38results about How to "Ease of construction progress" patented technology

The invention relates to a collision detection method based on the BIM technology, and belongs to the technical field of building detection. The collision detection method includes the following steps that 1) through a BIM, three-dimensional model information of a member is constructed, and the volume is calculated according to size parameters of the member; 2) the member and electrical equipment are subjected to wall-through hole leaving and subjected to collision detection, a mixed-level bounding-box collision detection method is adopted, a mixed-level tree is constructed and then is traversed, and nodes needing to be subjected to collision detection are determined according to the traversed result; 3) for geometric primitives, collision detection is carried out, and if the detection result is collision, moving is carried out to form a reasonable design scheme; 4) the construction process is simulated through the constructed model, dynamic interference existing in construction is found, the reasonable construction sequence and process are calculated, and a construction scheme is selected. According to the collision detection method based on the BIM technology, through a three-dimensional digitizing mean, the installing process is simulated, pre-designing is carried out, the problem is discovered and solved in advance, and the construction efficiency of a transformer substation is effectively improved.

The invention provides a high-voltage insulated rubber tape, comprising a base film and an adhesive layer which is attached to the base film, wherein the base film adopts a polyethylene material; the adhesive layer is prepared from the following materials by mass ratio: 4-6% of butyl rubber, 10-15% of butadiene styrene rubber, 23-26% of natural rubber, 10-15% of china clay, 1-2% of white carbon black, 1-3% of carbon black and 2-4% of dioctyl-phthalate. The high-pressure insulated rubber tape disclosed by the invention is good in electrical characteristics, good in water resistance and wet fastness, good in ozone resistance, chemical resistance and weather fastness, good in ageing resistance, and good in operation, is an excellent insulated material, and can be stored for a long period of time; the product is good in insulating property and small in thickness.

The invention provides a dry-hang joint for an external wall of a fabricated building and a prefabricated external wall with the dry-hang joint. The dry-hang joint comprises a pre-buried box, a hook seat and a connecting bolt which are pre-buried in a prefabricated external wall board, wherein the side surface, facing the hook seat, of the pre-buried box is open; the hook seat is connected and fastened with a pre-buried sleeve in a building main body through the connecting bolt; the hook seat penetrates through the opening in the side surface of the pre-buried box, so as to support the whole prefabricated external wall board; the building main body comprises a prefabricated beam or a shear wall. The dry-hang joint and the prefabricated external wall have the advantages that the construction procedures are simplified; the construction progress is improved; lick bricks and decorations are prevented from flaking off from the external wall board, so that the safety performance is high; the external wall board and the decorations of the external wall board can be produced integrally in a factory, so that high-altitude decoration operation of a worker is avoided; the dry-hang bonding strength of the external wall is high; the water resistance is good; the building quality is excellent.

The invention belongs to a subgrade construction method for an aeolian sand section and a structure and a device thereof; the method comprises the steps of construction preparation, filler sampling inspection, aeolian sand loading and transportation, aeolian sand laying and leveling, water replenishing for aeolian sand, aeolian sand compaction, testing detection of compacted aeolian sand, formation of sand fixing columns by grouting the interior of the upper part of a rolling-compacted molded aeolian sand filling layer by a rapid sand fixing column construction machine, slope stacking with sand bags, road bed acceptance, sand gravel loading and transportation, sand gravel layer laying, sand gravel watering compaction, testing detection of a sand gravel layer and compound slope protection.The device is the rapid sand fixing column construction machine, can form four sand fixing columns distributed at intervals. The method and the device can effectively build a road in the aeolian sandsection, provide the feasible subgrade structure and rapid reinforcement equipment, and have the advantages of simple and practical method, stable subgrade slope, low construction risk, low cost, construction period saving, no pollution, long service life of highways and good use effect.

