277results about How to "Save construction materials" patented technology

The invention discloses a method for constructing a core tube wall through a self-climbing formwork and the adopted self-climbing formwork. The method comprises the steps that the core tube wall is constructed from bottom to top layer by layer; when a first-layer wall body is constructed, a first pre-buried component is pre-buried, and pouring of the first-layer wall body is completed; after construction of the first-layer wall body is completed, a second-layer wall body is constructed, and a second pre-buried component is pre-buried in the second-layer wall body; each pre-buried component is provided with a wall attachment device, after pouring of the second-layer wall body is completed, a guide rail is arranged between the first wall attachment device and the second wall attachment device, a self-climbing device on the formwork is connected with the guide rail, alternate mutual climbing of the formwork and the guide rail is achieved through the self-climbing device, a form board is arranged on the formwork, and the construction of the core tube wall is completed layer by layer through the form board. The method is suitable for core tube construction of a super high-rise building of a frame core tube structure of 200 m to 400 m, a wide platform is provided for operating personnel for construction, safety is guaranteed well, construction efficiency is greatly improved, and construction cost is lowered.

The present invention relates to large area foundation treatment, and is especially process of treating large area soft foundation. The process includes the following steps: 1. arranging filter openings according to the stratum state; 2. inserting PVC filter pipes with filter pores in the calculated size into stratum, connecting the upper ends of the filter pipes beyond the soil layer to the main pipe and connecting the main pipe directly to the vacuumizing equipment; 3. vacuumizing based on the design requirement; and 4. withdrawing filter pipes after the soft soil layer consolidates and ramming to reach even high foundation strength. The process of the present invention has short construction period, less vacuum degree loss, saving in construction material and high foundation reinforcing effect.

The invention relates to a closed-section profiled steel sheet-concrete combined floor and a construction method thereof. The combined floor comprises a closed-section profiled steel sheet and concrete cast on the closed-section profiled steel sheet which is laid on steel beams of a steel structure main body, the bottom of the closed-section profiled steel sheet is fixedly connected with the steel beams, a top support is erected under the closed-section profiled steel sheet between steel beams, a lower iron forced bar is arranged in each wave trough of the closed-section profiled steel sheet, and an upper iron forced bar is correspondingly arranged above each lower iron forced bar, connected with the lower iron forced bar by a tensile bar and erected on an upper iron distribution bar into a groined shape. In the invention, the closed-section profiled steel sheet is also utilized as a floor bottom die to save construction material. By using the construction method, the construction period can be shortened, the cost can be decreased, the structural bearing force requirement is met, and the construction quality is ensured so that the invention is particularly suitable for public construction structures with high fireproof requirement.

The invention relates to underground comprehensive pipe rack construction, in particular to a continuous construction method for an aluminum alloy template for a comprehensive pipe rack. The continuous construction method comprises the following steps that A, first-time pouring construction of a first-section comprehensive pipe rack body is conducted; B, second-time pouring construction of the first-section comprehensive pipe rack body and first-time pouring construction of a second-section comprehensive pipe rack body are conducted at the same time; C, form removal of the first-section comprehensive pipe rack body is conducted; D, second-time pouring construction of the second-section comprehensive pipe rack body is conducted; and F, first-time pouring construction of a third-section comprehensive pipe rack body is conducted. According to the continuous construction method, the continuous cyclic work is achieved, rapid turnover construction is achieved, the construction speed is increased, the construction period is shortened, construction materials are saved, and the construction environment is safer and more environment-friendly. Meanwhile, a concrete structure formed through the continuous construction method is flat and smooth in surface quality, the requirements of facing and bare concrete are met, secondary plastering is not needed, and the construction cost is saved.

