CN103969097B - A kind of sample producing device tested with Soil Interface friction performance for anchor or stake and method - Google Patents
A kind of sample producing device tested with Soil Interface friction performance for anchor or stake and method Download PDFInfo
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- CN103969097B CN103969097B CN201410176977.9A CN201410176977A CN103969097B CN 103969097 B CN103969097 B CN 103969097B CN 201410176977 A CN201410176977 A CN 201410176977A CN 103969097 B CN103969097 B CN 103969097B
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Abstract
The invention discloses a kind of sample producing device for anchor or stake and the test of Soil Interface friction performance and method, the extension bar (702) being connected including core bar (701), upper centralizer, lower centralizer with described core bar (701) upper end.Use sample producing device of the present invention and method, can make in batches, simply, in high quality with Soil Interface friction performance pilot system for anchor or stake and meet the sample that EXPERIMENTAL DESIGN arbitrarily requires, thus substantially increase test efficiency, save experimentation cost, and can thereby obtain substantial amounts of test data, research different affecting factors and various complex working condition to anchor soil or the impact of stake Soil Interface friction performance.
Description
Technical field
The present invention relates to room build, highway, railway, municipal administration, commonly used anchor pole or pile foundation test technology in the engineering such as mine,
Particularly relate to a kind of sample producing device tested for anchor or stake and method with Soil Interface friction performance.
Background technology
Anchor pole and pile foundation technology be widely used in room build, highway, railway, municipal administration, the engineering field such as mine, its bearing capacity tries
Test and generally carry out in situ in outdoor.In recent years, have Some Universities and scientific research institutions by indoor model test test anchor or stake with
Soil Interface friction performance, but be all to test in geosyncline or model casing, its research technique and method and outdoor in-situ test phase
Similar, they are as in-situ test, all there is difference time-consuming, laborious, repeatable and result of the test comparability difference etc. and lack
Fall into.Anchor or stake and Soil Interface friction performance is estimated by the direct shear test of soil with works to this end, also have both at home and abroad, but because being somebody's turn to do
Method is not inconsistent with the actual condition of anchor or stake, it is impossible to simulation anchor-soil or the true loading process at Pile Soil interface, acquired results can not be true
The real actual interface friction performance reflecting anchor or stake and soil.
Research and develop a set of simplicity, easy be consistent with actual condition, pilot system and the separable anchor-soil of test sample or Pile Soil interface
Friction performance laboratory test instrument and test method are imperative, and the sample being for experiment makes, especially anchoring body or stake
The molding of body, just becomes the key preparing high-quality sample.
Summary of the invention
Present invention aim to overcome the deficiencies in the prior art, it is provided that a kind of simple, convenient, can being used in indoor making
The sample producing device of anchor or stake and the test of Soil Interface friction performance and manufacture method.
For solving above technical problem, the technical solution adopted in the present invention is: one is used for anchor or stake and Soil Interface friction performance
The sample producing device of test, the extension bar being connected with described core bar upper end including core bar, upper centralizer, lower centralizer,
Described upper centralizer includes that upper cover, a plurality of lower ends are fixed on the support covered on described；By described pedestal upper end and ring
Shape centering folder torr is affixed, makes described centering folder torr placed in the middle, and utilizes the centering folder being placed in described centering folder torr to limit described core bar
The extension bar of upper end, thus realize described core bar upper end centering；
Described lower centralizer includes chassis, a lower half be partially disposed in described center chassis pit to Intermediate gasket, described centering pad
Sheet is connected with described core bar lower end, makes described core bar lower end centering；
Further, described upper cover is buckled in the sample cylinder top of sample by upper cover outer rim, and the internal diameter of described upper cover outer rim is with described
The external diameter close fit of sample cylinder；An elastic Upper gasket it is provided with between described upper cover bottom surface and the sun-dried mud brick end face of sample, Upper gasket
The space that when effect is to prevent gel from irrigating, serosity penetrates between upper cover and sun-dried mud brick；Described upper cover and the center of described Upper gasket
Bore dia is consistent with the center-hole diameter of described sun-dried mud brick.
Further, described chassis is clasped bottom cylinder pad by chassis outer rim, and the cylinder pad of the internal diameter of described chassis outer rim and sample
External diameter close fit；An elastic lower gasket, the effect of lower gasket it is provided with between the sun-dried mud brick bottom surface of described chassis surface and sample
The space that when being to prevent gel from irrigating, serosity penetrates between chassis and sun-dried mud brick.