The invention discloses a construction method of an assembly type steel pipe piece formwork suitable for rapid lining of a circular tunnel. The construction method mainly comprises the steps that S1,the assembly type steel pipe piece formwork is designed into formwork units with a certain length in the axial direction of the tunnel, and each tunnel formwork unit is divided into a bottom formwork,a left side standard formwork, a right side standard formwork and a top sealing formwork; S2, when the circular tunnel is excavated, sleeves are pre-buried in the left side and the right side of surrounding rock corresponding to the assembly type steel pipe piece formwork; S3, all the formworks are prefabricated in a steel pipe piece formwork processing factory; S4, the assembly type steel pipe piece formwork is assembled in the circular tunnel; S5, the steps S2-S4 are repeated until mounting of the whole formwork units is completed; S6, after the circular steel pipe piece formwork is assembled and fixed, concrete is poured, and the formworks are unloaded; and S7, the steps S2-S6 are repeated until lining construction of the whole circular tunnel is completed. The construction method hasthe arch effect, and the tunnel lining construction efficiency and the lining utilization efficiency are effectively improved.

The invention discloses an assembled integral type basement structure and a quick and safe construction method thereof. The quick and safe construction method comprises the steps that a plain concretecushion layer is arranged on a preset foundation, and a waterproof roll is paved; prefabricated bottom plates are installed on the waterproof roll; the prefabricated bottom plates are connected in the longitudinal direction and in the transverse direction; the prefabricated bottom plates on the outer edge are connected with a prefabricated outer wall; a basement prefabricated top plate beam is connected with a cast-in-place concrete column; a basement prefabricated top plate is connected with the basement prefabricated top plate beam; and a concrete lamination layer is cast in place on one side after prefabricated component joints are connected. According to the assembled integral type basement structure and the quick and safe construction method thereof, quick and safe construction can be achieved through prefabricated components in the basement construction process, therefore, large sums of money can be saved, and the construction period can be shortened; meanwhile, inner and outerhydraulic equilibrium of a basement is achieved through holes reserved in the plate faces of the prefabricated bottom plates and the wall face of the prefabricated wall, and the anti-floating stability requirements of the basement are met under the extreme conditions in the construction period; and construction of the prefabricated component lamination layer is completed timely, and the waterproofand anti-leakage requirements of the basement in the using period are met.

The invention discloses an external tower crane alternate conversion attachment system and a construction method. A tower crane structure comprises a tower crane, a temporary attachment system and a formal attachment system; the temporary attachment system and the formal attachment system are both arranged on the tower crane; the formal attachment system is located below the temporary attachment system; the two ends of the temporary attachment system are connected to the tower crane and a core tube correspondingly; and the two ends of the formal attachment system are connected to the tower crane and an outer frame column correspondingly. For a super high-rise building constructed by adopting a core tube first-moving and outer frame following method, when the height difference between the working surfaces of the core tube and the outer frame is too large, a temporary attachment system is adopted firstly, so that the phenomenon that the tower crane cannot be effectively attached to cause idleness of the tower crane due to the too large height difference between the working surfaces; and when the outer frame column is constructed above the temporary attachment position, temporary attachment is converted into formal attachment, so that the influence of a tower crane attachment rod piece on subsequent decoration and curtain wall construction of a building is avoided, and the overall construction progress of a project is facilitated.

The invention discloses a large-angle high-thickness slope surface concrete pouring graded grid. The large-angle high-thickness slope surface concrete pouring graded grid is composed of meshes and a supporting mounting system; the supporting mounting system is paved along the slope surface, and galvanized electrowelding steel wire gauze is adopted in the meshes; and the width of the graded grid isslope surface concrete thickness minus the thickness of an upper protective layer and a lower protective layer and the diameter of an upper layer of steel bars and a lower layer of the steel bars, aninterval of the meshes placing is determined through the galvanized steel wire mesh theory maximum ash blocking quantity water level and a perpendicular distance from a slope surface intersection tothe meshes, so that the meshes better block ash, and the concrete slope slipping phenomenon is controlled. According to a field slope surface structure, the limitation of concrete pouring slump limitand the pouring procedure of concrete, the concrete is poured in two layers, and vertical partition meshes are arranged and pouring is carried out by dividing left and right parts of each layer. Whenthe concrete is poured, pouring phenomena of large area and high pressure do not exist, and the slope surface is stable. The problems of increased operating personnel operating quantity, slow construction speed, low efficiency, prolonged construction period and the like are solved.

