CN107702939A - A kind of large-scale intact loess model takes Preparation Method - Google Patents
A kind of large-scale intact loess model takes Preparation Method Download PDFInfo
- Publication number
- CN107702939A CN107702939A CN201710942172.4A CN201710942172A CN107702939A CN 107702939 A CN107702939 A CN 107702939A CN 201710942172 A CN201710942172 A CN 201710942172A CN 107702939 A CN107702939 A CN 107702939A
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- model
- soil
- cushion cap
- steel plate
- steel
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- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 239000002689 soil Substances 0.000 claims abstract description 49
- 239000000725 suspension Substances 0.000 claims abstract description 17
- 239000002984 plastic foam Substances 0.000 claims abstract description 5
- 230000001141 propulsive effect Effects 0.000 claims abstract description 5
- 230000001737 promoting effect Effects 0.000 claims abstract description 4
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
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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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of large-scale intact loess model to take Preparation Method, soil model is processed, is fixed with plastic foam plate, bottom reserves certain distance, model casing is enclosed on soil model, behind model casing with behind soil model between gap loess fill and be compacted；It is close to model casing both sides and places rail, steel plate cushion cap is placed on rail, and steel plate cushion cap forward edge is provided with raised propulsive element, the riser of both sides is stuck on rail, and soil model bottom is cut with hacksaw, saw while promoting steel plate cushion cap with digging machine so that the soil body is fallen within steel plate cushion cap；The model soil body is lifted to automobile with suspender, by steel wire rope link model case suspension ring after transporting to interior, model casing is transferred from, whole soil model is completely presented.The beneficial effects of the invention are as follows Large Loess sample can be obtained in the case of soil structures are not destroyed, meet requirement of experiment.
Description
Technical field
The invention belongs to Geotechnical Engineering field, is related to a kind of large-scale intact loess model and takes Preparation Method.
Background technology
As a kind of special soils, loess has a weak cementing, low-intensity feature, large-scale intact loess model take it is standby always with
Being all the global problem in Geotechnical Engineering field, by loess characteristic and prior art conditionality, current major institutes's scientific research
Or personnel, to remold soil model to replace, or taking standby less intact loess model, it is also multifarious, mesh to take Preparation Method
It is only capable of taking the intact loess model within a height of 1m × 1m of standby length and width × 1m known to preceding, this present situation greatly constrains loess in rock
The research work of native engineering field.
The content of the invention
It is an object of the invention to provide a kind of large-scale intact loess model to take Preparation Method, solves at present because loess has
There is a weak cementing, low intensive feature, loess sampling sample smaller the problem of can not meeting experiment needs.
A kind of large-scale intact loess model of the present invention takes Preparation Method, and step is as follows：
Step 1：The first smooth location in scene, sample soil body both sides and front and rear excavate workspace；
Step 2：Soil model is processed, around and the processing of upper top surface is smooth, and bottom is connected with original soil；
Step 3：The soil model surrounding processed is fixed with plastic foam plate, bottom reserves certain distance, uses adhesive tape
Plastic foam plate is wrapped, model casing is enclosed on soil model, model casing is no top surface and the cuboid of bottom surface, is kept
Be close to before model casing before soil model, behind model casing with behind soil model between gap loess fill and press
It is real；
Step 4：It is close to model casing both sides and places rail, and rail is scheduled on ground with steel nail；
Step 5：Steel plate cushion cap is placed on rail, and steel plate cushion cap is rectangle, and forward edge is provided with raised promotion part
Part, the riser of steel plate cushion cap both sides are stuck on rail, and when propulsive element stress, steel plate cushion cap slides on rail, steel plate cushion cap
Corner be provided with cushion cap suspension ring, cushion cap suspension ring are located at outside riser；Hacksaw includes strip square steel, and strip square steel side is welded with saw
Piece, the both ends of strip square steel are provided with handle；Soil model bottom is cut with hacksaw, is sawed while promoting steel plate to hold with digging machine
Platform so that the soil body is fallen within steel plate cushion cap；
Step 6：The model soil body is lifted to automobile, suspender with suspender and is made up of framework and steel wire rope, steel wire rope one end connects
Connect framework, the cushion cap suspension ring on other end junction steel plate cushion cap, by steel wire rope link model case suspension ring, distancing after transporting to interior
Model casing, whole soil model is set completely to present.
Further, saw blade forward part and square steel angle at 45 °, rear part and square steel are into 135 ° of angles.