Further, the described sun-dried mud brick center-hole diameter close fit to Intermediate gasket external diameter Yu sample；Described to Intermediate gasket with described
Core bar lower end connects with thread forms.
Further, described centering folder is opposite opened, and after merging, intermediate formation centering folder centre bore is used for limiting described core bar upper end
Extension bar, and every centering folder is respectively arranged with prominent outer rim, in order to be hung in described centering folder torr.
Further, described core bar is reinforcing bar, is connected with thread forms with extension bar.
A kind of said apparatus is utilized to make the manufacture method for anchor or stake with Soil Interface friction performance test sample, including following step
Rapid:
(1) the described upper surface to Intermediate gasket being coated releasing agent, the lower end of described core bar is screwed into described to Intermediate gasket
Centre bore, then from described cylinder pad side, the described half to Intermediate gasket is tucked into the bottom of described sun-dried mud brick centre bore, another
Partly expose；
(2) pad is set on upper berth, described chassis, by the sample blanks being made up of described sample cylinder, screw, cylinder pad and sun-dried mud brick and centering
Pad and core bar entirety buckle in the outer rim on described chassis, and make the described half exposing Intermediate gasket drop into the recessed of described chassis
In hole；
(3) lay Upper gasket at described sun-dried mud brick upper surface, the outer rim of described upper cover is buckled in described sample cylinder top, by described centering
The outer rim of folder hangs in described centering folder torr；
(4) described core bar and extension bar being threaded connection, described extension bar is by described centering folder clamping；
(5) Binder Materials configured is circulated in the central cavity of sun-dried mud brick, with spillikin vibrations closely knit after, maintenance to be gelled material
Material reaches design strength, forms gel.
(6) leave described sample cylinder and the sun-dried mud brick of parcel, gel and core bar, remove other parts, and with pocket knife scraping institute
State sun-dried mud brick (110) so that it is upper and lower surface flushes with described sample cylinder (101) top, bottom surface respectively, and sample makes molding.
Further, described Binder Materials is mortar, concrete or resin.
The technical solution adopted in the present invention has the beneficial effect that
Use sample producing device of the present invention and method, can be anchor or stake with soil with Soil Interface friction performance pilot system in batches,
Make simply, in high quality and meet the sample that EXPERIMENTAL DESIGN arbitrarily requires, thus substantially increase test efficiency, save
Experimentation cost, and can thereby obtain substantial amounts of test data, research different affecting factors and various complex working condition are to anchor-soil or stake
The impact of-Soil Interface friction performance.
The present invention advantage and effect will further describe in a specific embodiment.
Accompanying drawing explanation
Fig. 1 is the composition structural representation of sample producing device of the present invention；
Fig. 2 is the assembling structural representation of sample producing device of the present invention；
Fig. 3 is the internal structure schematic diagram of sample producing device of the present invention；
Fig. 4 is the sample schematic diagram after utilizing the present invention to make.
In figure entitled shown in label: 101-sample cylinder；102-cylinder pad；109-fixes screw；110-sun-dried mud brick；501-upper cover；501a-
Outer rim；502-support；503-centering folder torr；504-centering is pressed from both sides；504a-outer rim；504b-centre bore；505-Upper gasket；601-
Chassis；601a-outer rim；601b-pit；602-is to Intermediate gasket；602a-centre bore；603-lower gasket；701-core bar；702-connects
Stock；703-gel.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the present invention are further described.
As shown in figures 1-4, a kind of sample blanks producing device tested with Soil Interface friction performance for anchor or stake and the following institute of method
State:
Intermediate gasket 602 upper surface coated releasing agent by external diameter and sun-dried mud brick 110 center-hole diameter close fit, will be by reinforcing bar system
Core bar 701 lower end become is screwed into the centre bore 602a to Intermediate gasket 602, then from cylinder pad 102 side by described right
The half of Intermediate gasket 602 is tucked into the bottom of sun-dried mud brick 110 centre bore, and second half exposes.
Setting pad 603 on upper berth, chassis 601, lower gasket 603 can be made up of elastomeric material, it is therefore intended that make chassis 601 with
Sun-dried mud brick 110 lower surface is fitted, and when preventing potting compound gel material, serosity overflows and infiltrates into sun-dried mud brick 110 lower surface.
