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 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.

A prefabricated exterior wall dry-hanging node of a prefabricated building exterior wall, including a pre-embedded box embedded in a prefabricated exterior wall panel, a hook seat, and a connecting bolt, the embedded box is open to the side of the hook seat The hook seat is connected and fastened with the embedded sleeve in the main body of the building through connecting bolts, and the hook seat passes through the side opening of the embedded box to support the entire prefabricated exterior wall panel. The building body includes prefabricated beams or shear walls. The invention simplifies the construction process, improves the construction progress, has no external wall panel licking bricks and decorations fall off, has good safety performance, the external wall panel and its decoration can be integrated in the factory, no need for workers to perform high-altitude decoration operations, and the external wall dry-hanging connection strength High, waterproof performance, excellent build quality.

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 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 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 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 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 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 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.