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169 results about "Lateral expansion" patented technology

Lateral expansion, in economics, is the growth of a business enterprise through the acquisition of similar companies, in the hope of achieving economies of scale or economies of scope. Unchecked lateral expansion can lead to powerful conglomerates or monopolies.

Construction method of blasthole stemming structure for drilling blasting and concrete block structure for method

The invention relates to a construction method of a blasthole stemming structure for drilling blasting and a concrete block structure for the method. The blasthole stemming structure comprises a cylindrical-conical reinforcement built-in concrete block structure, a buffer section and a rock ballast filling body meeting certain grain size requirements, wherein one end of the cylindrical-conical reinforcement built-in concrete block structure is conical while the other end is cylindrical. After shock waves formed after explosion of a blasting cartridge pass the buffer section, concrete blocks on the blocking section generate velocity of movement towards the orifice direction under the action of the buffer section, the rock ballast filling body is squeezed and generates dislocation due to the wedging effect of the upper cone during movement so as to be squeezed and compacted, and bonding power and friction force among particles increase sharply. Meanwhile, the rock ballast filling body generates lateral expansion, however, the squeezed and compacted rock ballast blocks the cylindrical-conical reinforcement built-in concrete block from rushing outwards due to the constraint effect of the hole wall, so that detonation gas is effectively prevented from escaping from the blasthole, acting time of the detonation gas on rock is prolonged, explosive energy is fully utilized, and blasting effect is enhanced.
Owner:WUHAN UNIV

Elastoplastic device for expansion joints in buildings and road engineering

The invention discloses an elastoplastic device for expansion joints in buildings and road engineering. The elastoplastic device comprises a cast-in-place concrete layer and a bituminous concrete pavement layer arranged on the upper end of the cast-in-place concrete layer, wherein the center of the cast-in-place concrete layer is provided with an expansion joint filled with sponges or foams; the center of the bituminous concrete pavement layer is provided with a notch which is filled with expansion elastomers and broken stones and is internally provided with a cover plate; lower expansion bolts are symmetrically arranged around the upper part of the cast-in-place concrete layer; lateral expansion bolts are symmetrically arranged around the inner side of the bituminous concrete pavement layer; and steel bars are arranged between the end parts of the lateral expansion bolts and the lower expansion bolts. The device disclosed by the invention has the advantages of simple structure and reasonable design, and is convenient and rapid in construction; the performance requirements of the expansion joints can be met, special expansion members are not needed to be arranged, and the problem of short service life of other expansion devices under small stroke can be effectively solved; and the device disclosed by the invention has the characteristics of good elasticity and neat and beautiful appearance, and can bear vehicle load.
Owner:西安达盛隔震技术有限公司

Strain type lateral expansion force testing device and measuring method

The invention relates to a strain type lateral expansion force testing device and a measuring method. The strain type lateral expansion force testing device comprises a measuring device, a data collecting device and a loading device. The measuring method comprises the following steps of performing water soaking expansion testing on specimens with same initial wet density states under non-load andnon-lateral strain conditions, and obtaining the expansion limit water content and corresponding dry density of the specimens with same initial wet density states under the condition of stable expansion; performing gradual loading type cementing testing on the specimens with same initial wet density states under the conditions of expansion limit water content and corresponding dry density, measuring the lateral pressure coefficient K0 at different dry densities, and stripping the lateral expansion force from the lateral resultant force. The strain type lateral expansion force testing device and the measuring method have the advantages that the testing method and the device are simple, the operation is convenient, the structure is reasonable, and the manufacturing cost is economical; the problem of stability of expanded soil edge slope after wetting expansion in the long-time expected precise evaluation process of the field is solved, the important design parameters are provided for thedesign of engineering structures and wall back buffer layers in the expanded soil area, and the device and the method are suitable for being popularized and applied in engineering.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Hyper-converged all-in-one machine system, and lateral and longitudinal expansion method thereof

InactiveCN107037985AAvoid storage performance bottlenecksInput/output to record carriersResource allocationExternal storageService provision
The invention provides a hyper-converged all-in-one machine system, and a lateral and longitudinal expansion method thereof. The system comprises an own computing resource, a network resource, an internal storage resource and an external storage resource, wherein the external storage resource is used for longitudinal expansion of storage resources; the computing resource provides a computing power for service; the network resource provides a communication channel for internal resources and provides an external communication channel for lateral expansion of the hyper-converged all-in-one machine system; the internal storage resource and the external storage resource are used for storing data in the hyper-converged system, lateral expansion and longitudinal expansion can be effectively completed; longitudinal expansion is carried out by the longitudinal expansion method of the system in combination with different external storage manners; the cold data are stored in external memory in the manner of cold and hot data hierarchy, the real-time monitoring is carried out on the usage situation of the stored data, cold and hot switching is carried out on the data, a longitudinal expansion node is prevented from becoming a storage performance bottle neck of the hyper-converged all-in-one machine system.
Owner:SUN YAT SEN UNIV
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