Utilize outer rim 601a on chassis 601 by whole for the sample blanks being made up of sample cylinder 101, screw 109, cylinder pad 102 and sun-dried mud brick 110
Body buckles into, and makes the half exposing Intermediate gasket 602 drop in the pit 601b on chassis 601, chassis outer rim 601a interior
Footpath and the external diameter close fit of cylinder pad 102, chassis 601 pit 601b diameter is slightly larger than to Intermediate gasket 602 external diameter.
Laying Upper gasket 505 at sun-dried mud brick 110 upper surface, its material is identical with lower gasket, it is therefore intended that make upper cover 501 and sun-dried mud brick
110 upper surfaces laminatings, when preventing potting compound gel material, serosity overflows and infiltrates into sun-dried mud brick 110 upper surface.Outer rim by upper cover 501
501a is buckled in sample cylinder 101 top, the external diameter close fit of the internal diameter of upper cover outer rim 501a and sample cylinder 101, upper cover 501 and upper
The center-hole diameter of pad 505 is consistent with the center-hole diameter of sun-dried mud brick 110.
3 supports 502 are affixed with the side of upper cover 501, the most affixed ring-type centering in the top folder torr 503 of support 502,
Its outer rim 504a is utilized to hang in centering folder torr 503 on split centering folder 504.By extension bar 702 by screw thread and core bar
701 connect, and extension bar 702 upper end is clamped by the centre bore 504b of centering folder 504, is achieved in core bar 701 upper end centering.
By in the mortar injection that configured to the centre bore of sun-dried mud brick 110, upper tops has a funnel-form domatic, beneficially Binder Materials to
Lower flowing.With spillikin Binder Materials is shaken closely knit after, need maintenance reach Binder Materials play design strength time.Maintenance is complete
Bi Hou, dismantles upper centralizer and lower centralizer, extension bar 702 of back-outing, owing to having smeared releasing agent before, and cylinder pad 102 He
Intermediate gasket 602 can be easily removed, then with pocket knife scraping sun-dried mud brick 110 so that it is upper and lower surface respectively with described sample cylinder 101
Top, bottom surface flush, specimen molding.
The specific embodiment of the invention in sum is only the preferred embodiment of the present invention, is not intended to limit present invention protection
The restriction of scope.Therefore, any made within the technical characteristic of the present invention change, modify, substitute, combine or simplify,
All should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (8)
1. the sample producing device tested with Soil Interface friction performance for anchor or stake, including core bar (701) and described core
The extension bar (702) that bar (701) upper end connects, upper centralizer, lower centralizer, it is characterised in that:
Described upper centralizer includes upper cover (501), and the support (502) on described upper cover (501) is fixed in a plurality of lower ends；Logical
Cross described support (502) upper end affixed with ring-type centering folder torr (503), make described centering folder torr (503) placed in the middle, and utilize
It is placed in the folder of the centering in described centering folder torr (503) (504) and limits the extension bar (702) of described core bar (701) upper end, from
And realize described core bar (701) upper end centering；
Described lower centralizer includes chassis (601), and a lower half is partially disposed in described chassis (601) center pit (601b)
To Intermediate gasket (602), described Intermediate gasket (602) is connected with described core bar (701) lower end, makes under described core bar (701)
End centering；
Described upper cover (501) is buckled in sample cylinder (101) top of sample, and upper cover outer rim (501a) by upper cover outer rim (501a)
The external diameter close fit of internal diameter and sample cylinder (101)；
Described chassis (601) is clasped bottom cylinder pad (102) by chassis outer rim (601a), and chassis outer rim (601a)
The external diameter close fit of the cylinder pad (102) of internal diameter and sample；
Described sun-dried mud brick (110) the center-hole diameter close fit to Intermediate gasket (602) external diameter Yu sample.
A kind of sample producing device tested with Soil Interface friction performance for anchor or stake the most according to claim 1, it is special
Levy and be: between sun-dried mud brick (110) end face of described upper cover (501) bottom surface and sample, be provided with an elastic Upper gasket (505)；
Described upper cover (501) is consistent with the center-hole diameter of described sun-dried mud brick (110) with the center-hole diameter of described Upper gasket (505).
A kind of sample producing device tested with Soil Interface friction performance for anchor or stake the most according to claim 1, it is special
Levy and be: between sun-dried mud brick (110) bottom surface of (601) surface, described chassis and sample, be provided with an elastic lower gasket (603).
A kind of sample producing device tested with Soil Interface friction performance for anchor or stake the most according to claim 1, it is special
Levy and be: described Intermediate gasket (602) is connected with thread forms with described core bar (701) lower end.
