Patent application number | Description | Published |
20100054866 | METHOD AND APPARATUS FOR CREATING SOIL OR ROCK SUBSURFACE SUPPORT - A subsurface support is provided in the form of a soil nail. The soil nail has asperities formed on the outer surface thereof to improve the pullout capacity of the soil nail. The asperities can take a number of forms to include indentations, deformations and threads formed on the outer surface of the soil nail. Optionally, a stinger may be attached to a distal end of the soil nail to further enhance the pullout capacity of the soil nail. | 03-04-2010 |
20110286795 | SYSTEM AND METHOD FOR INCREASING ROADWAY WIDTH INCORPORATING A REVERSE ORIENTED RETAINING WALL AND SOIL NAIL SUPPORTS - 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. The cantilevered configuration of the reverse-oriented retaining wall provides a solution for a less costly retaining wall structure. This reverse-oriented retaining wall is also easier to install than traditional vertical retaining walls that may have to be installed at greater vertical and lateral distances from the existing roadway. | 11-24-2011 |
20130136538 | SYSTEM AND METHOD FOR INCREASING ROADWAY WIDTH INCORPORATING A REVERSE ORIENTED RETAINING WALL AND SOIL NAIL SUPPPORTS - 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. The cantilevered configuration of the reverse-oriented retaining wall provides a solution for a less costly retaining wall structure. This reverse-oriented retaining wall is also easier to install than traditional vertical retaining walls that may have to be installed at greater vertical and lateral distances from the existing roadway. | 05-30-2013 |
20150040649 | SYSTEM AND METHOD FOR DETERMINING OPTIMAL DESIGN CONDITIONS FOR STRUCTURES INCORPORATING GEOSYTHETICALLY CONFINED SOILS - A system and method are provided for determining optimal design conditions for structures incorporating geosynthetically confined soils. A testing apparatus referred to as a load frame simulates a particular geostructural construction without having to construct a full-scale or near full-scale model. The load frame includes an enclosure made from materials such as concrete block or rigid panels that enclose a plurality of layers of geosynthetic materials and lifts of representative soil and aggregate obtained from the jobsite of the geostructural construction. An upper load plate and lower load plate confine the lifts and geosynthetic materials. A load is applied to the upper load plate in order to compact the contents within the load frame. Both static and vibratory energy can be applied for the loading, thereby closely replicating actual compaction efforts at the job site. Once the contents have been compacted, compaction testing can be conducted to confirm design parameters. | 02-12-2015 |
Patent application number | Description | Published |
20100166505 | SELF-CENTRALIZING SOIL NAIL AND METHOD OF CREATING SUBSURFACE SUPPORT - A subsurface support is provided comprising a soil nail having an outer member and an inner member placed within the outer member. The soil nail includes features that maintain a uniform spaced relationship between the inner and outer members. The soil nail may be installed by drilling or launching through a launching device. The spaced relationship between the inner and outer members may be achieved by crimping the outer member, or by use of an insert installed between the inner and outer members. In other embodiments, the support is made of composite construction materials, and having a self-drilling capability. The soil nail has two primary members, namely, an outer threaded member, and an inner threaded member that is placed through the outer member The outer member is made from fiberglass, and a metallic drill bit is secured to a distal end of the soil nail. The inner member is preferably steel. The dual piece construction provides superior tensile and compressive strength, particularly for applications in which a coupler is used to join outer members to extend a length of the soil nail. A method is also provided to improve pull-out capacity by galvanizing the inner and outer members | 07-01-2010 |
20100166506 | COMPOSITE SELF-DRILLING SOIL NAIL AND METHOD - A subsurface support is provided comprising a soil nail having an outer member and an inner member placed within the outer member. The soil nail includes features that maintain a uniform spaced relationship between the inner and outer members. The soil nail may be installed by drilling or launching through a launching device. The spaced relationship between the inner and outer members may be achieved by crimping the outer member, or by use of an insert installed between the inner and outer members. In other embodiments, the support is made of composite construction materials, and having a self-drilling capability. The soil nail has two primary members, namely, an outer threaded member, and an inner threaded member that is placed through the outer member The outer member is made from fiberglass, and a metallic drill bit is secured to a distal end of the soil nail. The inner member is preferably steel. The dual piece construction provides superior tensile and compressive strength, particularly for applications in which a coupler is used to join outer members to extend a length of the soil nail. A method is also provided to improve pull-out capacity by galvanizing the inner and outer members | 07-01-2010 |
20110286795 | SYSTEM AND METHOD FOR INCREASING ROADWAY WIDTH INCORPORATING A REVERSE ORIENTED RETAINING WALL AND SOIL NAIL SUPPORTS - 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. The cantilevered configuration of the reverse-oriented retaining wall provides a solution for a less costly retaining wall structure. This reverse-oriented retaining wall is also easier to install than traditional vertical retaining walls that may have to be installed at greater vertical and lateral distances from the existing roadway. | 11-24-2011 |
20130136538 | SYSTEM AND METHOD FOR INCREASING ROADWAY WIDTH INCORPORATING A REVERSE ORIENTED RETAINING WALL AND SOIL NAIL SUPPPORTS - 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. The cantilevered configuration of the reverse-oriented retaining wall provides a solution for a less costly retaining wall structure. This reverse-oriented retaining wall is also easier to install than traditional vertical retaining walls that may have to be installed at greater vertical and lateral distances from the existing roadway. | 05-30-2013 |
20140255107 | SELF-CENTRALIZING SOIL NAIL AND METHOD OF CREATING SUBSURFACE SUPPORT - A subsurface support is provided comprising a soil nail having an outer member and an inner member placed within the outer member. The soil nail includes features that maintain a uniform spaced relationship between the inner and outer members. The soil nail may be installed by drilling or launching through a launching device. The spaced relationship between the inner and outer members may be achieved by crimping the outer member, or by use of an insert installed between the inner and outer members. In other embodiments, the support is made of composite construction materials, and having a self-drilling capability. The soil nail has two primary members, namely, an outer threaded member, and an inner threaded member that is placed through the outer member The outer member is made from fiberglass, and a metallic drill bit is secured to a distal end of the soil nail. The inner member is preferably steel. The dual piece construction provides superior tensile and compressive strength, particularly for applications in which a coupler is used to join outer members to extend a length of the soil nail. A method is also provided to improve pull-out capacity by galvanizing the inner and outer members | 09-11-2014 |