scholarly journals Error Analysis of Dynamic Triaxial Test Process

2013 ◽  
Vol 02 (02) ◽  
pp. 96-99
Author(s):  
文强 黄
Keyword(s):  
Error Analysis ◽  
Triaxial Test ◽  
Dynamic Triaxial Test ◽  
Test Process

scholarly journals Dynamic Triaxial Test and Microscopic Study of Solidified Muddy Soil With Different Mixing Ratios and Curing Ages

2021 ◽  
Vol 8 ◽  
Author(s):  
Zhou Chen ◽  
Haocheng Xu ◽  
Mayao Cheng ◽  
Hanwen Lu ◽  
Zhijian Wang ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Triaxial Test ◽  
High Speed ◽  
Dynamic Strength ◽  
Dynamic Strain ◽  
Hydration Reaction ◽  
Curing Agent ◽  
Mixture Ratio ◽  
Dynamic Triaxial Test ◽  
Curing Age

Aiming to explore the optimal mixture ratio and curing age of solidified muddy soil under dynamic load, the paper intends to investigate whether the solidified muddy soil can be used as filling of high-speed railway subgrade. Based on the dynamic triaxial test, the investigation measured the dynamic strain and dynamic elastic modulus of solidified muddy soil under different mix ratios and curing ages, and also observed the microscopic morphology of solidified muddy soil samples by using scanning electron microscope. The results show that the addition of cement and curing agent significantly increases the dynamic strength and elastic modulus of muddy soil, which effectively improve the dynamic characteristics of muddy soil. The curing effect of the curing agent is more obvious with the increase of the dosage of cement and curing agent under different mix ratio. The content of curing agent plays a leading role in the hydration reaction between cement, curing agent and soil particles. Additionally, in case of the same test conditions, when the ratio of cement mass to dry silt mass is 1:20, the ratio of diluent volume to dry silt mass is 1:20, with 28 days of curing age, its curing effect will reach the best.

Dynamic Stress-Strain Relationship of Saturated Clay by Dynamic Triaxial Test

2011 ◽  
Vol 250-253 ◽  
pp. 3183-3186
Author(s):  
Jian Yi Yuan
Keyword(s):  
Triaxial Test ◽  
Dynamic Stress ◽  
Soft Clay ◽  
Confining Pressure ◽  
Dynamic Shear ◽  
Stress Strain ◽  
Dynamic Triaxial Test ◽  
Wide Range ◽  
Strain Relationship ◽  
Relationship Of

Subgrade diseases are exposed more and more serious with raising speed of existing railway in wide range. Fro the complexity of dynamic stress-strain relationship of soil, dynamic triaxial test was used to analyze .the dynamic mechanics behavior under cyclic train load for saturated soft clay in Yangtze Delta region. Compaction coefficient, confining pressure, dynamic shear strsss ratio, inputing stimulus and loading frequence were taken into account in test. The results show that the dynamic stress-strain curves of soil specimen are provided with prominent hysteretic characteristics and area surrounded by hysteretic curves gradually augment and slope of hysteretic curve decreases with the increase of dynamic shear train amplitude. The strong correlation exists between dynamical stress and strain.

Dynamic Feature Analysis for Silty Sand

2015 ◽  
Vol 1089 ◽  
pp. 223-227
Author(s):  
Jin Bin Zhao ◽  
Hui Meng Zhao ◽  
Xiao Liu ◽  
Jie Meng
Keyword(s):  
Shear Stress ◽  
Triaxial Test ◽  
Silty Sand ◽  
Feature Analysis ◽  
Dynamic Shear Modulus ◽  
Dynamic Feature ◽  
Dynamic Shear ◽  
Cyclic Shear ◽  
Dynamic Triaxial Test ◽  
Deviator Stress

Dynamic shear modulus is proportional to average principal stress.Cyclic varied surrounding pressure isn't proportional to cyclic varied pore water pressure.The dynamic triaxial test with cyclic surrounding pressure can apply cyclic surrounding pressure.The dynamic triaxial test with cyclic surrounding pressure can apply cyclic surrounding pressure in addition to the cyclic deviator stress and it can simulate the coupling of cyclic shear stress and it can simulate the coupling of cyclic shear stress and cyclic normal stress in an earthquakes.