A kind of sample producing device tested with Soil Interface friction performance for anchor or stake the most according to claim 1, it is special
Levying and be, described centering folder (504) is opposite opened, and after merging, intermediate formation centering folder centre bore (504b) is used for limiting described
The extension bar (702) of core bar (701) upper end, and every centering folder (504) is respectively arranged with prominent outer rim (504a), in order to
It is hung in described centering folder torr (503).
A kind of sample producing device tested with Soil Interface friction performance for anchor or stake the most according to claim 1, it is special
Levying and be, described core bar (701) is reinforcing bar, is connected with thread forms with extension bar (702).
7. one kind utilizes in the claims sample producing device described in any one to make for anchor or stake and Soil Interface frictional resistance
The manufacture method of energy test sample, it is characterised in that comprise the following steps:
(1) the described upper surface to Intermediate gasket (602) being coated releasing agent, screw thread is passed through in the lower end of described core bar (701)
Be screwed into the described centre bore to Intermediate gasket (602) (602a), then from cylinder pad (102) side by described to Intermediate gasket (602)
Half be tucked into the bottom of sun-dried mud brick (110) centre bore, second half exposes；
(2) pad (603) is set on described chassis (601) upper berth, will be by sample cylinder (101), screw (109), cylinder pad (102)
The sample blanks that forms with sun-dried mud brick (110) and Intermediate gasket (602) and core bar (701) entirety are buckled into described chassis (601)
In outer rim (601a), and the described half that Intermediate gasket (602) is exposed is made to drop into the pit (601b) of described chassis (601)
In；
(3) Upper gasket (505) is laid at described sun-dried mud brick (110) upper surface, by the outer rim (501a) of described upper cover (501)
It is buckled in described sample cylinder (101) top, the outer rim (504a) of described centering folder (504) is hung over described centering folder torr (503)
On；
(4) described core bar (701) and extension bar (702) being threaded connection, described extension bar (702) is by described
Centering folder (504) clamping；
(5) Binder Materials configured is circulated in the central cavity of sun-dried mud brick (110), shake closely knit after, maintenance to gelling
Material reaches design strength, forms gel (703)；
(6) leave described sample cylinder (101) and sun-dried mud brick (110), gel (703) and the core bar (701) of parcel, move
Except other parts, and with sun-dried mud brick (110) described in pocket knife scraping so that it is upper and lower surface respectively with described sample cylinder (101) top,
Bottom surface flushes, and sample makes molding.
A kind of manufacture method for anchor or stake with Soil Interface friction performance test sample the most according to claim 7, it is special
Levying and be, described Binder Materials is mortar, concrete or resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410176977.9A CN103969097B (en) | 2014-04-29 | 2014-04-29 | A kind of sample producing device tested with Soil Interface friction performance for anchor or stake and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410176977.9A CN103969097B (en) | 2014-04-29 | 2014-04-29 | A kind of sample producing device tested with Soil Interface friction performance for anchor or stake and method |
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| Publication Number | Publication Date |
|---|---|
| CN103969097A CN103969097A (en) | 2014-08-06 |
| CN103969097B true CN103969097B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410176977.9A Active CN103969097B (en) | 2014-04-29 | 2014-04-29 | A kind of sample producing device tested with Soil Interface friction performance for anchor or stake and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105784590B (en) * | 2016-04-22 | 2018-08-14 | 华北水利水电大学 | Test the method and device of anchor system anchoring interface binding intensity |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5938539B2 (en) * | 1979-11-07 | 1984-09-18 | 川崎地質株式会社 | Adhesion test method between anchor body and installation ground |
| JP4297234B2 (en) * | 1999-11-08 | 2009-07-15 | 岡部株式会社 | Anchor material fixing force measurement method |
| JP2002267593A (en) * | 2001-03-08 | 2002-09-18 | Okabe Co Ltd | Method for testing anchor body, method for adjusting, and supporting table and load cell used in these methods |
| CN102628767B (en) * | 2012-03-23 | 2014-01-22 | 河海大学 | Device and method for testing mechanical properties of pile-soil contact surface |
| CN103528949B (en) * | 2013-10-31 | 2015-07-01 | 闫楠 | Device for testing bonding strength between anchor rod anchoring body and weathered rock mass |
| CN103558088B (en) * | 2013-11-05 | 2016-02-17 | 兰州大学 | Earthen ruins anchoring shop experiment system |
| CN203795487U (en) * | 2014-04-29 | 2014-08-27 | 湖南大学 | Sample manufacturing device used for anchor or pile interface friction tests |
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