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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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 9. Отображено 9.
07-04-2023 дата публикации

Steel truss girder cable-stayed bridge vertical rotation construction method

Номер: CN115928610A
Автор: QIANG WEILIANG, GAO PU, ZHOU JUNLONG, XIE PENGLIN, GENG WENBIN, LI XIAOLEI, LI LINTING
Принадлежит:

The invention relates to a vertical rotation construction method for a steel truss girder cable-stayed bridge. The method comprises the specific steps that S1, auxiliary measures are adopted for construction, wherein auxiliary measures comprise a steel girder splicing platform, a temporary hinge, a buckling and hanging system, a tower top crane and a horizontal jack assembly; s2, symmetrically and vertically assembling partial segments of the main beam; s3, symmetrically and vertically rotating partial sections of the main beam; s4, mounting the rest sections of the main beam; s5, stay cables are installed; and S6, removing auxiliary construction measures. The tower top crane and the buckling and hanging system are used for achieving vertical assembling and symmetrical rotating construction of the main beams of the steel truss girder cable-stayed bridge, the assembling speed of the steel beams is high, the linear control precision is high, large overwater hoisting machinery is not needed ...

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Номер записи: 1
06-06-2023 дата публикации

Steel truss girder suspension bridge first girder and second cable construction method

Номер: CN116219904A
Автор: QIANG WEILIANG, GAO PU, ZHOU JUNLONG, XIE PENGLIN, GENG WENBIN, LI XIAOLEI, LI LINTING
Принадлежит:

The invention relates to a steel truss girder suspension bridge girder-first and cable-second construction method, which comprises the following steps of: firstly, symmetrically and vertically splicing a girder part section on two sides of a main tower by using an auxiliary tower frame, initially rotating by using a horizontal jack, then unloading and rotating to be horizontal by using a buckling and hanging system, hoisting the girder section and a midspan closure section in a main tower area, and finally hoisting the girder section and the midspan closure section in the main tower area; and installing a main cable by using an auxiliary tower, then installing a sling, and finally removing auxiliary measures. The method has the advantages that the steel beam splicing speed is high, the linear control precision is high, large-scale overwater hoisting machinery is not needed, temporary supports are arranged in water, the number of temporary facilities is small, the economical efficiency is ...

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Номер записи: 2
11-07-2023 дата публикации

Cable bent tower column linear construction control method

Номер: CN116411520A
Автор: CAO HAIQING, ZHAO LEI, LU JUN, LI LINTING, WANG XINCHUAN, WANG WEI, YOU YUFANG
Принадлежит:

Therefore, according to the cable bent tower column linear construction control method provided by the invention, the linear shape of the tower column is controlled through the transverse supporting system and the opposite pulling system in the construction process, and linear construction of the cable bent tower is realized; construction is convenient, and the influence of the cross brace on the surface of the cable bent tower can be reduced. The cable bent tower comprises a lower tower column, a middle tower column, an upper tower column and a lower cross beam; the lower cross beam is used for connecting two lower tower columns; the two lower tower columns incline outwards from the tower base, and in the construction process of the lower tower columns, a horizontal opposite-pulling system is arranged between the two lower tower columns; the two middle tower columns above the lower cross beam incline inwards, and in the construction process of the middle tower columns, multiple layers ...

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Номер записи: 3
07-07-2023 дата публикации

Synchronous construction method for tower beams of special-shaped steel tower cable-stayed bridge

Номер: CN116397539A
Автор: LIU XIAOMIN, XIE PENGLIN, ZHOU JUNLONG, CAO HAIQING, LI LINTING, ZENG YINYONG, ZHAO LEI, LI BING, LI XIAOPENG, ZHAO XU, JIANG WEI, ZHANG DING
Принадлежит:

The invention belongs to the technical field of bridge design and construction, and particularly relates to a special-shaped steel tower cable-stayed bridge tower beam synchronous construction method which comprises the following steps that a cable-stayed bridge main beam support, a steel tower support and a gantry crane foundation are synchronously erected; a gantry crane rail is laid on the gantry crane foundation, and a gantry crane is installed; mounting a steel-concrete combined section of the swivel steel tower and pouring concrete; installing a swivel steel tower T1 section, and testing a swivel; a cable-stayed bridge main beam is poured, and the remaining steel tower sections are spliced section by section through the gantry crane; mounting a latticed column and a latticed column jack, and vertically rotating and closing the steel tower; stay cables are installed and tensioned, and accessory structures are dismantled; and bridge deck pavement is installed, and construction of the ...

