Selection of Optimized Binders for Dechlorination of Trichloroethylene-Contaminated Sites by Jet Grouting and Deep Soil Mixing

2021 ◽  
Vol 147 (11) ◽  
pp. 04021052
Author(s):  
Peter Freitag ◽  
Holger Maurer ◽  
Thomas G. Reichenauer
Keyword(s):  
Contaminated Sites ◽  
Deep Soil ◽  
Soil Mixing ◽  
Jet Grouting ◽  
Deep Soil Mixing ◽  
Selection Of

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 Static Survey as Geological Engineering Method Verification of DSM Column Formation

Geosciences ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 216
Author(s):  
Rafał Jendruś ◽  
Arkadiusz Stawiarski ◽  
Grzegorz Pach ◽  
Piotr Pierzyna
Keyword(s):  
State Of The Art ◽  
Ground Improvement ◽  
Cone Penetration ◽  
Deep Soil ◽  
Working Pressure ◽  
Entire Area ◽  
Soil Mixing ◽  
Column Formation ◽  
Deep Soil Mixing ◽  
Selection Of

The state-of-the-art methods for verifying the correctness of ground improvement performed using the DSM (Deep Soil Mixing) technology are largely focused on the selection of adequate factors impacting the achievement of a correct compressive strength fc [MPa] of the column core, which ensures the transfer of stress from the designed structures to the subsoil. In view of the operation of each of the columns, it is equally significant to ensure that their bases are located in load-bearing soil at the entire area of the improvement, without the need to perform many costly subsoil surveys. Based on the complementary soil investigation results and parameters obtained during deep soil mixing from an automatic logger installed on the drilling machine, a method of comparing the rotary drive pressure (working pressure) PKDK [bar] and the cone resistance qc [MPa] of the CPTU static probe (Cone Penetration Test Unit with Pore Pressure Measurement) was developed along with the method to interpret the results in the context of the correctness of the ground improvement on the construction site analyzed in this paper.

Remarks on wet deep soil mixing quality control

ce/papers ◽  
2018 ◽  
Vol 2 (2-3) ◽  
pp. 427-432
Author(s):  
Jean Luc CHAUMENY ◽  
Piotr KANTY ◽  
Tobias REITMEIER
Keyword(s):  
Quality Control ◽  
Deep Soil ◽  
Soil Mixing ◽  
Mixing Quality ◽  
Deep Soil Mixing

Enhancement of contractive tailings using deep soil mixing technique at Kittilä mine

2019 ◽  
pp. 3396-3409
Author(s):  
E. Masengo ◽  
M.R. Julien ◽  
P. Lavoie ◽  
T. Lépine ◽  
J. Nousiainen ◽  
...  
Keyword(s):  
Deep Soil ◽  
Soil Mixing ◽  
Deep Soil Mixing

scholarly journals The selection of sealing technologies of the subsoil and hydrotechnical structures and quality assurance

2019 ◽  
Vol 9 (1) ◽  
pp. 420-427 ◽  
Author(s):  
Zdzisław Skutnik ◽  
Marek Bajda ◽  
Mariusz Lech
Keyword(s):  
Environmental Control ◽  
Cementitious Materials ◽  
Lateral Spreading ◽  
Hydraulic Permeability ◽  
Thin Wall ◽  
Deep Soil ◽  
Soil Mixing ◽  
Cone Penetration Tests ◽  
Jet Grouting ◽  
Geotechnical Investigations

AbstractVarious types of trenchless methods are extensively used to create engineering barriers for the purpose of achieving relatively low hydraulic conductivity of the subsoil and hydrotechnical structures. The most commonly used technologies of the grouting curtain creating are the DSM (Deep Soil Mixing), WIPS (Vibro Injcted Thin Wall), low-pressure injection and jet-grouting. Vertical barriers are widely used in environmental control systems to restrict the lateral spreading of liquid or gaseous contaminants and for seepage control through and beneath a levees. The barrier walls are constructed in a single or two phases using a slurry composed mainly of bentonite, cementitious materials and water. Often to solve complex geotechnical problems the technologies are combined (e.g. combining DSM and jet grouting). In the paper some examples of practical application of chosen types of technology dedicated different problems solving are presented. The results of geotechnical investigations of hydraulic permeability, shear strength and depth control of cut-off wall are given. The tests were carried out using BAT system, Cone Penetration Tests (CPT) and drillings. The presented test results should help define the technical and financial criteria that should be used to compare grouting based methods and other techniques applicable to the same geotechnical special works. These recommendations should permit an adequate application of grouting techniques and contribute to finding solutions for the delicate problem of ground sealing, notably when proceeding with hydrotechnical or environmental structures placed below water table.

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