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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 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 2. Отображено 2.
05-05-2023 дата публикации

Test device and test method for shield tunnel synchronous grouting research

Номер: CN116068143A
Автор: WEI XINJIANG, ZHANG BIAO, WANG XIAO, DING ZHI, ZHU HANHUA, LIU YINGJING, WU XI
Принадлежит:

The invention discloses a test device and method for shield tunnel synchronous grouting research, and the device comprises a model main body unit which comprises a model box, a shield tail model, a shield tunnel model and a sliding assembly, and the shield tunnel model, the sliding assembly and the shield tail model are sequentially disposed at the bottom of the model box from bottom to top, a window allowing the shield tail model to be drawn out is formed right in front of the model box, a grouting hole is formed in the shield tail model, and a grouting communication hole is formed in the shield tunnel model; the grouting device is used for grouting the space generated by drawing the shield tail model through the grouting communication hole; the drawing device is connected with the shield tail model and used for drawing the shield tail model out of the model box; and the data measuring device comprises one or more of a mortar stress sensor, an earth pressure meter, a pore water pressure ...

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Номер записи: 1
04-08-2023 дата публикации

Construction method for large-range breaking of underground wall of subway station under bearing cover plate

Номер: CN116537595A
Автор: LUO PENG, LIU YINGJING, LIN TINGSONG, FENG CHAOQI, SHI FENGGEN, MA LIANG, CHEN ZHIQIANG, ZHU HANHUA
Принадлежит:

The invention provides a construction method for large-range breaking of a subway station ground wall under a bearing cover plate, and relates to the technical field of ground wall breaking. Comprising the steps that part of an existing ground wall is reserved to serve as a temporary vertical supporting underpinning column structure, bin division is conducted on a broken ground wall according to the position of the reserved temporary supporting underpinning column, skip bin breaking construction is conducted, the ground wall is cut off in a blocked mode through a static force rope saw, and hoisting construction of ground wall cutting blocks is completed through cross cooperation of a truck crane and a forklift. Reserved profile steel reinforced concrete underpinning column joints are constructed, and reserved ordinary reinforced concrete underpinning column joints are constructed; the local ground wall breaking body is used as a temporary supporting structure to carry out skip breaking ...

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Номер записи: 2