Effect of Biologically Induced Cementation via Ureolysis in Stabilization of Silty Soil

2021 ◽  
pp. 1-17
Author(s):  
Siddhartha Mukherjee ◽  
Ramendu Bikas Sahu ◽  
Joydeep Mukherjee
Keyword(s):  
Silty Soil

Compressive strength and microstructure evolution of lime-treated silty soil subjected to kneading action

2021 ◽  
pp. 100568
Author(s):  
Geetanjali Das ◽  
Andry Razakamanantsoa ◽  
Gontran Herrier ◽  
Dimitri Deneele
Keyword(s):  
Compressive Strength ◽  
Microstructure Evolution ◽  
Silty Soil

Analysis of behavior of melted dark green silty soil

2008 ◽  
Vol 2 (3) ◽  
pp. 242-245
Author(s):  
Yiqun Tang ◽  
Ping Yang ◽  
Feng Shen ◽  
Nianqing Zhou
Keyword(s):  
Silty Soil ◽  
Dark Green

Experimental Study on Influences of Wave Height on Liquefaction Depth of Silty Soil Bed

2010 ◽  
Author(s):  
Yueqian Yu ◽  
Guohui Xu ◽  
Xin Wang ◽  
Huixin Liu ◽  
Qingpeng Zhao
Keyword(s):  
Wave Height ◽  
Yellow River ◽  
Empirical Relationship ◽  
Soil Layer ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
Experimental Conditions ◽  
The Yellow River Delta ◽  
Silty Soil

Storm waves tend to cause seabed liquefaction by exerting strong cyclic loads on the seabed of the Yellow River Delta. In order to study influences of different wave heights on liquefaction depth of the soil bed, silty soil taken from the Yellow River Delta is used to prepare a soil bed for flume experiments and local parts of superficial soil layer were disturbed by hand. The weakened soil tended to liquefy and slide under wave actions and the liquefaction depth increased with the increasing of wave height. Based on the experimental results, an empirical relationship was proposed between liquefaction depth of silty soil bed and wave height under experimental conditions.

Strength and Deformation Characteristics of Stabilized Silty Soil

2012 ◽  
Vol 594-597 ◽  
pp. 512-515
Author(s):  
Zheng Rong Zhao ◽  
Hong Xia Yang
Keyword(s):  
Internal Friction ◽  
Brittle Failure ◽  
Yellow River ◽  
Strain Curve ◽  
Friction Angle ◽  
Confining Pressure ◽  
Alluvial Plain ◽  
The Yellow River ◽  
Stress Strain Curve ◽  
Silty Soil

Combined with the silty soil characteristics of the Yellow River alluvial plain and the subgrade filling of Ji-He expressway, the paper discusses silty soil, stabilized silty soil strength and stress-stain characteristics through the indoor triaxial shear test. The results show that the remodeling silty soil has obvious peak, brittle failure, low residual strength after being destroyed and the stress-strain curve shows a softening type in confining pressure 100kPa lower stress level. In the confining pressure 400kPa higher stress level, soil samples peak is not obvious,mainly plastic failure and the stress-strain curve is close to a hardening type. Compared to mixed with 8% lime, stabilized silty soil of mixed with 4% cement and 4% lime shows that the partial stress peak is more obvious when destroyed and the residual strength is drastically reduced and more incline to brittle failure. In different the age, compared to mixed with 8% lime, stabilized silty soil of mixed with 4% cement and 4% lime shows that internal friction angle becomes larger and cohesion improves gradually whose amplitude is much larger than internal friction angle. Therefore, a more effective way to stabilize the silty soil of the Yellow River alluvial plain is to select silty soil mixed with 4% cement and 4% lime.

scholarly journals Experimental observation on laterally loaded pile in unsaturated silty soil

