46results about How to "Construction time is short" patented technology

The invention discloses a prefabricated and light floor cover plate and an industrialized building house floor plate structure. The prefabricated and light floor cover plate comprises a facing layer, light packing layers where light packing blocks on the back face of the facing layer are arranged and bonding piece for fixing the facing layer and the light packing layers in a locating mode, steel reinforcement framework sheets are arranged between the light packing blocks, steel reinforcement meshes are laid at the backs of the light packing layers, and concrete structure layers are poured at the backs of the light packing layers and extend to gaps between the light packing layers to enable the facing layer, the steel reinforcement meshes, the steel reinforcement framework sheets and the light packing layers to be bonded to form a whole. The industrialized building house floor plate structure comprises a plurality of prefabricated and light floor cover plates transversely and fixedly arranged on a supporting beam, prefabricated lower sunk grooves, prefabricated balcony assemblies and cast-in-place concrete connecting pieces. The industrialized building house floor plate structure is simple in construction process and has the advantages of being light in weight, high in anti-shocking capacity, safe and the like.

The invention discloses a novel efficient assembly-type reinforced concrete composite beam, and belongs to the technical field of bridge construction. The novel efficient assembly-type reinforced concrete composite beam comprises a concrete bridge deck and a steel girder; the concrete bridge deck is arranged on the steel girder; a top flange plate of the steel girder is fixedly connected with a ribbed plate extending in the vertical direction of the steel girder; the bottom of the concrete bridge deck is provided with a channel extending in the vertical direction of the steel girder; the ribbed plate is arranged in the channel; two side edges of the top flange plate are fixedly connected with rubber sealing strips extending in the vertical direction of the steel girder; the bottom surface of the concrete bridge deck is in lap joint with the rubber sealing strips; the top flange plate, the rubber sealing strips, the bottom surface of the concrete bridge deck, and the channel of the concrete bridge deck defines a grouting channel; and the grouting channel is filled with a high-strength pouring sealant material. According to the invention, a series of problems brought by processing of reinforced concrete connecting pieces and cast-in-place of jointed concrete are effectively avoided, the construction quality is guaranteed, at the same time, the on-site work efficiency is improved, and the novel efficient assembly-type reinforced concrete composite beam is more environmentally friendly, and has good economic benefits.

The invention discloses a non-demolition type reforming and refitting construction method. The method particularly comprises the following four steps: (1) acquiring information data of old road traffic conditions; (2) evaluating the diseases and defects of an old road; (3) formulating an operation scheme for reforming and refitting the old road, and performing construction; (4) evaluating and tracking the refitting effect. When the construction method is used for reforming and refitting an urban old and damaged road with a rigid surface layer, the resources of the old road are fully and reasonably utilized, so that excellent service quality performance is obtained; the service life period of the refitted road is long; furthermore, compared with a mode of dismantling the old road and then building a new road, the construction method greatly reduces old structure demolition work load and resource consumption and greatly shortens the construction period; therefore, the construction method corresponds with the development direction of high quality and low consumption, fastness and high efficiency as well as energy conservation and environmental protection, thus being remarkable in promotion and application values.

The invention discloses a horizontal geological survey arrangement method for a deep buried underground cave depot. The method comprises the following steps: 1, performing ground survey, forming a measurement area geological background report and a geological survey implementation scheme; 2, carrying out surface area geophysical prospecting, carrying out engineering geological area division, generating a measuring area project geology partition map, and delineating a geophysical prospecting abnormal band; 3, carrying out long-distance horizontal drilling, taking a core and reserving a sample for indoor geotechnical test, and analyzing the front situation of excavation of the cave depot; 4, predesigning a cave depot excavation support; 5, carrying out the tunnel excavation of the cave depot, and carrying out intra-hole advanced geophysical prospecting before excavation; 6, carrying out deep blast hole detection, and judging front geological conditions; 7, comparing advance geophysical prospecting information, and dynamically adjusting support design parameters in time; and 8, summarizing detection results, constructing an underground cavern three-dimensional geological model, carrying out cave depot support design and timely support modification according to the detected geological conditions so as to guarantee the tunnel excavation safety. According to the method, the geological condition of the underground cave depot can be accurately surveyed, and the construction time is short.

