217 results about "Composite construction" patented technology

The invention belongs to the technical field of mining construction, and particularly relates to an artificial roof structure and a construction process thereof. The construction process comprises the steps that S1, anchor rod holes are constructed in the positions, 1 m away from a bottom plate, of two sides of a stope, S2, ore cushion layers with the thickness of 200 mm are laid and leveled, S3, I-shaped steel bottom beams are erected and fixed through round steel anchoring parts and welding base plates, S4, a reinforcing mesh is laid, main ribs and auxiliary ribs are bound in a crossed mode and welded to anchor rods, according to the composite structure design of the double-layer reinforcing mesh, the steel wire mesh and the hanging bar system, a three-dimensional stress system is formed, the bending resistance and the shearing resistance of the false roof are remarkably improved, the problem that a traditional false roof is prone to cracking and sinking is solved, and the false roof has the advantages of being simple in structure, convenient to use, economical and practical. Due to the layered matching design of the full-tailing cemented filling body, the bearing strength is guaranteed, seamless roof contact is achieved, the risk of roof hollowing is reduced, the pressure of stope operation circulation is relieved, the ore removal efficiency is improved, and the mining cost is reduced.

The utility model discloses a bamboo-based composite building profile, comprising a bamboo core layer, wherein the bamboo core layer is composed of hollow round bamboos arranged in a staggered manner according to large and small ends, a bamboo winding layer is arranged on the periphery of the bamboo core layer, the bamboo winding layer is fixedly connected to the bamboo core layer through an adhesive layer, the bamboo winding layer and the bamboo core layer are fixedly connected to form a profile, the bamboo winding layer comprises a multi-layer bamboo strip curtain, the bamboo strip curtain is composed of a plurality of bamboo strips arranged side by side and bonded to a connecting piece, or the bamboo strip curtain is a continuous bamboo strip curtain formed by weaving a plurality of bamboo strips and a connecting piece. The bamboo strips naturally have good mechanical properties of tensile strength along the grain, so as to enhance the bending strength and rigidity of the profile, and greatly improve the bearing capacity of the bamboo-based profile.

The invention relates to the technical field of material preparation, and discloses a nano-composite construction preparation method and system for a high-flexibility display film, and the method comprises the steps: setting a composite construction sequence corresponding to a nano-composite material; calculating the interface coupling bonding strength of the nano composite material in the compounding process, calculating the deformation adaptation coefficient of the display film substrate in the compounding process, and analyzing the dynamic synergistic compounding efficiency of the nano composite material; thermal gradient distribution data and pressure load data of the nanocomposite in the construction process are recorded, the stress relaxation rate in the display film after construction is completed is calculated, the uniform attenuation coefficient of the interlayer structure of the display film is calculated, and the multi-dimensional structure stability performance of the display film is evaluated; and determining a composite gradient distribution strategy of the nano composite material, formulating preparation process parameters of the display film in nano composite construction, and executing composite construction preparation of the nano composite material to obtain a finished product of the high-flexibility display film. According to the invention, the quality stability of the preparation of the high-flexibility display film can be improved.

Embodiments relate to an enhanced method for building walls by primarily reducing the time for assembly. The design is for a molded multi-segment plastic composite construction block that interlocks horizontally, vertically and orthogonally with a clearance-fit, does not require mortar for structural integrity and is self-aligning. The blocks are molded out of natural-fiber reinforced thermoplastic composites with thermal expansion coefficient less than 0.0002 per degree Celsius and compression strength greater than 60 MPa.

The invention relates to the field of slope prevention and control of water conservancy and hydropower engineering, in particular to a method for treating abnormal deformation of an upper-hard and lower-soft extra-high steep transverse slope during a construction period, which comprises the following steps of: constructing a three-dimensional geologic model based on multi-source data, and calibrating mechanical parameters of a rock mass and a structural surface in a manner of combining inversion analysis and field monitoring data; the synergistic effect of different supporting measures is quantified through numerical simulation, and a system treatment scheme is formed. Specific treatment is carried out according to the special failure mechanism of the composite structure with the hard upper portion and the soft lower portion, the progressive extrusion deformation characteristics of the lower soft rock are accurately recognized, the treatment strategy of deep anchoring, soft rock reinforcement and form regulation and control is adopted, anchor cables are adopted for deep reinforcement, consolidation grouting is applied for improving the mechanical property of the soft rock, and form control measures of slope ratio optimization are matched, so that the composite structure is obtained. And a multi-dimensional deformation suppression system is formed. The technical problems that in the existing abnormal deformation treatment process, supporting measures are not appropriate, a supporting scheme is lack of systematicness, and the treatment effect is poor can be solved.

