44results about How to "Verticality is easy to control" patented technology

The invention provides a basement outer wall single-side steel formwork supporting system and a construction method thereof, and relates to the technical filed of constructional engineering equipment. Aiming at the problems that the labor intensity of construction personnel is high and formwork supporting work efficiency is low existing in the available supporting system, the basement outer wall single-side steel formwork supporting system and the construction method thereof are provided. The basement outer wall single-side steel formwork supporting system comprises a pair of tracks, bases, and a plurality of supporting trusses, wherein the pair of tracks is laid at a foundation slab and parallel to an outer wall steel formwork, the bases are arranged on the tracks and can slide along the tracks, and the multiple supporting trusses are vertically arranged at intervals and are connected with the outer wall steel formwork; and bottom parts of the supporting trusses are hinged to the bases, and the supporting trusses are detachably connected with top ends of the bases through a plurality of adjusting rod pieces. The construction method comprises the steps that the steel formwork supporting system is spliced and fixed, after outer wall concrete is poured, a ground anchor assembly and a diagonal bracing are disassembled, an adjusting rod piece is retracted, so that the demoulded outer wall steel formwork are made to be supported on the base, and the next working section is started to continue pouring construction of outer wall concrete.

The invention relates to a construction method of a reinforced concrete current-poured pile. The method mainly comprises the steps that (1), a slurry protecting wall is drilled for hole forming, a drilling machine is used for drilling a hole in the hole forming process, and then the hole bottom is chambered through a branch tray forming machine; (2), the expanding end at the bottom of the pile is poured in an underwater concrete pouring mode; (3), a reinforcing cage is manufactured, stirrups are provided with reinforced protection cushion blocks at intervals, and a positioning support is formed; (4), inner side mould bags and outer side mould bags are attached to the inner side and the outer side of the positioning support respectively, and end boards are installed at the bottom of the positioning support; (5), the positioning support and the mould bags are pressed into the hole together; (6), micro-expansion concrete is poured in the space of the inner side mould bags and the outer side mould bags; (7), after the concrete of a pile body reaches the intensity, a pile top closing body and a cover board are constructed. The reinforcing cage is arranged in the reinforced concrete current-poured pile, the pile bearing capacity is improved, influence on the quality of the finished pile from foundation soil is reduced, the construction speed is high, quality is convenient to ensure, and good economic benefits and social benefits are obtained.

The invention discloses a construction method for embedding a latticed column through a reverse building method. The construction method is characterized by comprising the following steps that a positioning frame is customized, a field is flattened, a pile position is set out, a pile hole is formed, a reinforcement cage is placed downwards, the positioning frame is placed in place and corrected, the latticed column is placed downwards, the perpendicularity of the latticed column is adjusted, a guide pipe is placed downwards and secondary hole cleaning is conducted, concrete pouring is conducted, and protection work is conducted. By the adoption of the method, control over the perpendicularity of the latticed column embedded through the reverse building method is facilitated.

The invention discloses a reclamation area ultra-deep concrete diaphragm wall structure and a construction method thereof. The concrete diaphragm wall structure is in a ring shape, the concrete diaphragm wall structure comprises I type concrete diaphragm walls and II type concrete diaphragm walls which are arranged at intervals, the I type concrete diaphragm walls comprise I type groove sections,reinforcement cages arranged in the I type groove sections and cast-in-situ concrete, and the II type concrete diaphragm walls comprise II type groove sections, reinforcement cages arranged in the IItype groove sections and cast-in-situ concrete. Groove grasping technology construction can be conducted in advance, the construction main line time is not occupied, the construction efficiency is greatly improved, and the construction time is shortened. A reclamation area belongs to soft soil ground, soil reinforcement is conducted by using three-axis mixing before concrete diaphragm wall construction. Perpendicularity is well controlled, the width of sleeve connection is guaranteed, and later stage leakage is avoided. The formed concrete diaphragm wall structure is firm and durable, the safety level of a foundation pit support structure is the first level, and the importance factor is 1.1. The service life of the foundation pit temporary support structure is designed to be two years, andthe service life of the foundation pit support structure for permanent using is 50 years.

