50results about How to "Comply with the force characteristics" patented technology

The invention discloses an underground cavity analysis method considering nonlinear softening and dilation characteristics of surrounding rock. According to the method, a hyperbolic softening model based on the characteristics of the Hoek-Brown criterion is established according to the characteristic that the strength parameter of the surrounding rock of a tunnel is weakened with the increasing of the strain of a plastic zone, the model is based on the characteristics of a resultant stress-strain curve of the surrounding rock, and reflects the nonlinear characteristics of the surrounding rock through example verification, the model is applied to analysis for the surrounding rock subjected to strain softening in underground construction, and a new method for an underground cavity analysis is established by considering the nonlinear softening and non-associated flow characteristics as well as a nonlinear failure criterion of a rock mass; the solutions of the stress of the underground cavity, the deformation of the cavity and the radius of the plastic zone are obtained; according to the method disclosed by the invention, the dilation characteristics of the surrounding rock are considered according to a non-associated flow criterion, and with regard to the deformations of the surrounding rock under different plastic models, application example results indicate that the strain dilation of a rock-soil material with dilation and strain softening is considered to be safe.

The present invention discloses one kind of multiple-opening double-cantilever arch bridge in soft foundation and its construction process, and belongs to the field of arch bridge building technology. The multiple-opening double-cantilever arch bridge includes two arch bridge abutments, two edge opening cantilever arch beams located between these two arch bridge abutments and several double-cantilever arch beams connected between these edge opening cantilever arch beams. The present invention has the advantages of short construction period, low construction cost and capacity of preventing side shifting or subsidence of the arch bridge abutments.

The invention relates to an antiskid pile with hollow outer isosceles trapezoid cross section and in unequal interval arrangement. The antiskid pile is formed by pouring reinforced concrete, the cross section of the antiskid pile is a hollow outer isosceles trapezoid, the shape of an inner hollow hole of the cross section is identical with that of the cross section, one side of a longitudinal section of a long bottom side of the isosceles trapezoid serves as the rear end of the pile to bear landslide thrust, rebar cages are arranged in the antiskid pile, relatively dense rebars are arranged in the rebar cage on one side of the rear end of the pile, and few rebars are arranged on one side of the front end of the pile. The antiskid pile adopts an unequal interval arrangement method to form pile interval arrangement layout with a dense middle and two sparse sides. Compared with a pile with a rectangular cross section, the antiskid pile can also bear bigger landslide thrust and has excellent anti-bending performance, but the size of the cross section of the antiskid pile is obviously smaller than that of the antiskid pile with the rectangular cross section, so that cubic amount of concrete pouring and rebar using amount can be greatly reduced, and cost is lowered. The antiskid pile with the hollow outer isosceles trapezoid cross section and in unequal interval arrangement is small in construction section, convenient for mechanical construction, safe and simple in construction and wide in popularization and application prospect.

The invention discloses a composite layering type wind turbine blade and a manufacturing method thereof. A bamboo laminated timber layering with high specific stiffness is adopted for a girder at a blade root section of the blade; a zero-degree single direction layering with high specific strength is adopted for a girder from a blade middle to a blade tip; a lap joint reinforcing section is arranged between the bamboo laminated timber at the blade root section and the zero-degree single direction layering from the blade middle to the blade tip; the layering design of the lap joint reinforcingsection not only ensures the continuity of the stiffness of the blade and meets the integral strength requirement of the blade, which is favorable for the transmission of loading, but also satisfies the split-level requirement of the technology design; and moreover, the oblique plane of the upper surface of the bamboo laminated timber at the lap joint reinforcing section is subjected to corona treatment, the surface roughness of the bamboo laminated timber is increased, and the interface bonding force between glass fiber cloth and bamboo laminated timber is improved. According to the invention, the layering type of the blade is changed, thus the layering design of the blade is corresponding with the force property of the blade, and the strength of the blade root is improved as well as thestrength requirement of the blade from the blade middle to the blade tip is satisfied; and the bamboo laminated timber layering is adopted for the girder at the blade root of the blade, which is corresponding with the requirement of environment protection.

The invention relates to a marine supporting device for an independent liquid tank. The marine supporting device comprises a hull base (1), a heat insulation cushion block (3) and a liquid tank shell (6). An arc-shaped liquid tank saddle (4) is fixedly connected to the bottom of the liquid tank shell. The upper surface of the arc-shaped liquid tank saddle is fixedly connected with the outer surface of the liquid tank shell. The heat insulation cushion block is placed between the lower surface of the arc-shaped liquid tank saddle and the hull base. The arc-shaped liquid tank saddle is coated with an outer liquid tank heat preservation layer (5) located on the periphery of the liquid tank. The section shape of the upper surface of the hull base is identical to the section shape of the lower surface of the arc-shaped liquid tank saddle, and each section shape is a V shape with the axis of the liquid tank shell as the center line and is symmetric left and right. By the adoption of the marine supporting device, when goods such as LNG with a lower boiling point is loaded and transported, a supporting base can be tightly attached to the independent liquid tank shell all the time, and necessary vertical supporting and transverse supporting are provided.

