| Product Applications |
| Infrastructure projects rely on precision surveys |
| June 15, 2009 CE News |
| The ability to conduct precision surveys using robotic total stations and 3D laser scanners—in conjunction with powerful processing and analysis software—is broadening the application of geomatics technology in the civil infrastructure arena. The following three examples demonstrate how such technology can improve safety during dam rehabilitation and tunnel construction and provide high levels of detail for effective operation and maintenance of bridges and roads… |
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| Product Applications |
| Road Design Basics with AutoCAD Civil and Civil 3D |
| June 5, 2009 Autodesk |
| The goal of this document is to outline the fundamentals of road design through corridors while focusing on the behavior and function of assemblies and subassemblies. |
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| Product Applications |
| What does BIM mean for civil engineers? |
| October 5, 2008 CE News |
| A few weeks ago, I was on the phone with a civil engineer who needed help with a question he was asked by an architecture firm: "Are you BIM ready?" The civil engineer had a good understanding of the benefits of building information modeling (BIM) for building design, and had ideas about how those benefits might extend to civil engineers. But he wasn’t sure how to answer the question. Did BIM even apply to civil engineers? And if it did, would he have to use new software to be "BIM ready?" What if he wasn’t working on projects that involved buildings? Could he still do BIM? |
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| White Papers |
| Bridge Approach Research Report |
| February 1, 2006 Kleinfelder/Colorado DOT |
| Abstract: Construction of a typical Colorado DOT (CDOT) bridge approach structure includes placement of a high quality backfill material behind the abutment wall, and installation of a concrete approach slab supported by the bridge abutment wall at one end and the sleeper slab foundation at the roadway end. Since 1992, three new alternatives for the abutment backfill have been employed by CDOT: (1) relatively expensive flowfill; (2) lower cost mechanically stabilized earth (MSE) using granular, well-graded Class-1 Backfill, and (3) MSE using free draining Class B Filter soil. However, bridge bump problems at the sleeper slab are still occurring. In the Founders/Meadows bridge structure, both the bridge footings and approaches are supported by geosynthetic-reinforced soil (GRS) walls to minimize the uneven settlements between the bridge and its approaches (called "GRS Abutment"). Since this structure is unique, performance data from gauges embedded in the approaches and from smoothness tests were collected over five years. The objective of this study is to improve CDOT’s current practice for bridge approaches (improve performance and reduce costs) based on the following information obtained in this study: 1) comments and suggestions collected from CDOT Staff and reported in the literature; 2) performance and cost-effectiveness of CDOT's MSE and flowfill bridge approaches and performance and design assessment of the Founders/Meadows GRS approaches; and 3) causes and sources of the bridge approach settlement problems observed in some of CDOT's MSE and flowfill bridge approaches. |
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| State-to-State |
| Coming Soon! Interviews with DOT officials, on-site videos, and more! |
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Department of Transportation makes steps to ensure the structure's ecological footprint is as small as possible, leaving room for natural habitats to flourish.