2019 ◽  
Vol 56 (11) ◽  
pp. 1545-1556 ◽  
Author(s):  
L.M. Lalicata ◽  
A. Desideri ◽  
F. Casini ◽  
L. Thorel
Keyword(s):  
Water Table ◽  
Ground Surface ◽  
Bending Moment ◽  
Data Interpretation ◽  
Partial Saturation ◽  
Laterally Loaded Piles ◽  
Silty Soil ◽  
Centrifuge Tests ◽  
Surface Data ◽  
Laterally Loaded

An experimental study was carried out to investigate the effects of soil partial saturation on the behaviour of laterally loaded piles. The proposed study was conducted by means of centrifuge tests at 100g, where a single vertical pile was subjected to a combination of static horizontal load and bending moment. The study was conducted on a silty soil characterized with laboratory testing under saturated and unsaturated conditions. During flight, two different positions of water table were explored. The influence of density was investigated by compacting the sample with two different void ratios. Finally, the effects of a variation of saturation degree on the pile response under loading were studied by raising the water table to the ground surface. Data interpretation allows drawing different considerations on the effects of partial saturation on the behaviour of laterally loaded piles. As expected, compared to saturated soils, partial saturation always leads to a stiffer and resistant response of the system. However, the depth of the maximum bending moment is related to the position of the water table and the bounding effects induced by partial saturation appear to be more important for loose soils.

scholarly journals Influence of pore fluid-soil structure interactions on compacted lime-treated silty soil

2021 ◽  
pp. 106496
Author(s):  
Geetanjali Das ◽  
Andry Razakamanantsoa ◽  
Gontran Herrier ◽  
Dimitri Deneele
Keyword(s):  
Soil Structure ◽  
Pore Fluid ◽  
Silty Soil

scholarly journals Effect of the Boron Concentration in Irrigation Water on the Elemental Composition of Edible Parts of Tomato, Green Bean, Potato, and Cabbage Grown on Soils With Different Textures

2021 ◽  
Vol 12 ◽  
Author(s):  
Márk Rékási ◽  
Péter Ragályi ◽  
Anna Füzy ◽  
Nikolett Uzinger ◽  
Péter Dobosy ◽  
...  
Keyword(s):  
Elemental Composition ◽  
Irrigation Water ◽  
Tomato Fruit ◽  
Silty Sand ◽  
Green Bean ◽  
Human Consumption ◽  
Photosynthetic Parameters ◽  
Silty Soil ◽  
Tomato Fruit Ripening ◽  
Edible Parts

The most important environmental source of boron (B) contamination is irrigation water. The data on the effect of B on the elemental composition in the edible parts of vegetables are scarce. A greenhouse pot experiment investigated the effect of irrigation water containing 0.1 and 0.5 mg/L B on the biomass, elemental (e.g., B, Mg, K, Fe, Cu, and Zn) composition, and photosynthetic parameters of tomato (Solanum lycopersicum), green bean (Phaseolus vulgaris), potato (Solanum tuberosum), and cabbage (Brassica oleracea) plants grown on 10 kg of sand, silty sand, or silty soil. The biomass of the edible part was unaffected by B treatment. The soil type determined the effect of B irrigation on the elemental composition of vegetables. The B content increased by 19% in tomatoes grown on silty soil. The 0.1 mg/L B treatment facilitated tomato fruit ripening on all soils, and the 0.5 mg/L B treatment doubled its chlorophyll content index (CCI) on silty soil. The 0.5 mg/L B treatment negatively affected the nutritional value of green beans on all soils, decreasing the Fe and K contents by an average of 83 and 34%, respectively. The elemental composition of potato was unaffected by the treatments, but the CCI of potato leaves increased in the 0.5 mg/L B treatment by 26%. The B content was increased by 39% in cabbages grown on light-textured soils. In conclusion, B concentration of up to 0.5 mg/L in irrigation water had no significant beneficial or adverse effect on the investigated vegetables, but 0.1 mg/L B treatment could shorten tomato fruit maturation time on B-poor soils. The B levels in vegetables remained suitable for human consumption.

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