653results about How to "Guarantee the construction progress" patented technology

The invention discloses a high-altitude long-span roofing pipe truss installation method which comprises the following steps: firstly, assembling pipe trusses on the ground, then arranging a construction platform beam at the high-altitude assembling pipe truss; adopting a movable tower crane to hoist the pipe trusses, and hoisting two sections of pipe trusses on an assembling bracket and a reinforced concrete stand column; finally, conducting high-altitude joint, assembly and welding on the pipe trusses; and after passing welding inspection, moving the assembling bracket to the next axis and conducting installation of the next pipe trusses. The high-altitude long-span roofing pipe truss installation method adopts ground segment assembly, movable tower crane hoisting and the high-altitude joint welding method, not only improves construction quality, guarantees construction process and safety, and simultaneously reduces construction cost.

The invention discloses a frame-type curtain wall rapid assembly construction method and system based on a BIM, and belongs to the field of curtain wall assembly construction. The to-be-solved technical problems are how to realize rapid assembly construction of a frame-type curtain wall and ensure the installation quality and performance of the curtain wall, according to the technical scheme, theframe-type curtain wall rapid assembly construction method includes the steps that three-dimensional model creation and adjustment of a curtain wall shell, curtain wall unit division, material component splitting and ordering are conducted through a BIM technology and a three-dimensional measurement technology, unit bodies of the frame-type curtain wall are assembled through centralized industrialprocessing, the processing quality of the frame-type curtain wall units is controlled by manufacturing standard parts, standard samples and using a three-dimensional scanning technology, site quick assembly construction of the frame-type curtain wall is completed through an integral hoisting technology, then treatment between layers is completed through a construction hanging basket or an elevating operating vehicle, and finally, rapid assembly construction operation of the frame-type curtain wall is realized. The invention further discloses the frame-type curtain wall rapid assembly construction system based on the BIM.

The invention discloses a water-rich weak surrounding rock long-and-big tunnel construction method. The method includes that a tunnel inclined shaft is arranged on one side of a main tunnel of a tunnel to be constructed, the main tunnel is divided into a tunnel entry section, a tunnel exit section and a middle connecting section connected between the tunnel entry section and the tunnel exit section, the middle connecting section is divided into an inclined shaft assisting construction entry section and an inclined shaft assisting construction exit section, and each of the tunnel entry section, the tunnel exit section, the inclined shaft assisting construction entry section and the inclined shaft assisting construction exit section is divided into multiple sections for construction. A construction method of each section includes: step 1, performing geological forecasting in advance, and when a debris flow formation exists ahead, entering a step 2, or else, entering a step 3; step 2, performing stability control construction; step 3, determining a primary supporting scheme; step 4, excavating the tunnel, and performing primary supporting construction; step 5, performing secondary lining construction on the tunnel. The water-rich weak surrounding rock long-big tunnel construction method is simple in step, reasonable in design, simple and convenient to construct, good in using effect, capable of meeting construction requirements of water-rich weak surrounding rock long-and-big tunnels, short in construction period and safe in construction process.

A job practice of which center island is done in sequence and partial skirts done inversely, comprising the following steps : set up exterior-protected construction, purlin and steel upright columns around the foundation ditch; dig on basin pattern for the first time to the depths to structural plane of purlin, earthwork are unified dig beneath the designed to the surrounding medium plate in the foundation ditch, pour the surrounding medium plate; dig for the second time with basin pattern downwards from the position of foundation ditch medium plate to the bottom of the designed foundation ditch, pour the center island plate; after the center island plate meets the maintenance time request of plate, construct in sequence to close the medium plate, setting fetching holes; then use medium plate for support system, construct criss-cross structural upper plate and plates in inverse zones. This construction method is convenient, save labor force and resources, improves the progress of the project, shorten the construction period.

The invention discloses a self-climbing tower crane, which comprises a tower body (1), a hoisting arm (2) and a climbing mechanism, wherein the climbing mechanism comprises a main stressed supporting steel beam (4) and a steel structure climbing attached frame (5); the steel structure climbing attached frame (5) is fixedly connected on the main stressed supporting steel beam (4) and is provided with a jacking cylinder (8) and a supporting steel beam (9); and a tower body supporting tread (10) is arranged on a tower body (1), and the bottom of the tower body (1) is provided with a climbing base section (11). The self-climbing tower crane can climb upward along a constructed structure by using the constructed building structure as a support, meet the requirements of superhigh-rise and out-of-code tall buildings on vertical transportation at the whole construction height, contribute to construction efficiency, construction period reduction, steel conservation and energy conservation and create obvious economic and social benefits.