The invention relates to a tunnel assembly type inverted arch precast block structure. An assembly type inverted arch precast block is of a precast structure, the bottom face is an arc face, the top face is a plane, the two sides are contact faces with an arch wall cast-in-place secondary lining, and a longitudinally-through through hole is reserved in the assembly type inverted arch precast block; and assembly type inverted arch precast blocks are longitudinally and sequentially spliced in the line direction to form a tunnel inverted arch structure. According to the tunnel assembly type inverted arch precast block structure, the structure type requirement of a tunnel assembly type inverted arch is met, the space below the inverted arch precast block is used as a tunnel longitudinal drainage ditch, ditches on the two sides of a drilling and blasting method tunnel can be adjusted to the interior of the assembly type inverted arch block, the space on the two sides of the tunnel is saved, the section outline of the tunnel is optimized, and the concrete consumption is reduced, so that the engineering investment is reduced; and the inverted arch precast block structure can be prefabricated in a factory-like and standardized manner, so that the quality is more reliable; the inverted arch precast block is more reasonable in structural form stress, can improve the concrete grade, reduce the structural size and reduce the manufacturing cost, and is suitable for underground engineering such as tunnel construction through a drilling and blasting method.

The invention discloses an armored door. The armored door is composed of six parts including an auxiliary frame, a main frame, edges, door leaves, door core fireproof fillers, panels, anti-theft steelplates and hardware components; the provided armored door has high anti-theft performance and is of main and auxiliary frame structures, the exteriors of the door leaves are made of wood, the interiors of the door leaves are made of steel, and an omnidirectionally guaranteed anti-theft design with 12 anti-theft lock points is adopted; the components have high independence, the armored door can benormally used after replacement of each component when the component is damaged, and the design of the detachable inner and outer panels of the armored door greatly reduces the maintenance cost. Theedges are made of metal, anti-collision and anti-pry effects are achieved, the portions, in contact with the door frames, of the most frequently stressed door leaves are made of steel for protection,and many common quality problems in engineering are avoided.

The invention discloses construction equipment based on synchronous drilling and precast pile splicing and a construction method thereof. The equipment comprises an equipment main platform provided with drilling and pile planting holes, and a lifting device and a main mast are arranged on the equipment main platform; six track plates are arranged on the main mast, one drilling machine is arranged on each of the first track plate and the second track plate, and two pile clamping devices are arranged on each of the third track plate and the fourth track plate; the two pile clamping devices on the third track plate are the first pile clamping device and the second pile clamping device, and the two pile clamping devices on the fourth track plate are the third pile clamping device and the fourth pile clamping device; the third section of precast pile and the fourth section of precast pile are spliced on the fourth track plate while the drilling machine on the second track plate drives a drill rod to drill holes; and the first precast pile section and the second precast pile section are spliced on the third track plate while the drilling machine on the first track plate drives the drill rod to drill holes. The equipment construction method is simple and efficient, and the pile planting quality can be guaranteed.

The invention relates to a temperature-pressure coordinated control system in a volute. The temperature-pressure coordinated control system comprises a temperature-maintaining system, a pressure-controlling system and a temperature-pressure-coordinating system, wherein a central control system comprises a temperature system control module, a pressure system control module, a temperature measurement input module, a pressure measurement input module, a temperature-pressure relation input module and a control precision input module and is connected with the temperature-maintaining system, the pressure-controlling system, a pressure sensor, a water temperature meter and a height automatic regulator of the pressure-maintaining system. According to the temperature-pressure coordinated control system disclosed by the invention, the central control system is used for carrying out dynamic coordination on temperature and pressure in the volute, and the pressure of water in the volute is rapidly regulated by a self-control lifting platform, thus the expansibility of the volute quickly meets design requirements during construction, the influences on the construction progress and the construction quality due to low regulation speed, difficult coordination and the like caused by single temperature regulation are improved, and foundation is laid for the promotion of the construction speed of a novel volute under the premise that the construction quality is guaranteed.