The invention discloses a connecting node of an assembled whole thick prefabricated slab. Connecting steel bars are reserved on the connecting surface of a prefabricated slab unit in the mode, the exposed parts of the connecting steel bars are ' '-shaped, and the exposed parts and the connecting surface form a closed polygon. In the connecting mode for the prefabricated slab unit and a beam or a wall, the connecting steel bars of the prefabricated slab unit are inserted with steel bars configured for the beam or the wall together at the connecting positions in a penetrating mode. Viewing from the cross section of the whole connecting node, the connecting steel bars and the steel bars configured for the beam or the wall form a single closed stirrup or a composite stirrup, and longitudinal bolt steel bars penetrate into the inner corner position of the single closed stirrup or the composite stirrup. The connecting node of the whole thick prefabricated slab unit can achieve the equivalent performance as a prefabricated slab connecting nodes and a cast-in-place concrete structure while achieving higher prefabrication rate and assembly rate. The invention further provides the whole thick prefabricated slab unit for achieving the connecting mode.

The invention discloses a wind power dedusting system for a rolling process of a cigarettes factory. The wind power dedusting system comprises a deduster connecting pipe, a plurality of branch wind pipes and a plurality of pieces of rolling and packing equipment, wherein each piece of rolling and packing equipment is connected with a branch wind pipe; the wind power dedusting system also comprises a wind compensating pipe with a wind compensating silencer and a main wind pipe; the deduster connecting pipe and the wind compensating pipe are respectively communicated with the main wind pipe; the main wind pipe is respectively communicated with each branch wind pipe through a pipe collector; and the wind compensating pipe is provided with a control valve which is used for automatically switching on to compensate wind when a certain branch wind pipe is stopped. The wind power dedusting system can concentrate wind power for supply, and ensure stable wind quantity, wind pressure and wind speed; the pipeline design is more standardized and unified; and the effective operability and the yield of the rolling and packing equipment are improved, the production cost is reduced and the service environment of workers is improved.

The invention provides a structure and a method for increasing the height of a corridor ceiling. The structure comprises a pipeline ceiling combined supporting hanger, a strong current wire groove and an air-conditioner cold water supply and water returning pipe which are arranged along the longitudinal direction of a main beam, wherein the pipeline ceiling combined supporting hanger is hung to a secondary beam or a floor top plate; the air-conditioner cold water supply-return pipe is directly arranged on the pipeline ceiling combined supporting hanger; the strong current wire groove is hung below the floor top plate. Due to the fact that except the part, which passes the secondary beam and is provided with a lower concave part used for crossing the secondary beam, of the strong current wire groove, the other parts of the strong current wire groove are arranged in the space between the bottom surface of the secondary beam and the bottom surface of the floor top plate, the ceiling elevation of a corridor is obviously improved. Due to the fact that a pipeline supporting hanger and a ceiling supporting hanger are combined into the pipeline ceiling combined supporting hanger, and the pipeline ceiling combined supporting hanger simultaneously plays the role of supporting the air-conditioner cold water supply-return pipe, a keel and a ceiling, so that a main keel in the original ceiling supporting hanger is eliminated, and the ceiling is further lifted.

The invention discloses a soft soil base large-scale steel floating box lock head construction method, which is characterized in that the specific construction steps comprise that: a foundation trench is excavated and silt is removed; a precast pile is beaten; a foundation bed is ripraped and a concrete cushion coat is poured and tamped; a steel floating box is precast and submerged; a waterproof purdah is jet grouted. Compared with the prior art, the invention has the characteristics of strong applicability, mass construction material saving, low construction cost and reliable construction quality; a lock head steel floating box can be also used as construction cofferdam; the soft soil base large-scale steel floating box lock head construction method is in particular suitable for building the lock head in an area with a soft soil base and deep water and can achieve good waterproof effect no matter how depth the foundation bed is.

