CN209640340U - A kind of imitative experimental appliance for studying ground disintegration - Google Patents

A kind of imitative experimental appliance for studying ground disintegration Download PDF

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Publication number
CN209640340U
CN209640340U CN201920058710.8U CN201920058710U CN209640340U CN 209640340 U CN209640340 U CN 209640340U CN 201920058710 U CN201920058710 U CN 201920058710U CN 209640340 U CN209640340 U CN 209640340U
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China
Prior art keywords
vertical bar
ground
support frame
mesh screen
imitative experimental
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Expired - Fee Related
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CN201920058710.8U
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Chinese (zh)
Inventor
李智
简文星
宋治
杨光辉
田朋飞
李林均
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China University of Geosciences
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China University of Geosciences
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Abstract

The utility model provides a kind of imitative experimental appliance for studying ground disintegration, including support system, hang mesh screen system and Weighing system, the support system includes tripod, support plate and cross bar, the support plate is arranged on tripod, the center of the support plate opens up the first aperture, the cross bar is erected at the top of the first aperture, the suspension mesh screen system is connected to the lower section of cross bar, ground sample is placed in the suspension mesh screen system, the Weighing system is located at the lower section of suspension mesh screen system, the Weighing system includes hoistable platform, electronic balance and sink, the hoistable platform, electronic balance and sink are sequentially placed from bottom to top, water is placed in the sink, the hoistable platform band dynamic water tank rising is immersed in the water ground sample, it is disintegrated after the ground sample contacts water, the electronic balance weighing sink The quality of different moments in the disintegration of ground sample, and then obtain the slaking index of ground sample.The utility model structure is simple.

Description

A kind of imitative experimental appliance for studying ground disintegration
Technical field
The utility model relates to geo-technology field more particularly to a kind of imitative experimental appliances for studying ground disintegration.
Background technique
The disintegration of ground refer to rock or soil due to immersion and there is a phenomenon where being crushed, granular media.It is disintegrated Producing reason It is the case where water enters hole or crack imbalance, the speed for causing intergranular diffusion layer to thicken after being submerged in water due to Rock And Soil Degree is also uneven, so that intergranular repulsion is more than suction, generates stress and concentrates, and Rock And Soil is more than that the maximum face of suction collapses along repulsion It falls.By taking granite residual soil as an example, in the urbanization process that China increasingly accelerates, many areas especially southeastern coast Area will use granite residual soil as the essential bearing stratum of building, excavation of foundation pit, artificial earth fill's side slope etc..In natural shape Under state, granite residual soil has higher intensity, laboratory test show granite residual soil have biggish shearing strength, compared with The small compressed coefficient and lesser impervious coefficient.But granite residual soil has the spy that void ratio is big, meets water softening, disintegration Property.Just because of this engineering characteristic, in the engineering practice that granite residual soil area carries out, as caused by terms of ground Geotechnical engineering problems happen occasionally.Although one of the reason of heavy rain is induced landslide, the disintegration of granite residual soil itself Softening properties are the major endogeneous that the natural side slope of granite residual soil, welding with filler wire come down.Solve granite residual soil Side slope safety problem it is necessary to fundamentally understanding the granite residual soil disintegration.Therefore, the disintegration weight of ground is studied It wants and urgent.
Summary of the invention
In view of this, the present invention provides a kind of imitative experimental appliance for studying ground disintegration, the simulated experiments Apparatus structure is simple, easy to operate, being capable of preferable simulation ground disintegrating procedue.
The utility model provides a kind of imitative experimental appliance for studying ground disintegration, including support system, suspension mesh screen System and Weighing system, the support system include tripod, support plate and cross bar, and the support plate is arranged on tripod, The center of the support plate opens up the first aperture, and the cross bar is erected at the top of the first aperture, and the suspension mesh screen system connects It connects and places ground sample in the lower section of cross bar, the suspension mesh screen system, the Weighing system is located at suspension mesh screen system Lower section, the Weighing system include hoistable platform, electronic balance and sink, and the hoistable platform, electronic balance and sink are under It is sequentially placed on and, water is placed in the sink, the hoistable platform band dynamic water tank rising is immersed in the water ground sample, described It is disintegrated after ground sample contacts water, the matter of different moments of the electronic balance weighing sink when ground sample is disintegrated Amount, and then obtain the slaking index of ground sample.