The invention discloses a steel protection tube following method under a deep water inclined rock surface condition. The method comprises the following steps: step one, building a drilling platform in a pier position, placing an impact drilling machine in a drilling pile position of the drilling platform, and flatly impacting and tamping a river bed surface of the drilling pile position of the drilling platform through the impact drilling machine; step two, putting the steel protection tube down, enabling the steel protection tube to be in contact with the flat rock surface, drilling a hole with depth of 30-50cm in the rock surface on the inner side of the steel protection tube by using a drilling head, lifting up the drilling head and mounting a driving device at the top of the steel protection tube, striking and driving in short distance by using the drilling head and enabling the steel protection tube to gradually enter the hole; and step three, repeatedly carrying out the step two and enabling the steel protection tube to gradually follow into the preset depth. The steel protection tube following method has the advantages of simple operation, low cost and easily controllable perpendicularity and plane position of the steel protection tube.

The invention discloses a foundation pile hole drilling construction process, which comprises the following technical flow processes of construction preparation, field flattening, pile position lofting, protection tube burying, drilling machine place taking, drilling, hole cleaning, hole forming quality checking, steel bar cage and catheter mounting, catheter mounting, secondary hole cleaning, underwater concrete filling, protection tube pulling and removing and pile forming quality checking. The foundation pile hole drilling construction process has the advantages that the construction time of the foundation engineering is shortened, the construction period pressure of a lower part structure is reduced, and in addition, a part of labor, machine and material investment is reduced, so the total construction cost of the project is reduced.

The invention relates to a method for treating soft soil foundation through deep compound vacuum pre-compaction. According to the method, a pressurizing system is improved on the basis of pressurized vacuum pre-compaction, a plastic draining plate substitutes a pressurizing filtration pipe, and a steel wire soft pipe substitutes a PVC (polyvinyl chloride) pipe in a transverse pressurizing system. The problems of difficulty in driving the pressurizing filtration pipe, difficulty in controlling perpendicularity and the like when a deep soil body is pressurized are mainly solved. The atmospheric pressure difference between a vertical draining plate in the pressurizing system and a vertical draining plate in a vacuumizing system is increased by pressurizing the deep soil body by the vertical draining plate in the pressurizing system, so that the radial seepage velocity of pore water is increased; furthermore, due to the fact that the pressurizing effect back flushes a sludge layer with relatively dense texture formed nearby the vertical draining plate during a vacuumizing period, the permeability is improved; meanwhile, due to the fact that mud particles contained in a membrane filtering pore of the vertical draining plate can also be reversely blown out through the pressurizing effect, the water permeability of the vertical draining plate is enhanced. The soft soil foundation can be relatively well treated.

The invention discloses a pre-buried latticed column verticality measurement construction method, and belongs to the technical field of building-construction. The steps of the pre-buried latticed column verticality measurement method includes that: pre-buried latticed columns are processed, a biaxial inclinometer is chosen, a sensor is calibrated, the inclinometer is assembled, a position is chosen for installation of the inclinometer, the pre-buried latticed columns and the inclinometer are installed and placed, biaxial inclination angles of the pre-buried latticed columns are measured and adjusted, after concrete pouring is finished, the inclinometer is detached, and the like. According to the pre-buried latticed column verticality measurement method, due to the facts that the inclinometer is arranged on the pre-buried latticed columns, in the construction process of the pre-buried latticed columns, angle ranges are regulated timely to enable the angle ranges to be within designed ranges according to the perpendicular angel changing displayed on a displayer, and then the pre-buried latticed columns are fixed, the accuracy and perpendicularity degree of the locating of the pre-buried latticed columns and the direction of the pre-buried latticed columns are convenient to control, and therefore the pre-buried latticed column verticality measurement method is applicable for construction of basements with large excavation depths, safety of building foundation pits, surrounding roads and pipelines is guaranteed, overall project construction progress is accelerated at the same time, project manufacture cost is saved, and economic benefit is improved.

The invention belongs to the technical field of building structural members, and particularly relates to a suspension type glass inner curtain wall. The suspension type glass inner curtain wall comprises a suspension rod, a suspension part and a glass panel, the upper end of the suspension rod is embedded in a ceiling in advance, the lower end of the suspension rod is connected with the suspension part, the suspension part is fixedly connected with the top end of the glass panel, and the suspension part can be a suspension claw or a mounting groove. The perpendicularity of the suspension type glass inner curtain wall can be controlled easily, support systems on the ground and fixing structures on the two side wall faces are of no need, and the suspension type glass inner curtain wall is not prone to falling and is transparent and tidy in structure. Further, the lower end of the two sides of the glass panel can be designed to be suspended in the air, no sanitation blind corners are formed, the glass panel can be detached conveniently, no traces are formed on a base board and walls when the glass panel is replaced, and the aesthetic requirements for modern interior decoration are met. The suspension type glass inner curtain wall has revolutionary significance in fundamentally solving the problems that the support system with high bearing capability is needed in the prior art and the perpendicularity of the glass panel is difficult to guarantee. Further, the suspension type glass inner curtain wall has good application prospects in the technical field of the building structural members.