The invention relates to a reinforcing device for repairing buildings. The reinforcing device comprises a first connecting plate fixed with a base substrate, a first vibration isolation device for buffering and damping is arranged on the upper portion of the first connecting plate, a lifting device for adjusting the height of a whole device is arranged on the upper portion of the first vibration isolation device, a second vibration isolation device is arranged on the upper portion of the lifting device, a supporting device is arranged on the upper portion of the second vibration isolation device, the top end of the supporting device is fixed with the top surface, and carbon fiber layers are arranged between the supporting device and the top surface, horizontally and vertically intersectedto form a screen and fixedly connected with the top surface. The reinforcing device is reasonable in overall structure, convenient to use and applicable to different building storey heights and top surface inclined angles, the supporting area is increased, the reinforcing device and carbon fiber reinforcing screens are matched to form a compound reinforcing structure, the rigidity of the overall structure is increased, ground occupied area is small, usage rate is increased, construction time is shortened by the aid of a prefabricated structure, investment cost is low, and the anti-vibrating stability of the overall structure is improved by the vibration isolation devices.

The invention belongs to the technical field of bridge construction, and particularly relates to a support cast-in-place, pier top rotation and cast in cantilever combined construction method for continuous beams. The support cast-in-place, pier top rotation and cast in cantilever combined construction method for the continuous beams comprises the following steps of 1# pier construction and 2# pier construction. The 1# pier construction comprises the following steps that: S100: support building construction: after the support finishes being built and the support confirms to be qualified in acceptance, carrying out piling preloading, eliminating the non-elastic deformation of the support, and determining an elastic deformation value so as to determine formwork erection elevation; S200: theinstallation construction of a pier top rotation construction; S300: beam body support cast-in-place construction; S400: the rotation construction of the pier top rotation construction; and S500: system transformation. The 2# pier construction comprises the following steps that: U100: 0#block construction; U200: hanging basket splitting; and U300: continuous beam segment construction: when both the 1# pier and the 2# pier finish being constructed, carrying out closure construction of the continuous beam. The method is short in construction time, a construction site is provided with a regulation space, and meanwhile, an existing railway can prevent from being blocked.

An industrialized EPS module wall plate system matched with a fabricated steel frame comprises a wall plate and connecting nodes between the wall plate and the steel frame, and beam columns of the steel frame are all I-shaped steel. The wall plate comprises EPS modules, wooden keels and a light surface covering plate, the EPS modules are spliced into a wall plate main body through tongue-and-groove boards, the wooden keels are fixed to the two side faces of the wall plate main body, and the wooden keels are covered with the light surface covering plate; the wall plate is divided into a prefabricated inner partition wall plate body, a prefabricated outer wall plate body, a prefabricated windowing hole wall plate body and a prefabricated wall plate body with a bay window; and the connecting nodes comprise the connecting nodes of the wall plate and steel frame columns and the connecting nodes of the wall plate and steel frame beams, the connecting nodes of the wall plate and the steel frame columns comprise four kinds of nodes including the nodes A, the nodes B, the nodes C and the nodes D, and the connecting modes of the wall plate and the steel frame beams are composed of pieces of angle steel I with bolt holes and bolts I for fixing the pieces of angle steel I. The wall plate system can be subjected to industrialized production, conveying and mounting are convenient, the heat insulation effect is good, and rigidity, strength and weather resistance are good.

