Estimation of Dredged Fill Volume Based on Self-weight Consolidation Characteristics of Dredged Soil

2019 ◽  
pp. 51-73
Author(s):  
Eun Chul Shin ◽  
Young Jin Park ◽  
Jeong Ku Kang ◽  
Jeong Jun Park
Keyword(s):  
Dredged Soil ◽  
Fill Volume

LARGE-SIZED EXPERIMENT FOR SLOPE STABILITY MANAGEMENT OF DREDGED SOIL IMPROVED WITH CONVERTER SLAG

2019 ◽  
Vol 75 (2) ◽  
pp. I_893-I_898
Author(s):  
Yuzo AKASHI ◽  
Takashi NEGI ◽  
Akira HIGUCHI ◽  
Yasuo KASUGAI ◽  
Masaaki KATAGIRI ◽  
...  
Keyword(s):  
Slope Stability ◽  
Converter Slag ◽  
Dredged Soil

scholarly journals Detailed Characterization and Monitoring of a Retrogressive Thaw Slump from Remotely Piloted Aircraft Systems and Identifying Associated Influence on Carbon and Nitrogen Export

2021 ◽  
Vol 13 (2) ◽  
pp. 171
Author(s):  
Kevin W. Turner ◽  
Michelle D. Pearce ◽  
Daniel D. Hughes
Keyword(s):  
Surface Model ◽  
Carbon And Nitrogen ◽  
Aircraft Systems ◽  
Detailed Classification ◽  
Fill Volume ◽  
Remotely Piloted Aircraft ◽  
Total Irradiance ◽  
Retrogressive Thaw Slump ◽  
Rain Events ◽  
Sediment Export

Ice-rich permafrost landscapes are sensitive to ongoing changes in climate. Permafrost retrogressive thaw slumps (RTSs) represent one of the more abrupt and prolonged disturbances, which occur along Arctic river and lake shorelines. These features impact local travel and infrastructure, and there are many questions regarding associated impacts on biogeochemical cycling. Predicting the duration and magnitude of impacts requires that we enhance our knowledge of RTS geomorphological drivers and rates of change. Here we demonstrate the utility of remotely piloted aircraft systems (RPAS) for documenting the volumetric change, associated drivers and potential impacts of the largest active RTS along the Old Crow River in Old Crow Flats, Yukon, Canada. RPAS surveys revealed that 29,174 m3 of sediment was exported during the initial evacuation in June 2016 and an additional 18,845 m3 continued to be exported until June 2019. More sediment export occurred during the warmer 2017 summer that experienced less cumulative rainfall than summer 2018. However, several rain events during 2017 were of higher intensity than during 2018. Overall mean soil organic carbon (SOC) and total nitrogen (TN) within sampled thaw slump sediment was 1.36% and 0.11%, respectively. A combination of multispectral, thermal and irradiance (derived from the RPAS digital surface model) data provided detailed classification of thaw slump floor terrain types including raised dry clay lobes, shaded and relatively stable, and low-lying evacuation-prone sediments. Notably, the path of evacuation-prone sediments extended to a series of ice wedges in the northern headwall, where total irradiance was highest. Using thaw slump floor mean SOC and TN values in conjunction with sediment bulk density and thaw slump fill volume, we estimated that 713 t SOC and 58 t TN were exported to the Old Crow River during the three-year study. Findings showcase the utility of high-resolution RPAS datasets for refining our knowledge of thaw slump geomorphology and associated impacts.

scholarly journals Shear Friction Characteristics and Modification Factor of Concrete Prepared Using Expanded Bottom Ash and Dredged Soil Granules

2019 ◽  
Vol 13 (1) ◽  
Author(s):  
Keun-Hyeok Yang ◽  
Kyung-Ho Lee
Keyword(s):  
Shear Crack ◽  
Bottom Ash ◽  
Lightweight Aggregate Concrete ◽  
Maximum Aggregate Size ◽  
Crack Plane ◽  
Upper Bound Theorem ◽  
Friction Characteristics ◽  
Dredged Soil ◽  
Shear Friction ◽  
Modification Factor

Abstract The objective of this study is to assess the shear friction characteristics of lightweight aggregate concrete (LWAC) prepared using artificially expanded bottom ash and dredged soil granules. A total of 37 concrete mixtures were prepared under the classification of three series. In the first and second series, the natural sand content for replacing lightweight fine aggregates and the water-to-cement ratio varied to obtain different densities and compressive strengths of concrete. The third series was designed to estimate the effect of the maximum aggregate size on the friction resistance along the shear crack plane of the monolithic interfaces. The frictional angle of the LWAC tested was formulated as a function of the ratio of the effective tensile and compressive strengths of concrete through the expansion of the integrated mathematical models proposed by Kwon et al., based on the upper-bound theorem of concrete plasticity. When predicting the shear friction strength of LWAC, the present mathematical model exhibits relatively good accuracy, yielding the mean and standard deviation of the ratios between experiments and predictions of 1.06 and 0.14, respectively, whereas the empirical equations proposed by the AASHTO provision and Mattock underestimated the results. Ultimately, an advanced modification factor for shear design of LWAC is proposed as a function of the density and compressive strength of concrete and the maximum size of aggregates.

