CN1669970A - Model soil simulating soft soil foundation in Shanghai area - Google Patents
Model soil simulating soft soil foundation in Shanghai area Download PDFInfo
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- CN1669970A CN1669970A CN 200510024199 CN200510024199A CN1669970A CN 1669970 A CN1669970 A CN 1669970A CN 200510024199 CN200510024199 CN 200510024199 CN 200510024199 A CN200510024199 A CN 200510024199A CN 1669970 A CN1669970 A CN 1669970A
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Abstract
Disclosed is a model soil simulating soft soil foundation in Shanghai area whose raw material comprises coal ash 25, red aleurite 215-230, clay 100-123, porcelain clay 40-50, barite powder 71-80, machine oil 52-60, water 130-140.
Description
Technical field
The present invention relates to a kind of test model clay, particularly a kind of artificial model clay of test that is used for simulating soft soil foundation in Shanghai area according to theory of similitude.
Background technology
Because the complicacy of soil itself makes model trial in the research of soil mechanics, development slower.At present, the various countries scholar just at the complicacy of soil, manages to break through this obstacle from various angle.Its objective is the character of wanting by artificial way control soil, make it appropriate ratio between implementation model soil aspect the needs and prototype soil.
Artificial soil generally is meant the mixture of granular solids and on-aqueous liquid.To the artificial soil requirement be:
1. the strength characteristics of soil should be not in time, humidity, variation of temperature and change, that is should have stability on the performance;
2. soil mixture should be able to be represented in a big way soil class and edaphic condition.For example can be easier to realize liquid state and solid-state, or change its strength characteristics, make it approaching with natural soils by fluid control;
3. after disturbance, can restore to the original state soon, i.e. the favorable reproducibility of physicals.
About the development of artificial soil, some external scientific research institutions just carry out the work of this respect as far back as eighties of last century mid-term, and have summed up some principle prescriptions:
1. granulated glass sphere (0.005～0.040 inch of φ) is mixed into artificial soil with the silicide glue, and reduces its intensity by adding fluid; Also granulated glass sphere can be mixed mixture, at this moment nature of friction proportional variation of artificial soil with the variation of sand content in sand;
2. casting model powder is constituted artificial soil (for example desirable machine oil 10～19%) with the machine oil mixture;
3. adopt the mixture of clay, sand, lubricating oil.When lubricating oil adopts spindle oil, because spindle oil has good permanent stability, so the unlikely noticeable change that causes force of cohesion of its concentration;
4. adopt the mixture of clay, sandy soil, ethylene glycol.Advantage is can provide different force of cohesion by the concentration that changes ethylene glycol.But shortcoming is: 1) have water absorbability, thereby change relative moisture of the soil, influence soil property; 2) ethanol is easy to soil consolidation, causes the soil property mutation.In this mixture, increase clay per-cent sliding angle is increased, increase ethylene glycol sliding angle is reduced;
5. in artificial soil, add the density that certain material and binding agent can change artificial soil simultaneously;
In addition, in Japan, once prepared model clay like this: model is mixed according to mass ratio by kaolin, gypsum and water at 1: 0.55: 1 to be made, and earlier kaolin and gypsum is put into big container thorough mixing, then progressively add water, stir with stirrer, pour into then in the model groove, and to use vibrator simultaneously be that cast material is evenly distributed, subsequently, model surface is spread wet cloth, model channel opening portion plastic bag sealing, maintenance 4d.
Meanwhile, some domestic R﹠D institutions of China had also carried out the development work to model clay in the last few years, and obtained corresponding progress, a kind of by a large amount of development test successes as the Changjiang river water conservancy and hydropower academy of sciences structured material chamber is the model clay material of raw material with gypsum, ground barium sulfate, sand and glycerine.It is the experimental study of the foundation structure cast material of agglutinate with the gypsum that Department of Water Conservancy of Tsing-Hua University had also once carried out, its weighting material adopts plumbous oxide, iron powder, ground barium sulfate etc., material adds an amount of ripe starch when mixing and stirring (as prescription is gypsum 1, ground barium sulfate 35, water 6.8, glycerine 0.86, starch 0.136, makes the unit weight 24.0kN/m of the soil body to regulate its consolidation strength
3, ultimate compression strength 0.382MPa, tensile strength 0.053MPa, modulus of deformation 314MPa).Beijing institute of coal section then adopts glue sand (according to a certain percentage), consolidating material (lime carbonate, gypsum) and water, can be used to simulate the prototype soil body after mixing and stirring moulding.