Further, the suspension mesh screen system includes metallic sieve and cylinder, and the top and bottom of the cylinder are spacious Mouthful, the metallic sieve is connected to the lower end of cylinder, and ground sample is placed in the top of the metallic sieve, and the cylinder is suspended on The lower section of cross bar.
Further, the suspension mesh screen system further includes splicer, and the splicer is connected to the top of cylinder, described First vertical bar, the second vertical bar, third vertical bar be set between cylinder and splicer, the upper end of first vertical bar, the second vertical bar Upper end and the upper end of third vertical bar are connected on splicer, the lower end of first vertical bar, the lower end of the second vertical bar and The lower end of three vertical bars is connected to the upper end of cylinder, and the 4th vertical bar, and the 4th vertical bar are inserted into the center of the splicer It can be rotated in splicer, the upper end of the 4th vertical bar is connect with cross bar.
Further, the upper end of the 4th vertical bar is in hook solid, hangs hook, one end of the hook on the cross bar It is suspended on the centre of cross bar, the other end of the hook hooks the upper end of the 4th vertical bar.
Further, the center of the splicer opens up second orifice, and the 4th vertical bar is inserted into second orifice, described The diameter of 4th vertical bar is less than the diameter of second orifice.
Further, the lower end of the 4th vertical bar opens up bolt hole, is inserted into bolt, the bolt quilt in the bolt hole Nut fastening engaged therewith.
Further, the two sides of the metallic sieve respectively hang a counterweight, and two counterweights are equal in weight.Further Ground, the tripod include the first support frame, the second support frame and third support frame, and second support frame is located at the first support Between frame and third support frame, a fixing clamp is installed respectively, by described solid on first support frame and third support frame Support plate is fixed on tripod by clamp.
Further, the fixing clamp includes the first clamping part and the second clamping part, and first clamping part clamps first Support frame and third support frame, second clamping part clamp support plate.
Further, the shape of the support plate is circle.
Technical solution provided by the utility model has the benefit that imitative experimental appliance provided by the utility model Structure is simple, easy to operate, can preferable simulation ground disintegrating procedue, can be convenient using device provided by the utility model Ground obtains the slaking index of ground;The tripod and support plate of imitative experimental appliance provided by the utility model are solid and reliable, really Protecting suspension mesh screen system can firmly hang in the sky;Imitative experimental appliance provided by the utility model passes through in metallic sieve Side-by-side mounting counterweight can guarantee to hang mesh screen system balance and stability in the shortest time, and can guarantee metallic sieve and cylinder Body remains equilibrium state after entering water;Imitative experimental appliance provided by the utility model can pass through rotation in the later period of disintegration Adapter makes ground sample sufficiently sieve, be disintegrated, and effectively reduces because experiment later period residuals are in the stagnant of metallic sieve node Error caused by staying.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for the imitative experimental appliance for studying ground disintegration of the utility model.
Fig. 2 is that a kind of structure of the suspension mesh screen system for the imitative experimental appliance for studying ground disintegration of the utility model is shown It is intended to.
Fig. 3 is a kind of signal of the metallic sieve rotation of imitative experimental appliance for studying ground disintegration of the utility model Figure.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer Type embodiment is further described.
Fig. 1 and Fig. 2 are please referred to, the embodiments of the present invention provide a kind of simulated experiment dress for studying ground disintegration It sets, including support system 1, suspension mesh screen system 2 and Weighing system 3, Weighing system 3 are located at the lower section of suspension mesh screen system 2.
