CI/ASCE Standard 38-02 presents a credible system for classifying the quality of utility location information that is placed in design plans. The Standard addresses issues such as: how utility information can be obtained, what technologies are available to obtain that information; how that information can be conveyed to the information users; who should be responsible for typical collection and depiction tasks; what factors determine which utility quality level attribute to assign to data; and what the relative costs and benefits of the various quality levels are. Used as a reference or as part of a specification, the Standard will assist engineers, project and utility owners, and constructors in developing strategies to reduce risk by improving the reliability of information on existing subsurface utilities in a defined manner.

This synthesis study is intended to provide airport operators, airport service providers, and utilities/infrastructure owners with ways in which information on subsurface utilities is collected, maintained, and used by airports, their consultants, and the Federal Aviation Administration (FAA) to increase the effectiveness of and enhance safety during infrastructure development programs at airports. It compares the current state of technology and effective processes from other industry sectors with what airports do today, allowing airports to consider areas for improvement. To gather relevant information on current practices, literature was reviewed and 16 airports were surveyed.

This volume includes the papers presented at the North American Tunneling 2002 Conference. The papers deal with three major aspects of underground construction: managing construction projects; public policy and underground facilities; and advances in technology.

This book, based on Transport and Urban Development COST Action TU1208, presents the most advanced applications of ground penetrating radar (GPR) in a civil engineering context, with documentation of instrumentation, methods and results. It explains clearly how GPR can be employed for the surveying of critical transport infrastructure, such as roads, pavements, bridges and tunnels and for the sensing and mapping of underground utilities and voids. Detailed attention is also devoted to use of GPR in the inspection of geological structures and of construction materials and structures, including reinforced concrete, steel reinforcing bars and pre/post-tensioned stressing ducts. Advanced methods for solution of electromagnetic scattering problems and new data processing techniques are also presented. Readers will come to appreciate that GPR is a safe, advanced, non destructive and noninvasive imaging technique that can be effectively used for the inspection of composite structures and the performance of diagnostics relevant to the entire life cycle of civil engineering works.

本书精选了CIB W99“建筑安全与健康的全球合作”国际会议论文75篇,涉及有关建筑安全与健康的法律、战略和发展规划,规范和标准,教育培训和持续学习,风险分析与决策,安全投资和效益,量测及定量分析,信息技术和自动控制的应用等内容。

This report is a resource for understanding subsurface utility engineering (SUE) and bringing up-to-date practices to the application of SUE for public works projects.