The invention relates to an open caisson construction technology, a jack set is placed into a foundation pit, a concrete plate is placed at the upper end of the jack set, and the periphery of the foundation pit is filled with a lubrication water-stop agent which has the functions of reducing displacement of peripheral soil, increasing concrete sinking power and stopping water; the jack set has the function of adjusting the perpendicularity; the blade foot has the cut soil sinkingfunction; a computer monitoring system monitors the perpendicularity of the open caisson in real time by a perpendicularity monitoring point. According to the open caisson construction technology, the problems that in the conventional construction technologies the sinking speed cannot be controlled, the peripheral sinking is large, damage to the peripheral environment is large, the perpendicularity adjustment is inconvenient and inflexible and the construction quality cannot be guaranteed are solved, the construction is easy, and the cost is saved.

The invention discloses a soft soil foundation reinforcing method based on cement concrete cored piles. Multiple cement concrete cored piles, vertically distributed, are adopted to reinforce a soft soil foundation; and the method comprises the steps of: (1) prefabrication of the cored piles; (2) conveying of the cored piles; and (3) reinforcement of the foundation: the cement concrete cored pilesare constructed by adopting an integrated cored pile machine; and when any one cement concrete cored pile is constructed, six steps of placement of the pile machine in place, construction of cement stirring piles, shifting of the pile machine, installation of the cored piles, vertical placement of the cored piles and pressing of the piles are carried out. The method is simple in step, reasonable in design, convenient for construction, high in construction efficiency and excellent in use effect; after prefabrication of all the cored piles, the integrated cored pile machine finishes the construction of the cement stirring piles in the cement concrete cored piles and the pressing process of the cored piles, so that the construction speed is high; and the verticality of the cored piles in thepile pressing process is easily controlled, so that the quality of the formed cement concrete cored piles can be effectively guaranteed, and the reinforcing effect of the soft soil foundation is guaranteed.

The invention discloses a reactor pressure vessel integral top cover with an inner platform, comprising an integrated flange and a spherical head. A platform structure is integrally forged on the concave spherical surface of the spherical head, so that the concave spherical surface of the spherical head is gradually changed from a continuously gradual curved surface to a flat surface and then gradually changed to a continuous gradual curved surface. The platform structure is a solid body defined by a spherical surface and a circular plane, wherein the spherical surface of the platform structure and the concave spherical surface of the spherical head are integrally matched and connected, the circular plane of the platform structure is horizontally arranged, and the height of the circular plane in the vertical direction is higher than the height of the upper end surface of a flange in the vertical direction. The reactor pressure vessel integral top cover also comprises a tube socket mounting through hole penetrating through the spherical head and the platform structure, a tube socket inserted into the tube socket mounting through hole, and a circular tube socket weld, wherein the tube socket weld is arranged on the platform structure and covers the tube socket. The problem that vertical deviation of the tube socket caused by the traditional asymmetric weld is out of tolerance issolved.

The invention discloses a static pressure compaction pile construction method for collapsible loess geology, which adopts a plain soil compaction pile to treat a foundation, and performs static pressure compaction pile construction through original ground treatment, measurement positioning, static pressure pore forming, pore forming inspection, filler moisture content test, plain soil layered ramming and filling, comprehensive inspection and pile forming. The static pressure compaction pile construction problem of the collapsible loess geology is effectively solved, the construction is safe, the quality is reliable, the progress is fast, the input cost is low, and compared with traditional compaction pile construction methods such as hammering immersed tube hole forming, vibrating immersed tube hole forming and impact hole forming, the static pressure hole forming cost is high, and the construction efficiency is high. However, compared with a CFG pile and a prefabricated square pile with the same foundation treatment effect, the investment cost of the static pressure compaction pile is greatly reduced.