The invention discloses an cast-in-place reinforced concrete hollow heating and cooling floor, comprising floors which is made of reinforced concrete beams, ribs, plates and the cavity components in it, in the centre of cavity components is an insulation board separating the cavity into upper and lower cavity, the upper cavity is installed with heating pipe, both ends of the heating pipe are exposed to the stated cavity components, a number of heating pipe are connected through the first connecting pipe forming heating pipe group, the lower cavity is installed with cooling pipes , both ends of the cooling pipe are exposed to the stated cavity components, a number of cooling pipe are connected through the first connecting pipe forming cooling pipe group. The heating pipe group and the heat media supply system are connected, the heat media flows through the heating pipe to heat environmental space on the floor, the cooling pipe group and the cold media supply system are connected, the cold media flows through the cooling pipe group to supply cool to the environmental space on the floor. The invention is simple in structure, with good heating or cooling effect and low cost, and there may be helpful in expanding the applicable space.

The invention relates to a construction method of a pile foundation anchor rope prestress high retaining wall. A coping section is arranged on the upper part of a cantilever board, the bottom of the cantilever board is provided with a bottom board; a tubular pile is embedded into the bottom board; a bracing piece is arranged behind the cantilever board and is fixedly arranged on the upper part of the bottom board; the bracing piece is connected with the cantilever board and the bottom board through a fixed end; an anchor rope penetrates through the cantilever board, the bottom board and the inner side of the tubular pile through the fixed end; the coping section and the bottom board are of a reinforced concrete structure; the top of the coping section is provided with a fixing end; the upper part of the bottom board is provided with a fixing end; an anchor rope preformed hole is pre-arranged for connecting a prestress anchor rope to form the pile foundation anchor rope prestress high retaining wall. The technology has favorable technical economic benefit.

The invention provides a power system relay protection system based on wireless transmission. The power system relay protection system based on the wireless transmission comprises the following components: (1) an industrial wireless switch; (2) a wireless synchronization clock device; (3) a wireless merging unit device; (4) a wireless intelligent terminal device; and (5) a wireless protection device, wherein the wireless relay protection device comprises a wireless plugin, a management board plugin, a protection plugin, a power plugin and the like. The power system relay protection system based on the wireless transmission, provided by the invention, can effectively reduce building materials such as optical cables, copper cables and the like which are used during secondary wiring in a substation, shortens the construction period, saves the construction investment, reduces a secondary return circuit, prevents locking and misoperation of protection caused by the secondary return circuit problem improves the reliability of the protection system, is convenient to install and debug, and can reduce the workload of maintenance personnel.

The invention provides a main seawater pipe system applied an auxiliary vessel of oceanographic engineering. The system comprises a bottom seawater box, a main seawater pipe, a bilge seawater box, an U-shaped pipeline, an L-shaped pipeline, a cabinet inner bottom and a manhole cover, wherein the bottom seawater box and the main seawater pipe are distributed below the cabin inner bottom; the bilge seawater box is arranged on the vertical side surface adjacent to the cabin inner bottom; the bottom seawater box is communicated with the main seawater pipe through the U-shaped pipeline; the bilge seawater box is communicated with the main seawater pipe through the L-shaped pipeline; the manhole cover is arranged on the level of the cabin inner bottom. The system can be widely applied to various auxiliary vessels of oceanographic engineering, has obvious advantages on space saving, material saving, mounting design, overhaul and maintaining, and is practical and worthy of popularization and application.

The present invention relates to a cast-in-situ reinforced concrete hollow heating floor. It includes floor, said floor is formed from reinforced concrete and several hollow cavity members contained in the reinforced concrete, on said floor a ground surface decoration layer is set, in said hollow cavity member a heating pipe is set, two ends of said heating pipe are exposed from said hollow cavity member, several heating pipes are successively connected by means of connecting pipe to form heating pipe group. Said heating pipe group is connected with heat source supply system.

The invention relates to a GIS (geographic information system)-based three-dimensional jumper sag determination method. The method includes (1) calculating the minimum tolerance sag f<pm> of the jumper; (2) examining the minimum tolerance sag f<pm>; (3) calculating the minimum tolerance sag f<pm> in an interactive manner; (4) calculating the maximum tolerance sag f<pm> of the jumper; (5) selecting a jumper construction sag f<p0>; (6) calculating a swing sag of a quad-bundle jumper; (7) calculating the sag length of the jumper. By the use of the method, operation efficiency and safety on a tower are improved so as to shorten the construction period, save labor and enhance mounting quality; construction cost is lowered during the construction, safety and efficiency are improved, use requirement of line project is met, and design quality is increased; wire number is available before construction, thus wire waste is avoided during the construction, construction cost is reduced, construction materials are saved, and construction benefits of the project department are increased.

