A roadway segment includes a body having a length along a direction of travel, a width along a width axis, and top and bottom halves along a depth axis. The segment also includes a strain sensor array with one or more optical fiber cables embedded in the bottom half of the body. The strain sensor array includes vehicle-strain sensors configured to detect strain on the body resulting from vehicles traveling across the top surface. The segment also includes a processor that operates the plurality of vehicle-strain sensors at a resolution of not greater than one picometer (1 pm). Any segments of the optical fiber cable(s) that intersect are separated from one another depth wise by at least two-tenths of an inch (0.2 in.). Each of the sensors is separated from each other along the width axis by at least two inches (2 in.).
E01C 11/00 - CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR - Details of pavings
G01P 3/36 - Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
G01G 19/02 - Weighing apparatus or methods adapted for special purposes not provided for in groups for weighing wheeled or rolling bodies, e.g. vehicles
G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
G01L 17/00 - Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
G01G 19/52 - Weighing apparatus combined with other objects, e.g. with furniture
G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
G01G 3/12 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
E01C 5/00 - Pavings made of prefabricated single units
A modular pavement slab comprises a body, a strain sensor array, and a sensor processor. The body includes a top surface, a bottom surface, and four side surfaces. The modular pavement slab is configured to be coupled to at least one other modular pavement slab via connectors along at least one of the side surfaces. The strain sensor array is retained within the body and is configured to detect a plurality of strains on the body resulting from vehicular traffic across the top surface of the body. The sensor processor is in communication with the strain sensor array. The sensor processor is configured to communicate input signals to the strain sensor array, receive output signals from the strain sensor array, and determine a plurality of time-varying strain values, each strain value indicating a strain experienced over time by a successive one of a plurality of regions of the body.
E01C 11/00 - CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR - Details of pavings
G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
G01L 17/00 - Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
G01G 3/12 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
G01P 3/36 - Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
E01C 5/00 - Pavings made of prefabricated single units
G01G 19/02 - Weighing apparatus or methods adapted for special purposes not provided for in groups for weighing wheeled or rolling bodies, e.g. vehicles
G01G 19/52 - Weighing apparatus combined with other objects, e.g. with furniture
3.
Tool for forming a cavity in a modular pavement slab and method of fabricating pavement slabs
A modular pavement slab including a paving material set around a plurality of forming tools and defining a side face and a top surface. Each of the forming tools includes an elongate body extending along a longitudinal axis and having a sidewall exterior surface configured for removal of the elongate body through the side face. Each of the forming tools also includes a riser releasably coupled to the elongate body and extending in a direction noncollinear to the corresponding longitudinal axis.
A modular pavement slab comprises a body, a strain sensor array, and a sensor processor. The body includes a top surface, a bottom surface, and four side surfaces. The modular pavement slab is configured to be coupled to at least one other modular pavement slab via connectors along at least one of the side surfaces. The strain sensor array is retained within the body and is configured to detect a plurality of strains on the body resulting from vehicular traffic across the top surface of the body. The sensor processor is in communication with the strain sensor array. The sensor processor is configured to communicate input signals to the strain sensor array, receive output signals from the strain sensor array, and determine a plurality of time-varying strain values, each strain value indicating a strain experienced over time by a successive one of a plurality of regions of the body.
G01L 17/00 - Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
E01C 11/00 - CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR - Details of pavings
G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
G01G 3/12 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
G01P 3/36 - Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
E01C 5/00 - Pavings made of prefabricated single units
G01G 19/02 - Weighing apparatus or methods adapted for special purposes not provided for in groups for weighing wheeled or rolling bodies, e.g. vehicles
G01G 19/52 - Weighing apparatus combined with other objects, e.g. with furniture
5.
Tool for forming a cavity in a modular pavement slab and method of fabricating pavement slabs
A form for forming a modular pavement slab with long and short cavities alternatingly formed around its periphery includes a header and a plurality of short and long forming tools. The header includes an inner vertical surface that defines a portion of the periphery of the modular pavement slab. The short forming tool includes an elongate body defining a longitudinal axis and having a proximal end positioned against the inner vertical surface of the header. The elongate body has a longitudinal bore therethrough and a riser bore defining an axis that is noncollinear to the longitudinal axis. A riser is releasably coupled to the riser bore. The long forming tool is substantially similar to the short forming tool. The elongate body, however, is longer than the short forming tool and includes two riser bores. A riser is releasably coupled to each respective riser bore.