In addition, Zhang Jincai, it is that analog material is simulated the original state rock mass that Guo Xinhe (1995) adopts quartz sand, mica powder, lime carbonate.The old filial piety of University of Fuzhou virtuous (1999) once adopted fine sand, talcum powder, soap powder and water to come the allocation models ground according to certain mixed.The He Chuan of Southwest Jiaotong University, Lee enclose, Yu Caigao (2003) is at the shield machine in Nanjing subway tunnel model, adopt ground barium sulfate, machine oil, flyash, river sand (carefully) and silicon ash, mechanical stirring is even at normal temperatures by certain proportioning, after be used for simulating virgin zone after the extrusion forming.
But the above method has certain limitation, especially is suitable for intensity comparatively speaking than higher soil layer, and is unsuitable for the soft clay area resemble Shanghai.
Summary of the invention
The purpose of this invention is to provide a kind of artificial model clay of test that can be used to simulate soft soil foundation in Shanghai area according to theory of similitude.
The original state clay of model trial of the present invention institute reference is taken from representative the 4th layer of silt clay layer in area, Shanghai, and according to test-results, its density is 1.73g/cm
3, cohesion 21.4kPa, internal friction angle is 10.586 °, unconfined compression strength 31.4kPa.According to the derivation of theory of similitude, require the intensity ratio of similitude C of prototype soil body material and model soil body material
σ, density ratio of similitude C
ρAnd geometricsimilarity compares C
1Must satisfy relational expression: C
σ=C
ρC
ιIf can guarantee that the prototype soil body material is approaching with the density of model soil body material, internal friction angle equates, then the intensity ratio of similitude just equals the geometricsimilarity ratio.
For achieving the above object, the present invention adopts following technical scheme:
A kind of model clay of simulating soft soil foundation in Shanghai area, its raw material that adopts comprises flyash, rouge and powder sand, clay, kaolin, ground barium sulfate, machine oil and water, its parts by weight are respectively,
Coal ash 25,
Rouge and powder sand 215～230,
Clay 100～123,
Kaolin 40～50,
Ground barium sulfate 71～80,
Machine oil 52～60,
Water 130～140.
Wherein, described flyash can adopt common power plant waste flyash; Described clay is for taking from the 4th layer of mud matter soft clay in area, Shanghai;
As a kind of optimal way of the present invention, the order number of described rouge and powder sand is 100 orders.
As another optimal way of the present invention, described kaolinic order number is 800 orders.
As an optimal way more of the present invention, the order number of described ground barium sulfate is 500 orders.
As an optimal way more of the present invention, described machine oil adopts double stroke machine oil.
As an optimal way more of the present invention, in the described model clay, flyash, rouge and powder sand, clay, kaolin, ground barium sulfate, machine oil and water parts by weight are respectively 25,225,119,45,75,56,137.
The preparation method of above-mentioned model clay is, earlier the flyash of oven dry, rouge and powder sand, clay powder are mixed and mix thoroughly, again load weighted kaolin, ground barium sulfate are added, after fully mixing and stirring, adding machine oil also makes it fully to combine with powder, adds the water of doses cleaning at last, after stirring with above-mentioned mix, left standstill again 12 hours, and can get artificial model's soil of stability at last.
The present invention utilizes flyash, clay, rouge and powder sand, kaolin and ground barium sulfate to be starting material, adopts uniform mixing, and the method that stirs with machine oil and water, artificial model's soil of preparation, and operation is simple.The clean tap water that the present invention adopts is a water, and double stroke machine oil is oil phase, has the advantage of safety non-toxic, and alternative strong, simple to operate when mixing and stirring, and does not have complicated last handling process.The present invention can control its density and intensity by regulating parameters such as material category, material proportion, mixing inverse proportion, barite powder materials input, oil-water ratio, satisfying more needs, thereby a series of problems of utilizing analog simulation research technique research soft clay ground characteristic have been solved.
Embodiment
Further specify the present invention below in conjunction with specific embodiment, the example of being lifted below being to be understood that does not comprise all the elements of the present invention just in order to explain the present invention.
