NDLI: Development of simple sand bypass system using a self-sinking suction pipe with holes

Content Provider	IEEE Xplore Digital Library
Author	Noguchi, H. Fujita, Y. Fujita, I. Noda, I.
Copyright Year	2004
Description	Author affiliation: Port & Airport Res. Inst., Yokosuka, Japan (Noguchi, H.; Fujita, Y.; Fujita, I.; Noda, I.)
Abstract	Because many coastal areas in Japan are in a distressed condition due to beach erosion, beach preservation and restoration have become important problems. Sand bypass systems offer one counter-measure for beach erosion. A typical example of conventional sand bypassing is collection of sand with an excavator and transportation by dump truck. However, with this method, some mechanism is required to move the shovel which is used to collect the sand, and considerable manpower is necessary, including dump truck drivers and others. Moreover, truck transportation also causes air pollution, noise, and other environmental problems. This paper proposes a new sand bypass system with a simple composition comprising a suction pipe with holes, on which a slurry pump is mounted, and a water jet pipe attached to the underside of the suction pipe. The pump inlet is connected to the suction pipe, and the outlet is connected to a sand discharge pipe. In operation, the device is placed on an area of accumulated sand and water is jetted from the water jet pipe, fluidizing the surrounding sand, which is drawn into the suction pipe together with seawater. As the sand is fluidized, the suction pipe/pump assembly sinks into the sand under its own weight, enabling continuous collection/transportation of sand. A prototype experimental device was test-manufactured and used in field experiments. In continuous operation for approximately 1 hour, it was possible to collect/transport 200-500 1/m/sup 3/ of sand, which is roughly equivalent to 50,000 m/sup 3/ in a 3-month period.
Starting Page	71
Ending Page	77
File Size	1594118
Page Count	7
File Format	PDF
ISBN	0780386698
DOI	10.1109/OCEANS.2004.1402897
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-11-09
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pumps Fluidization Sea measurements Air transportation Air pollution Working environment noise Environmental factors Slurries Water pollution Assembly
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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