摘要:
Method of forming a concrete slab to reduce or eliminate control joints includes preparing a substantially flat base, overlaying one or more barriers on top of the base, placing a concrete mixture on top of the barrier(s) and base to form a concrete slab, and allowing the concrete to cure without forming control joints. The base is prepared with a flatness of about ±¼ inch over 10 feet. A side edge is prepared along a periphery of the concrete slab by extending a vapor barrier from a bottom surface of the slab up the side edge toward a top surface of the slab and covering the side edge. A plurality of post-tensioning cables are positioned to extend through the slab and configured to compress and assist in controlling accelerated displacement of the concrete slab during curing and shrinkage. The concrete slab is formed of an evenly gradated and low slump concrete having high fiber content, minimized cement content, and maximized size of large aggregate.
摘要:
A ground anchor having an elongated shaft with upper and lower ends, a grooved locking post on the upper end; an threaded auger fixed to the lower end, an engagement area for engaging an external tool, a sleeve mounted over the main shaft, which spins freely, and an attachment member configured to secure one or more of an external lock, chain, rope or cable attached to an external object to thereby anchor the external object when the main shaft is screwed into the ground, and a lock device configured to cover and lock onto the grooved locking post so the attachment member and sleeve cannot be removed, whereby the sleeve covers the main shaft and obstructs access to the main shaft to prevent unwanted persons from removing it.
摘要:
A magnetic vacuum hose coupler. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.
摘要:
A method of manufacturing a plurality of secondary containment panels and assembling and installing the panels in a secondary containment system of an above-ground liquid storage tank or other retention facility includes forming at least one flexible substrate. A liquid impermeable coating is applied by a robotic applicator to the upper surface of the substrate such that an edge segment of the substrate remains uncoated. The coating is applied to the substrate in an indoor enclosure having a flat surface. The coated substrate is delivered to the site of the tank and extended across the ground adjacent to the tank. At least a pair of the substrates are juxtaposed relative to one another such that a first one of the substrate overlaps the uncoated segment of the second substrate to form a seam. An adhesive substance is then applied to the seam to fasten the first and second substrate together.
摘要:
A ground anchor having an elongated shaft with upper and lower ends, a grooved locking post on the upper end; an threaded auger fixed to the lower end, an engagement area for engaging an external tool, a sleeve mounted over the main shaft, which spins freely, and an attachment member configured to secure one or more of an external lock, chain, rope or cable attached to an external object to thereby anchor the external object when the main shaft is screwed into the ground, and a lock device configured to cover and lock onto the grooved locking post so the attachment member and sleeve cannot be removed, whereby the sleeve covers the main shaft and obstructs access to the main shaft to prevent unwanted persons from removing it.
摘要:
A system for locating and tracking an object is provided. The system includes a measuring device configured to determine a property of a paving-related material, a locating device configured to determine a location of the measuring device, a tracking system configured to store tracking information associated with the measuring device and one or more properties determined by the measuring device, and a communications system configured to transfer, to a remote device, the location of the measuring device and the tracking information associated with the measuring device.
摘要:
Methods, systems, and computer program products for locating and tracking objects are disclosed. According to one system, a locating device can be configured to determine a location of an object. According to another system, an identifying device can be configured to determine the identification of an object. Further, a tracking system configured to store tracking information associated with the object. A communications system can be configured to communicate a signal to a remote computer device that identifies the location of the object and includes the tracking information associated with the object.
摘要:
A testing method and apparatus for ground liquefaction and dynamic characteristics in the original position utilizing a boring hole, wherein the dynamic strength and deformation characteristics of a soil layer against a dynamic repetitive load, in an optional position in the ground can be obtained by a simple method. A measuring cell based on a three-chamber construction is used, and upper and lower soil layers (J1, J3) with an intermediate soil layer (J2) therebetween are alternately subjected to a dynamic repetitive load, and what influence there is on the intermediate soil layer (J2) is investigated from the relation between pressure and displacement.
摘要:
An area earthquake defense system is disclosed which uses military planning principles; automated command and control systems; the technology of wave manipulation demonstrated in optical engineering, sonar, and anti-tank weapons and their countermeasures; and proven electromagnetic technology. Deeply buried, specially configured, passive devices attenuate, temporally segment, and redirect earthquake shock waves. Such a system, fully integrated into the local geological structure, can reduce the shock reaching the protected area, and, within that area, channel it away from those structures most difficult to protect with single point measures. This is especially true when the plurality of passive devices is complemented by an automated decision and command loop and dynamically reconfigurable active devices embedded at a variety of depths. Further, within the defended areas those structures enhanced with electro-magnetic levitation systems can be raised from their bases and, by partial or full decoupling, isolated from the shock. Structures with electromagnetic motion control systems can further be protected by having a means for controlling their displacements during the earthquake and for restoring them to their original location on the site despite any lateral translations experienced during the event.
摘要:
An area earthquake defense system is disclosed which uses military planning principles; automated command and control systems; the technology of wave manipulation demonstrated in optical engineering, sonar, and anti-tank weapons and their countermeasures; and proven electromagnetic technology. Deeply buried, specially configured, passive devices attenuate, temporally segment, and redirect earthquake shock waves. Such a system, fully integrated into the local geological structure, can reduce the shock reaching the protected area, and, within that area, channel it away from those structures most difficult to protect with single point measures. This is especially true when the plurality of passive devices is complemented by an automated decision and command loop and dynamically reconfigurable active devices embedded at a variety of depths. Further, within the defended areas those structures enhanced with electro-magnetic levitation systems can be raised from their bases and, by partial or full decoupling, isolated from the shock. Structures with electromagnetic motion control systems can further be protected by having a means for controlling their displacements during the earthquake and for restoring them to their original location on the site despite any lateral translations experienced during the event.