Properties of Artificial Lightweight Aggregates (ALAs) Made of Dredged Soil Mixed with Waste Catalyst Slag

2012 ◽  
Vol 174-177 ◽  
pp. 1079-1085 ◽  
Author(s):  
Si Nae Jo ◽  
Yoo Tack Kim ◽  
Seung Gu Kang ◽  
Chang Sam Kim
Keyword(s):  
Specific Gravity ◽  
Water Absorption ◽  
Lightweight Concrete ◽  
Sintering Temperature ◽  
Thermal Power ◽  
Lightweight Aggregates ◽  
Dredged Soil ◽  
Porous Carriers ◽  
Black Core ◽  
Sintering Method

The artificial lightweight aggregates (ALAs) were manufactured using dredged soil produced at thermal power plant and waste catalyst slag by direct sintering method at 1050~1250°C for 10min. The ALAs of 100% dredged soil showed the black core phenomenon even at the low sintering temperature as 1050°C and become lightened by bloating pores in black core area with sintering temperature. On the other hand, the aggregates with 100% waste catalyst slag did not showed black coring and bloating phenomenon and had the low forming ability and many cracks inside. Adding the dredged soil to the waste catalyst slag decrease the specific gravity by promoting the black coring and bloating inside. The water absorption(%) of ALAs decreased with sintering temperature. The ALAs fabricated in this study showed the specific gravity of 0.8~2.0 and water absorption of 2~16% so it could be applied to various fields such as the lightweight concrete or the field of the porous carriers for purification of a contaminated soil or water.

Clogging effect of prefabricated horizontal drains in dredged soil by air booster vacuum consolidation

2021 ◽  
Author(s):  
Xiuqing Hu ◽  
Weikai Zhang ◽  
Hongtao Fu ◽  
Jun Wang ◽  
Junfeng Ni
Keyword(s):  
Vacuum Consolidation ◽  
Dredged Soil ◽  
Horizontal Drains

CONSOLIDATION CHARACTERISTIC AND STRENGTH ESTIMATION OF MEDIUM HIGH-PRESSURE DEHYDRATION DREDGED SOIL BLOCK

2021 ◽  
Vol 77 (2) ◽  
pp. I_487-I_492
Author(s):  
Kazutaka UENO ◽  
Yoshihisa SUGIMURA ◽  
Kiyonobu KASAMA ◽  
Yasuo KASUGAI ◽  
Masaaki KATAGIRI ◽  
...  
Keyword(s):  
High Pressure ◽  
Dredged Soil ◽  
Soil Block

scholarly journals RECLAMATION OF THE ARTIFICIAL GROUND MADE OF DREDGED SOIL AND CONVERTER SLAG BY USING PIPE MIXING METHOD

2013 ◽  
Vol 69 (2) ◽  
pp. I_952-I_957
Author(s):  
Yosuke YAMAGOSHI ◽  
Yuzo AKASHI ◽  
Masao NAKAGAWA ◽  
Hiroki KANNO ◽  
Yuichi TANAKA ◽  
...  
Keyword(s):  
Converter Slag ◽  
Dredged Soil ◽  
Mixing Method

scholarly journals Correction: Toda, K., et al. Key Factors Affecting Strength Development of Steel Slag-Dredged Soil Mixtures. Minerals 2018, 8(5), 174

Minerals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 473
Author(s):  
Kanako Toda ◽  
Haruna Sato ◽  
Nilan Weerakoon ◽  
Tsubasa Otake ◽  
Satoshi Nishimura ◽  
...  
Keyword(s):  
Steel Slag ◽  
Strength Development ◽  
Key Factors ◽  
Factors Affecting ◽  
Dredged Soil ◽  
Soil Mixtures

The authors wish to make the following corrections to this paper [...]

Study on effect of mixing condition on strength of mixture of dredged soil and steel slag

2012 ◽  
pp. 302-308 ◽  
Author(s):  
S Hirai ◽  
T Mizutani ◽  
Y Kikuchi ◽  
S Nakashima ◽  
K Iguchi
Keyword(s):  
Steel Slag ◽  
Mixing Condition ◽  
Dredged Soil

scholarly journals DEVELOPMENT OF ON-SITE REFORMING METHOD USING IMPROVED DREDGED SOIL BY STEELMAKING SLAG

2018 ◽  
Vol 74 (2) ◽  
pp. I_904-I_909
Author(s):  
Hideki HONDA ◽  
Yoshitomo YAMAMOTO ◽  
Hiroaki YAMAGUCHI ◽  
Kazuho TANISHIKI ◽  
Kazuyuki MIYAMOTO ◽  
...  
Keyword(s):  
Steelmaking Slag ◽  
Dredged Soil
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