The invention discloses an over-crossing existing subway tunnel between-pile soil clearing method. The over-crossing existing subway tunnel between-pile soil clearing method comprises the following steps of: firstly, arranging an shock absorbing elastic support between two adjacent isolating piles; vertically arranging a plurality of pre-cracking drill holes surrounding each isolating pile; dividing the between-pile soil surrounding each isolating pile into a stable region and an unstable region; finally carrying out layered excavation on the between-pile soil in the unstable region by adopting machinery; and carrying out layered excavation on the between-pile soil in the stable region by adopting manpower. By utilizing vibration wave transmission theory and arranging the shock absorbing elastic support, the over-crossing existing subway tunnel between-pile soil clearing method disclosed by the invention realizes effective absorption of disturbance and vibration generated in excavation, reduces the disturbance to the isolating piles, damages the integrity of the between-pile soil by forming the pre-cracking drill holes surrounding the isolating piles so that the between-pile soil in the stable region can be conveniently removed in an excavation way and partial vibration wave generated in excavation in the unstable region is effectively absorbed, greatly reduces the disturbanceto the isolating piles and over-crossing existing tunnel surrounding rock in an excavation process by adopting machinery and manpower in combination with excavation, realizes high safety and simple operation, and spends a short time.

The invention discloses a hanger platform for T-shaped beam maintenance and reinforcement. The hanger platform comprises a platform fixing device and a working platform. The platform fixing device isarranged on a T-shaped beam in an assembled mode. The working platform comprises a plurality of hanger sets, and all the hanger sets are arranged at intervals in the longitudinal direction of a bridge. Each hanger set comprises two vertically-arranged hangers which are arranged in a spaced mode in the transverse direction of the bridge. The tops of the hangers are detachably connected to the platform fixing device. A rectangular frame is detachably arranged between every two adjacent hanger sets, and a passage for allowing a maintainer to pass through is formed between each rectangular frame and the platform fixing device. All the rectangular frames are located in the same horizontal face. By adopting modular construction, the construction time for platform erecting is short, the construction technology is simple, operation is easy, and safety of a constructor can be ensured.

The invention discloses an embedded anchoring-buttress type combined retaining wall structure and a construction method, and belongs to the technical field of geotechnical engineering. A plurality of parallel inclined buttresses are arranged on the inner side of a buttress type retaining wall. A vertical face of the buttress type retaining wall is provided with reserved anchor cable holes, and the inner side of the buttress type retaining wall is a backfilled gravel soil layer. The backfill gravel soil layer is provided with a groove body, and the groove body comprises an anchor cable free groove, an anchor cable anchoring groove and an expansion head groove. The inner end of the anchor cable forms an anchor cable anchoring section and an expansion head in the anchor cable anchoring groove and the expansion head groove by pouring cement mortar. A plurality of steel strands at the outer end of the anchor cable penetrate through the anchor cable free groove and are fixed to the anchor head through reserved anchor cable holes. A plurality of steel strands in the anchor cable free section and the anchor cable anchoring section are supported in the groove body through a plurality of centering supports. The invention further provides a construction method. The pre-stressed anchoring technology is combined with a traditional buttress type retaining wall to work, so that the problems that a high buttress type retaining wall is poor in stability, large in size, high in manufacturing cost and the like when working independently are solved. The construction time is short, the engineering cost is low, and the quality is good.

The invention relates to a temperature-resistant anti-corrosion lining coating for a riser heat exchanger and a construction method thereof. The lining coating comprises the following components in percentage by mass: 40.0%-50.0% of fused mullite, 32.0%-42.0% of silicon carbide powder, 5.0%-10.0% of alumina micro powder, 2.0%-10.0% of steel fibers and 2.0%-10.0% of cement, and the total mass percentage of the fused mullite, the silicon carbide powder, the alumina micro powder, the steel fibers and the cement is 100%. The mass of the silica sol accounts for 5-10% of the total mass of the fused mullite, the silicon carbide powder, the alumina micro powder, the steel fiber and the cement; the construction method comprises the steps of solid raw material mixing, coating preparation, framework fixing and coating coating, the prepared coating is evenly coated on the inner wall of the ascending pipe, and after natural curing, the formed solid coating layer is formed through baking. The lining coating is uniformly coated on the inner wall of the riser heat exchanger and is fixed through the hexsteel, so that the coating is effectively prevented from stripping, the problems of corrosion, coking and smoking of the riser heat exchanger are effectively solved, the riser heat exchanger is prevented from being damaged, and the safety and the stability of the heat exchange device are improved.