The invention provides a flexible mineral insulated cable construction method, which belongs to the technical field of electric wire and cable engineering. The method comprises the steps of cable bracket model selection, field positioning and the like, and is characterized in that a cable path is planned in advance, including wall body treatment and bracket manufacturing and mounting; under the condition of ensuring firmness, cable laying is carried out, the cables are classified and sorted according to the types and specifications of the cables and then are fixed through ribbons; the on-siteconstruction quality is guaranteed, construction is easy, convenient and rapid, the construction progress and the engineering quality are greatly promoted, and good economic benefits and social benefits are obtained. The problems that according to a common laying method, many bridges are needed, the construction investment is large, the construction space is small, and the construction period is long are well solved, a launching type laying part adopts a bridge-free construction mode, and the construction cost is reduced; and a trunk type laying part adopts a prefabricated branch cable and adopts a cable bracket for laying, so that the fireproof requirement of a super high-rise building on the cable is successfully met.

The invention relates to the technical field of construction machinery, in particular to a construction machinery supporting type hood device with a reverse blowing cleansing assembly. The construction machinery supporting type hood device comprises a mounting plate. A vertical water tank is arranged on the mounting plate. Supporting legs are arranged at the bottom of the vertical water tank. A rotary motor is mounted on the bottom face of the vertical water tank and connected with a stirring blade mounted in the middle of the inner bottom face of the vertical water tank. A battery holder is arranged in the middle of the surface of the mounting plate of the vertical water tank. A rechargeable battery is arranged in the battery holder. A heater is arranged on the lower portion of the left side of the vertical water tank. A heating rod of the heater is mounted on the inner left side face of the vertical water tank. The construction machinery supporting type hood device is convenient to use and easy to mount, timely cleaning of cement spray pipes is facilitated, the effect that no cement remains in the pipes is ensured, thus, the flow and flow rate of cement are ensured, the working efficiency is improved, and the building construction progress is ensured.

The invention discloses an outdoor work site lighting simulation method based on a BIM technology. The method is characterized by comprising the following steps: building a site BIM model according to actual site information based on the BIM technology; building a simulated lamp according to the key information of a lighting scheme, and determining the lamp placing position information of the simulated lamp; placing the simulated lamp in a corresponding position in the site BIM model according to the lamp placing position information; and building the work plane of each area in the site BIM model, adjusting the elevation of each work plane, and demonstrating the lighting effect of the work planes of different elevations in different areas in a 3D visual manner to simulate the lighting condition of each phase in actual construction. According to the invention, the construction site is reduced first, a simulated lamp BIM model is made creatively, and the lamp placing problem and the lamp parameter integration problem are solved. Through construction lighting simulation, the on-site night lighting effect and the site progress image can be viewed visually.

The invention discloses an indoor prefabricated decorative wall panel with an inorganic composite capillary network system. The indoor prefabricated decorative wall panel comprises a water supply mainpipe, a water return main pipe, a capillary network and a fixed plate, wherein the water supply main pipe and the water return main pipe are connected through the capillary network and arranged on one side of the capillary network at the same time, and the capillary network is compounded in the fixed plate. The indoor prefabricated decorative wall panel with the inorganic composite capillary network system has the beneficial effects that through circulation of a cold water system and a hot water system, adjustment of the indoor air temperature is achieved; the construction steps are greatly simplified and are not influenced by weather, the construction progress is well guaranteed, the construction quality is remarkably improved, and the phenomena of cracking, hollowing, falling and the like in the use process are avoided; and the heat-conducting property is remarkably improved, the characteristics of extremely high flame retardance, sound insulation, fireproof grade and the like are achieved, and a decoration material reaches the class A level.

The invention discloses an improved method of a compact bit. The improved method is characterized in that an existing bit structure serves as a basis, a non-working end of a bit body is set into a conical structure, a connecting groove is formed in the non-working end, and the diameter of the connecting groove is consistent with that of the end face of the non-working end of the bit body. After the bit can be connected with the connecting groove, a smooth transition conical surface is formed between the bit and a drill rod (the taper is determined according to practical situations and ranges from 20 degrees to 90 degrees), the diameter of the drill rod is consistent with that of the end face of the non-working end of the bit (the drill rod is used with the connecting groove, and the diameter of the drill rod is consistent with that of the connecting groove), the drill rod and the bit are smoothly transited, a fracture surface cannot be formed between the drill rod and the bit, frictional resistance between the bit and a rock surface is reduced when the drill rod is drawn by a holer, on-site operations and construction progresses of workers are greatly facilitated, the non-working end of the bit is of a conical structure, and the strength of the bit cannot be changed and is ensured.