Embodiment 1
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225 g mixes and stirs with the dry clay powder 100g that takes from the 4th layer in area, Shanghai, add kaolin 40g, ground barium sulfate 80g again, after mixing and stirring once more, adding 52g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 140g cleaning at last, oil-water ratio is 1: 2.692, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.727g/cm
3, cohesion is 4.25kPa, internal friction angle is 11.145 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ???25 | ??225 | ?100 | ?40 | ??80 | ?52 | ??140 |
Embodiment 2
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 110g that takes from the 4th layer in area, Shanghai, add kaolin 40g, ground barium sulfate 80g again, after mixing and stirring once more, adding 52g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 135g cleaning at last, oil-water ratio is 1: 2.596, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.731g/cm
3, cohesion is 6.166kPa, internal friction angle is 10.564 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ?225 | ?110 | ?40 | ?80 | ?52 | ??135 |
Embodiment 3
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 215g mixes and stirs with the dry clay powder 110g that takes from the 4th layer in area, Shanghai, add kaolin 40g, ground barium sulfate 80g again, after mixing and stirring once more, adding 52g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 130g cleaning at last, oil-water ratio is 1: 2.5, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.748g/cm
3, cohesion is 6.868kPa, internal friction angle is 11.808 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??215 | ?110 | ?40 | ?80 | ?52 | ??130 |
Embodiment 4
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 220g mixes and stirs with the dry clay powder 110g that takes from the 4th layer in area, Shanghai, add kaolin 40g, ground barium sulfate 80g again, after mixing and stirring once more, adding 50g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 131g cleaning at last, oil-water ratio is 1: 2.5, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.738g/cm
3, cohesion is 6.617kPa, internal friction angle is 10.895 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ?107 | ??40 | ?80 | ?56 | ??140 |
Embodiment 5
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 113g that takes from the 4th layer in area, Shanghai, add kaolin 40g, ground barium sulfate 80g again, after mixing and stirring once more, adding 52g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 133g cleaning at last, oil-water ratio is 1: 2.558, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.741g/cm
3, cohesion is 6.467kPa, internal friction angle is 10.897 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ??113 | ?40 | ??80 | ?52 | ??133 |
Embodiment 6
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 117g that takes from the 4th layer in area, Shanghai, add kaolin 40g, ground barium sulfate 80g again, after mixing and stirring once more, adding 52.4g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 136g cleaning at last, oil-water ratio is 1: 2.595, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.738g/cm
3, cohesion is 4.061kPa, internal friction angle is 11.560 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ??117 | ??40 | ?80 | ??52.4 | ??136 |
Embodiment 7
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 115g that takes from the 4th layer in area, Shanghai, add kaolin 40g, ground barium sulfate 80g again, after mixing and stirring once more, adding 55g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 140g cleaning at last, oil-water ratio is 1: 2.545, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.739g/cm
3, cohesion is 5.112kPa, internal friction angle is 10.398 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ??115 | ??40 | ??80 | ??55 | ??140 |
Embodiment 8
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 117g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 75g again, after mixing and stirring once more, adding 54g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 136g cleaning at last, oil-water ratio is 1: 2.519, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.757g/cm
3, cohesion is 5.816kPa, internal friction angle is 10.897 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ?117 | ??45 | ??75 | ??54 | ??136 |
Embodiment 9
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 220g mixes and stirs with the dry clay powder 120g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 80g again, after mixing and stirring once more, adding 55.2g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 135g cleaning at last, oil-water ratio is 1: 2.446, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.748g/cm
3, cohesion is 5.362kPa, internal friction angle is 10.789 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??220 | ??120 | ??45 | ??80 | ??55.2 | ??135 |
Embodiment 10
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 117g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 78g again, after mixing and stirring once more, adding 58g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 136g cleaning at last, oil-water ratio is 1: 2.345, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.757g/cm
3, cohesion is 6.041kPa, internal friction angle is 10.647 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ??117 | ?45 | ??78 | ??58 | ??136 |
Embodiment 11
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 117g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 80g again, after mixing and stirring once more, adding 60g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 136g cleaning at last, oil-water ratio is 1: 2.267, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.743g/cm
3, cohesion is 5.551kPa, internal friction angle is 10.926 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ??117 | ?45 | ??80 | ??60 | ??136 |
Embodiment 12
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 117g that takes from the 4th layer in area, Shanghai, add kaolin 50g, ground barium sulfate 75g again, after mixing and stirring once more, adding 58.2g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 137.4g cleaning at last, oil-water ratio is 1: 2.361, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.744g/cm
3, cohesion is 5.916kPa, internal friction angle is 10.98 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ???25 | ??225 | ??117 | ??50 | ?75 | ??58.2 | ??137.4 |
Embodiment 13