Support system 1 includes tripod 11, support plate 12 and cross bar 13, and tripod 11 includes the first support frame 111, second The height of support frame 112 and third support frame 113, the first support frame 111, the second support frame 112 and third support frame 113 can It adjusts, the second support frame 112 is between the first support frame 111 and third support frame 113, the first support frame 111 and third branch 113 install a fixing clamp 14 respectively on support, and two fixing clamps 14 are in same level, and fixing clamp 14 includes the first folder Portion 141 and the second clamping part 142 are held, the first clamping part 141 clamps the first support frame 111 and third support frame 113, the second clamping Support plate 12 is clamped in portion 142, and holding support plate 12 is horizontal steady state, and the second clamping part 142 can be around the first clamping part 141 360 ° of rotations, the first clamping part 141 are fastened by fastening bolt, and the center of support plate 12 opens up the first aperture 121,13 frame of cross bar It is located at the top of the first aperture 121 and is fixed by adhesive tape, suspension hook 15 on cross bar 13, the one end for linking up with 15 is suspended on cross bar 13 centre, the other end for linking up with 15 pass through the first aperture 121 connection suspension mesh screen system 2;In one embodiment, tripod 11 is selected With carbon fiber camera trivets, hook 15 is linked up with for S type, and fixing clamp 14 selects multi-functional mobile phone that bracket is broadcast live, support plate 12 Shape is circle, and the length of cross bar 13 is greater than the diameter of the first aperture 121.
Hang mesh screen system 2 include cylinder 21 open up and down, the first vertical bar 22, the second vertical bar 23, third vertical bar 24, 4th vertical bar 25, splicer 26 and metallic sieve 27, the lower end of the first vertical bar 22, the lower end of the second vertical bar 23 and third vertical bar 24 Lower end be respectively welded at the upper end of cylinder 21, the upper end of the first vertical bar 22, the upper end of the second vertical bar 23 and third vertical bar 24 Upper end is respectively welded on splicer 26, and the center of splicer 26 opens up second orifice 261, and the lower end of the 4th vertical bar 25 passes through the Two apertures 261, the lower end of the 4th vertical bar 25 open up bolt hole 251, and bolt 252 is inserted into bolt hole 251, using with bolt 252 The nut 253 of cooperation fastens bolt 252, then position of the 4th vertical bar 25 on splicer 26 is limited by bolt 252, and the 4th The diameter that the diameter of vertical bar 25 is less than second orifice 261 rotate the 4th vertical bar 25 can in splicer 26, the 4th vertical bar 25 Upper end be in hook solid, the upper end of the 4th vertical bar 25 hook hook 15 the other end, the lower end of the first vertical bar 22, the second vertical bar 23 lower end and the lower end of third vertical bar 24 surround triangle, and metallic sieve 27 is welded on the lower end of cylinder 21, metallic sieve 27 Upper placement ground sample, the two sides of metallic sieve 27 respectively hang a counterweight 28, and two counterweights 28 are equal in weight, an embodiment In, the first vertical bar 22, the second vertical bar 23, third vertical bar 24 and the 4th vertical bar 25 are all made of rigid material and are made, splicer 26 Shape is cylinder.
Weighing system 3 includes hoistable platform 31, electronic balance 32, pallet 33 and the sink 34 being sequentially placed from bottom to top, Hoistable platform 31 is used to that electronic balance 32 and sink 34 is driven to rise or fall, and water is placed in sink 34, flat by increasing lifting Platform 31 immerses ground sample in the water of sink 34, and ground sample is disintegrated after being immersed in the water, and ground sample is in disintegrating procedue In, electronic balance 32 weighs quality of the sink 34 in different moments, and then obtains the slaking index of ground sample;One embodiment In, hoistable platform 31 selects ultra low type electric lifting platform, and sink 34 is square glass sink, and electronic balance 32 selects high-precision Electronic balance.