The invention discloses a formwork system of shear walls at two sides of an extensible seam. The formwork system of the shear walls at the two sides of the extensible seam comprises two sets of wall body pouring formworks arranged symmetrically with the extensible seam as a symmetric axis, side face fastening steel tubes and end portion fastening steel tubes, wherein, the side face fastening steel tubes and the end portion fastening steel tubes are used for fixing the wall body pouring formworks. Each set of the wall body pouring formwork is respectively enclosed by an outer side formwork, an inner side formwork and an end portion formwork. A support block is respectively arranged between the outer side formwork and the inner side formwork in each set of the wall body pouring formwork and each outer side formwork and each inner side formwork are fastened through each transverse fastening steel tube, each side face fastening steel tube and a split bolt. Each end portion formwork is pressed on each outer side formwork and each inner side formwork through the end portion fastening steel tubes, bolt rods and match of end portion movable nuts on the bolt rods. According to the formwork system of the shear walls at the two sides of the extensible seam, the formworks at the two sides of the extensible seam can be erected by once in a narrow space, construction period is greatly shortened, engineering cost is reduced, and the formwork system is not limited by the size of the extensible seam and particularly applicable to the condition that the extensible seam is small.

The invention relates to a manufacturing method of a double-anchor box type external node chord member. The double-anchor box type external node chord member is manufactured according to the steps of S1) blanking, S2) machining, S3) flat plate drilling, S4) web receiving and machining, S5) plate unit assembly welding and S6) chord member assembly welding. As nodes are mounted out of anchor boxes connected with stay cables on the chord member to avoid from the connecting places between the anchor boxes and the stay cables, the anchor boxes cannot be interfered with the nodes, the installation of the stay cables of a bridge and the welding of node plates are not mutually interfered, and the construction progress of the bridge is guaranteed.

The invention relates to fundamental construction, in particular to a pulling-out method of underground piles. A pulling-out method of underground piles by sleeving, vibrating and punching is characterized by including the following steps: firstly, a sleeve is made, a long steel pipe is used as the sleeve, the external wall of the long steel pipe is provided with a water pipe and a ventilating pipe, one end head of the long steel pipe is in a sawtooth shape, and the internal wall of the long steel pipe is provided with a steel wire; secondly, the pile head position of an underground pile is determined, and soil is removed and backfilled; thirdly, a steel sleeve is vibrated and sunken, a caterpillar-band hoist is used for hanging a vibrating hammer to vibrate the sunken sleeve to enable the sleeve to sleeve the underground pile, and after the sleeve is positioned, the vibrating hammer is removed; fourthly, the pile is pulled out, after the sleeve sleeves the pile completely, the caterpillar-band hoist is used for contracting the steel wire to hoist; fifthly, the steel sleeve is pulled out by vibrating, the vibrating hammer is started up, and the caterpillar-band hoist is used for hoisting to pull out the steel sleeve with vibrating; and sixthly, a pile hole is levelly filled, and a disturbing area is processed. The invention can successfully pull out underground piles to remove the obstacle for construction.

The invention provides a movable construction platform for bridge foundation building. The movable construction platform for bridge foundation building comprises floating bodies, horizontal support frameworks, horizontal backing plates, a lifting system, temporary fixing devices and support body systems; the horizontal support frameworks are laid on the upper surfaces of the floating bodies, the horizontal backing plates are laid on the upper surfaces of the horizontal support frameworks, filling pile holes formed according to bridge foundation building are formed in the horizontal backing plates, the lifting system is erected on the horizontal backing plates, and the support body systems are arranged on the peripheries of the floating bodies; each support body system comprises an anchor head, a support leg, support seats, hydraulic lifting equipment and bolt pins, wherein bolt pin holes longitudinally extending in a separated mode are formed in the support leg, through holes correspondingly communicated with the bolt pin holes are formed in the support seats, and the bolt pins are correspondingly inserted into the bolt pin holes and the through holes which are communicated with each other. The movable construction platform for bridge foundation building has the advantages that the platform can be steadily and firmly fixed on the construction water surface, cannot be shaken under the influences of tides or waves when construction is performed and is suitable for arrangement of various filling piles in bridge building; in addition, the size of the platform can be regulated, and construction is easy.