The invention relates to the technical field of prefabricated wallboard construction, in particular to an assembly type prefabricated heat preservation wall and a construction technology thereof.The assembly type prefabricated heat preservation wall is installed on a floor slab, vertical connecting steel bars are reserved on the floor slab, and the assembly type prefabricated heat preservation wall comprises a first prefabricated slab and a second prefabricated slab; the first prefabricated slab and the second prefabricated slab are connected through a steel bar frame, a cast-in-place area is formed between the first prefabricated slab and the second prefabricated slab, and the cast-in-place area is used for being arranged on a vertical connecting steel bar in a sleeving mode. According to the fabricated prefabricated thermal insulation wall, the cast-in-place area is connected with the vertical connecting steel bars reserved on the floor in a sleeving mode, then concrete is poured, a prefabricated-cast-in-place composite structure is formed through the steel bar frame and the prefabricated slabs, rigid connection of nodes is achieved, and the shear resistance and the overturning resistance of the wall and the floor are remarkably improved.

The invention discloses a silicon mullite brick capable of being filled with a thermal insulation material and a production process thereof, and belongs to the technical field of refractory material production. The silicon mullite brick comprises a surface layer, a middle layer and an inner layer from outside to inside, the surface layer contains tabular corundum and silicon carbide micro powder, the middle layer contains mullite hollow balls, pre-sintered kyanite and nano-zirconia, the inner layer contains aluminum oxide hollow balls, floating beads and silicon carbide whiskers, and three-dimensional through pore channels are formed inside the silicon mullite brick. The pore channels are filled with silicon dioxide aerogel and ceramic fiber composite heat insulation materials, and the filling rate is larger than or equal to 85%. The production process comprises the steps of gradient material distribution, composite forming, in-situ foaming, vacuum impregnation strengthening, fluctuation sintering strengthening and the like. Through gradient composite structure design and multi-process cooperation, a three-dimensional functional partition is constructed, high-density filling and structural stability of the heat insulation material are achieved, mechanical strength and heat insulation performance are balanced, thermal shock resistance is remarkably improved, the service life is remarkably prolonged, and a novel refractory material is provided for high-temperature industrial equipment.

The invention discloses a construction method of an assembly type prefabricated steel pipe-pipe pile composite high-strength toughness stand column pile, and belongs to the field of foundation pit supporting. According to the stand column pile construction method, an adopted stand column pile comprises a foundation pile section, a bottom plate section, a stand column section and a supporting section, the construction method comprises the steps of foundation pile section construction, bottom plate section construction, stand column section and supporting section construction, foundation pit excavation and supporting construction and foundation pit bottom plate and main body structure construction, and the foundation pile section is a prefabricated pipe pile; by improving the steel-concrete composite structure of the prefabricated steel pipe pile, the strength and toughness of the pile body of the stand column pile are improved, the structural strength of the stand column section is improved, brittle failure of the stand column pile in the construction process is avoided, holding and pressing construction can be conducted through a static pressure pile machine, and the optimal design of the construction sequence is matched. The construction efficiency of the stand column pile is greatly improved; moreover, the stand column section is assembled by adopting a socket structure, so that 100% recycling can be realized, the construction cost is reduced, and the economical efficiency of the stand column pile is remarkably improved.

The invention discloses a soft soil area film bag sand blowing shortcut composite structure and a construction method, and relates to the technical field of highway engineering building construction shortcuts, the technical scheme is that the soft soil area film bag sand blowing shortcut composite structure comprises a film bag sand layer arranged at the bottom and a ballast layer arranged at the top of the film bag sand layer; the film bag sand layer comprises a third film bag sand layer arranged on the original ground or above the water surface, a first film bag sand layer and a second film bag sand layer, wherein the first film bag sand layer and the second film bag sand layer are arranged on the original ground or below the water surface, and the first film bag sand layer and the second film bag sand layer are filled with film bag green sand in a layered mode according to the water depth. The ballast layer is arranged on the top of the third film bag sand layer. The method has the beneficial effects that the working procedures of drainage, desilting, replacement and filling and the like are reduced, the construction period is shortened, the equipment investment and cost are reduced, and rapid forming of the shortcut is achieved. The film bag and the sand are combined to form a high-bearing-capacity compact block, sedimentation is prevented, the maintenance cost is reduced, and smoothness and progress are guaranteed. The mechanical conveying improves the efficiency, reduces the labor intensity, is free of waste, recoverable in sand, and meets the requirements of green sustainable development.