System and method for increasing roadway width incorporating a reverse oriented retaining wall and soil nail supports
US8376661B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2010 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Sep 3, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D29/0291
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system and method are provided for increasing the width of an existing roadway. The system incorporates a reverse-oriented retaining wall and soil nail supports. The retaining wall is formed by a first set of soil nails, wire mesh material, and one or more geotextile material layers. An alternate embodiment forms the retaining wall with a plurality of concrete blocks stacked and spaced to form a block wall. The blocks are mounted over the first set of nails and can be filled with mortar. Backfill material fills a gap between the existing sloping surface and the retaining wall. A second set of soil nails can be provided for additional subsurface support. An upper surface of the backfill material can be paved to form the extended roadway width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.