CN104198374A - Contact surface bonding strength measurement system - Google Patents
Contact surface bonding strength measurement system Download PDFInfo
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- CN104198374A CN104198374A CN201410429297.3A CN201410429297A CN104198374A CN 104198374 A CN104198374 A CN 104198374A CN 201410429297 A CN201410429297 A CN 201410429297A CN 104198374 A CN104198374 A CN 104198374A
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- drag hook
- cohesive strength
- measuring system
- pad
- steel model
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Abstract
The invention provides a contact surface bonding strength measurement system which can be applied to in-situ measurement and can be further applied to experimental measurement. The contact surface bonding strength measurement system comprises a test piece steel mold and a counter-force adjusting rack which are fixedly arranged on a sticky object below by virtue of expansion screws, wherein a pre-buried component is mounted inside the test piece steel mold; a pull ring is arranged above the pre-buried component; a jack is fixedly arranged on the counter-force adjusting rack; a one-way hook buckle is arranged above the jack; a one-way hook is arranged on the one-way hook buckle; the lower part of the one-way hook is hooked on the pull ring; a digital manual pump is connected with the jack. The contact surface bonding strength measurement system provided by the invention can be applied to in-situ measurement, can be further applied to experimental measurement and is relatively high in measurement precision, simple in structure and convenient to operate.
Description
Technical field
The present invention relates to a kind of measuring system, especially a kind of surface of contact cohesive strength measuring system.
Background technology
Along with carrying out of a large amount of underground workss of China, especially building of tunnel engineering, quality is protected in the spray of its cavern's rock surface, and the cohesive strength problem of the surface of contact between crag and sprayed concrete seems very important.Whether its intensity reaches designing requirement, is directly connected to the quality safety of underground works and the reliability of engineering.So it is very important to construction quality and safety to develop a kind of measuring system of comprehensive concrete-rock surface of contact cohesive strength.
But, exist larger defect and Restriction of the Measuring in measuring system and the measuring technique of engineering circles measurement sprayed concrete-rock surface of contact cohesive strength at present.The first, the measuring system or the equipment that are applicable at present in-site measurement cohesive strength are little, only have a few money measuring systems, and are under specified conditions, to measure.The second, the measuring system or the equipment application that are applicable at present in-site measurement cohesive strength are more loaded down with trivial details, and measuring accuracy is lower.The 3rd, the measuring system of current in-site measurement cohesive strength or equipment only can be measured the sprayed concrete of floor, cavern and sidewall.The waist of cavern and hole top cannot be measured, but these two positions sprayed concrete and the weakest link of rock surface of contact cohesive strength just.The size of its cohesive strength directly affects construction quality safety.
Summary of the invention
The invention provides one and can be used for in-site measurement, more can be used for the surface of contact cohesive strength measuring system of experiment measuring.
Realize the surface of contact cohesive strength measuring system of the object of the invention, comprise by swell fixture and be fixed on the steel model on the bonding object of below and regulate reaction frame, in described steel model, preburied component is housed, described preburied component top is provided with draw ring; On described adjusting reaction frame, be fixed with lifting jack, described lifting jack top is provided with unidirectional drag hook buckle, and described unidirectional drag hook buckle is provided with unidirectional drag hook, and described unidirectional drag hook below is hooked on draw ring; On described lifting jack, be connected with digital manual pump.
Described adjusting reaction frame comprises cruciform back up pad and four support bars, and the center of described back up pad is provided with center pit, and described unidirectional drag hook is through center pit; Four teats of described back up pad are provided with respectively regulating tank, and described support bar passes regulating tank by setting nut and is fixed in back up pad.
Described preburied component comprises horizontal clamp and the vertical bar that center is fixed together, and the top of described vertical bar is provided with draw ring, and below is provided with horizontal loops, and the centre of described horizontal loops is provided with cross; The outside surface of described steel model top is provided with clamp, and described horizontal card subcard is on the clamp of steel model.