The invention discloses a high bridge pier self-lifting outer frame over-form construction technology which is simple in construction, high in construction safety and high in construction efficiency. The over-form construction technology comprises the following steps that firstly, formworks are installed, and upper layer concrete and lower layer concrete are poured; secondly, outer support systems and telescopic devices are installed; thirdly, the lower layer formworks are detached, lifted and installed; fourthly, the outer support systems are lifted; fifthly, the telescopic devices freely side downwards to an upper layer formwork system to be connected with formworks of the upper layer formwork system. The over-form construction technology is easy to operate, quality is controlled more easily, the speed is higher, cost is lower, and safety is higher.

The invention provides a constructing method for a flashing structure of a parapet wall. The constructing method comprises the construction steps of prefabricating flashing members, installing the flashing members, filling and compacting between the adjacent flashing members, coating a waterproof coating material and the like. The constructing method adopts a mode of prefabricating the flashing members, rapid pre-production of the flashing members is realized, the construction efficiency is improved, construction quality of the flashing members is convenient to control, and processing workshopconcentrated machining forming is achieved; construction pollution can be effectively reduced, construction materials are saved, and construction waste is reduced; phenomena of cracking and hollowingon the surfaces of the prefabricated flashing members cannot happen, and common technical problems are overcome; by using air permeability between the prefabricated members and a waterproof layer, the effect of heat resistance of the prefabricated members is good, deformation of the waterproof layer caused by water temperature changes is reduced, falling-off and water leakage of the waterproof layer can be effectively prevented, and the waterproof service life is prolonged; and the prefabricated flashing structure has a better appearance effect, the flashing height, width and radian are consistent, a later waterproof coating surface layer cannot fall off, and the long-term aesthetic effect can be achieved.

The invention discloses a construction method of an asymmetric cable crane. The engineering terrain situation is integrated, the characteristic of craggedness of large-mileage side mountain is utilized, thus a large-mileage side tower frame is arranged on a mountain slope with the precipitous mountain valley, the terrain height difference is reasonably utilized, thus a construction material of thelarge-mileage side tower frame is saved, stable force-bearing of two sides is ensured, the construction difficulty is also lowered, the distance between the large-mileage side tower frame and the center of a bridge is greater than the distance between a small-mileage side tower frame and the center of the bridge, through formed unequal edge span design, force-bearing balance of the large-mileageside tower frame and the small-mileage side tower frame under the unequal elevation situation is ensured, the structural stability is improved, and the construction method is used for the technical field of bridge construction.

The invention discloses a reinforced concrete column welding ring rib reinforced structure. A reinforced cage is arranged on the side face of the bottom of a to-be-reinforced reinforced concrete column, the height of the reinforced cage is equal to the length of a column bottom plastic hinge area of the to-be-reinforced reinforced concrete column, the reinforced cage comprises more than one vertical longitudinal ribs and more than one welding ring ribs, the vertical longitudinal ribs are located inside the welding ring ribs, the welding ring ribs are fixedly connected with the vertical longitudinal ribs, and a concrete layer covering the reinforced cage is poured on the side face of the bottom of the to-be-reinforced reinforced concrete column. The invention also discloses a construction method of the reinforced concrete column welding ring rib reinforced structure. The reinforced concrete column welding ring rib reinforced structure is used for realizing small construction workload and simple construction process, aiming to the phenomenon that the column end of the reinforced concrete column is damaged in the earthquake, the weak column bottom is reinforced, and part of the reinforced concrete column is reinforced to achieve anti-seismic reinforcement of the whole column.