30results about How to "Strong construction efficiency" patented technology

The invention discloses a rear-embedded film bag-type umbrella-shaped expansion tip used for pre-reaming and a construction method thereof. The rear-embedded film bag-type umbrella-shaped expansion tip used for pre-reaming comprises an umbrella-shaped expansion body device, a plurality of anchor bars penetrating through the umbrella-shaped expansion body device and a grouting pipe II. The umbrella-shaped expansion body device is sleeved with a film bag. A grout outlet of the grouting pipe is located in the film bag. A bar drawing disc, an umbrella-shaped folding rod set and a bar penetration disc are sequentially arranged in the umbrella-shaped expansion body device from front to back. By adoption of the rear-embedded film bag-type umbrella-shaped expansion tip used for pre-reaming and a construction method thereof, the problems that the work of rotary-jetting hole cleaning in a hard clay bed is complex and high in labor and machine consumption, mud in fractures of fracture-developed rock mass flows back into the umbrella-shaped expansion tip and consequentially affects the elements and strength of a grouting consolidated body, and the construction efficiency is reduced due to theadoption of the umbrella-shaped tip technique and the rotary jetting technique for drilling and reaming and synchronous carrying of the umbrella-shaped expansion tip are solved.

The invention discloses a construction method of constructing a beam-column joint using a ring beam, and relates to the technical filed of building construction. The construction method aims at solving the problems that the construction technology of rebar traversing in the position of the joint of the beam-column joint is complicated in an existing reverse building method, and harmful effect is caused to the joint structure when adjusting an original rebar structure on site. The construction method comprises the steps that 1 construction is conducted to form a concrete filled steel tubular column in the reverse building method, and a ring beam bottom cast is fixed to a bent surrounding the concrete filled steel tubular column; 2 multiple first U-shaped stirrups, ring beam bottom bars and lower rebars are erected in radial direction supported by the ring beam bottom cast; 3 multiple ring beam waist bars and multiple frame beam waist rebars are erected in the longitudinal direction of the axis of the concrete filled steel tubular column; 4 ring beam far bars and second U-shaped stirrups are erected, the first U-shaped stirrups and the second U-shaped stirrups can be put together and erected to form first annular stirrups, and the first annular stirrups are enclosed and fixed to the outer sides of the ring beam bottom bars, the ring beam waist bars and the ring beam face bars; fixing side formworks are installed, concreting is conducted, when a designed strength is reached, the formworks are removed, and construction of the beam-column joint is completed.

The invention discloses an automatic monitoring device for slope displacement, and the device comprises an inclination measuring pipe, wherein the top of the inclination measuring pipe is provided with a rotary coder. The rotary coder is fixed, and is connected with a measurement line. The measurement line can extend to the bottom of the inclination measuring pipe from the top of the inclination measuring pipe. The rotary coder measures the displacement of a slope on the Z axis through the measurement line, and the rotary coder is connected with a data receiver. The displacement data measured by the rotary coder on the Z axis is transmitted to the data receiver. The invention also discloses an application method. The device can measure the deep displacement of the slope, can reflect the change condition of the displacement of the slope in a better manner, provides a better instruction for the monitoring warning, is higher in usability, and is wider in application range.

The invention relates to a flashing structure construction process, in particular to a building roof parapet wall flashing construction process. The building roof parapet wall flashing construction process comprises the following steps that step one, a flashing wall body of a reinforced concrete structure is poured on a building roof; step two, a waterproof roll is paved and pasted on the inner facades of the roof and the flashing wall body to form a waterproof layer, and the upper end of the waterproof roll is subjected to head retraction treatment; step three, a protective brick wall is laid on the outer facade of the waterproof layer through solid bricks, the inner facade of the protective brick wall is tightly attached to the waterproof roll, and the waterproof roll is tightly pressed on the flashing wall body, wherein the protective brick wall is no larger than the flashing wall body; and step four, a parapet wall is laid on the flashing wall body through solid bricks on the basis of the top of the flashing wall body, wherein the thickness of the wall body of the parapet wall is equal to the distance between the outer facade of the flashing wall body and the outer facade of the protective brick wall. A flashing structure built through the building roof parapet wall flashing construction process has the advantages of being resistant to cracking and falling-off and long in guarantee period and is convenient to construct and low in cost, and materials are convenient to obtain.