The invention discloses a precast pile sinking device and a construction method thereof. The pile sinking device comprises a movable equipment platform, wherein a pile planting device is mounted in the center of the equipment platform; a hoisting device and a drilling frame base are arranged on the equipment platform; a drilling frame platform is mounted on the drilling frame base; a main mast is vertically hinged to the drilling frame platform; two drilling machine main machines for driving a drilling rod to rotate are arranged on the main mast; a winch which is connected with the drilling machine main machines through steel wire ropes and is used for driving the drilling machine main machines to move up and down along the guide direction of the main mast and a power distribution box for distributing power to all power utilization units on the equipment are also mounted on the drilling frame platform; and the main mast is hinged to two main mast supports. The construction method of the precast pile sinking device comprises eight process steps. The precast pile sinking device is small in number of construction equipment, small in occupied area, high in construction efficiency and reliable in process, and can meet the process requirements of drilling and pile planting.

The invention provides a TBM cutterhead vibration monitoring and evaluating method, and belongs to the technical field of TBM vibration testing. By building a remote data acquisition system, remote real-time acquisition of vibration data of aTBM cutterhead is realized. Meanwhile, working condition and geology division is performed according to vibration monitoring data of different construction sections in combination with TBM tunneling parameters, geological reports and the like. Cutterhead hob rock breaking loads under different surrounding rock conditions are studied, and a cutterhead vibration level evaluation method, namely a vibration limit value, under different working conditions is determined through finite element and dynamic simulation. The engineering problems such as damage to a TBM cutterhead caused by overlarge vibration are prevented, and safe and reliable tunneling of construction equipment is ensured.

The invention discloses a drainage plate shearing device, a control system and a plate shearing process. The drainage plate shearing device mainly comprises a cutting device, a hydraulic push rod telescopic device, a guide rail, a shaft sleeve, a fixed support, a cross beam, the drainage plate shearing device control system and the plate shearing process. According to the drainage plate shearing device control system, automatic plate shearing or key manual plate shearing is carried out, the hydraulic push rod telescopic device completes stretching or retracting operation, plate shearing or rod retracting operation of the drainage plate shearing device is achieved, and the drainage plate shearing work of a plate inserting machine is finally achieved according to the drainage plate shearing process. The devices of the device are detachable, so that the device is convenient to transport and install. By means of the novel drainage plate shearing device, the cutting efficiency and cutting quality of a drainage plate effectively improved, and the labor cost is saved.

The invention provides a tunnel construction ventilation dust-removing device, and relates to the technical field of tunnel construction assisting devices. A plurality of air inlet pipes are connectedin series, the air inlet pipes at one end heads are fixedly arranged at the outlet end of an air pump in a sleeving manner, the air pump is fixedly arranged on the ground, a plurality of water inletpipes are connected in series, the water inlet pipes at one ends are fixedly arranged at the outlet end of a water pump, and the water pump is fixedly arranged on the ground; the air inlet pipes and the water inlet pipes are arranged on a storage assembly in a winding manner, the air inlet pipes and the water inlet pipes are arranged on a support assembly in a penetrating manner, and the air inletpipes are arranged below the water inlet pipes; the air inlet pipes are arranged on No.1 rotating shafts on a No.1 bracket in a winding manner, and the water inlet pipes are arranged on No.2 rotatingshafts on a No.2 bracket; and the No.1 bracket and the No.2 bracket are fixed through a push cart, and when pipes and power lines are paved, the push cart is promoted to go forwards, so that unfoldederection of the air inlet pipes and the water inlet pipes can be realized, the air inlet pipes and the water inlet pipes are all connected in series through a fixing seat, integrated erection of thepipes and the power lines is facilitated, and the mounting difficulty is low.

The invention provides a method for monitoring and evaluating the vibration of a TBM cutter head, belonging to the technical field of TBM vibration testing. By building a remote data acquisition system, the remote real-time acquisition of TBM cutter head vibration data is realized. At the same time, according to the vibration monitoring data of different construction sections, combined with TBM tunneling parameters, geological reports, etc., the working conditions and geological divisions are carried out. The rock breaking load of the cutter head and hob under different surrounding rock conditions is studied, and the evaluation method of the cutter head vibration level under different working conditions, namely the vibration limit value, is determined through finite element and dynamic simulation. Prevent engineering problems such as TBM cutter head damage caused by excessive vibration, and ensure safe and reliable excavation of construction equipment.

