39results about How to "Construction impact" patented technology

A multi-platform enclosure structure, which is enclosed in the soil around the foundation pit, includes an outer enclosure, at least one inner enclosure and a tie device between the two, wherein the inner enclosure is low, Located on the inner ring of the foundation pit, the outer enclosure is high and located on the outer ring of the foundation pit, forming a stepped shape in the interior of the outer height; the outer enclosure is double-layered, and the inner enclosure is single-layer. In the present invention, by setting up multi-layer enclosure devices, the inner layer enclosure device forms internal support for the outer layer enclosure device while protecting the foundation pit, avoiding the setting of supports in the foundation pit, improving the safety of foundation pit construction, avoiding the The impact of foundation pit support on the construction of superstructures can serve multiple purposes. It provides a reliable and effective support structure and its construction method for the support of ultra-deep foundation pits. It can be widely used in large deep foundation pits, especially ultra-deep foundation pits. Support for deep foundation pits.

The invention discloses an intelligent high-altitude hanging basket comprising a hanging basket body. The hanging basket body is of a cuboid frame structure and comprises a left supporting frame, a right supporting frame, a rotating motor, a rain awning, four monitoring devices, an alarming device, a folding chair, a control box and an emergency box; an anti-collision plate and buffer springs are arranged at the bottom of the hanging basket body; a rear anti-collision plate and rear buffer springs are mounted on the rear side of the hanging basket body; and six telescopic type powerful suction discs are further arranged. Through the left supporting frame, the right supporting frame and the rain awning, the situation that workers are directly exposed to sun and rain is avoided; through the six telescopic suction discs, the situation that construction and safety of the workers are affected by shaking is avoided; the monitoring devices are mounted on a guardrail, so that the using efficiency and safety of the electric hanging basket are increased; a light beam interruption type sensor and the alarming device are additionally mounted on the guardrail, so that the workers are safer; and through sensor modules, a controller and a wireless communication module in the control box, intelligent adjusting and monitoring functions are achieved.

The invention discloses a flattening device for a geogrid. The flattening device comprises a partition plate, a supporting frame and an operation chamber are fixedly installed on the outer surface ofthe upper end of the partition plate, and the operation chamber is located on the outer surface of one side of the supporting frame; a transparent observation window is inlaid in the outer surface ofthe front end of the operation chamber, and a hydraulic cylinder is fixedly arranged at the middle position of the outer surface of the upper end of the supporting frame; an extruding plate is arranged on the inner side of the supporting frame in a sliding mode, and a base plate is fixedly arranged right below the extruding plate; and two sets of supporting legs, a first connecting plate and a second connecting plate are fixedly installed at the corners of the outer surface of the bottom end of the partition plate correspondingly, and the first connecting plate and the second connecting plateare located at the front ends of the two sets of supporting legs. The flattening device for the geogrid can be used for flattening the whole geogrid, and the two ends of the geogrid can be independently extruded, so that the flatness of the geogrid is better, the construction personnel can conveniently conduct construction, the geogrid can be well fixed, and the extrusion effect is better.

The invention discloses a bearing power free earthquake proof steel support system, which is formed by superposition of a plurality of splayed racking prop units comprising steel columns, steel beams, steel racking props, steel beam brackets, bolts, steel shims, support brackets and support joints, wherein, the bottoms of two steel racking props are connected with junctions of lower ends of two steel columns and the steel beams via the support joints; upper ends of two steel racking props are provided with the support brackets and are connected with sides of the steel beam brackets welded under the steel beams through the bolts; bolt holes on the steel beam brackets are elliptical holes with the vertical direction as prolate axes; two ends of the steel beams are connected with upper ends of the steel columns via the support joints; and the steel shims are arranged between the support brackets and the steel column brackets. In the invention, a hundred percent bearing power and rigidityof the steel racking props are used to resist the effect of horizontal earthquake without influencing the progress of engineering construction, and the materials can be obtained from local resources.The bearing power free earthquake proof steel support system has the characteristics of good performance of earthquake proof, high ductility, full energy consumption hysteresitic loop and so on, and is an excellent earthquake proof energy consumption component.

The application discloses a method and device for automatic monitoring of ventilation fluid velocity data in curved tunnel construction. The method includes: setting a fluid velocity monitoring array on the support structure of the curved tunnel. The fluid velocity detection array is composed of a plurality of fluid velocity detection units. The fluid velocity detection unit is telescopically arranged in the support structure; the fluid velocity monitoring array is used to collect the fluid velocity at multiple places in the cross-section of the curved tunnel. When collecting, multiple fluid velocity detection units protrude from the support structure; according to the curve The fluid velocity of the tunnel cross-section draws the actual fluid velocity distribution diagram of the curved tunnel cross-section; the curve tunnel is judged according to the minimum fluid velocity, the maximum fluid velocity and the fluid velocity distribution diagram of the curved tunnel cross-section monitored by multiple fluid velocity detection units Whether the fluid velocity meets the construction standard. The monitoring of the fluid velocity will not affect the tunnel construction, and it can accurately and quickly judge whether the fluid velocity of the tunnel meets the construction standards.

