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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 16. Отображено 16.
25-08-2023 дата публикации

Thin-wall hollow high pier overturning type steel formwork platform system

Номер: CN116641540A
Принадлежит:

The invention relates to the technical field of thin-wall hollow piers, in particular to a thin-wall hollow high pier turning type steel formwork platform system which comprises a top platform body, a middle platform body and a bottom platform body, and strip-shaped side storage grooves are formed in the peripheral side walls of the top platform body, the middle platform body and the bottom platform body. According to the thin-wall hollow high pier overturning type steel formwork platform system, the electric control structure design is adopted, lifting and unfolding can be rapidly carried out, and operation is quite convenient and rapid; a stacked structure design is adopted, so that the external structure can be greatly reduced in idle hours, and transportation and storage are facilitated; strip-shaped side containing grooves internally provided with self-overturning climbing corridors are formed in the peripheral side walls, it can be guaranteed that lifting control and limiting can ...

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23-06-2023 дата публикации

Preset assembly type bracket for bridge 0 # block pouring and construction method

Номер: CN116289624A
Принадлежит:

The invention discloses a preset assembly type bracket for bridge 0 # block pouring and a construction method, and is suitable for the technical field of bridge 0 # block construction. Bracket steel boxes are symmetrically embedded in the two side walls of a pier body of a bridge pier in the upward direction of the bridge, opposite-pull-rod hole channels are reserved, triangular brackets arranged on the two side walls of the pier body are oppositely pulled through pull rods penetrating through the opposite-pull-rod hole channels, the upper end and the lower end of each triangular bracket are connected through a hanging base, and each hanging base comprises a hanging base body; a bracket shear key is arranged on the outer side of the hanging seat body, the bracket shear key is inserted into the bracket steel box in a matched mode, a bracket assembly is arranged over the hanging seat body, a through hole corresponding to the opposite-pull-rod hole channel is transversely formed in the bracket ...

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07-07-2023 дата публикации

Slurry purification, cyclic utilization and centralized discharge method for drilling construction of bridge pile group in inland waterway

Номер: CN116398071A
Принадлежит:

The invention discloses a slurry purification, cyclic utilization and centralized discharge method for drilling construction of a bridge pile group in an inland waterway. The method mainly comprises the following steps: making preparations, starting construction, performing cyclic construction, precipitating slurry, adding a slurry curing admixture, curing and forming the slurry, dehydrating, and stacking and cleaning solidified soil. Compared with a traditional mud treatment method, the mud purification, cyclic utilization and centralized discharge method for inland waterway bridge pile group drilling construction has the obvious advantages of being high in cyclic utilization efficiency, good in economical efficiency, free of pollution and the like.

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11-08-2023 дата публикации

Data clustering analysis method for string-shaped karst cave geological drilling detection and elastic wave CT scanning

Номер: CN116578895A
Принадлежит:

The invention discloses a data clustering analysis method for string-shaped karst cave geological drilling detection and elastic wave CT detection, and the method comprises the steps: firstly, selecting a proper position of a string-shaped karst cave engineering site for drilling, and converting the drilling data into elastic wave standard wave velocities corresponding to different geologies; then, elastic wave CT detection is carried out, and an elastic wave CT scanning image is obtained; extracting a CT value of each point in the image information; mixing the elastic wave standard wave velocity converted from the drilling data into the extracted CT value to obtain mixed data; marking the elastic wave standard wave velocity converted from the drilling data in the mixed data, and performing clustering analysis on the marked mixed data; according to a clustering analysis result, the consistency of a drilling result and an elastic wave CT detection result is judged; according to the method ...

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18-07-2023 дата публикации

Construction method of opening locking type steel pipe pile cofferdam

Номер: CN116446431A
Принадлежит:

The invention discloses a construction method of a fore shaft type steel pipe pile cofferdam, which is suitable for the field of foundation pit supporting and mainly comprises the steps of material entering inspection, survey lofting, fore shaft type steel pipe pile inserting and driving, installation of an inner supporting system and completion of installation of a fore shaft type steel pipe pile cofferdam supporting system. The construction method of the opening locking type steel pipe pile cofferdam has the remarkable water stopping effect and economical efficiency, and can be applied to foundation pit supporting work of a lower structure of bridge engineering.