When using above-mentioned imitative experimental appliance research ground disintegration, steps are as follows:
Step S1, contrived experiment determine the height of each instrument in experimentation, and the height of tripod 11 is adjusted by preliminary experiment Degree, determines the initial liquid height of sink 34;
Support plate 12 is fixed on the top of tripod 11 by fixing clamp 14 by step S2, then in support plate 12 Centre is placed 13 blend compounds band of cross bar and is fixed, then links up with 15 in the center suspension of cross bar 13, is then suspended on suspension mesh screen system 2 On hook 15, an equiponderant counterweight 28 is respectively hung in the two sides symmetric position of metallic sieve 27, it is ensured that suspension mesh screen System 2 is in stable state;
Step S3 individually carries out test and obtains the empty water-immersed balance reading D' of metallic sieve 27: pallet 33 is put It sets on electronic balance 32, then sink 34 is placed on pallet 33, then be filled to initial liquid height into sink 34, open Dynamic hoistable platform 31 is immersed in the water metallic sieve 27, and reading is recorded after balance reading is stablized, which is empty metallic screen The water-immersed balance reading D' of net 27;
Step S4, the metallic sieve 27 individually carried out when test obtains on-test after placement ground sample are water-immersed Balance reading D0, hold line and ground sample be slowly immersed in shortly past in the wax of fusing point (50 DEG C), by ground sample after all submergences It proposes, checks that the cere for being coated in ground sample surrounding with the presence of bubble-free, in the presence of having bubble, can be punctured, then use with hot needle The ground sample sealed with wax is placed in the center of metallic sieve 27 after cooling by wax liquor filling-in, starts hoistable platform 31, will be golden Belong to sieve 27 and ground sample is immersed in the water, the reading of electronic balance is recorded after stablizing, which is after placing ground sample The water-immersed balance reading D of metallic sieve 270;The water-immersed balance reading of metallic sieve 27 after placing ground sample D0Originally it does not need individually to obtain, it is contemplated that ground sample is once entering fater disintegration in water in practical operation, the balance recorded at this time Read-around ratio actual conditions are small, therefore exclude error using wax coating method;
Step S5 is weighed the weight m of the ground sample before immersion using electronic balance 32, ground sample is then placed in gold Belong to the center of sieve 27, starts hoistable platform 31, be at the uniform velocity immersed in the water metallic sieve 31 and ground sample, it is fast to minimize Effect of the flowing pressure to ground sample when speed immerses, opens stopwatch, on-test t moment, that is, 10s, 20s, 30s, 40s, The reading D of 50s, 60s, 70s, 80s, 90s, 120s, 150s, 180s recording balancet, according to the speed of disintegration, can fit When shortening or extend time interval;
In actual operation, in the final stage of ground sample disintegration, some ground sample fritters is often had and are remained in At the node of metallic sieve 27, it is difficult to fall, thus cause the complete disintegration time of ground sample of record longer than actual, at this moment It needs to move metallic sieve 27 by rotation splicer 26, it is ensured that ground sample is sufficiently sieved, is disintegrated, metallic sieve 27 Rotation process refers to Fig. 3, finally according to measured data, can calculate disintegration amount (disintegration rate), the disintegration of ground sample The slaking indexes such as rate, disintegration stabilization sub stage Mean Speed, such as the calculating of the accumulation disintegration amount (disintegration rate) of different moments soil sample Formula is
Imitative experimental appliance structure provided by the utility model is simple, easy to operate, being capable of preferably simulation ground disintegration Process obtains the slaking index of ground using device provided by the utility model in which can be convenient;Mould provided by the utility model The tripod 11 and support plate 12 of draft experiment device are solid and reliable, it is ensured that suspension mesh screen system 2 can firmly be hung in the sky;This The imitative experimental appliance that utility model provides can guarantee to hang mesh screen system by the side-by-side mounting counterweight 28 in metallic sieve 27 2 balance and stability in the shortest time of system, and can guarantee to remain equilibrium state after metallic sieve 27 and cylinder 21 enter water;This Utility model provide imitative experimental appliance disintegration later period can by rotate adapter 26 so that ground sample is sufficiently sieved, Disintegration is effectively reduced because testing later period residuals error caused by the delay of 27 node of metallic sieve.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (10)

1. it is a kind of study ground disintegration imitative experimental appliance, which is characterized in that including support system, suspension mesh screen system and Weighing system, the support system include tripod, support plate and cross bar, and the support plate is arranged on tripod, the branch The center of fagging opens up the first aperture, and the cross bar is erected at the top of the first aperture, and the suspension mesh screen system is connected to cross The lower section of bar, the suspension mesh screen system is interior to place ground sample, and the Weighing system is located at the lower section of suspension mesh screen system, institute Stating Weighing system includes hoistable platform, electronic balance and sink, and the hoistable platform, electronic balance and sink are from bottom to top successively It places, water is placed in the sink, the hoistable platform band dynamic water tank rising is immersed in the water ground sample, the ground sample It is disintegrated after contact water, the quality of different moments of the electronic balance weighing sink when ground sample is disintegrated, and then To the slaking index of ground sample.
