Bottomless Culvert Scour Study PDF ePub eBook

Books Info:

Bottomless Culvert Scour Study free pdf Bottomless culverts are three-sided structures that use the natural channel for the bottom. These structures could be used to convey flows from one side of a highway to the other. As such, they are an environmentally attractive alternative to box, pipe, and pipe arch culvert designs. Bottomless culverts range in size from less than a meter (1.5 feet) to more than 10 meters (35 feet) in width. The failure of such a structure could have severe consequences similar to the failure of a bridge. On the other hand, since the cost of the foundation and scour countermeasures represents a significant portion of the cost of this type of structure, overdesign of these elements can add significantly to the cost of the project. Several dozen physical modeling configurations of bottomless culverts were tested, and the resulting scour at the entrance along the foundation and outlet was measured. Predictive equations for estimating scour depth were developed and compared to MDSHA methodology. These equations will provide guidance for the design of footing depths for bottomless culverts. The study was conducted in two phases. The first phase focused on measuring maximum scour depths at the culvert entrance and developing an analysis procedure using methods found in the literature to approximate prescour hydraulic parameters that drive the analysis. No fixed-bed experiments were conducted in the first phase to measure actual prescour hydraulic parameters. No submerged entrance experiments were conducted in the first phase. The second phase expanded the investigation to include scour measurements at the outlet, submerged entrance scour measurements, and detailed velocity and depth measurements with a prescour fixed bed at locations where maximum scour occurred. Additional tests were conducted to evaluate the use of various measures to reduce scour including wingwalls, pile dissipators, riprap, and cross vanes.

About U S Department of Transportation

Regrettably, currently we cannot provide you with info on the particular Author U S Department of Transportation. But this doesn't imply that individuals are unsuccessful on the selection. We also consult that you just help us in this particular make any difference. For those who have spare time and require can greatly appreciate if you present to all of us the information. While acquiring these kinds of feedback and data from customers about the Bottomless Culvert Scour Study Writer U S Department of Transportation, we all 1st your ex verify. The moment most of us make sure that almost all correct, merely publish that. Most of us can see this assist along with thanks in advance.

Details Book

Author : U S Department of Transportation
Publisher : Createspace
Data Published : 12 March 2015
ISBN : 150883640X
EAN : 9781508836407
Format Book : PDF, Epub, DOCx, TXT
Number of Pages : 74 pages
Age + : 15 years
Language : English
Rating :

Reviews Bottomless Culvert Scour Study



17 Comments Add a comment




Related eBooks Download


  • Bottomless Culvert Scour Study free pdfBottomless Culvert Scour Study

    Bottomless (or three-sided) culverts use the natural channel bed and are environmentally attractive alternatives to traditional closed culverts. Moreover. they are considered by many highway agencies to be economical alternatives for replacing short bridges..


  • Enhanced Abutment Scour Studies for Compound Channels free pdfEnhanced Abutment Scour Studies for Compound Channels

    Experimental results and analyses are given in this report on bridge abutment scour in compound channels. Experiments were conducted in a laboratory flume with a cross section consisting of a wide floodplain adjacent to a main channel..


  • Sam: After Man (SAM) free pdfSam: After Man (SAM)

    In the grim future of our world. Earth has been ravaged by sentient machines. the human race all but exterminated. Only scattered groups of children have survived by hiding in tunnels to escape the murderous robots that still scour the surface..


  • Earth Awakens free pdfEarth Awakens

    TIME IS RUNNING OUT FOR HUMANITY It is one hundred years before the events of Ender's Game. Tens of millions are dead in China as the invading Formics scour the landscape and gas cities with a lethal alien chemical..


  • Cognitive Search free pdfCognitive Search

    Over a century ago. William James proposed that people search through memory much as they rummage through a house looking for lost keys. We scour our environments for territory. food. mates. and information..


  • Bottomless Culvert Scour Study free pdfBottomless Culvert Scour Study

    . Bottomless culverts are three-sided structures that use the natural channel for the bottom. These structures could be used to convey flows from one side of a highway to the other. As such, they are