CN106442121B - A kind of research absciss layer is to the experimental rig and production method of bolt action load - Google Patents
A kind of research absciss layer is to the experimental rig and production method of bolt action load Download PDFInfo
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- CN106442121B CN106442121B CN201610534274.8A CN201610534274A CN106442121B CN 106442121 B CN106442121 B CN 106442121B CN 201610534274 A CN201610534274 A CN 201610534274A CN 106442121 B CN106442121 B CN 106442121B
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- 238000011160 research Methods 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 74
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 239000011888 foil Substances 0.000 claims abstract description 24
- 238000006073 displacement reaction Methods 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000005728 strengthening Methods 0.000 claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 238000004873 anchoring Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims description 3
- 238000004078 waterproofing Methods 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims description 2
- 239000000284 extract Substances 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/062—Special adaptations of indicating or recording means with mechanical indicating or recording means
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention provides a kind of research absciss layer to the experimental rig and production method of bolt action load, the experimental rig includes the test block of " I " fonts, the horizontal symmetrical face of the test block is equipped with reserving gaps, the anchor pole for posting foil gauge is set in the vertical section of " I " fonts test block, the both ends of the anchor pole extend respectively to the two sides up and down of test block；One groove of each formation in the left and right of the " I " fonts test block, the groove is used to place the hydraulic jack with the first amesdial, the front and rear sides of the test block are equipped with reinforcing steelframe, the steelframe of reinforcing is arranged along the corner location of groove, and upper and lower surface is equipped with strengthening steel slab in the groove；Displacement measurement system is additionally provided in the test block.The production method includes: (1) Mold Making；(2) concrete sample make；(3) anchor pole pastes foil gauge；(4) Anchor Agent makes；(5) displacement measurement system is arranged.The beneficial effects of the invention are as follows test data high reliablity, convenient for operation.
Description
Technical field
The invention belongs to mechanics study technical fields, the test more particularly, to a kind of research absciss layer to bolt action load
Device and production method.
Background technique
Absciss layer generates load action to anchor pole, to determine the absciss layer stress pattern of the body of rod and destruction in development process
Rule, Ying Jinhang experimental test, however on-the-spot test difficulty is larger, is difficult to determine that the position of absciss layer and absciss layer value are big first
Small, secondly host rock environment is complicated, and influence factor is excessive, and test discreteness is larger.Laboratory test is as a kind of effective research hand
Section, can be with the correctness and applicability of proof theory model.The key point of test is reserved absciss layer, and test block is separated, this hair
It is bright to set about from the test block shape of design, test block is reinforced, will be loaded using jack and separate test block, and displacement prison is set
Examining system, stress monitoring system constitute integrity test.
Summary of the invention
A kind of the object of the present invention is to provide structures simple, easy to operate, test data high reliablity research absciss layer pair
The experimental rig and production method of bolt action load.
The technical scheme is that a kind of experimental rig of research absciss layer of the invention to bolt action load, described
Experimental rig includes the test block of " I " fonts, and the horizontal symmetrical face of the test block is equipped with reserving gaps, " I " fonts test block
The anchor pole for posting foil gauge is set in vertical section, the both ends of the anchor pole extend respectively to the two sides up and down of test block；
One groove of each formation in the left and right of the " I " fonts test block, the groove is interior to have the first amesdial for placing
Hydraulic jack, the front and rear sides of the test block are equipped with reinforcing steelframe, and the reinforcing steelframe is set along the corner location of groove
It sets, upper and lower surface is equipped with strengthening steel slab in the groove；
Displacement measurement system is additionally provided in the test block.
Preferably, the angle between the anchor pole and reserving gaps is 60 ° or 90 °.
Preferably, described to reinforce what steelframe was welded by steel plate and angle steel.
Preferably, the strengthening steel slab is in concave, and extends to the front and rear sides of anchor pole.
Preferably, there are three the anchor pole is set, the corresponding intermediate anchor pole of the second amesdial of the displacement measurement system is set
It sets.
Preferably, any anchor pole is equipped with 6 foil gauges, wherein 3 are located at the top of reserving gaps, 3 positioned at reserved
The bottom end in gap.
Preferably, the displacement measurement system includes the second amesdial there are two test block front side is set, two the second amesdials
The two sides up and down of reserving gaps are fixed on by fixing steel plate.