The beneficial effect of surface of contact cohesive strength measuring system of the present invention is as follows:
Surface of contact cohesive strength measuring system of the present invention, can be used for in-site measurement, more can be used for experiment measuring, and measuring accuracy is higher; Simple in structure, easy to operate.
Brief description of the drawings
Fig. 1 is the structural representation of surface of contact cohesive strength measuring system of the present invention.
Fig. 2 is the structural representation of the adjusting reaction frame of surface of contact cohesive strength measuring system of the present invention.
Fig. 3 is the preburied component of surface of contact cohesive strength measuring system of the present invention and the structural representation of steel model.
Fig. 4 is the structural representation of the horizontal loops of surface of contact cohesive strength measuring system of the present invention.
Embodiment
As shown in Fig. 1～4, surface of contact cohesive strength measuring system of the present invention, comprise by swell fixture 2 and be fixed on the steel model 9 on the bonding object 1 of below and regulate reaction frame 3, in described steel model 9, preburied component 7 is housed, described preburied component 7 tops are provided with draw ring 8; On described adjusting reaction frame 3, be fixed with lifting jack 4, described lifting jack 4 tops are provided with unidirectional drag hook buckle 6, and described unidirectional drag hook buckle 6 is provided with unidirectional drag hook 5, and described unidirectional drag hook 5 belows are hooked on draw ring 8; On described lifting jack 4, be connected with digital manual pump 11.
Described adjusting reaction frame 3 comprises cruciform back up pad 12 and four support bars 10, and described back up pad 12 center is provided with center pit 14, and described unidirectional drag hook 5 is through center pit 14; Four teats of described back up pad 12 are provided with respectively regulating tank 13, and described support bar 10 is fixed in back up pad 12 through regulating tank 13 by setting nut 15.
Described preburied component 7 comprises horizontal clamp 71 and the vertical bar 72 that center is fixed together, and the top of described vertical bar 72 is provided with draw ring 8, and below is provided with horizontal loops 73, and the centre of described horizontal loops 73 is provided with cross 74; The outside surface of described steel model 9 tops is provided with clamp 91, and described horizontal clamp 71 is stuck on the clamp 91 of steel model 9.
The course of work of surface of contact cohesive strength measuring system of the present invention is as follows:
Taking below dung body as rock, top bonding object is that concrete is example:
First choose sprayed concrete and rock cohesive strength test point; Surface of contact is done to injection pre-treatment-dedusting, the separate type steel model of selected diameter D is fixed on to rock surface by swell fixture; After installation, steel model inside surface is coated release agent again, is convenient to follow-up form removal work, then preburied component is stuck on steel model; At the outside parcel of the isolated material with 5cm～6cm of punching block, ensure itself and concrete isolation around, form independent detection scene.Execution sprayed concrete work, when the spray of test specimen surface not at ordinary times, polish work.Treating that striking time reaches is, first removes wrappage, then tears steel model open, swell fixture need not be extracted.Sprayed concrete test specimen is proceeded maintenance.
In the time that sprayed concrete test specimen reaches the curing period of design, prepare to measure.4 support bars are fixed on original setscrew, regulate adjusting reaction frame, start digital manual pump and just can directly measure.Can value.
Embodiment recited above is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under spiritual prerequisite not departing from the present invention; various distortion and improvement that the common engineering technical personnel in this area make technical solution of the present invention, all should fall in the definite protection domain of claims of the present invention.
Claims (3)
1. surface of contact cohesive strength measuring system, is characterized in that: comprise by swell fixture and be fixed on the steel model on the bonding object of below and regulate reaction frame, in described steel model, preburied component is housed, described preburied component top is provided with draw ring; On described adjusting reaction frame, be fixed with lifting jack, described lifting jack top is provided with unidirectional drag hook buckle, and described unidirectional drag hook buckle is provided with unidirectional drag hook, and described unidirectional drag hook below is hooked on draw ring; On described lifting jack, be connected with digital manual pump.