2. the imitative experimental appliance of research ground disintegration according to claim 1, which is characterized in that the suspension mesh screen System includes metallic sieve and cylinder, and the top and bottom of the cylinder are open, and the metallic sieve is connected under cylinder Ground sample is placed in the top at end, the metallic sieve, and the cylinder is suspended on the lower section of cross bar.
3. the imitative experimental appliance of research ground disintegration according to claim 2, which is characterized in that the suspension mesh screen System further includes splicer, and the splicer is connected to the top of cylinder, be arranged between the cylinder and splicer the first vertical bar, The upper end of second vertical bar, third vertical bar, the upper end of first vertical bar, the upper end of the second vertical bar and third vertical bar is connected to On splicer, the lower end of the lower end of first vertical bar, the lower end of the second vertical bar and third vertical bar is connected to the upper of cylinder The 4th vertical bar is inserted at the center at end, the splicer, and the 4th vertical bar can rotate in splicer, the 4th vertical bar Upper end is connect with cross bar.
4. the imitative experimental appliance of research ground disintegration according to claim 3, which is characterized in that the 4th vertical bar Upper end be in hook solid, hang hook on the cross bar, one end of the hook is suspended on the centre of cross bar, the hook it is another Hook the upper end of the 4th vertical bar in one end.
5. the imitative experimental appliance of research ground disintegration according to claim 3, which is characterized in that the splicer Center opens up second orifice, and the 4th vertical bar is inserted into second orifice, and the diameter of the 4th vertical bar is less than second orifice Diameter.
6. the imitative experimental appliance of research ground disintegration according to claim 3, which is characterized in that the 4th vertical bar Lower end open up bolt hole, bolt is inserted into the bolt hole, the bolt is fastened by nut engaged therewith.
7. the imitative experimental appliance of research ground disintegration according to claim 2, which is characterized in that the metallic sieve Two sides respectively hang a counterweight, two counterweights are equal in weight.
8. the imitative experimental appliance of research ground disintegration according to claim 1, which is characterized in that the tripod packet The first support frame, the second support frame and third support frame are included, second support frame is located at the first support frame and third support frame Between, a fixing clamp is installed respectively on first support frame and third support frame, is consolidated support plate by the fixing clamp It is scheduled on tripod.
9. the imitative experimental appliance of research ground disintegration according to claim 8, which is characterized in that the fixed clip pack The first clamping part and the second clamping part are included, first clamping part clamps the first support frame and third support frame, second folder Clamp support plate in the portion of holding.
10. the imitative experimental appliance of research ground disintegration according to claim 1, which is characterized in that the support plate Shape be circle.
CN201920058710.8U 2019-01-15 2019-01-15 A kind of imitative experimental appliance for studying ground disintegration Expired - Fee Related CN209640340U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109490514A (en) * 2019-01-15 2019-03-19 中国地质大学(武汉) A kind of imitative experimental appliance for studying ground disintegration
CN111610111A (en) * 2020-06-23 2020-09-01 中航勘察设计研究院有限公司 Soil mass disintegration test method under simulated hail condition
CN112147182A (en) * 2020-08-31 2020-12-29 广西北投交通养护科技集团有限公司 Method for determining disintegration characteristics of carbonaceous rock based on porous medium heat transfer indexes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109490514A (en) * 2019-01-15 2019-03-19 中国地质大学(武汉) A kind of imitative experimental appliance for studying ground disintegration
CN111610111A (en) * 2020-06-23 2020-09-01 中航勘察设计研究院有限公司 Soil mass disintegration test method under simulated hail condition
CN111610111B (en) * 2020-06-23 2023-03-10 中航勘察设计研究院有限公司 Soil mass disintegration test method under simulated hail condition
CN112147182A (en) * 2020-08-31 2020-12-29 广西北投交通养护科技集团有限公司 Method for determining disintegration characteristics of carbonaceous rock based on porous medium heat transfer indexes
CN112147182B (en) * 2020-08-31 2021-03-23 广西北投交通养护科技集团有限公司 Method for determining disintegration characteristics of carbonaceous rock based on porous medium heat transfer indexes

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Granted publication date: 20191115

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