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 230g mixes and stirs with the dry clay powder 117g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 75g again, after mixing and stirring once more, adding 58.2g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 137.5g cleaning at last, oil-water ratio is 1: 2.363, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.753g/cm
3, cohesion is 6.091kPa, internal friction angle is 11.262 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??230 | ??117 | ??45 | ??75 | ??58.2 | ??137.5 |
Embodiment 14
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 123g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 75g again, after mixing and stirring once more, adding 58g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 137g cleaning at last, oil-water ratio is 1: 2.362, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.757g/cm
3, cohesion is 6.167kPa, internal friction angle is 10.397 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ??123 | ??45 | ??75 | ??58 | ??137 |
Embodiment 15
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 223g mixes and stirs with the dry clay powder 117g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 75g again, after mixing and stirring once more, adding 56g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 136g cleaning at last, oil-water ratio is 1: 2.429, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.751g/cm
3, cohesion is 6.167kPa, internal friction angle is 10.730 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ?223 | ?117 | ??45 | ?75 | ?56 | ??136 |
Embodiment 16
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 115g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 75g again, after mixing and stirring once more, adding 56g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 136.7g cleaning at last, oil-water ratio is 1: 2.441, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.748g/cm
3, cohesion is 5.966kPa, internal friction angle is 10.814 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ?225 | ?115 | ?45 | ??75 | ?56 | ??136.7 |
Embodiment 17
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 117g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 77g again, after mixing and stirring once more, adding 56g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 136g cleaning at last, oil-water ratio is 1: 2.429, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.753g/cm
3, cohesion is 6.066kPa, internal friction angle is 10.231 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ??117 | ??45 | ??77 | ??56 | ??136 |
Embodiment 18
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 117g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 73g again, after mixing and stirring once more, adding 58g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 137g cleaning at last, oil-water ratio is 1: 2.362, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.738g/cm
3, cohesion is 5.112kPa, internal friction angle is 10.897 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ??117 | ??45 | ??73 | ??58 | ??137 |
Embodiment 19
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 119g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 75g again, after mixing and stirring once more, adding 56g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 137g cleaning at last, oil-water ratio is 1: 2.446, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.746g/cm
3, cohesion is 6.046kPa, internal friction angle is 10.375 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ?225 | ?119 | ?45 | ?75 | ?56 | ??137 |
Embodiment 20
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 117g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 71g again, after mixing and stirring once more, adding 56g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 137g cleaning at last, oil-water ratio is 1: 2.446, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.749g/cm
3, cohesion is 5.413kPa, internal friction angle is 10.897 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ????25 | ??225 | ??117 | ??45 | ??71 | ??56 | ?137 |
Embodiment 21
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 120g that takes from the 4th layer in area, Shanghai, add kaolin 47g, ground barium sulfate 77g again, after mixing and stirring once more, adding 56g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 137g cleaning at last, oil-water ratio is 1: 2.446, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.751g/cm
3, cohesion is 6.467kPa, internal friction angle is 10.564 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ??120 | ??47 | ??77 | ??56 | ??137 |
Embodiment 22
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 118g that takes from the 4th layer in area, Shanghai, add kaolin 43g, ground barium sulfate 75g again, after mixing and stirring once more, adding 56g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 136g cleaning at last, oil-water ratio is 1: 2.429, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.749g/cm
3, cohesion is 5.866kPa, internal friction angle is 10.730 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ??118 | ??43 | ??75 | ??56 | ??136 |
Embodiment 23
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 116g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 76g again, after mixing and stirring once more, adding 58g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 136g cleaning at last, oil-water ratio is 1: 2.345, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.745g/cm
3, cohesion is 6.067kPa, internal friction angle is 10.730 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ??116 | ??45 | ??76 | ??58 | ??136 |
Embodiment 24
Adopting flyash 25g, the Nanjing six directions to produce rouge and powder sand 225g mixes and stirs with the dry clay powder 117g that takes from the 4th layer in area, Shanghai, add kaolin 45g, ground barium sulfate 74g again, after mixing and stirring once more, adding 58g double stroke machine oil also makes it fully to combine with mix, the tap water that adds the 135g cleaning at last, oil-water ratio is 1: 2.328, after fully stirring, leaves standstill 12 hours again.The density of gained model clay is 1.748g/cm
3, cohesion is 6.317kPa, internal friction angle is 10.730 °.
| Flyash | Rouge and powder sand | Clay | Kaolin | Barite | Machine oil | Water |
| ??25 | ??225 | ??117 | ??45 | ??74 | ??58 | ??135 |
The theoretical value that above-mentioned 24 embodiment and theory of similitude require is identical substantially, has verified the exactness of technical solution of the present invention.