The invention provides a sump leakage sealing device and a sump leakage sealing method, the sealing device comprises: a waterproof wall, a sealing bottom plate and a sealing side plate; wherein the sealing side plate is arranged on The top of the blocking bottom plate is arranged along the entire circumference of the outer edge of the blocking bottom plate to form a sealing groove; the blocking bottom plate is arranged on the bottom wall of the sump, and the outer edge of the blocking bottom plate and the side of the sump The walls are arranged at intervals, so that the first annular structure is formed between the blocking side plate and the side wall of the sump; the waterproof wall is arranged along the entire circumference of the side wall of the sump in the sump, and the sealing The side panels are embedded in the waterproof wall. The present invention effectively resists the water pressure generated by the penetration and upwelling of groundwater through the sealing groove; and a waterproof wall with the sealing side plate embedded in it is set on the inner wall of the sump, and combined with the setting of the sealing groove, the collection can be managed permanently. The bottom plate and side wall of the puddle leak, thereby avoiding repeated repairs to the leakage, and effectively solving the problem of poor repair effect.

The invention relates to a scaffold base, in particular to a scaffold base for a building and with a function of facilitating passageway construction. The scaffold base for the building and with the function of facilitating passageway construction achieves the technical purposes that a scaffold is conveniently adjusted to the horizontal state and can be fixed. According to the technical scheme, the scaffold base for the building and with the function of facilitating passageway construction comprises screw rods, first nuts, first guide sleeves, first disc-shaped bolts, transverse rods, bearingbases, a lead screw, a second nut, a rocker rod, slide rods, slide sleeves and the like; the first nuts and the first guide sleeves are arranged on the screw rods at the front and rear sides, and thefirst nuts are located above the first guide sleeves. According to the scaffold base, by observing horizontal bubbles, whether hollow sleeves are in a horizontal state or not can be judged, and thus workers can conveniently adjust the scaffold to the horizontal state; a braking mechanism can fix the scaffold base, and the workers are prevented from moving during construction; fixing mechanisms canfix the scaffold, and the situation that the construction by the workers is influenced when the scaffold shakes is avoided.

The invention provides a composite concrete crack-resisting agent, and belongs to the technical field of building materials, the crack-resisting agent is prepared from the following components in percentage by mass: 3-7% of polypropylene glycol, 7-10% of polyvinyl alcohol, 1-3% of VAE emulsions, 0.01% of defoaming agent, 10-15% of nan-zinc oxide, 3-5% of methyl sodium silicate and the balance of water, the preparation method includes the steps of 1) adding polyvinyl alcohol into cold water to overflow to-be-volatilized substances, increasing the temperature through water-bath heating to accelerate dissolution, insulating heat until the solution does not contain microparticles, filtering the solution, and lowering the temperature to room temperature for standby use; 2) evenly stirring polypropylene glycol, the VAE emulsions and the water to obtain mixed liquid A; 3) putting polyvinyl alcohol solution and the mixed liquid A in a stirrer, adding nano-zinc oxide, methyl sodium silicate andthe defoaming agent, and performing uniform stirring to obtain the concrete crack-resisting agent, the composite concrete crack-resisting agent has the advantages that surface moisture evaporation ofconcrete can be inhibited obviously, plastic shrinkage of the concrete can be reduced, surface cracking of the concrete can be resisted, and durability of the concrete can be improved.

The invention discloses a karst tunnel large-scale cavern processing method. A cavern traversing tunnel section penetrating through a cavern comprises a tunnel section I, a tunnel section II and a tunnel section III according to the distribution positions, wherein two sides of the tunnel section I are suspended in midair and the top of the tunnel section I is at a smaller distance away from a cavern top plate, one side of the tunnel section II is suspended in midair, and two sides of the tunnel section III are suspended in midair and the top of the tunnel section III is at a larger distance away from the cavern top plate. The processing method comprises the steps of: 1, excavating a bypass pilot tunnel; 2, protecting inside of the cavern; 3, processing the bottom of the tunnel: filling the cavern below the tunnel section I with rock residues and grouting for reinforcing, and then distributing an armoured concrete slab girder, filling the cavern below the tunnel section III with concrete and then distributing an armoured concrete slab girder, filling the cavern below the tunnel section II with hard fillers; 4, constructing a gravity retaining wall at the suspending side of the tunnel section II; 5, constructing the tunnel section I with an open cut tunnel process; 6, constructing the tunnel section III with the open cut tunnel process after the bypass pilot tunnel bypasses; and 7, constructing the tunnel section II. The karst tunnel large-scale cavern processing method has the advantages of reasonable design, convenience for construction, safe and reliable construction process and short construction period, good processing effect on the large-scale cavern.

A construction technology for hoisting and installing the coal bunker composed of several segments made of steel includes such steps as arranging two parallel cantilever tracks under a steel beam, laying down a track on the ground, hanging an electric pulley-type lifter to each cantilever track, manufacturing each segment of coal bunker, using a cart to transport it along the ground track to the installation position, lifting said segments one by one while welding, and installing the base of coal bunker.