Further, the edge width of saw blade is identical with the thickness of steel plate cushion cap.
The beneficial effects of the invention are as follows Large Loess sample can be obtained in the case of soil structures are not destroyed, meet experiment
It is required that.
Brief description of the drawings
Fig. 1 is mold box configuration schematic diagram；
Fig. 2 is the schematic diagram that soil model is placed on steel plate cushion cap；
Fig. 3 is hacksaw structural representation；
Fig. 4 is suspender lifting schematic diagram；
Fig. 5 is steel plate cushion cap insertion model casing bottom schematic view.
In figure, 1. model casings, 2. steel plate cushion caps, 3. rail, 4. hacksaws, 5. suspenders, 101. model casing suspension ring, 201. promote
Part, 202. risers, 203. cushion cap suspension ring, 401. strip square steel, 402. saw blades, 403. handles, 501. frameworks, 502. steel wires
Rope.
Embodiment
With reference to embodiment, the present invention is described in detail.
The present invention rents the first smooth good place of digging machine as shown in Figures 1 to 5, in selected place, in order to construction operation,
Excavate about 0.8 meter of wide workspace, 6~8m of length, 1~2.6m of height in sampling soil body both sides.Soil is processed at the scene of fetching earth
Body Model, around and the processing of upper top surface is smooth, and bottom is connected with original soil.To the soil model surrounding plastics processed
Cystosepiment is fixed, and bottom reserves certain distance, 4~6mm, then plastic foam plate is wrapped with adhesive tape.Model casing 1 is enclosed on soil
On body Model, model casing 1 is no top surface and the cuboid of bottom surface, and the top corner of model casing 1 is provided with model casing suspension ring 101, is protected
Hold model casing 1 above be close to before soil model, model casing 1 below with behind soil model between gap with loess fill simultaneously
Compacting.Loess is filled in order that the reaction force that soil model can be enough to model casing 1 in the progradation of steel plate cushion cap 2, exempts from
It must be cut in the soil model later stage.The top corner of model casing 1 is provided with model casing suspension ring 101.
It is close to the both sides of model casing 1 and is placed in parallel rail 3, and rail 3 is scheduled on ground with steel nail.
Steel plate cushion cap 2 is placed on rail 3, and steel plate cushion cap 2 is rectangle, and forward edge is provided with raised propulsive element
201, the riser 202 of the both sides of steel plate cushion cap 2 is stuck on rail, prevents the deflection when being pushed into of steel plate cushion cap 2.Steel plate cushion cap 2
Corner is provided with cushion cap suspension ring 203, and cushion cap suspension ring 203 are located at outside riser 202；Hacksaw 4 includes strip square steel 401, strip square steel 401
Side is welded with saw blade 402, the forward part of saw blade 402 and 401 angle at 45 ° of square steel, and rear part and square steel 401 are into 135 ° of angles.
The both ends of strip square steel 401 are provided with handle 403；Soil model bottom is cut with hacksaw 4, is sawed while promoting steel plate with digging machine
Cushion cap 2 so that the soil body is fallen within steel plate cushion cap 2.
The model soil body is lifted to automobile, suspender 5 with suspender 5 and is made up of framework 501 and steel wire rope 502, steel wire rope one end
Framework 501 is connected, the cushion cap suspension ring 203 on other end junction steel plate cushion cap 2, steel wire rope 502 is connected into mould after transporting to interior
Molding box suspension ring 101, model casing 1 is transferred from, whole soil model is completely presented.
The method have the advantages that a height of 2m × 1.1m of standby length and width × 1m large-scale intact loess can completely be taken, the process that fetches earth saves
Shi Shengli, save manually, and can at utmost retain soil sample original state, do not destroy soil structures, disclosure satisfy that loess engineering
Research need.
Described above is only the better embodiment to the present invention, not makees any formal limit to the present invention
System, any simple modification that every technical spirit according to the present invention is made to embodiment of above, equivalent variations and modification,
Belong in the range of technical solution of the present invention.