Another aspect of the present invention further includes a kind of research absciss layer to the production side of the experimental rig of bolt action load
Method comprising following steps:
(1) Mold Making: corresponding mold is made according to the test block of " I " fonts, mold uses plank sheathing, mold bottom
Cystosepiment is set, pvc pipe is inserted at bottom foam plate design position, reserved drilling is that subsequent slip casting anchoring is ready；
(2) concrete sample make: by the mold of concreting in lifts to step (1) production, pouring and be divided into two parts,
Bottom pours to reserving gaps position and stops hour, spreads one layer of plastic paper, then pours upside, and test block pulls out pvc pipe after reaching initial set
Out, after test block hardening demoulding, row is conserved when being sent to temperature standard fog room；
The reinforcing steelframe being welded into using steel plate and angle steel carries out local stiffening to jack load position；
(3) anchor pole pastes foil gauge: the position for needing to paste foil gauge on reinforcing bar being polished smooth, foil gauge is posted, uses epoxy
Resin does water-proofing treatment；
(4) Anchor Agent makes: production Anchor Agent can be directly circulated into drilling, then test anchor pole is inserted into, and wait anchoring
Agent solidification, the anchor pole for posting foil gauge are fixed on inside the test block of " I " fonts；
(5) displacement measurement system is arranged: the second amesdial for testing displacement is fixed in test block by fixing steel plate, is reserved
Two sides respectively install one up and down in gap, survey the sum of the displacement of two the second amesdials, and the displacement at the anchor pole of two sides then passes through clearance gauge
It measures, is finally averaged and carries out data analysis.
The advantages and positive effects of the present invention are:
1, rock material is using self-control concrete test block simulation, to separate test block, needs to load test block, load is selected
Jack opens test block, convenient for load, and test block is made into " I-shaped ".
2, anchor pole additional stress field rule caused by absciss layer can be monitored by pasting foil gauge on anchor pole；Can study from
The loading process and failure law of layer effect lower bolt can be studied under 2 kinds of different operating conditions, and the stress distribution of anchor pole: one is anchors
Bar is vertical with absciss layer, and one is anchor pole and absciss layers at an angle, and research anchor pole tension, tension cut the stress of 2 kinds of different situations
Distribution and failure law.
3, by record load and fracture open magnitude, obtain the relationship of absciss layer value size and anchor axial force, and with theory
The relation curve of model compares.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of experimental rig of the present invention (anchor pole and reserving gaps are in 90 ° of angles).
Fig. 2 is the structural schematic diagram of experimental rig of the present invention (anchor pole and reserving gaps are in 60 ° of angles).
Fig. 3 is the setting structure schematic diagram of strengthening steel slab.
Fig. 4 is the front view of experimental rig of the present invention (anchor pole and reserving gaps are in 90 ° of angles).
Fig. 5 is the front view of experimental rig of the present invention (anchor pole and reserving gaps are in 60 ° of angles).
Fig. 6 is mold structure diagram.
Fig. 7 is the attachment structure schematic diagram of anchor pole and foil gauge.
Fig. 8 is the structural schematic diagram of test block.
Fig. 9 is the assembling structure schematic diagram (omit hydraulic jack, reinforce steelframe, strengthening steel slab) of the second amesdial
In figure:
1- test block, 2- reserving gaps, 3- anchor pole, 4- groove, 5- hydraulic jack, the first amesdial of 6-, 7- backing plate, 8-
Two amesdials, 9- reinforce steelframe, 10- strengthening steel slab, 11- mold, 12- cystosepiment, 13-PVC pipe, 14- foil gauge, 15- positioning
Steel plate.
Specific embodiment
It elaborates with reference to the accompanying drawing to the present invention.
As shown in Figs. 1-5, the experimental rig of a kind of research absciss layer of the invention to bolt action load, the experimental rig
Test block 1 including " I " fonts, the bottom end of test block 1 is equipped with backing plate 7, sets the anchor pole 3 for posting foil gauge in the test block 1, described
The middle position of test block 1 is equipped with horizontal-extending reserving gaps 2, and the left and right groove 4 of the test block has the 1000th for placing
Divide the hydraulic jack 5 of table 6, the front and rear sides of the test block 1 are equipped with the reinforcing steelframe 9 that steel plate and angle steel are welded into, described to add
Gu steelframe 9 is arranged along the corner location of groove, the upper and lower ends of the groove are equipped with the strengthening steel slab 10 of concave.
Angle between the anchor pole and reserving gaps is 90 ° or 60 °.
A kind of production method of research absciss layer of the invention to the experimental rig of bolt action load, comprising the following steps:
(1) Mold Making
As shown in fig. 6, mold uses plank sheathing, wooden model version according to the production corresponding mold 11 of the test block of " I " fonts
Have the advantage that plate face is flat and smooth, can saw, can bore, convenient for disassembly and assembly, easy to operate, manufacturing speed is fast, be convenient in demoulding and at
This is low.According to the given size of Fig. 3, mold is made.For convenience of anchor pole position is determined, cystosepiment 12 is arranged in mold bottom, in bottom
Pvc pipe 13 is inserted at cystosepiment design position, the height of pvc pipe is higher than the height of the test block of " I " fonts, after reserved drilling is
Continuous slip casting anchoring is ready.
