TY - JOUR
T1 - Application of EICP for coastal erosion mitigation
AU - Krishnan, Vinay
AU - Khodadadi Tirkolaei, Hamed
AU - Kavazanjian, Edward
N1 - Funding Information:
This material is based upon work supported by the U. S. Army Research Laboratory and the U. S. Army Research Office under contract numbers W911NF-16-1-0336, W911NF-17-1-0262, W911NF-18-1-0068 and W911NF-20-1-0238. The discussions and conclusions presented in this work reflect the opinions of the authors only.
Funding Information:
Financial support for this work was provided by the National Science Foundation Grant No. CMMI-1563428. The support of Dr. Joy Pauschke, program director at the National Science Foundation, is greatly appreciated.
Funding Information:
The authors would also like to gratefully acknowledge the financial support from the National Science Foundation under Grant No. CMMI-1804822.
Funding Information:
The study on which this paper is based was supported by National Science Foundation through Grant #1900445 and NASA -MIRO Grant awarded to University of the District of Columbia. The results and opinions expressed in this paper do not necessarily reflect the views and policies of the National Science Foundation and National Aeronautics and Space Administration.
Funding Information:
This material is based upon work supported in part by the National Science Foundation (NSF) under Grant No. CMMI-1634748 and the U.S. Army Engineer Research and Development Center (ERDC) under contract W9I2HZ-17-C-0021. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of NSF, ERDC or the U.S. Government. Distribution Statement A: Approved for public release: distribution unlimited.
Funding Information:
The first author would like to show his gratitude to LPDP (Indonesia Endowment Fund for Education), which has provided financial support for his graduate study.
Funding Information:
The research described herein was supported by the Center for Bio-mediated and Bio-inspired Geotechnics (CBBG) under National Science Foundation (NSF) Cooperative Agreement No. EEC-1449501 and as a Payload Project under NSF Grant No. CMMI-1933350. The authors are grateful for the NSF support. Any opinions, findings and conclusions, or recommendations expressed in this material are thosee of the authors and do not necessarily reflect those of the NSF. The authors would like to thank the principal investigators of the CMMI grant, Dr. Brina Montoya of North Carolina State University and Dr. T. Matthew Evans of Oregon State University and their students for their guidance and assistance in the testing described herein. The authors would also like to thank the staff at O.H. Hinsdale Wave Research Laboratory, Drs. Dan Cox, Meagan Wengrove, and Tim Maddux, for their technical assistance.
Funding Information:
This research was partially supported by the National Science Foundation awards number CMMI-1728612 and CMMI-1000908. This support is gratefully acknowledged.
Funding Information:
This research was partially supported by the National Science Foundation award number CMMI-1728612. This support is gratefully acknowledged.
Publisher Copyright:
© ASCE.
PY - 2021
Y1 - 2021
N2 - An experiment to evaluate the use enzyme induced carbonate precipitation (EICP) for coastal erosion mitigation was conducted in the large wave flume at the O.H. Hinsdale Wave Research Laboratory at Oregon State University. The surface of a model sand dune was stabilized using EICP. The test slope was 7.2 m long, 1.8 m wide, and 1.5 m high (measured from the mean water level) and was composed of a local uniform fine beach sand. The slope surface was treated via EICP to form an approximately 5 cm-thick crust. In addition to crust formation, a 0.38 m-deep, 0.8 m in breadth zone at the toe of the slope was treated in lifts using EICP to form a toe wall across the 1.8 m width of the flume. The erosion resistance of the treated slope was tested by applying 20 wave trains of progressively increasing intensity. The crust remained intact for the first two wave trains and then progressively eroded until, at the end of the trials, the crust was completely eroded. However, portions of the toe wall remained intact at the end of the experiment and appear to have inhibited undercutting of the slope. The results of the experiment suggest that coastal erosion can be mitigated by construction of an EICP-stabilized toe wall to protect against undercutting of a slope and that it may be possible to construct a surficial EICP barrier of sufficient thickness to reduce slope erosion to a minimum, depending on the magnitude of the wave load.
AB - An experiment to evaluate the use enzyme induced carbonate precipitation (EICP) for coastal erosion mitigation was conducted in the large wave flume at the O.H. Hinsdale Wave Research Laboratory at Oregon State University. The surface of a model sand dune was stabilized using EICP. The test slope was 7.2 m long, 1.8 m wide, and 1.5 m high (measured from the mean water level) and was composed of a local uniform fine beach sand. The slope surface was treated via EICP to form an approximately 5 cm-thick crust. In addition to crust formation, a 0.38 m-deep, 0.8 m in breadth zone at the toe of the slope was treated in lifts using EICP to form a toe wall across the 1.8 m width of the flume. The erosion resistance of the treated slope was tested by applying 20 wave trains of progressively increasing intensity. The crust remained intact for the first two wave trains and then progressively eroded until, at the end of the trials, the crust was completely eroded. However, portions of the toe wall remained intact at the end of the experiment and appear to have inhibited undercutting of the slope. The results of the experiment suggest that coastal erosion can be mitigated by construction of an EICP-stabilized toe wall to protect against undercutting of a slope and that it may be possible to construct a surficial EICP barrier of sufficient thickness to reduce slope erosion to a minimum, depending on the magnitude of the wave load.
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U2 - 10.1061/9780784483428.017
DO - 10.1061/9780784483428.017
M3 - Conference article
AN - SCOPUS:85105998495
SN - 0895-0563
VL - 2021-May
SP - 160
EP - 169
JO - Geotechnical Special Publication
JF - Geotechnical Special Publication
IS - GSP 325
T2 - 2021 International Foundations Congress and Equipment Expo: From Traditional to Emerging Geotechnics, IFCEE 2021
Y2 - 10 May 2021 through 14 May 2021
ER -