E01C 19/50 - Removable forms or shutterings for road-building purposes; Devices or arrangements for forming individual paving elements, e.g. kerbs, in situ
A modular pavement slab comprises a body, a strain sensor array, and a sensor processor. The body includes a top surface, a bottom surface, and four side surfaces. The modular pavement slab is configured to be coupled to at least one other modular pavement slab via connectors along at least one of the side surfaces. The strain sensor array is retained within the body and is configured to detect a plurality of strains on the body resulting from vehicular traffic across the top surface of the body. The sensor processor is in communication with the strain sensor array. The sensor processor is configured to communicate input signals to the strain sensor array, receive output signals from the strain sensor array, and determine a plurality of time-varying strain values, each strain value indicating a strain experienced over time by a successive one of a plurality of regions of the body.
E01C 11/00 - CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR - Details of pavings
G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
G01L 17/00 - Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
G01G 3/12 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
G01P 3/36 - Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
E01C 5/00 - Pavings made of prefabricated single units
G01G 19/02 - Weighing apparatus or methods adapted for special purposes not provided for in groups for weighing wheeled or rolling bodies, e.g. vehicles
G01G 19/52 - Weighing apparatus combined with other objects, e.g. with furniture
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
A modular pavement slab comprises a body, a strain sensor array, and a sensor processor. The body includes a top surface, a bottom surface, and four side surfaces. The modular pavement slab is configured to be coupled to at least one other modular pavement slab via connectors along at least one of the side surfaces. The strain sensor array is retained within the body and is configured to detect a plurality of strains on the body resulting from vehicular traffic across the top surface of the body. The sensor processor is in communication with the strain sensor array. The sensor processor is configured to communicate input signals to the strain sensor array, receive output signals from the strain sensor array, and determine a plurality of time-varying strain values, each strain value indicating a strain experienced over time by a successive one of a plurality of regions of the body.
E01C 11/00 - CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR - Details of pavings
G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
G01L 17/00 - Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
G01G 3/12 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
G01P 3/36 - Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
E01C 5/00 - Pavings made of prefabricated single units
G01G 19/02 - Weighing apparatus or methods adapted for special purposes not provided for in groups for weighing wheeled or rolling bodies, e.g. vehicles
A removable and serviceable paving apparatus including an access port for providing access to the interior of the slab. The access port is operable to improve access to components of the paving system prior to, during, and/or after installation. The paving apparatus further includes a removable fastener for improving removability and serviceability. The removable fastener attaches the paving apparatus to its neighboring structures to form a paving surface, may be disengaged from the neighboring structures for removal, repair and/or service of the paving apparatus, and may be re-engaged upon re-installation of the paving apparatus.
E01C 11/00 - CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR - Details of pavings
E01C 5/16 - Pavings made of prefabricated single units made of metallic units
E01C 5/00 - Pavings made of prefabricated single units
E01C 9/00 - Special pavings; Pavings for special parts of roads or airfields
A prefabricated paving slab includes specialized combinations of substantially vertical passages and cavities to enable “drop in” installation. The paving slab may include retractable coupling rods aligned using spacers having seating surfaces and alignment surfaces. Cavities of the paving slab, each configured for receiving a coupling rod, preferably are arranged in orientation(s) and pattern(s) selected for receiving and transferring the stresses of loads travelling in a pre-determined direction.
A removable and serviceable paving apparatus including an access port for providing access to the interior of the slab. The access port is operable to improve access to components of the paving system prior to, during, and/or after installation. The paving apparatus further includes a removable fastener for improving removability and serviceability. The removable fastener attaches the paving apparatus to its neighboring structures to form a paving surface, may be disengaged from the neighboring structures for removal, repair and/or service of the paving apparatus, and may be re-engaged upon re-installation of the paving apparatus.
E01C 5/06 - Pavings made of prefabricated single units made of units with cement or like binders
E01C 9/00 - Special pavings; Pavings for special parts of roads or airfields
E01C 11/00 - CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR - Details of pavings
E01C 5/00 - Pavings made of prefabricated single units
E01C 5/16 - Pavings made of prefabricated single units made of metallic units
A removable and serviceable paving apparatus including an access port for providing access to the interior of the slab. The access port is operable to improve access to components of the paving system prior to, during, and/or after installation. The paving apparatus further includes a removable fastener for improving removability and serviceability. The removable fastener attaches the paving apparatus to its neighboring structures to form a paving surface, may be disengaged from the neighboring structures for removal, repair and/or service of the paving apparatus, and may be re-engaged upon re-installation of the paving apparatus.
E01C 5/00 - Pavings made of prefabricated single units
E01C 5/06 - Pavings made of prefabricated single units made of units with cement or like binders
E01C 9/00 - Special pavings; Pavings for special parts of roads or airfields
E01C 11/00 - CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR - Details of pavings
E01C 5/16 - Pavings made of prefabricated single units made of metallic units
patents