The invention discloses a textile reinforced concrete (TRC) tube restraining reinforced concrete column which is characterized in that a TRC tube is prefabricated, the TRC tube is installed at a construction site, a reinforced cage is installed, concrete is poured, and the TRC tube restraining reinforced concrete column is formed. The TRC tube restraining reinforced concrete column is a novel assembled integrated type structure with the structure and a template integrated. The TRC tube restraining reinforced concrete column has the advantages that the characteristics of corrosion resistance, fire resistance and high thin wall intensity of the TRC are completely utilized, spiral stirrups are combined to increase restraint on the core concrete, and bearing capacity and anti-seismic performance of construction members are improved remarkably. The TRC tube is not only a construction template, but also a constituent part of the structure to join in work together, so that the TRC tube facilitates saving of large quantities of templates. The TRC tube restraining reinforced concrete column has the advantages of being simple in structure, convenient to construct, high in construction efficiency, low in cost, high in intensity, good in anti-seismic performance, fire-proof, durable and the like. Meanwhile, the TRC tube restraining reinforced concrete column facilitates saving of resources and energy sources and promotes development of building industrialization.

The invention discloses a pavement multistage rubblization construction method. The method comprises the following steps: preparing before crushing construction; crushing the plain cement concrete panel, and integrally crushing the pavement; locally crushing local large concrete blocks on the surface of the rubblization layer; conducting breaking construction on the breaking position of the plaincement concrete slab body; backfilling graded broken stones and compacting; testing the rebound modulus of the top surface of the rubblization layer; comparing deflection average values before and after crushing; conducting crushing construction on the double-layer reinforced cement panel, and conducting punching presplitting through hydraulic punching equipment; integrally crushing the pavement;locally crushing local large concrete blocks on the surface of the rubblization layer; backfilling graded broken stones and compacting; testing the rebound modulus of the top surface of the rubblization layer; comparing deflection average values before and after crushing; and carrying out final subsequent processing. The construction process is suitable for the transformation process of most of old concrete pavements, the construction speed is high, the construction efficiency is high, important joints are subjected to strength reinforcement, and the overall construction cost is low.

The invention discloses a high and large concrete formwork reinforcing system. The high and large concrete formwork reinforcing system comprises two first channel steels, second channel steels, woodenboards, a steel formwork and split bolts. The edge portion of the steel formwork is provided with reinforced edges. The wooden boards are vertically arranged on the periphery of the steel formwork atintervals. The two opposite sides of the periphery of the wooden boards are transversely provided with the two first channel steels. The two ends of the two first channel steels are wrapped through fixed blocks. The two first channel steels are fixed through first fixed plates. The second channel steels are transversely arranged on the other two sides of the periphery of the wooden boards. The second channel steels are inserted in the gap between the two first channel steels. The second channel steels are fixed through second fixed plates. The corresponding positions of the wooden boards arefurther reinforced through split bolts. Each split bolt comprises gaskets, a cast steel nut and a screw rod, wherein the gaskets include the first gasket and the second gasket; the first gasket is square, and the second gasket is arc-shaped. The first gaskets are arranged on the corresponding sides of the first channel steels, and the second gaskets are arranged on the corresponding sides of the second channel steels. The high and large concrete formwork reinforcing system effectively improves the appearance quality and has high practicality.

The invention discloses a high strength and toughness magnesium alloy material construction template and a preparation method thereof. The high strength and toughness magnesium alloy material construction template includes: by mass, 6.6%-7.4% of aluminum, 1.7%-2.4% of tin, 0.15%-0.35% of manganese, less than or equal to 0.003% of iron, less than or equal to 0.02% of silicon, less than or equal to0.002% of nickel and the balance magnesium. The preparation method includes S1 sand blowing preheating, S2 smelting, S3 vacuum die-casting and S4 solid solution treatment. The magnesium alloy materialconstruction template obtained by the invention has the characteristics of high strength, good toughness, light weight, large plate surface width, integral molding without welding, convenient construction, long service life, corrosion resistance, energy saving, environmentally friendly, high turnover times, high construction quality and high construction efficiency; and the preparation method optimizes a vacuum die-casting process and a solid solution treatment process, and can effectively ensure the mechanical properties of products.

The invention provides a post-cast strip pouring supporting system and a post-cast strip pouring construction method, and belongs to the technical field of rail engineering. The post-cast strip pouring supporting system comprises a limiting side mold, an inserting plate and a supporting assembly. Technical effects are that: before the self-compacting concrete filling layer is poured, an insertingplate is arranged on the post-cast strip to block the previous self-compacting concrete filling layer, and the post-cast strip and the lower space of the next track plate form a communicating structure; when the post-cast strip is poured, pouring of the self-compacting concrete filling layer is synchronously achieved, pouring does not need to be conducted after the self-compacting concrete fillinglayer meets the strength requirement; the time difference between the post-cast strip and the next track plate is reduced, the construction efficiency is improved, and continuous line production canbe achieved; and meanwhile, the limiting side molds and the supporting assemblies are used for achieving position fixing and position adjusting of the inserting plates, the supporting assemblies can avoid steel bars between the adjacent track plates, the operability is high, the problem that a traditional end mold is difficult to take out is solved, the dismounting and mounting are easy and convenient, the turnover rate is high, and the construction difficulty is reduced.