Claims (3)
1. a kind of large-scale intact loess model takes Preparation Method, it is characterised in that follows the steps below：
Step 1：The first smooth location in scene, sample soil body both sides and front and rear excavate workspace；
Step 2：Soil model is processed, around and the processing of upper top surface is smooth, and bottom is connected with original soil；
Step 3：The soil model surrounding processed is fixed with plastic foam plate, bottom reserves certain distance, will be moulded with adhesive tape
Strand foam plate is wrapped, and model casing is enclosed on soil model, and model casing is no top surface and the cuboid of bottom surface, keeps model
Be close to before case before soil model, behind model casing with behind soil model between gap loess fill and be compacted；
Step 4：It is close to model casing both sides and places rail, and rail is scheduled on ground with steel nail；
Step 5：Steel plate cushion cap is placed on rail, and steel plate cushion cap is rectangle, and forward edge is provided with raised propulsive element, steel
The riser of plate cushion cap both sides is stuck on rail, and when propulsive element stress, steel plate cushion cap slides on rail, and the four of steel plate cushion cap
Angle is provided with cushion cap suspension ring, and cushion cap suspension ring are located at outside riser；Hacksaw includes strip square steel, and strip square steel side is welded with saw blade, bar
The both ends of shape square steel are provided with handle；Soil model bottom is cut with hacksaw, is sawed while promoting steel plate cushion cap with digging machine so that
The soil body is fallen within steel plate cushion cap；
Step 6：The model soil body is lifted to automobile, suspender with suspender and is made up of framework and steel wire rope, steel wire rope one end connection frame
Body, the cushion cap suspension ring on other end junction steel plate cushion cap, by steel wire rope link model case suspension ring after transporting to interior, it is transferred from model
Case, whole soil model is set completely to present.
2. take Preparation Method according to a kind of large-scale intact loess model described in claim 1, it is characterised in that：Tell saw blade forward part
With square steel angle at 45 °, rear part and square steel are into 135 ° of angles.
3. take Preparation Method according to a kind of large-scale intact loess model described in claim 1, it is characterised in that：The cutting edge of the saw blade
Width is identical with the thickness of steel plate cushion cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710942172.4A CN107702939B (en) | 2017-10-11 | 2017-10-11 | Large undisturbed loess model preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710942172.4A CN107702939B (en) | 2017-10-11 | 2017-10-11 | Large undisturbed loess model preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107702939A true CN107702939A (en) | 2018-02-16 |
| CN107702939B CN107702939B (en) | 2024-02-20 |
Family
ID=61183571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710942172.4A Active CN107702939B (en) | 2017-10-11 | 2017-10-11 | Large undisturbed loess model preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107702939B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663589A (en) * | 2021-01-13 | 2021-04-16 | 南京工业大学 | Large-size sample sampling device for undisturbed soil at bottom of foundation pit and using method thereof |
| CN113237691A (en) * | 2021-05-08 | 2021-08-10 | 西安建筑科技大学 | Structural undisturbed soil sampling device and sampling method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110076390A (en) * | 2009-12-29 | 2011-07-06 | 거산산업주식회사 | Manufacturing device for yellow soil panel |
| CN202002818U (en) * | 2011-03-25 | 2011-10-05 | 中国科学院桃源农业生态试验站 | Large undisturbed-soil sampling equipment |
| CN204374010U (en) * | 2014-12-25 | 2015-06-03 | 西南交通大学 | A kind of top-loaded system of shaking table lamination shear test soil case |
| CN106978824A (en) * | 2017-03-09 | 2017-07-25 | 大连理工大学 | A kind of soil body preparation device of simulated sea bottom complex slope and preparation method thereof |
-
2017
- 2017-10-11 CN CN201710942172.4A patent/CN107702939B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110076390A (en) * | 2009-12-29 | 2011-07-06 | 거산산업주식회사 | Manufacturing device for yellow soil panel |
| CN202002818U (en) * | 2011-03-25 | 2011-10-05 | 中国科学院桃源农业生态试验站 | Large undisturbed-soil sampling equipment |
| CN204374010U (en) * | 2014-12-25 | 2015-06-03 | 西南交通大学 | A kind of top-loaded system of shaking table lamination shear test soil case |
| CN106978824A (en) * | 2017-03-09 | 2017-07-25 | 大连理工大学 | A kind of soil body preparation device of simulated sea bottom complex slope and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李霞;许成顺;杜修力;: "悬挂式层状多向剪切变形模型箱的研制", 地震工程与工程振动, no. 01, 15 February 2016 (2016-02-15) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663589A (en) * | 2021-01-13 | 2021-04-16 | 南京工业大学 | Large-size sample sampling device for undisturbed soil at bottom of foundation pit and using method thereof |
| CN113237691A (en) * | 2021-05-08 | 2021-08-10 | 西安建筑科技大学 | Structural undisturbed soil sampling device and sampling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107702939B (en) | 2024-02-20 |
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