The invention discloses a concrete cast-in-place pile rectification method and a raft foundation cast-in-place pile construction method, and relates to the field of pile foundation engineering. According to the scheme to deal with the excessive deviation of the pile foundation construction position, as for the concrete cast-in-place pile rectification method, the pile cap raft foundation superstructure is reinforced and improved, the number of rebars in a raft connected with a concrete cast-in-place pile cap is increased, and the added rebars are arranged in both directions on the upper surface and the lower surface of a raft foundation. The raft foundation cast-in-place pile construction method further solve the problem that groundwater or mud enters a sinking pipe during the construction of the sinking pipe cast-in-place pile, and the construction efficiency and quality are affected. According to the scheme of the raft foundation cast-in-place pile construction method, during the construction of the sinking pipe cast-in-place piles, dry concrete is replaced by pile boots. In addition, pre-drilling is implemented by adopting a spiral drill, and the normal implementation of sinking operation is ensured; a limiting rebar is connected to the outer side of the main reinforcement of the cast-in-place pile rebar cage to replace a concrete cushion block; and the main reinforcement at the top of the cast-in-place pile is bent to a straight section to improve the embedded effect of the pile cap in the raft foundation.

The construction method of double-low concrete and metal net cage composite ground base is characterized by laying woven galvanized wire net cage on the natural ground base to be treated, then depositing a layer of double-low concrete to form composite ground base plate, the thickness of said ground base plate is dependent on the requirements of the engineering. Said soft ground base treatment method is simple in construction process, quick in construction speed and low in engineering cost. The treated ground base is good in elasticity, small in settlement and its bearing capacity can be raised. Said invention can be used for treating soft ground base in the road construction in coasted area and swamp, etc.

The invention provides a tunnel construction ventilation dust-removing device, and relates to the technical field of tunnel construction assisting devices. A plurality of air inlet pipes are connectedin series, the air inlet pipes at one end heads are fixedly arranged at the outlet end of an air pump in a sleeving manner, the air pump is fixedly arranged on the ground, a plurality of water inletpipes are connected in series, the water inlet pipes at one ends are fixedly arranged at the outlet end of a water pump, and the water pump is fixedly arranged on the ground; the air inlet pipes and the water inlet pipes are arranged on a storage assembly in a winding manner, the air inlet pipes and the water inlet pipes are arranged on a support assembly in a penetrating manner, and the air inletpipes are arranged below the water inlet pipes; the air inlet pipes are arranged on No.1 rotating shafts on a No.1 bracket in a winding manner, and the water inlet pipes are arranged on No.2 rotatingshafts on a No.2 bracket; and the No.1 bracket and the No.2 bracket are fixed through a push cart, and when pipes and power lines are paved, the push cart is promoted to go forwards, so that unfoldederection of the air inlet pipes and the water inlet pipes can be realized, the air inlet pipes and the water inlet pipes are all connected in series through a fixing seat, integrated erection of thepipes and the power lines is facilitated, and the mounting difficulty is low.

The invention provides a two-way cavity reinforced concrete plate and a manufacturing method thereof and belongs to the field of building engineering. The two-way cavity reinforced concrete plate comprises a plate main body and two steel bar nets. The plate main body comprises a first width side face, a second width side face, a first length side face and a second length side face, wherein the first width side face and the second width side face are arranged oppositely, and the first length side face and the second length side face are arranged oppositely. A plurality of longitudinal hole channels and a plurality of transverse hole channels are formed in the plate main body. Two ports of each longitudinal hole channel are located on the first length side face and the second length side face correspondingly. Two ports of each transverse hole channel are located on the first width side face and the second width side face correspondingly. The multiple longitudinal hole channels and the multiple transverse hole channels communicate at intersections and are located between the two steel bar nets. The two-way cavity reinforced concrete plate has the advantages of two-way force bearing, hollow plate web, large span, fabricated construction, good heat preservation, heat insulation and sound insulation properties and the like.