scholarly journals The influence of stress state, density and moisture on the dynamic properties of soil cement samples created by the method of deep soil mixing

2019 ◽  
Vol 1425 ◽  
pp. 012200
Author(s):  
A Z Ter-Martirosyan ◽  
E S Sobolev
Keyword(s):  
Stress State ◽  
Dynamic Properties ◽  
State Density ◽  
Deep Soil ◽  
Soil Mixing ◽  
Soil Cement ◽  
Deep Soil Mixing ◽  
Properties Of Soil ◽  
Dynamic Properties Of Soil

Consolidation Behavior of Clay Supported by Soil-Cement Column

2020 ◽  
Vol 861 ◽  
pp. 452-457
Author(s):  
Anuchit Uchaipichat
Keyword(s):  
Deformation Behavior ◽  
Plastic Region ◽  
Elastic Region ◽  
Test Results ◽  
Deep Soil ◽  
Soil Mixing ◽  
Soil Cement ◽  
Deep Soil Mixing ◽  
Mixing Method ◽  
Preparation Techniques

This paper presents the compression and consolidation behaviors of clay supported by soil-cement column. A series of consolidation tests was performed on kaolin samples supported by soil-cement column with the ratio between diameters of column and soil sample () ranging from 0 to 0.4. All samples with soil-cement column were cured for 28 days under the vertical pressure of 25 kPa. The sample preparation techniques simulating dry deep soil mixing method was developed. The test results showed the elastic region expanded with increasing value of . However, there was no effect of on deformation behavior in the elasto-plastic region. Moreover, the value of was considered constant over the range of testing stress level, for the value of of 0 and 0.2. For the value of of 0.3 and 0.4, the values of in the elastic region was greater than that in elasto-plastic region.

scholarly journals Optimal control time evaluation for “dry DSM” soil-cement composites

2018 ◽  
Vol 251 ◽  
pp. 01023 ◽  
Author(s):  
Monika Kiecana ◽  
Piotr Kanty ◽  
Klaudia Łużyńska
Keyword(s):  
Organic Soil ◽  
Deep Soil ◽  
Soil Mixing ◽  
Control Time ◽  
Soil Cement ◽  
Jet Grouting ◽  
Binder Type ◽  
Soil Component ◽  
Deep Soil Mixing ◽  
Strength And Stiffness

Soil improvements with hydraulic binders are a widespread practice in foundation works. They vary depending on the mixing method (jet grouting hydraulic, deep soil mixing -mechanical), medium type (wet/water, dry/air) and binder type (cement, lime, fly ash or mixtures). The produced component’s strength changes in time thus its control should change in time as well. The paper presents the results of laboratory testing of an organic soil component mixed in dry method. The process of samples preparation and testing methodology of compressive strength and stiffness is described. Volatility of the parameters in time is considered. On the basis of the results, recommendation for optimal quality control time and its methodology for soil-cement components might be proposed.

scholarly journals SOIL-CEMENT PILES FIBER REINFORCED

2021 ◽  
Vol 2021 (1) ◽  
pp. 113-119
Author(s):  
Oleksandr Novytskyi ◽  
Keyword(s):  
Bearing Capacity ◽  
Steel Fiber ◽  
Fiber Reinforcement ◽  
Fiber Reinforced ◽  
Deep Soil ◽  
Soil Mixing ◽  
Soil Cement ◽  
Deep Soil Mixing ◽  
Mixing Method

Problems and insufficient research of the issue of reinforcement of soil-cement piles are revealed. The use of fiber for reinforcing piles made by the deep soil mixing method is proposed. As a result, it is expected to increase the strength of soil cement, which will positively affect the bearing capacity of soil-cement piles on the material. Given the advantages for applications in the studies adopted steel fiber. The program of tests with the application of two-factor matrices of planning of experiment is made. The obtained results showed the degree of influence of fiber reinforcement on the strength of soil cement. Practical results have been obtained that can be used for implementation in the process of installation of soil-cement piles.

scholarly journals Application of Effective Microorganisms in Soil-Cement Mixtures

2018 ◽  
Vol 7 (3.2) ◽  
pp. 306
Author(s):  
Oleksandr Petrash ◽  
Ruslan Petrash ◽  
Nataliia Popovych
Keyword(s):  
Mechanical Properties ◽  
Cement Stone ◽  
Deep Soil ◽  
Effective Microorganisms ◽  
Soil Mixing ◽  
Soil Cement ◽  
Deep Soil Mixing ◽  
Cement Mixture ◽  
The Impact ◽  
Cement Mixtures

This paper provides a research data on the impact of effective microorganisms on the physic and mechanical properties of soil-cement mixtures and stone. Deep soil mixing technology considered to be used for manufacturing soil-cement. The purpose of the research is to determine a way of increasing strength of soil-cement by addition of effective microorganisms. Strength increasing method should not compromise the mixture’s movability. Authors used an experimental approach within which there were standard techniques of determining the movability of soil-cement mixture and density and strength of a soil-cement stone in a laboratory environment. This research resulted in discovering the optimal contents of a soil-cement mixture with respect to mechanical properties required. Authors proved the effective microorganisms to be efficient mean of increasing the strength of soil-cement.

scholarly journals Experience of Weak Soil Reinforcement by Soil-Cement Elements Manufactured by Deep Soil Mixing Technology

2018 ◽  
Vol 7 (3.2) ◽  
pp. 486 ◽  
Author(s):  
Mykola Zotsenko ◽  
Yuriyvynnykov . ◽  
Maksym Kharchenko
Keyword(s):  
Soil Reinforcement ◽  
Seismic Stability ◽  
Natural Soil ◽  
Deep Soil ◽  
Soil Mixing ◽  
Oil Storage ◽  
Soil Cement ◽  
Steel Tank ◽  
Deep Soil Mixing ◽  
Land Sliding

Problematic issues of construction and operation in complex geotechnical conditions are systematized (subsiding and peaty soil, silt, filled, man-made soil, saturated, land sliding and seismically hazardous territories, densely developed areas) by the means of reinforcing soil massif by vertical soil-cement elements (SCE) using deep soil mixing (DSM) technology. The practical solution experience of highly efficient “man-made soil-cement base – foundation – structure” systems is shown by the example of complex geotechnical conditions under static and dynamic influences (including earthquakes and critical failure man-made loads), and excavation using SCE. A decreasing in a settlement of soil-cement bases of buildings by 2 – 4 times compared to natural soil massif and increasing in soil-cement mechanical features by 2.5 times has been established. The options of decreasing the seismic hazard (increasing the seismic stability of soil) for securing the emergency-free operation of oil storage vertical steel tank in case of the varying intensity earthquakes utilizing the man-made soil-cement base has been justified.  

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