Comprehensive Effect of the Property Indexes on the Saturated Original Loess Liquefaction

2012 ◽  
Vol 594-597 ◽  
pp. 419-424
Author(s):  
Qian Wang ◽  
Lan Min Wang ◽  
Jun Wang ◽  
Hai Ping Ma ◽  
Yong Qi Su
Keyword(s):  
Triaxial Test ◽  
Main Property ◽  
Experimental Results ◽  
Control Factor ◽  
Testing System ◽  
Main Role ◽  
Dynamic Triaxial Test ◽  
Leading Role

In this paper, the effects of the main property indexes on the saturation original loess liquefaction is analyzed through the dynamic triaxial test by using the WF-12440 testing system, combined with the experimental results, the influence of density-grain degree coupling on saturated loess liquefaction is comprehensively analyzed. The result shows that the influence of density-grain degree coupling on saturation loess liquefaction has a feature of segmentation, plastic index plays the main role for loose loess, whereas density is the main control factor to dense loess; Moreover, the influence of density-grain degree coupling on saturated loess liquefaction controlled by cyclic numbers of the vibration, plastic index plays the leading role while the vibration times is small, while the more vibration times, the bigger density and higher strength of liquefaction.

scholarly journals Dynamic Characteristics of the Rubber-Tailings Mixture Based on Dynamic Triaxial Test

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Huandui Liu ◽  
Haiming Liu ◽  
Wenyun Ding ◽  
Hongtao Xie
Keyword(s):  
Dynamic Characteristics ◽  
Triaxial Test ◽  
Ph Value ◽  
Rubber Particle ◽  
Combined Treatment ◽  
Engineering Application ◽  
Cycle Number ◽  
Dynamic Triaxial Test ◽  
Waste Rubber ◽  
Effect Theory

The liquefaction of tailings is a common failure mode under earthquake actions. The traditional treatment measures of waste rubber have the disadvantages of environmental pollution and occupying soil resources. The combined treatment of waste rubber and tailings is very likely to have important engineering application and theoretical value, and the dynamic characteristics of the rubber-tailings mixture (RTM) are essential and indispensable for handling them together. In this paper, the dynamic triaxial test was used to study the dynamic mechanical characteristics of the RTM. The test was divided into 5 groups with 54 valid samples. The effects of the rubber particle size, rubber content, consolidation pressure, pH value, and soaking time on the dynamic characteristics of the RTM were studied and discussed. The results show that the liquefaction cycle number of the RTM is 50% higher than that of tailings, and the particle cluster effect theory of the RTM is put forward. It will provide a theoretical basis and guidance for the treatment of the waste rubber and tailings.

Identifying fatigue damage of mudded intercalations based on dynamic triaxial test

2021 ◽  
Vol 280 ◽  
pp. 105933
Author(s):  
Changbin Yan ◽  
Hejian Wang ◽  
Xiao Xu ◽  
Yanchang Zhang
Keyword(s):  
Fatigue Damage ◽  
Triaxial Test ◽  
Dynamic Triaxial Test

Research on the Dynamic Characteristics of Clay

2014 ◽  
Vol 535 ◽  
pp. 764-767
Author(s):  
Qian Feng ◽  
Heng Li ◽  
Yi Zhang
Keyword(s):  
Triaxial Test ◽  
Damping Ratio ◽  
Dynamic Strain ◽  
Soil Parameters ◽  
Dynamic Shear Modulus ◽  
Resonant Column ◽  
Column Test ◽  
Dynamic Triaxial Test ◽  
Response Characteristics ◽  
Resonant Column Test

In order to obtain the dynamic response characteristics of soil parameters, dynamic triaxial test is a commonly used method, but the project generally use the resonant column test instead. We selected a typical clay in Wuhan were carried out dynamic triaxial and resonant column test, get the relationship of the dynamic shear modulus ratio and dynamic strain under different dynamic stress and dynamic relationship with the dynamic strain damping ratio, respectively. Comparative analysis showed that the resonant column test obtained smaller results than the dynamic triaxial test.

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