The invention relates to a material hoisting device for a tunnel boring machine. The material hoisting device for the tunnel boring machine comprises a guide rail mechanism, a power mechanism, a driven mechanism and a craning mechanism, wherein the guide rail mechanism comprises a guide rail and a first transmission part, the power mechanism comprises a power device and a connecting rod, the driven mechanism comprises a driven device and a driven machine frame, the craning mechanism comprises a balance frame, a hydraulic cylinder and a reverser. The reverser comprises a pulley wheel, a steel wire rope and a pulley wheel seat. Extension motion of the hydraulic cylinder is converted into lifting motion of the balance frame through the reversing of the steel wire rope and the pulley wheel, and accordingly material lifting is achieved. The power device and the first transmission part perform matched motion through the second transmission part to produce stable power, the stable power is acted on the driven mechanism through the connecting rod to enable the driven mechanism to drive the whole hoisting device to move together with the driven mechanism, and accordingly transportation of materials in the track direction is achieved. The material hoisting device for the tunnel boring machine has the advantages of being simple in structure, safe, reliable and high in efficiency, the problem that the materials and multiple tube pieces cannot be stably hoisted in a limited space at the same time is solved, and accordingly a construction schedule and the construction efficiency of the tunnel boring machine are guaranteed.

The invention discloses a non-cured rubber asphalt waterproof paint and a preparation method thereof. The preparation method comprises the following steps: 1) weighing a matrix asphalt, a softener, an elastic plastic body, an adhesion agent, a functional polymer, a stabilizing agent and a filling material; 2)injecting the matrix asphalt to a reaction vessel, heating the materials, stirring the materials, adding the softener, and stirring the materials; 3) adding the obtained mixture and the elastic plastic body in a colloid grinder, growing the materials, opening the colloid grinder, grinding the materials, and continuously growing the materials; 4) adding an adhesion agent and a functional polymer, continuously stirring the materials; 5) adding a filling material and stirring the materials; and 6) adding a stabilizing agent, and stirring the material. The paint has high heat resistance, good construction property, good thermostability, chemical stability and anti-ultraviolet aging capability, bond property is not influenced due to extraneous environment, the paint has construction property for a wet basic layer, can increase the interfacial affinity interaction with the wet basic layer, and construction quality and progress can be effectively guaranteed, and the paint is environmentally friendly.

The invention discloses an underground integrated pipeline non-standard rectangular connector determination method based on BIM (Building Information Modeling), which is implemented according to the following steps: step 1, creating an underground integrated pipeline model based on the BIM, and reserving space for the non-standard rectangular connector; step 2, automatically obtaining the specifications of all pipelines; step 3, obtaining the spatial coordinates of the pipelines; step 4, determining two ports connected with the non-standard rectangular connector; step 5, calculating the spatial coordinates of two pipelines corresponding to four vertices of the ports; and step 6, determining four planes according to all vertices, so as to obtain a three-dimensional model of the non-standard rectangular connector connecting the two pipelines. Through adoption of the method of the invention, the rectangular connector is quickly, exactly and automatically generated in a BIM platform according to spatial positions of the two pipelines, which improves designing efficiency and quickens construction progress.

The invention discloses a steel pipe column bearing table girder connection construction method. The method comprises the following steps of: paving a bottom plate cushioning layer; mounting a steel pipe column bottom plate in a bearing table foundation pit; building a bearing table ring girder reinforcing steel bar processing frame around the bearing table foundation pit; binding bearing table ring girder reinforcing steel bars on the bearing table ring girder reinforcing steel bar processing frame; setting a foundation beam supporting frame between a ring girder and a main girder connection; binding foundation girder reinforcing steel bars on a foundation girder supporting frame; hoisting a steel pipe column into each bearing table ring girder reinforcing steel bar and welding the steel pipe column on the steel pipe column bottom plate; and unloading the bearing table ring girder reinforcing steel bars and the foundation girder reinforcing steel bars as a whole. Due to the adoption of the steel pipe column bearing table girder connection construction method, the steel pipe column bearing table girder connection construction method which is convenient for construction is realized. The method has the advantages of convenience and quickness in construction, high construction speed, high quality and high stability.

