Design of Roadside Channels with Flexible Linings


Book Description

Flexible linings provide a means of stabilizing roadside channels. Flexible linings are able to conform to changes in channel shape while maintaining the overall lining integrity. Permanent flexible lining such as riprap, gravel, or vegetation reinforced with synthetic mat are suitable for hydraulic conditions similar to those requiring rigid linings. Vegetation or temporary linings are suited to hydraulic condition where uniform flow exists and shear stresses are moderate. Design procedures are given for rock riprap, wire-enclosed riprap, gravel riprap, woven paper net, jute net, fiberglass roving, curled wood mat, synthetic mat, and straw with net. Special design procedures are presented for composite channels and channels with steep gradients. The design procedures are based on the concept of maximum permissible tractive force. Methods for determination of hydraulic resistance and permissible shear stress for individual linings are presented. Nomographs are provided for solution of uniform flow conditions in trapezoidal channels. Nomographs are also provided for determination of resistance characteristics for vegetation and permissible shear stress for soils. (fr).










Design of Roadside Channels with Flexible Linings


Book Description

Flexible linings provide a means of stabilizing roadside channels. Flexible linings are able to conform to changes in channel shape while maintaining overall lining integrity. Long-term flexible linings such as riprap, gravel, or vegetation (reinforced with synthetic mats or unreinforced) are suitable for a range of hydraulic conditions. Unreinforced vegetation and many transitional and temporary linings are suited to hydraulic conditions with moderate shear stresses. Design procedures are given for four major categories of flexible lining: vegetative linings; manufactured linings (RECPs); riprap, cobble, gravel linings; and gabion mattress linings. Design procedures for composite linings, bends, and steep slopes are also provided. The design procedures are based on the concept of maximum permissible tractive force. Methods for determination of hydraulic resistance applied shear stress as well as permissible shear stress for individual linings and lining types are presented. This edition includes updated methodologies for vegetated and manufactured lining design that addresses the wide range of commercial products now on the market. This edition also includes a unified design approach for riprap integrating alternative methods for estimating hydraulic resistance and the steep slope procedures. Other minor updates and corrections have been made. This edition has been prepared using dual units.




Open Channel Design


Book Description

OPEN CHANNEL DESIGN A fundamental knowledge of flow in open channels is essential for the planning and design of systems to manage water resources. Open channel design has applications within many fields, including civil engineering, agriculture, hydrology, geomorphology, sedimentology, environmental fluid and sediment dynamics and river engineering. Open Channel Design: Fundamentals and Applications covers permissible velocity, tractive force, and regime theory design methodologies and applications. Hydraulic structures for flow control and measurement are covered. Flow profiles and their design implications are covered. Sediment transport mechanics and moveable boundaries in channels are introduced. Finally, a brief treatment of the St. Venant equations and Navier-Stokes equations are introduced as topics to be explored in more advanced courses. The central goal is to prepare students for work in engineering offices where they will be involved with aspects of land development and related consulting work. Students will also be prepared for advanced courses that will involve computational fluid dynamics approaches for solving 2-d and 3-d problems in advanced graduate level courses. Offering a fresh approach, Open Channel Design: Fundamentals and Applications prepares students for work in engineering offices where they will be involved with aspects of land development and related consulting work. It also introduces the reader to software packages including Mathematica, HecRas and HY8, all widely used in professional settings.




Fundamentals of Geosynthetic Engineering


Book Description

The development of polymeric materials in the form of geosynthetics has brought major changes to the area of Civil Engineering. Increasing interest in these materials and their use has resulted in significant advances in their practical applications in the last few decades. Following this progress, geosynthetics have become a common and favoured co




Urban Storm Water Management


Book Description

Design Drainage and Storm Water Management Systems Efficiently Urban Storm Water Management, Second Edition covers the design, installation, and maintenance of storm water management systems, addresses the impact of urban development on runoff and infiltration, and focuses on storm water management relative to flooding and water pollution. Recogniz







Site Engineering for Landscape Architects


Book Description

Site Engineering for Landscape Architects Fifth Edition The leading guide to site design and engineering, now fully updated. The leading choice for site engineering, planning, and construction courses, as well as for practitioners in the field, Site Engineering for Landscape Architects, Fifth Edition introduces the principles and techniques of basic site engineering for grading, drainage, earthwork, and road alignment. The Fifth Edition maintains the text's recognized quality, while revising its content to keep readers up to date with current technologies in the field of landscape architecture. Introducing landform and the language of its design, the text explores the site engineering concepts essential to practicing landscape architecture today from interpreting landform and contour lines, to designing horizontal and vertical road alignments, to construction sequencing, to designing and sizing stormwater management systems. Integrating design with the construction and implementation processes, the authors provide students with a progressive understanding of the subject matter. This new edition expands its coverage of such current topics as sustainability, green roofs, bioengineering, and lightweight and structural soils. It also features new case studies, as well as inspiring graphics and color photos with real-world examples. Perfect for use as a study guide for the most difficult section of the Landscape Architecture Registration Exam (LARE) or as a handy professional reference, Site Engineering for Landscape Architects, Fifth Edition gives readers a strong foundation for engaging in site development that is environmentally sensitive and intellectually stimulating.




Open-Channel Flow


Book Description

Open Channel Flow, 2nd edition is written for senior-level undergraduate and graduate courses on steady and unsteady open-channel flow. The book is comprised of two parts: Part I covers steady flow and Part II describes unsteady flow. The second edition features considerable emphasis on the presentation of modern methods for computer analyses; full coverage of unsteady flow; inclusion of typical computer programs; new problem sets and a complete solution manual for instructors.