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Номер записи: 4
04-07-2023 дата публикации

Device and method for producing nano calcium carbonate through composite carbonization of opposed even number of nozzles

Номер: CN116371345A
Автор: YAN XIN, LIU BAOLIN, LIU YI, CHEN ZAN, LI LINTING, LEE HAE-RAN
Принадлежит:

The invention discloses a device for producing nano calcium carbonate through composite carbonization of opposed even nozzles. The device comprises a pre-carbonization kettle body, a cleaning nozzle is arranged at the top end of the pre-carbonization kettle body, and a seed crystal outlet is formed in the bottom end of the pre-carbonization kettle body; a carbonizer nozzle and a calcium source nozzle are arranged in the pre-carbonization kettle, and are in central symmetry by taking the center of the interior of the pre-carbonization kettle body as the center. The key of the unique structure of the pre-carbonization kettle provided by the invention is that a pair of nozzles which are coplanar, coaxial, opposite and symmetrical on the left and right sides or two pairs of nozzles which are coplanar, coaxial, opposite and symmetrical on the left, right, front and back sides can be formed, the same amount of carbonizer and calcium source can be sprayed into each pair of nozzles, and a stirring ...

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Номер записи: 5
14-07-2023 дата публикации

Modularized floating platform connecting device and connecting method

Номер: CN116424503A
Автор: XIE PENGLIN, ZHAO XU, LIU XIAOMIN, ZHOU JUNLONG, LI LINTING, LI XIAOPENG, CAI SONGBAO, BAI WANSHUAI, CHEN ZHE
Принадлежит:

The modular floating platform connecting device comprises a plurality of steel floating boxes, convex steel wedge blocks are connected to the four corners of each steel floating box, and the steel floating boxes are connected through a plurality of corner connectors and a plurality of edge connectors; each corner connector comprises a square connecting plate, and square connecting plate grooves matched with the convex steel wedges are formed in the four side faces of each square connecting plate. Each edge connector comprises a blade connecting piece inserting groove, grooves are formed in the side edges of the steel floating boxes, the blade connecting piece inserting grooves are formed in the grooves, blade type connecting pieces are installed in the blade connecting piece inserting grooves, and the side edges of the adjacent steel floating boxes are connected through the blade type connecting pieces. The device is simple in structure, light in weight, reusable, low in manufacturing cost ...

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Номер записи: 6
21-07-2023 дата публикации

Deepwater foundation auxiliary construction structure and construction method thereof

Номер: CN116464011A
Автор: QIANG WEILIANG, GAO PU, ZHOU JUNLONG, XIE PENGLIN, GENG WENBIN, LI XIAOLEI, LI LINTING
Принадлежит:

The invention relates to a deepwater foundation auxiliary construction structure and a construction method thereof. The construction structure comprises a central platform truss, side platform trusses, temporary steel pipe piles, a hoisting device, a temporary fixed connection part, a platform panel, a gantry crane, a steel casing, a drilling machine, a cast-in-situ bored pile, a cofferdam wall body and an inner support. During construction, the center platform truss and the side platform trusses are of an integrated structure to conduct cast-in-situ bored pile construction, after construction is completed, the center platform truss and the side platform trusses are separated, the center platform truss sinks to serve as a bottom plate of the cofferdam structure, construction of the cofferdam structure is conducted, and finally a bearing platform and a pier are constructed. The center platform truss and the side platform trusses are prefabricated in a factory and transported to the site ...

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Номер записи: 7
25-07-2023 дата публикации

Deepwater inclined uneven bare rock area steel casing positioning device and pile foundation hole forming method

Номер: CN116479888A
Автор: QIANG WEILIANG, GAO PU, ZHOU JUNLONG, XIE PENGLIN, GENG WENBIN, LI XIAOLEI, LI LINTING
Принадлежит:

The invention discloses a steel casing positioning device and a pile foundation hole forming method in a deepwater inclined uneven bare rock area. The positioning device comprises an underwater steel jacket box, an anti-sliding steel pile, foundation fixing concrete, an outer casing, an inner casing, leakage stopping concrete and a bedrock inner reaming hole. During pile foundation hole forming, firstly, the underwater steel jacket box is tightly attached to the inclined bedrock face, then foundation fixing concrete is poured, then the outer pile casing is inserted into the foundation fixing concrete, the outer pile casing is fixed to the inclined bedrock face after hardening, then a percussion drill is used for completing bedrock inner reaming, the inner pile casing is put down, and leakage stopping concrete is poured. Conditions are provided for hole forming of the percussion drill. The steel casing is firmly fixed, does not leak slurry, can enter rock, solves the problems that the steel ...

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Номер записи: 8
14-04-2023 дата публикации

Ceiling lamp

Номер: CN115962436A
Автор: WU LIANGJU, LI LINTING, FENG WENQIN
Принадлежит:

The ceiling lamp suitable for being fixed to the lamp accessory is compact in structure and allows a user to adjust the irradiation direction of light emitted by the ceiling lamp according to needs.

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Номер записи: 9