10results about How to "Increase construction costs" patented technology

The application discloses a method for vibrating and sinking a pile pipe of a gravel pile, and comprises the following steps: step one, using a vibration hammer on a gravel pile ship to sink the pile pipe into the soil; step two, when the bottom of the pile pipe meets the soil with a larger compactness, and the vibration hammer cannot continue to sink the pile pipe to the design elevation even after reaching the maximum power of the equipment, calculating the additional vibration mass F 额 , that is, calculating the weight of the gravel to be filled into the pile pipe in advance; step three, filling the gravel with the weight of the additional vibration mass F 额 into the pile pipe; step four, continuing to use the vibration hammer to sink the pile pipe until the pile pipe is sunk to the design bottom elevation; and step five, adding the remaining gravel M 桩管 -F 额 into the pile pipe, and then performing a subsequent pipe pulling process. The gravel filled into the pile pipe in advance increases the vibration mass, so that the purpose of improving the penetration of the pile pipe in the pile sinking process is achieved.

The utility model relates to a kind of hoisting construction platform for pipe jacking construction, including support frame, work platform, truss car frame, truss car beam, electric hoist lifting device and counterweight;Work platform is horizontally fixed at the top of support frame, and the edge of work platform is fixed with multiple groups of lifting rings;Truss car frame is fixed and erected at the front and rear ends of support frame, and the front and rear two groups of truss car frames are jointly erected with a truss car beam, the truss car beam is located at the middle of support frame, and the front and rear ends of truss car beam respectively extend out work platform towards front and rear direction;The front end of truss car beam is provided with electric hoist lifting device, and the rear end of truss car beam is provided with counterweight.Overall hoisting can be carried out on work platform by crane, pre-assembling outside construction site can be realized, the limitation of platform erection at construction site is avoided, temporary erection and removal are not needed on site, deployment efficiency and structural stability are significantly improved, and good turnover performance is obtained.

This invention discloses a method for underwater high-pressure jet grouting for sealing water in rock-embedded cofferdams. The method involves first driving a large-diameter steel casing, drilling holes to the bottom of the cofferdam using a rotary drilling rig, filling the holes with sand, removing the large-diameter steel casing, and then driving small-diameter interlocking steel pipe piles. High-pressure jet grouting is then applied to the outside of the interlocking steel pipe piles for curing. This process further enhances the water-stopping performance of the sand body through the grout, and the two components blend together to form a strong water-stopping curtain, effectively improving the bearing capacity of the cofferdam foundation and the water-stopping effect. This method avoids the difficulty of ensuring effectiveness with traditional underwater concrete sealing and eliminates the need for expensive concrete, thus saving significant construction costs.

The present application relates to the technical field of shield construction, particularly to a slurry shield cutterhead mud cake digestion system based on ultrasonic waves, comprising an ultrasonic transducer assembly, a power module and a driving assembly, a plurality of ultrasonic transducer assemblies are respectively fixed at openings of cutterhead panels, each of the ultrasonic transducer assemblies comprises a protective shell cover and an ultrasonic transducer, a line protection tube is connected to the top of the protective shell cover, a waterproof joint is arranged in the protective shell cover and is plugged on a plug of the ultrasonic transducer, a connecting line is arranged in the line protection tube and extends into the protective shell and is connected to the waterproof joint. The cavitation effect of ultrasonic waves on the cutterhead mud cake in the circulating slurry is used to digest and peel off the cutterhead mud cake layer by layer, so that the cutterhead mud cake is removed.

The utility model discloses a polyline large-span exquisite steel glass curtain wall, including the back steel embedded plate, the back steel embedded plate is fixed on the building wall, the back steel embedded plate is welded with rectangular steel pipe through fixed connection frame, constitutes the support frame body structure, installs fixed steel pipe on the rectangular steel pipe, the utility model relates to glass curtain wall technical field, the beneficial effect of the case is: the existing glass curtain wall is mostly to adopt simple frame body type mounting structure, when the large-span curtain wall installation is carried out, the structural stability is poor, needs to use a large number of connecting components and installs fixed, not only will increase the construction cost, still can influence the use space and the aesthetic degree in the building interior, and the traditional glass curtain wall is single on the modelling, mostly is linear type design, is difficult to satisfy the pursuit of the modern building to the individualization, the unique appearance problem.

An anti-vandalism mounting system for monitoring water physical variables in open channels, which comprises: a first member, comprising a base with a plurality of perforations to introduce a plurality of anchoring means for fixing the first member to a system installation surface; a second member, which is fixed on the first member of the system by a plurality of anchoring means; a third member, arranged externally, which is attached to the first and second members from inside the system by anchoring means; and a fourth member, pivotally arranged in the lower part of the third member; wherein the first member comprises a plurality of compartments to house a plurality of devices for the operation of the system and for the monitoring of physical variables to be protected by the system; and wherein the system comprises an energy generating device and a plurality of safety devices, so that the fourth member is fixed to the third member of the system. A procedure for assembling an anti-vandalism mounting system for monitoring water physical variables in open channels.

The application provides a supporting and mining method compatible with caving method and filling method mining process, which comprises a coal mining machine, a conveyor, a dual-purpose filling support, a special end support, a transfer machine, a gangue blocking support and a unit support, the dual-purpose filling support is arranged into an end filling support and a middle filling support, along the mining length, and is divided into a caving section and a filling section according to the mining requirement; when being in the caving section, the state of the dual-purpose filling support and the special end support is changed, and the caving method is used for construction; when being in the filling section, the state of the dual-purpose filling support and the special end support is changed again, and the filling method is used for construction, and the corresponding filling blocking structure is arranged in the gob-side entry retaining, the method can be compatible with two kinds of coal mining conditions, and the equipment does not need to be replaced halfway.

This invention belongs to the field of steel structure construction technology and discloses a construction method for a concentric double-tube structure. The method involves dividing the concentric double-tube structure into multiple inner tubes and multiple outer tubes, and pre-installing a fixed working frame on each outer tube. One inner tube is then coaxially installed inside an outer tube in the vertical direction, ensuring that the inner and outer tubes are coaxial and not eccentric, thus guaranteeing the assembly quality of the concentric double-tube structure. The movable working frame is detachably installed on the inner and outer tubes, allowing for multiple disassemblies and reassemblies, saving construction costs. Using the movable working frame, workers can install the next inner tube onto the top of the previous inner tube. Similarly, the next outer tube is installed onto the top of the previous outer tube using the fixed working frame. As each inner and outer tube is installed alternately, the installation position of the movable working frame is continuously raised until all inner and outer tubes are assembled, improving construction efficiency and ensuring assembly quality.

This invention discloses a honeycomb hydrolysis catalyst suitable for coal gas desulfurization and its preparation method, belonging to the field of catalyst technology. The preparation method includes the following steps: (a) using TiO2, SiO2, silica-alumina molecular sieve, titanium-silicon molecular sieve (types 0-4) and Al2O3 as carriers, adding organic binders, molding aids, and water to mix together to obtain a slurry; (b) after aging and filtration, the mixed slurry is extruded into shape through a mold, then dried and calcined to prepare honeycomb catalysts with different pore numbers, wall thicknesses, and external dimensions. This honeycomb catalyst is used as the finished catalyst, or the honeycomb catalyst is further loaded with alkali metals, aged, dried, and calcined a second time to obtain the final catalyst, which is used as the finished catalyst. The catalyst of this invention has the characteristics of high porosity, low bed pressure drop, allowing operation at high space velocities, large single-tower coal gas processing capacity, long service life, and convenient loading.