The invention discloses a soft soil foundation diversion canal construction method for taking water from rivers. The construction method comprises the following steps: (1) a soil retaining support structure formed by mutual occlusion of occluded cast-in-place piles is utilized; (2) the top ends of left bank cast-in-place piles and the top ends of right bank cast-in-place piles are connected into a whole through concrete top beams; (3) the left bank cast-in-place piles and the right bank cast-in-place piles are supported by using concrete diagonal supporting beams to prevent soil bodies on the two sides from moving inwards; (4) traffic bridges are arranged at the tops of the cast-in-place piles, and a frame structure type (through-road) diversion canal is formed through combination; and (5) excavation of a foundation pit between the cast-in-place piles is conducted, and finally bottom plate mold bag concrete construction is conducted. According to the construction method, the construction operation method that water is taken in the river, the occupied construction space is small, and a temporary construction cofferdam does not need to be built is achieved, the pile foundation and the traffic bridges are combined for design and construction, the construction speed is high, the construction period is shortened, the construction method is suitable for soft soil foundations, safety and reliability are achieved, and investment is saved.

The invention relates to the technical field of engineering construction, in particular to a tunnel vacuum sewage discharge system and a sewage discharge method. The system comprises a suction mechanism and a sewage discharge mechanism, the sewage discharge mechanism comprises a sewage discharge tank and a pressure regulating pipeline, a vacuum port is formed in a sewage tank, and a sewage inlet and a sewage discharge port are formed in the bottom of the sewage discharge tank; the suction mechanism comprises a sewage filtering device disposed at a water accumulated position of a tunnel and a vacuum pump connected to the vacuum port through the vacuum pipeline, the sewage filtering device is communicated with the sewage inlet through a sewage treatment pipeline, a vacuum regulating valve isarranged on the vacuum pipeline, and a sewage control valve is arranged on the sewage treatment pipeline; the sewage discharge port is connected to a muck transport vehicle or an external sewage discharge pipeline through the sewage discharge pipeline, and the sewage discharge pipeline is provided with the sewage discharge valve. The system has novel and reasonable design and strong sewage absorption ability, automatically discharges sewage under the participation of a control system, reduces the loss of consumable parts, achieves rapid sewage discharge, and improves construction efficiency.

The invention provides a method for carrying out equipment foundation construction by isolating sludge. The method comprises the steps of sinking a sludge isolating piece to a preset height of an outer ring at a pre-construction position of an equipment foundation so as to extrude and isolate sludge around the pre-construction position of the equipment foundation through the sludge isolating piece; removing earthwork in the sludge isolating piece, and pouring concrete at the bottom of the sludge isolating piece to form a concrete cushion layer so as to seal the bottom of the sludge isolating piece; pouring the equipment foundation on the concrete cushion layer in the sludge isolating piece; and after the strength of the equipment foundation is larger than the threshold value, hoisting outthe sludge isolating piece. Sludge is extruded and isolated through the sludge isolating piece, and the method is timely, simple, convenient, rapid, good in safety effect, capable of saving cost, highin applicability and capable of being reused after being hoisted and placed.

The invention relates to a mounting method of steel structure workshop foundation bolts, in particular to a rapid mounting method of the steel structure workshop foundation bolts. The rapid mounting method solves the problem of low construction efficiency in the installation process of existing steel structure workshop foundation bolts. The rapid mounting method includes the following steps: adopting upper portion bamboo plywood and lower portion bamboo plywood, enabling all the steel structure workshop foundation bolts which are contained in a foundation upright column steel reinforcement cage to penetrate through locating holes in the upper portion bamboo plywood and the lower portion bamboo plywood, welding lower portion horizontally-fixed reinforcing steel bars to every row of foundation bolts in a perpendicular mode, welding lower portion vertically-fixed reinforcing steel bars to the middles of opposite foundation bolts in two rows of the foundation bolts in a perpendicular mode, arranging the upper portion horizontally-fixed reinforcing steel bars and the lower portion vertically-fixed reinforcing steel bars which are fixed on the foundation bolts on the upper portion bamboo plywood, then welding the upper portion horizontally-fixed reinforcing steel bars and the lower portion vertically-fixed reinforcing steel bars to main ribs in the foundation upright column steel reinforcement cage, and dismantling the upper portion bamboo plywood. The rapid mounting method is high in construction efficiency, and can be widely applied to installation of the steel structure workshop foundation bolts.