5results about How to "Extend construction time" 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 discloses a civil air defense basement combat transition system which solves the problems that a temporarily-built wartime function room is low in construction speed and insufficient in anti-knock performance. The combat transition system comprises an underground open space composed of a warehouse top, a warehouse bottom and constructional columns, an anti-explosion wall is arranged between every two adjacent constructional columns, a temporary basement is defined by the multiple anti-explosion walls and the constructional columns, and assembly parts of the anti-explosion walls comprise an inner wall plate, an outer wall plate, an upper keel, a lower keel and foamed concrete. A cavity between the inner wallboard and the outer wallboard is filled with foamed concrete, and a mold expansion preventing structure is further arranged between the inner wallboard and the outer wallboard. Compared with the prior art, the peacetime and wartime function conversion guided by the scheme has the advantages that modular storage is adopted for main components, when conversion construction is needed, the construction time is shortened, and adopted materials have the characteristics of being light and small in size, so that the materials can be prepared at ordinary times and stored in a protective construction library nearby, and a material foundation is provided for peacetime and wartime function conversion.

The application discloses a vertical shaft concrete automatic sliding delivery and distribution device and belongs to the technical field of building construction machinery, which comprises a foundation, a vertical shaft is formed in the interior of the foundation, a suspension frame and a sliding delivery system are arranged above the foundation, the sliding delivery system comprises a bearing frame, a plurality of driving wheels are arranged at the bottom of the bearing frame, a concrete mixer is arranged above the bearing frame, a rotary flow divider is arranged at the bottom of the suspension frame and close to the position of the vertical shaft, a slanting chute which is in intercommunication is arranged between the rotary flow divider and the concrete mixer, a plurality of vibrators are arranged outside the slanting chute, a plurality of vertical shaft support frames are arranged in the interior of the vertical shaft, a sliding ash pipe is arranged at the bottom of the rotary flow divider, and a cross fixed frame is arranged in the interior of the vertical shaft support frame at the bottom of the vertical shaft; when the application is used, the distribution of the vertical shaft can be automatically completed, the distribution efficiency and construction time are improved, the underground operation personnel are reduced, and the safety is effectively improved.

This utility model discloses an installation and alignment device for T-bolts on large equipment foundations, belonging to the field of concrete foundation technology, and mainly used for the installation of large equipment foundations. The technical problem to be solved by this utility model is to provide an installation and alignment device for T-bolts on large equipment foundations, including a vertically arranged support column to enclose and form a T-bolt sleeve installation cavity. A T-bolt sleeve is provided inside the installation cavity. The support column includes a pre-embedded section and an extension section. The pre-embedded section is located within the secondary poured concrete, and a tie beam is provided between two adjacent pre-embedded sections at intervals along its length. One side of the T-bolt sleeve is fixedly connected to the tie beam. The extension section is located above the secondary poured concrete, and a alignment frame beam for hanging alignment lines is provided between two adjacent extension sections. This device can both fix the installation position of the T-bolt sleeve and be used as an alignment frame for aligning the T-bolt sleeve, improving installation accuracy and reducing material consumption.

The application discloses a high-pressure grouting device, which comprises a drill rod and a grouting pipe; the drill rod comprises a rod body, a drill bit fixed at the lower end of the rod body, and a sleeve fixed at the top surface of the drill bit and located in the rod body; the outer periphery of the drill rod is provided with a grouting pipe, the inner periphery of the drill rod is provided with a baffle for blocking the grouting pipe, the baffle is connected to the sleeve through a pressure spring, the side surface of the baffle is provided with a conveying pipe, the outer periphery of the sleeve is provided with a secondary grouting pipe, and the secondary grouting pipe is connected to the conveying pipe; the grouting pipe can be inserted into the rod body and detachably connected to the sleeve through a locking plate. The lower end of the rod body is closed by the drill bit, the grouting pipe is connected to the sleeve, the drill rod and the sleeve are connected through a pipeline, and the transportation of slurry is realized, so that the slurry can be smoothly sprayed, the phenomenon that the grouting pipe extends to the outside of the rod body is avoided, the direct contact between the grouting pipe and various materials in the drill hole is avoided, and the probability of damage of the grouting pipe is effectively reduced.