The invention discloses an assembling type large-scale vibrating table test protection device comprising an anchoring structure and a vibrating table protection frame erected on the anchoring structure. The anchoring structure includes concrete anchor blocks and stand columns anchored on the concrete anchor blocks; the vibrating table protection frame includes steel frames fixedly mounted on the stand columns, the steel frames include Bailey truss girders erected on the stand columns and Bailey truss auxiliary beams fixedly mounted on the girders, the Bailey truss auxiliary beams includes horizontal Bailey truss beams and vertical Bailey truss beams, and the horizontal Bailey truss beams and the vertical Bailey truss beams are erected on the Bailey truss girder to form a double cross shaped structure for placing a vibrating table. The assembling type large-scale vibrating table test protection device has the following advantages: according to the invention, a space-enclosed frame is formed on the neck of a test model, and when the test structure collapses, the safety protection device can clamp a test piece in time; the characteristics of simple assembly and hoisting are achieved;since the shuttle space of the safety protection device is large, a layout platform can be provided for a test sensor, and thus testers can conveniently operate and observe test phenomena.

The invention provides a pet walking device. The device comprises a walking component, a bearing component and a warning component, wherein the walking component comprises two walking modules, each walking module comprises a supporting rod and a walking wheel; the bearing component comprises a bearing part, two mounting parts and two coating parts; each bearing part has a mounting area and a bearing area connected with the mounting area; the two mounting parts are respectively connected with two sides of the mounting area; the two coating parts are respectively connected with two sides of the bearing area, each coating part is connected with one mounting part, and the second end of each supporting rod is connected with one mounting part; and the warning component comprises two warning modules, an embedding groove is formed in each supporting rod, and each warning module is accommodated in each embedding groove correspondingly. The pet walking device has a relatively good effect for bearing and coating a pet dog with disabled legs, and can be used for warning automobiles on a road with dark light since light emitted from automobiles is reflected by a reflective layer, so that the safety of pet dogs can be improved.

The invention discloses an autobalance tower type crane, and belongs to the technical field of cranes. The problems that due to the fact that force borne by a balancing arm and a cargo boom are different, the unbalance situation of an existing tower type crane is serious, and both time and labor are consumable when a stock is lifted up can be solved. The autobalance tower type crane comprises a stock located at the top end of a tower body, a balancing arm and a cargo boom are located at the top end of the stock, and located on the two sides of the stock correspondingly, a jib lubbing mechanismis arranged on each of the balancing arm and the cargo boom, a hook is connected to the cargo boom through a steel wire rope, a balance weight object is located on the balancing arm, the cargo boom becomes slender from the end, close to the stock, to the tail part, the jib lubbing mechanism on the balancing arm comprises a power source, the power source is connected with a motor through a horizontal switch, the output end of the motor is connected with the input end of a gear reducer, the output end of the gear reducer is connected with a coiling block, the coiling block is connected with thebalance weight object through the steel wire rope, a travel switch is arranged at the end, away from the stock, of the balancing arm, and the travel switch is connected with the jib lubbing mechanisms on the balancing arms and the cargo booms in series. The autobalance tower type crane can save both time and labor, and is high in safety performance.

The invention discloses a prestressed reinforced concrete sandwich heat insulating roof-panel which is characterized in that the reinforced concrete sandwich warming roof-panel comprises a reinforced bar concrete bottom board 1, a concrete face plate 2, a heat insulating concrete vertical and horizontal rib 3 and light heat insulating sandwich blocks 4 which are embedded in the reinforced bar concrete bottom board 1, the concrete face plate 2 and the heat insulating concrete vertical 3 at interval. The prestressed reinforced concrete sandwich heat insulating roof-panel is also characterized in that reinforced bars in the reinforced bar concrete bottom board 1 are prestressed reinforced bars 5. The heat insulating roof-panel integrates the bearing of the structure and the heat insulation and has the characteristics of light dead-weight, good structural performance, heat insulation and sound insulation, rapid and convenient construction, low cost and the like and is a new green energy-saving roof panel material with excellent cost performance.

The invention relates to an anti-slide pile with an I-shaped cross section. The anti-slide pile with the I-shaped cross section is poured by reinforced concrete. Transverse width at the rear end of the anti-slide pile is larger than that of a common anti-slide pile with a rectangular cross section, so that post-pile soil arch effects are brought into full play, pile center distance between two adjacent anti-slide pile can be increased when the anti-slide piles are disposed on a plane, and the amount of the required anti-slide piles is reduced under the same landslide conditions to reduce cost. The rear end and the front end of the anti-slide pile are arc-shaped, stress concentration damaging the anti-slide pile is prevented from being generated at tips. The anti-slide pile can bear large slope pushing force has good bending resistance. The cross section area of the anti-slide pile is remarkably smaller that of the anti-slide pile with the rectangular cross section, so that concrete quantity and rebar quantity needed are reduced greatly, a large amount of concrete and rebar is saved, and cost is lowered. The anti-slide pile is small in construction section and simple and safe in construction, has promising popularization application prospect and facilitates mechanical construction.

The invention provides a full-period construction method for a flexible reserved floor high-rise building and vehicle depot structure. The method comprises the following steps of Step 1, constructing a first-stage structure: Step 11, constructing a plurality of building pile foundations and a first-stage raft plate; Step 12, constructing a vehicle depot large garage; Step 13, constructing a retaining wall; and Step 14, building brick partition walls after construction; and Step 2, constructing a second-stage structure: Step 21, constructing a second-stage raft plate and a shear wall of the high-rise building; Step 22, constructing a car garage and the remaining shear walls, and constructing the high-rise building; and Step 23, constructing a second-stage cover plate, performing soil covering, then performing greening till the construction is completed. The full-period construction method of the structure comprises a structure reservation scheme for flexibly adjusting the house type of the floor high-rise building and a construction scheme for the later-stage high-rise building, the house type of the later-stage high-rise building can be flexibly adjusted, and the height of the high-rise building is not limited by a conversion structure.