Claims (6)
1, a kind of model clay of simulating soft soil foundation in Shanghai area, its raw material that adopts comprises flyash, rouge and powder sand, clay, kaolin, ground barium sulfate, machine oil and water, its parts by weight are respectively,
Coal ash 25,
Rouge and powder sand 215～230,
Clay 100～123,
Kaolin 40～50,
Ground barium sulfate 71～80,
Machine oil 52～60,
Water 130～140,
Wherein, described clay is for taking from the 4th layer of mud matter soft clay in area, Shanghai.
2, the model clay of simulation soft soil foundation in Shanghai area according to claim 1 is characterized in that: the order number of described rouge and powder sand is 100 orders.
3, the model clay of simulation soft soil foundation in Shanghai area according to claim 1 and 2 is characterized in that: described kaolinic order number is 800 orders.
4, the model clay of simulation soft soil foundation in Shanghai area according to claim 1 and 2 is characterized in that: the order number of described ground barium sulfate is 500 orders.
5, the model clay of simulation soft soil foundation in Shanghai area according to claim 1 and 2 is characterized in that: described machine oil adopts double stroke machine oil.
6, the model clay of simulation soft soil foundation in Shanghai area according to claim 1 and 2, it is characterized in that: in the described model clay, flyash, rouge and powder sand, clay, kaolin, ground barium sulfate, machine oil and water parts by weight are respectively 25,225,119,45,75,56,137.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100241992A CN100364914C (en) | 2005-03-03 | 2005-03-03 | Model soil simulating soft soil foundation in Shanghai area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100241992A CN100364914C (en) | 2005-03-03 | 2005-03-03 | Model soil simulating soft soil foundation in Shanghai area |
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| Publication Number | Publication Date |
|---|---|
| CN1669970A true CN1669970A (en) | 2005-09-21 |
| CN100364914C CN100364914C (en) | 2008-01-30 |
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| CNB2005100241992A Expired - Fee Related CN100364914C (en) | 2005-03-03 | 2005-03-03 | Model soil simulating soft soil foundation in Shanghai area |
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| CN (1) | CN100364914C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807218B (en) * | 2009-09-18 | 2013-04-03 | 中国科学院地理科学与资源研究所 | Heterogeneous network-based land pattern succession simulation system |
| CN103130459A (en) * | 2011-11-29 | 2013-06-05 | 同济大学 | High-compressibility similarity model soil capable of being used for simulating soft soil foundation |
| CN107821087A (en) * | 2017-09-30 | 2018-03-23 | 天津大学 | A kind of method and improvement sand soil with improving sludge sand soil |
| CN108303298A (en) * | 2018-01-29 | 2018-07-20 | 招商局重庆交通科研设计院有限公司 | A kind of artificially preparation method of sand-pebble layer model test material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119689A (en) * | 1994-07-02 | 1996-04-03 | 梁成敖 | Artificial earth crust |
| CN1472418A (en) * | 2003-06-26 | 2004-02-04 | 辽宁天意实业股份有限公司 | High-temperature high-pressure artifical sandproof well wall and construction technology thereof |
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2005
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807218B (en) * | 2009-09-18 | 2013-04-03 | 中国科学院地理科学与资源研究所 | Heterogeneous network-based land pattern succession simulation system |
| CN103130459A (en) * | 2011-11-29 | 2013-06-05 | 同济大学 | High-compressibility similarity model soil capable of being used for simulating soft soil foundation |
| CN103130459B (en) * | 2011-11-29 | 2015-01-14 | 同济大学 | High-compressibility similarity model soil capable of being used for simulating soft soil foundation |
| CN107821087A (en) * | 2017-09-30 | 2018-03-23 | 天津大学 | A kind of method and improvement sand soil with improving sludge sand soil |
| CN107821087B (en) * | 2017-09-30 | 2020-12-11 | 天津大学 | Method for improving sandy soil by using sludge and improved sandy soil |
| CN108303298A (en) * | 2018-01-29 | 2018-07-20 | 招商局重庆交通科研设计院有限公司 | A kind of artificially preparation method of sand-pebble layer model test material |
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| Publication number | Publication date |
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| CN100364914C (en) | 2008-01-30 |
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