2. surface of contact cohesive strength measuring system according to claim 1, is characterized in that: described adjusting reaction frame comprises cruciform back up pad and four support bars, and the center of described back up pad is provided with center pit, and described unidirectional drag hook is through center pit; Four teats of described back up pad are provided with respectively regulating tank, and described support bar passes regulating tank by setting nut and is fixed in back up pad.
3. surface of contact cohesive strength measuring system according to claim 1 and 2, it is characterized in that: described preburied component comprises horizontal clamp and the vertical bar that center is fixed together, the top of described vertical bar is provided with draw ring, and below is provided with horizontal loops, and the centre of described horizontal loops is provided with cross; The outside surface of described steel model top is provided with clamp, and described horizontal card subcard is on the clamp of steel model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410429297.3A CN104198374A (en) | 2014-08-28 | 2014-08-28 | Contact surface bonding strength measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410429297.3A CN104198374A (en) | 2014-08-28 | 2014-08-28 | Contact surface bonding strength measurement system |
Publications (1)
| Publication Number | Publication Date |
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| CN104198374A true CN104198374A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410429297.3A Pending CN104198374A (en) | 2014-08-28 | 2014-08-28 | Contact surface bonding strength measurement system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677596A (en) * | 2017-09-30 | 2018-02-09 | 华北水利水电大学 | The method of indoor test rock and concrete binding interface tensile strength |
| CN109959605A (en) * | 2019-04-29 | 2019-07-02 | 中国水利水电第十二工程局有限公司 | On-site test gunite concrete and country rock bond strength testing method |
| CN109959606A (en) * | 2019-04-29 | 2019-07-02 | 中国水利水电第十二工程局有限公司 | The device of on-site test gunite concrete and country rock bonding strength test |
| CN110320156A (en) * | 2019-05-30 | 2019-10-11 | 中铁科学研究院有限公司 | A method of test gunite concrete and spraying waterproof adhesive strength |
| CN110514585A (en) * | 2019-09-10 | 2019-11-29 | 中国水利水电第五工程局有限公司 | A kind of gunite concrete and country rock adhesion strength measurement device |
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| CN202614661U (en) * | 2012-06-11 | 2012-12-19 | 西南交通大学 | Improved device for determining bonding strength of sprayed concrete and rocks |
| CN103293098A (en) * | 2013-05-17 | 2013-09-11 | 中国科学院武汉岩土力学研究所 | Field measurement device for bonding strength of sprayed concrete-rock contact surface |
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| JPH03191847A (en) * | 1989-04-27 | 1991-08-21 | Sumitomo Metal Ind Ltd | Method for measuring shear adherence strength of machined surface film |
| CN101451947A (en) * | 2008-12-29 | 2009-06-10 | 联合汽车电子有限公司 | Measuring appliance for axial direction bond strength of sphere type rivet electric contact and method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677596A (en) * | 2017-09-30 | 2018-02-09 | 华北水利水电大学 | The method of indoor test rock and concrete binding interface tensile strength |
| CN107677596B (en) * | 2017-09-30 | 2018-12-28 | 华北水利水电大学 | The method of indoor test rock and concrete binding interface tensile strength |
| CN109959605A (en) * | 2019-04-29 | 2019-07-02 | 中国水利水电第十二工程局有限公司 | On-site test gunite concrete and country rock bond strength testing method |
| CN109959606A (en) * | 2019-04-29 | 2019-07-02 | 中国水利水电第十二工程局有限公司 | The device of on-site test gunite concrete and country rock bonding strength test |
| CN109959605B (en) * | 2019-04-29 | 2021-11-19 | 中国水利水电第十二工程局有限公司 | Test method for detecting bonding strength of sprayed concrete and surrounding rock on site |
| CN110320156A (en) * | 2019-05-30 | 2019-10-11 | 中铁科学研究院有限公司 | A method of test gunite concrete and spraying waterproof adhesive strength |
| CN110514585A (en) * | 2019-09-10 | 2019-11-29 | 中国水利水电第五工程局有限公司 | A kind of gunite concrete and country rock adhesion strength measurement device |
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Application publication date: 20141210 |
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