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29-08-2023 дата публикации

Geological tube wave detection signal processing method for vertical string-shaped karst cave of karst landform

Номер: CN116660986A
Принадлежит:

The invention discloses a karst landform vertical string-shaped karst cave geological tube wave detection signal processing method, which is suitable for the field of geological exploration, and mainly comprises the following steps: firstly, carrying out wavelet threshold denoising method processing on karst landform vertical string-shaped karst cave geological tube wave detection signals to remove noise; performing mean filtering to obtain a direct pipe waveform and a reflection pipe waveform, and performing two-dimensional filtering and Fourier transform on the reflection pipe waveform to obtain an uplink reflection pipe waveform and a downlink reflection pipe waveform; and finally, analyzing the waveform to obtain a time-depth curve, a gravity center frequency-depth curve and a reflection coefficient-depth curve for quantitative interpretation of a tube wave detection result. Compared with a traditional tube wave signal processing method, the tube wave signal processing method has the ...

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11-07-2023 дата публикации

Fitting complementation method for string-shaped karst cave geological drilling detection and different physical wave detection data

Номер: CN116415161A
Принадлежит:

According to the fitting complementation method for string-shaped karst cave geological drilling detection and different physical wave detection data, the stratum distribution trend can be deeply analyzed, and data are provided for string-shaped karst cave foundation pit supporting and foundation design; the method comprises the following steps: firstly, classifying the soil texture according to a string-shaped karst cave geological drilling detection result, performing hierarchical division on the soil texture of the same classification, and performing physical wave feature assignment on the soil texture of each layer; a physical wave detection instrument is adopted to conduct physical wave detection on the area where the drill hole is located; gaussian mixture clustering is carried out on detection data samples, and the samples are matched to different clusters; data assigned to drilling detection is substituted into a final model of Gaussian hybrid clustering; finally, whether the drilling ...

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08-08-2023 дата публикации

Sonar-assisted pile foundation detection auxiliary equipment under karst geological condition and detection method

Номер: CN116559882A
Принадлежит:

The invention relates to the technical field of auxiliary pile foundation detection, in particular to sonar auxiliary pile foundation detection auxiliary equipment under karst geological conditions and a detection method, and the sonar auxiliary pile foundation detection auxiliary equipment comprises a pile casing, a driving motor and a sonar detection probe connected with a monitoring unit through a communication cable. According to the sonar-assisted pile foundation detection auxiliary equipment under the karst geological condition and the detection method, the detachable structural design is adopted, installation and limiting can be carried out in the initial stage of pipe burying, then rapid separation is carried out after pipe burying is completed, and assembling, disassembling and repeated use are convenient; the inner wall of the hole is extruded and monitored in the descending process by adopting synchronous lifting, so that the conditions of hole walls at different positions and ...

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18-07-2023 дата публикации

Novel modeling method based on combination of drilling data and pipe wave detection for vertical string-shaped karst cave geology of karst landform

Номер: CN116449426A
Принадлежит:

The invention discloses a novel modeling method based on combination of drilling data and tube wave detection for karst landform vertical string-shaped karst cave geology, which is suitable for formation distribution determination of engineering exploration and provides data for processing and design of a foundation. The modeling method comprises the steps of project partition division, drilling data processing, tube wave detection, tube wave detection result processing and layering. And establishing a geologic model. The method can solve the problems of difficult stratigraphic layering and large error of the karst landform pipe wave detection data, has the outstanding advantages of accurate layering, small error, high efficiency and the like, and can be widely applied to geological exploration work of karst landform.

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30-05-2023 дата публикации

Locking type steel pipe pile cofferdam construction displacement monitoring and control method

Номер: CN116180823A
Принадлежит:

The invention discloses a method for monitoring and controlling construction displacement of a locking type steel pipe pile cofferdam, which is suitable for the field of foundation pit displacement monitoring and mainly comprises the steps of monitoring scheme planning, monitoring point arrangement and monitoring data extraction, monitoring data prediction and monitoring data early warning. The locking type steel pipe pile cofferdam construction displacement monitoring and control method has the remarkable advantages of being small in calculation error, high in accuracy, capable of saving time and the like, and can be applied to the field of foundation pit displacement monitoring.

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27-06-2023 дата публикации

Tower crane base designed based on adjacent underwater bearing platform foundations and building method

Номер: CN116335184A
Принадлежит:

The invention discloses a tower crane base designed based on adjacent underwater bearing platform foundations and a building method, is suitable for the field of tower crane construction, and mainly comprises a tower crane base structure designed based on the adjacent underwater bearing platform foundations and a tower crane base building method designed based on the adjacent underwater bearing platform foundations. According to the method, the construction cost can be obviously reduced, and better construction stability is achieved.

