45results about How to "Reduce vertical deformation" patented technology

The invention provides an unbonded prestressed reinforced earth construction method and a device thereof. The method comprises the following steps of: preliminarily connecting a reinforcement material with a first-layer baffle plate through an anchor device, and preliminarily fixing the first-layer baffle plate through the reinforcement material; continuously filling earth and compacting till a second layer is laid in the height position of the reinforcement material, laying the unbonded prestressed reinforcement material, and fixing the reinforcement material with a second-layer baffle plate according to the same method with the first layer; sequentially performing the operation till the completion of filling of a whole earth bank or a side slope; and finally applying prestress on the unbonded prestressed reinforcement material of each layer. The device comprises the unbonded prestressed reinforcement material and the anchor device, and the unbonded prestressed reinforcement material and the anchor device are mutually connected. The unbonded prestressed reinforced earth construction method is of a geotechnological reinforcement method with the combination of active and passive ways, and the purposes of increasing the strength of the filled earth and controlling and regulating the vertical deformation of the filled earth can be achieved through the interaction among the reinforcement material, the baffle plates as well as the anchor device and the filled earth.

The invention provides a non-adhesion prestressing reinforcement material. A main stressed part comprises an internal reinforcement material and an outer layer reinforcement material; the internal reinforcement material is arranged inside the outer layer reinforcement material; the outer layer reinforcement material is made of polypropylene or polyvinyl chloride high molecular polymer; the internal reinforcement material is a high-elasticity modulus reinforcement material; and a lubricating agent is filled between the internal reinforcement material and the outer layer reinforcement material. According to the non-adhesion prestressing reinforcement material, the supporting effect of the reinforcement material on a soil body can be improved through the high-elasticity modulus reinforcement material in a tensioning inner layer. Therefore, the constraint of reinforcement belts on the soil body is increased, and the vertical deformation of filled earth is reduced; the non-adhesion prestressing reinforcement material can slide between the inner layer and an outer layer, so that the soil body cannot be driven to move towards the two sides in the tensioning process; and a composite material is formed by the outer layer reinforcement material and the soil body, so that the deformation of the soil body is further constrained. By mutually connecting a secondary stressed part with the main stressed part, the deformation of the soil body among the reinforcement belts on the same layer can be coordinated.

Disclosed is a substrate processing apparatus, including: a processing chamber to accommodate a plurality of substrates therein in such a way that the substrate are vertically stacked; a gas supply system to supply processing gas into the processing chamber; an exhaust system to exhaust an atmosphere from the processing chamber; at least a pair of electrodes made of flexible member extending in a stacking direction of the substrates to activate the processing gas; and protecting tubes to accommodate the electrodes therein, wherein each of the protecting tubes is provided with a bent portion at a higher position than an uppermost substrate, and a tip end of each of the electrodes is located on a tip end side of each of the protecting tubes over the bent portion.

The invention discloses an integral construction method of the straight section of the side span of a high-pier continuous rigid frame bridge with a hanging basket combined with a cover beam support. The steel bars are bound and formed at one time, and the pouring is carried out twice; The remaining solid section of the second pouring; most of the solid section of the second pouring falls on the cover beam, and a small part falls on the hanging basket. The invention has the advantages of being able to simplify the construction procedure, save the construction period, save the construction cost and the like.

The invention relates to a floor system composed of GRC hollow box body composite boards and a construction method thereof. The floor system composed of the GRC hollow box body composite boards is formed by mutually connecting special-shaped composite columns, composite beams and composite boards, wherein the special-shaped composite columns are special-shaped composite columns with internally installed shape steel or FRP profiles, the composite beams are sunken type shape steel or FRP profile concrete composite beams, and the composite boards are composite boards with prestressed hidden beamsand equipped with GRC hollow box bodies; the GRC hollow box body composite boards with bidirectional prestressed hidden beams are composed of upper bidirectional slab reinforcements, lower bidirectional slab reinforcements, the bidirectional prestressed hidden beams, the GRC hollow box bodies and GRC hollow box body vertical fixing devices. According to the floor system composed of the GRC hollowbox body composite boards and the construction method thereof, the GRC hollow box bodies are arranged in floors, sound transmitting routes can be cut off through the GRC hollow box bodies evenly arranged in the floors, a good sound insulation effect is realized, and the problem of noise pollution caused by the poor sound insulation effect between the floors is solved.

The invention discloses a carbon nanotube / fiber concrete for 3D printing and a preparation method thereof. The carbon nanotube / fiber concrete is composed of following raw materials in parts by weight:6.8 to 8.6 parts of cement, 3.0 to 6.7 parts of mineral powder, 1.3 to 2.7 parts of silica fume, 4.7 to 13.8 parts of quartz sand, 2.0 to 4.1 parts of water, 0.2 to 0.5 part of water reducer, 0 to 0.03 part of retarder, 0 to 0.004 part of thixotropic agent, 0.05 to 0.25 part of fibers, 0.0008 to 0.008 part of carbon nanotube, and 0.003 to 0.16 part of dispersant. The provided carbon nanotube / fiber concrete has the advantages of proper initial setting time, proper final setting time, high compression strength, high bending strength, good toughness, good workability, and excellent thixotropic property; layers can be effectively bonded, during the stacking process, deformation and collapse are avoided; the setting and thixotropic properties of the concrete can be precisely designed accordingto the needs of engineering; and different needs such as printing speed, structures, and the like, can be satisfied.

The invention relates to a reinforcement combination of a suction caisson foundation and a cement-soil mixing pile. The invention includes a suction caisson foundation. The interior and exterior of the suction caisson foundation are provided with cement-soil mixing pile reinforcements. The suction caisson foundation includes a cylinder Body, the lower end of the cylinder is open, the upper end of the cylinder is provided with a cover, the cover is provided with a fairlead and a drain valve, and the drain valve communicates with the inner cavity of the cylinder; the present invention uses a suction type The foundation treatment before the caisson foundation sinks makes the suction caisson foundation and the cement-soil mixing pile form a whole, so as to improve the vertical and horizontal bearing capacity of the suction caisson foundation.