air compression enters in the system.Can cause like this hole press test value than actual value the on the low side and peak hysteresis effect that disappears.Because excess pore water pressure value that the unsaturation probe records and dispersal curve thereof and actual difference are bigger, can't use in engineering investigation, cause test failure.Thereby in CPTU test, must guarantee to test preceding hole and press probe measurement system and the hole press filtration ring will be, and in test process, to keep its saturation ratio by strictly saturated.Whole process comprises hole press that element is saturated, probe is saturated (particularly hole pressure sensor close on pressure chamber), probe assembling and in particular cases necessary safeguard measure (as prebored hole).
Summary of the invention
Technical problem: the technical problems to be solved in the utility model is to press the static sounding hole to press a probe measurement system and a filtration ring filling difficult problem at existing hole, proposes a kind of saturation device that is applicable to on-the-spot simple and fast.
Technical scheme: hole of the present utility model presses the saturation device of static sounding probe measurement system and filtering ring to comprise: probe, anchor clamps, airtight container, O-ring seals, wireway, outlet valve, vacuum pump, glycerine, hole press filtration ring.
This device mainly comprises probe, hole press filtration ring, airtight container and vacuum pump; Open an aperture in the middle of the airtight container top, the cone angle root of probe bottom is provided with hole press filtration ring, the latter half of this probe penetrates in the airtight container by this aperture, between probe and described aperture, be inlaid with " O " shape sealing ring, airtight container top is with anchor clamps, and sealed container interior is marked with glycerine; Adopt wireway to link to each other between airtight container and the vacuum pump; Be provided with outlet valve on vacuum pump top.
Beneficial effect: the utility model is pressed the static sounding hole to press the probe measurement system at existing hole and is filtered a ring filling difficult problem, proposes a kind of saturation device that is applicable to on-the-spot simple and fast.The advantage that this device has rapid and convenient, need not take a sample, the image data amount is big, interference is little and expense is cheap, the major works that be particularly useful for speedway, this linear distribution of railway, haves a wide reach.
Description of drawings
Fig. 1 is component arrangement figure of the present utility model;
Wherein have: probe 1, anchor clamps 2, airtight container 3, " O " shape sealing ring 4, wireway 5, outlet valve 6, vacuum pump 7, glycerine 8, hole press filtration ring 9.
The specific embodiment
Hole of the present utility model presses the static sounding hole to press the saturation device critical piece of probe measurement system and filtering ring thereof to be:
Probe 1, hole press filtration ring 9, airtight container 3 and vacuum pump 7; Open an aperture in the middle of airtight container 3 tops, the cone angle root of 1 bottom of popping one's head in is provided with hole press filtration ring 9, the latter half of this probe 1 penetrates in the airtight container 3 by this aperture, between probe 1 and described aperture, be inlaid with " O " shape sealing ring 4, airtight container 3 tops are with anchor clamps 2, and airtight container 3 inside are marked with glycerine 8; Adopt wireway 5 to link to each other between airtight container 3 and the vacuum pump 7; Be provided with outlet valve 6 on vacuum pump 7 tops.
Have the aperture of diameter 35.7mm in the middle of airtight container 3 tops, be inlaid with " O " shape sealing ring 4 on every side, adopt anchor clamps 2 to guarantee airtight containers during test and pop one's head in 1 tight the contact.Airtight container 3 adopts wireway 5 to link to each other with vacuum pump 7.Before the piezocone test, will pour into glycerine 8 in the airtight container 3,1 bottom of will popping one's head in is immersed below the glycerine liquid level, guarantees that hole press filtration ring 9 immerses glycerine inside.Then, the outlet valve 6 of opening vacuum pump 7 vacuumizes (reaching 700mmHg), simultaneously probe is applied vibration, to reach system-wide abundant exhaust, duration is 1～2 hour, does not emerge and can stop to bleed to there being bubble, makes that probe 1 and hole press filtration ring 9 are fully saturated.
The cone angle of probe is 60 °, and diameter is 35.7mm, and the probe cross-sectional area is 10cm
2
Hole press filtration ring thickness 5mm is positioned at awl shoulder position, and the effective area ratio of probe is 0.8.
Claims (3)
1. one kind is used for hole pressure static sounding probe measurement system and filtering ring saturation device thereof, it is characterized in that this device mainly comprises probe (1), hole press filtration ring (9), airtight container (3) and vacuum pump (7); Open an aperture in the middle of airtight container (3) top, the cone angle root of probe (1) bottom is provided with hole press filtration ring (9), the latter half of this probe (1) penetrates in the airtight container (3) by this aperture, between probe (1) and described aperture, be inlaid with " O " shape sealing ring (4), airtight container (3) top is with anchor clamps (2), and airtight container (3) inside is marked with glycerine (8); Adopt wireway (5) to link to each other between airtight container (3) and the vacuum pump (7); Be provided with outlet valve (6) on vacuum pump (7) top.
2. static sounding probe measurement system and filtering ring saturation device thereof are pressed in the hole that is used for according to claim 1, it is characterized in that the cone angle of probe (1) is 60 °, and diameter is 35.7mm.
3. static sounding probe measurement system and filtering ring saturation device thereof are pressed in the hole that is used for according to claim 1, it is characterized in that hole press filtration ring (9) thickness 5mm, are positioned at awl shoulder position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201728564U CN201635065U (en) | 2010-04-27 | 2010-04-27 | Saturation device for pore pressure static cone penetration field probe and filter ring thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201728564U CN201635065U (en) | 2010-04-27 | 2010-04-27 | Saturation device for pore pressure static cone penetration field probe and filter ring thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635065U true CN201635065U (en) | 2010-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201728564U Expired - Fee Related CN201635065U (en) | 2010-04-27 | 2010-04-27 | Saturation device for pore pressure static cone penetration field probe and filter ring thereof |
Country Status (1)
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| CN (1) | CN201635065U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858073A (en) * | 2010-04-27 | 2010-10-13 | 东南大学 | Saturation device for piezocone penetration field probe and filter ring thereof |
| CN102080372A (en) * | 2010-12-14 | 2011-06-01 | 上海市城市建设设计研究院 | Self-dragging type furniture removing device |
| CN103276713A (en) * | 2013-05-07 | 2013-09-04 | 东南大学 | Environmental piezocone penetration test (CPTU) probe capable of evaluating permeability characteristic of saturated soil in site |
| CN110241803A (en) * | 2019-06-21 | 2019-09-17 | 席早阳 | Dual chamber hole pressure touching methods vacuum is saturated machine |
-
2010
- 2010-04-27 CN CN2010201728564U patent/CN201635065U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858073A (en) * | 2010-04-27 | 2010-10-13 | 东南大学 | Saturation device for piezocone penetration field probe and filter ring thereof |
| CN102080372A (en) * | 2010-12-14 | 2011-06-01 | 上海市城市建设设计研究院 | Self-dragging type furniture removing device |
| CN103276713A (en) * | 2013-05-07 | 2013-09-04 | 东南大学 | Environmental piezocone penetration test (CPTU) probe capable of evaluating permeability characteristic of saturated soil in site |
| CN110241803A (en) * | 2019-06-21 | 2019-09-17 | 席早阳 | Dual chamber hole pressure touching methods vacuum is saturated machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20140427 |