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30-06-2023 дата публикации

Construction equipment and construction method for pile foundation karst cave under karst geology

Номер: CN116356804A
Принадлежит:

The invention relates to the technical field of pile foundation karst cave treatment under the karst geology, in particular to pile foundation karst cave construction equipment and method used under the karst geology, and the pile foundation karst cave construction equipment comprises a pile casing, an overhead lifting motor, a sonar detection probe connected with a monitoring unit through a communication cable, an adjusting motor and an external conveying pipe used for conveying backfill powder. According to the pile foundation karst cave construction equipment used under the karst geology and the construction method, the slurry condition of a cast-in-situ bored pile is fully utilized, the development condition of a karst cave within 10 m of the pile bottom can be tracked and detected in the hole forming process, and the pile foundation karst cave construction equipment and the construction method have the advantages of being low in cost, high in speed, high in precision and the like; ...

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21-07-2023 дата публикации

Continuous beam bridge low pier curved surface hollow column lossless supporting formwork system and construction method

Номер: CN116463956A
Принадлежит:

The invention discloses a continuous beam bridge low pier curved surface hollow column lossless supporting formwork and a construction method, and is suitable for the field of pier formwork supporting. The supporting formwork system comprises a second-section pier body formwork supporting frame and an auxiliary support set, a bearing platform serves as a construction working face for pier body pouring and is fixedly supported by a cofferdam supporting body, and the second-section pier body formwork supporting frame comprises a vertical formwork supporting frame arranged in the left-right direction in the bridge direction and a curved face formwork supporting frame arranged in the left-right direction in the transverse bridge direction. The vertical formwork supporting frame is provided with a plurality of vertical supporting rods which are evenly distributed and fixed to the bearing beam, the upper ends and the lower ends of the vertical supporting rods arranged in the left-right direction ...

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06-06-2023 дата публикации

Pile foundation construction method for sectioning pile casing as required in vertical string-shaped karst cave area

Номер: CN116220090A
Принадлежит:

The invention discloses a pile foundation construction method for sectioning a pile casing according to needs in a vertical string-shaped karst cave area, which is suitable for the technical field of bridge building pile foundation construction and comprises the steps of construction preparation, in-place of a percussion drill pile machine, burying of a trepanning pile casing, sectioning follow-up construction of an inner pile casing protection net according to needs, manufacturing and mounting of a reinforcement cage and pouring of underwater concrete. The method specifically comprises the following steps that the type of a karst cave is identified, follow-up of the inner pile casing and the protection net is conducted, a plurality of inner pile casings are arranged in a segmented mode as needed according to the type of the corresponding karst cave below a main pier pile foundation, a protection net cylinder is connected between every two inner pile casings in a lap joint mode, and the ...

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04-08-2023 дата публикации

Hydraulic jacking integral type steel frame platform and rollover construction method thereof

Номер: CN116537071A
Принадлежит:

The invention relates to the technical field of bridge construction, in particular to a hydraulic jacking integral type steel frame platform and a rollover construction method thereof, and the hydraulic jacking integral type steel frame platform comprises an electric hoist, a jacking frame, a lower hanging bracket, a horizontal supporting rod, an inclined supporting rod, a roller supporting rod, a jack, a supporting rod and a lower anti-falling clamp holder. According to the hydraulic jacking integral type steel frame platform and the rollover construction method thereof, the landing supporting rods are adopted as supporting points, the requirement for the equal strength of newly-poured concrete is low, and the platform can climb after initial setting of the concrete, so that the construction period of pier body sections is shortened, and the construction progress is accelerated; the position of the jacking and hoisting mechanism can be adjusted by adopting an overhead translation mode, ...

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23-06-2023 дата публикации

Arched low-pier continuous beam bridge foundation and construction method

Номер: CN116289520A
Принадлежит:

The invention discloses an arched low-pier continuous beam bridge foundation and a construction method, and is suitable for the field of bridge pile foundation construction. The arched low-pier continuous beam bridge foundation comprises a continuous beam main body and a plurality of piers, the plurality of piers are arranged below the continuous beam main body and support the continuous beam main body, the plurality of piers comprise two main piers, each main pier is supported by a bearing platform, and a pile foundation structure is arranged below the bearing platform; a main pier is a low curved surface pier, the cross section of the low curved surface pier is gradually increased from a bearing platform to the lower portion of a continuous beam body, when the drawing force of the bearing platform and a pile foundation of the main pier is designed and calculated, the amplification influence of the low curved surface pier on the drawing force of the bearing platform and the pile foundation ...

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