The invention belongs to the technical field of laneway blasting, and particularly relates to a one-time-formed smooth blasting method for a laneway. The method comprises the steps of firstly tunneling into the rock stratum, then laying out breaking-in holes, brukup boreholes and periphery holes, and detonating in sequence after powder charging. According to the method, the rhombic and square combined arrangement mode is adopted, the mutual clamping action among rocks during blasting of all sections can be weakened effectively, regular underholes can be formed, and larger compensation space is provided for subsequent large-scale breaking. According to the method, drill bits of different specifications do not need to be prepared for rock drilling, the underholing process and the blasting network design are advanced, the clamping action among the periphery holes during blasting is lowered, and smooth blasting is achieved; no root is left on the bottom edge of the laneway, the secondary repair amount of the laneway is reduced, the safety and the stability of the laneway are improved greatly, the laneway is formed at a time, labor productivity is improved, and construction progress and construction quality are guaranteed.

The invention discloses a light-type full-hydraulic drilling machine for underground drilling of a coal mine. The light-type full-hydraulic drilling machine comprises a stander, a drilling rod, a water braid, a guide rail, a propelling hydraulic cylinder, a hydraulic clamp and a drill power head, wherein the hydraulic clamp comprises a clamp base, a supporting seat, a clamping hydraulic cylinder and a clamp clamping tile; the water braid comprises a water braid shell, a water braid shaft, a water braid hollow shaft, two anti-abrasion ring, an isolating ring, a front end cover, a rear end cover and an anti-abrasion sealing ring; the drill power head comprises a speed reduction box body, a connection frame, a gear shaft, a hollow stepped shaft, a hydraulic motor, a spring mounting seat, a spring limiting seat, an end face check ring, a gear, a disk-type spring group, a power head clamping tile and a clamping hydraulic cylinder. The light-type full-hydraulic drilling machine is compact in structure, convenient and low in cost; the energy consumption is reduced, the power transmission efficiency is improved, and the clamping force on the drilling rod is stable and reliable; the service lives of the anti-abrasion sealing ring and the water braid shaft can be prolonged, the replacement trouble is reduced, the construction progress and safe production are guaranteed, vibration of the drilling machine is reduced, and the drilling rod is prevented from being broken.

The invention provides an underground continuous wall grooving method under the soft soil and rock stratum combined geological conditions. The underground continuous wall grooving method comprises performing preparation work, wherein the preparation work comprises measurement and positioning, wall guide construction, division of groove sections of the underground continuous wall and slurry preparation; grabbing and digging the upper portion soft soil in the groove sections after slurry is injected into the groove sections and enabling the slurry to be added into groove holes along with unearthing; performing drilling and cutting on bottom hard rock stratums in the groove sections; breaking up the drilled hard rock stratums through a square hammer punching machine and performing groove repair; performing hole cleaning and hole cleaning acceptance by a slurry circulation method. According to the grabbing, drilling and punching combined underground continuous wall grooving construction method, grabbing, drilling and punching are combined with each other, grooving construction is performed on the different hardness of rock stratums through different constriction machines under the condition that the quality of the underground continuous wall grooving construction is ensured, and accordingly the construction capability of various common machines is fully utilized and the construction progress and quality of grooving is ensured; the influence on the surrounding environment of the punching grooving vibration can be effectively reduced; an expensive underground continuous wall groove milling machine does not need to be utilized and accordingly the construction cost can be effectively reduced.

The invention provides a piezoelectric asphalt concrete, which is composed of the following raw materials in parts by weight: 83 to 90 parts of aggregate, 4 to 6 parts of mineral powder, 2 to 4 parts of piezoelectric material, 1 to 2 parts of conductive material, and 3 to 5 parts of asphalt, wherein the total raw material part number is 100. The invention also provides two power generation pavement structures based on the piezoelectric asphalt concrete. The two power generation pavement structures utilize cooperation between the piezoelectric asphalt concrete and rod-shaped electrode or metal net electrode to achieve the electric energy collection. The piezoelectric asphalt concrete has a good economic property, and is suitable for being widely promoted and applied.