(2) concrete sample make
Concrete grade is C30, requires (water: cement: sand: stone=0.38: 1: 1.11: 2.72) according to mix-design
Weighing, the cement weighed up and sand are added water and stirred, stone is finally added and is sufficiently stirred.By concreting in lifts to step
(1) it in the mold made, pours and is divided into two parts, bottom is poured to reserving gaps position and stopped 2 hours, spreads one layer of plastic paper, then pour
Build upside.Test block extracts pvc pipe after reaching initial set, after demoulding is hardened in test block, should be sent to 20 ± 3 DEG C of temperature in time, humidity is
Row conserves when 90% or more standard curing room, and the test block conserved is as shown in Figure 8.
Concrete also known as artificial stone, property are similar to rock, are fragile material, resistance to compression but non-tension, not shearing resistance, therefore right
It also needs to be reinforced outside test block, the reinforcing steelframe being welded by steel plate and angle steel loads position to jack and carries out local add
Gu the test block after reinforcing is as illustrated in figures 4-5.
(3) anchor pole pastes foil gauge
As shown in fig. 7, the position for needing to paste foil gauge 14 on reinforcing bar is polished smooth, the area at smooth place be 5mm ×
10mm.Foil gauge 14 is posted on the spiral of length 60cm, does water-proofing treatment with epoxy resin.Foil strain gauge size is
2mm × 3mm, every is pasted 6, and upper and lower two sides respectively paste 3, so that there is 3 foil gauges to be located in reserving gaps on every anchor pole
Side, 3 foil gauges are located at the downside of reserving gaps.
(4) Anchor Agent makes
It uses G type bar planting material as fixing agent for anchor poles according to ancillary test determination, G moulding mixture is mixed with water according to a certain percentage
With, which can directly be circulated into drilling, then will test anchor pole insertion, wait Anchor Agent solidification, post foil gauge
Anchor pole i.e. be fixed on inside the test block of " I " fonts.
(5) displacement measurement system is arranged
As shown in figure 9, the second amesdial 8 of test displacement is arranged at intermediate anchor pole position, the nail positioning steel in test block 1
Second amesdial 8 is mounted on and is fixed on fixing steel plate 15 by plate 15, and two sides respectively install one to reserving gaps up and down, surveys two
The sum of the displacement of second amesdial 8.Displacement at the anchor pole of two sides is then measured by clearance gauge, is finally averaged and is carried out data point
Analysis.
One embodiment of the present invention has been described in detail above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should still be within the scope of the patent of the present invention.
Claims (7)
1. a kind of research absciss layer is to the experimental rig of bolt action load, it is characterised in that: the experimental rig includes " work " word
The test block of type, the horizontal symmetrical face of the test block are equipped with reserving gaps, set in the vertical section of " I " fonts test block and post strain
The anchor pole of piece, the both ends of the anchor pole extend respectively to the two sides up and down of test block；
One groove of each formation in the left and right of the " I " fonts test block, the groove are used to place hydraulic with the first amesdial
Jack, the front and rear sides of the test block are equipped with reinforcing steelframe, and the steelframe of reinforcing is arranged along the corner location of groove, described
Upper and lower surface is equipped with strengthening steel slab in groove；
Displacement measurement system is additionally provided in the test block；
There are three the anchor pole is set, the corresponding intermediate anchor pole setting of the second amesdial of the displacement measurement system.
2. a kind of research absciss layer according to claim 1 is to the experimental rig of bolt action load, it is characterised in that: described
60 ° or 90 ° of angle between anchor pole and reserving gaps.
3. a kind of research absciss layer according to claim 1 is to the experimental rig of bolt action load, it is characterised in that: described
Reinforce what steelframe was welded by steel plate and angle steel.
4. a kind of research absciss layer according to claim 1 is to the experimental rig of bolt action load, it is characterised in that: described
Strengthening steel slab is in concave, and extends to the front and rear sides of anchor pole.
5. a kind of research absciss layer according to claim 1 is to the experimental rig of bolt action load, it is characterised in that: any
Anchor pole is equipped with 6 foil gauges, wherein 3 are located at the top of reserving gaps, 3 are located at the bottom end of reserving gaps.
6. a kind of research absciss layer according to claim 1 is to the experimental rig of bolt action load, it is characterised in that: described
Displacement measurement system includes two the second amesdials being arranged on front side of test block, and two the second amesdials are fixed on by fixing steel plate
The two sides up and down of reserving gaps.
7. one kind studies absciss layer to the production method of the experimental rig of bolt action load as described in claim 1, including with
Lower step:
(1) Mold Making: corresponding mold is made according to the test block of " I " fonts, mold uses plank sheathing, mold bottom setting
Cystosepiment is inserted into pvc pipe at bottom foam plate design position, and reserved drilling is that subsequent slip casting anchoring is ready,
(2) concrete sample make: by the mold of concreting in lifts to step (1) production, pouring and be divided into two parts, bottom
It pours to reserving gaps position and stops 2 hours, spread one layer of plastic paper, then pour upside, test block extracts pvc pipe after reaching initial set,
After demoulding is hardened in test block, it is sent to temperature standard fog room and is conserved；
The reinforcing steelframe being welded into using steel plate and angle steel carries out local stiffening to jack load position；
(3) anchor pole pastes foil gauge: the position for needing to paste foil gauge on reinforcing bar being polished smooth, foil gauge is posted, uses epoxy resin
Do water-proofing treatment；
(4) Anchor Agent makes: production Anchor Agent is directly circulated into drilling, then test anchor pole is inserted into, and waits Anchor Agent solidifying
Gu the anchor pole for posting foil gauge is fixed on inside the test block of " I " fonts；
(5) displacement measurement system is arranged: the second amesdial for testing displacement is fixed in test block by fixing steel plate, reserving gaps
Upper and lower two sides respectively install one, survey the sum of the displacement of two the second amesdials, and the displacement at the anchor pole of two sides is then measured by clearance gauge,
It is finally averaged and carries out data analysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610534274.8A CN106442121B (en) | 2016-06-29 | 2016-06-29 | A kind of research absciss layer is to the experimental rig and production method of bolt action load |
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|---|---|---|---|
| CN201610534274.8A CN106442121B (en) | 2016-06-29 | 2016-06-29 | A kind of research absciss layer is to the experimental rig and production method of bolt action load |
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| Publication Number | Publication Date |
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| CN106442121A CN106442121A (en) | 2017-02-22 |
| CN106442121B true CN106442121B (en) | 2019-07-19 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053214A (en) * | 2016-07-28 | 2016-10-26 | 西安工业大学 | Testing apparatus for research of imposed load of bed separation to anchor pole and manufacturing method |
| CN107607380B (en) * | 2017-11-15 | 2023-08-25 | 华侨大学 | Manufacturing die for multi-angle interlayer-containing rock mass reinforcement test |
| CN110274818A (en) * | 2019-06-12 | 2019-09-24 | 东南大学 | A kind of cable-supported bridge fire causes the combination test apparatus of disconnected rope |
| CN113933174B (en) * | 2021-09-16 | 2024-09-20 | 青岛理工大学 | Method and system for testing interface stress of full-length anchoring anchor rod under influence of rock separation layer deformation |
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| CN1773241A (en) * | 2004-11-11 | 2006-05-17 | 香港理工大学 | Testing box for measuring anti-pulling force of soil nailing mechanical property |
| CN102175518A (en) * | 2011-02-22 | 2011-09-07 | 河海大学 | Method for testing flexural tensile strength of pavement concrete under complete road surface |
| CN203083879U (en) * | 2013-02-26 | 2013-07-24 | 长安大学 | Soil anchor strain testing system |
| CN203287250U (en) * | 2013-05-09 | 2013-11-13 | 深圳市工勘岩土工程有限公司 | Tensile test device for sock-soil |
| CN203414351U (en) * | 2013-09-09 | 2014-01-29 | 长沙学院 | Prestrain reinforced experimental device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001303583A (en) * | 2000-04-25 | 2001-10-31 | Sanei Shoji Kk | Foundation structure for building and its execution method |
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- 2016-06-29 CN CN201610534274.8A patent/CN106442121B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN1773241A (en) * | 2004-11-11 | 2006-05-17 | 香港理工大学 | Testing box for measuring anti-pulling force of soil nailing mechanical property |
| CN102175518A (en) * | 2011-02-22 | 2011-09-07 | 河海大学 | Method for testing flexural tensile strength of pavement concrete under complete road surface |
| CN203083879U (en) * | 2013-02-26 | 2013-07-24 | 长安大学 | Soil anchor strain testing system |
| CN203287250U (en) * | 2013-05-09 | 2013-11-13 | 深圳市工勘岩土工程有限公司 | Tensile test device for sock-soil |
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