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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 2. Отображено 2.
28-04-2023 дата публикации

Intelligent construction method for mechanical hole-forming cast-in-place pile

Номер: CN116025272A
Автор: ZHAN JINSHENG, SHI PENG, WANG XIAOLI, CHENG YINHANG, CHEN BO, ZHANG XINCHAO, HE PING, LIU KUN, FAN LIJIAN, HE WEI
Принадлежит:

The invention provides an intelligent construction method for a mechanical hole-forming cast-in-place pile. The pile foundation mechanical hole forming comprises the steps that firstly, before a drilling machine is in place, a proper drill bit is selected, whether display of all instruments is normal or not is checked, pile machine depth zero clearing is completed, a drill rod needs to be kept vertical and stable, the center point of the drill bit coincides with the pile position, and the axis of the drill rod coincides with the center line of the pile position; after centering, the walking system is locked; secondly, rotary drilling is carried out to form a hole, a rotary drilling bit extrudes and rotatably cuts into the soil body, muck is directly loaded into the drill bit, then the drill bit is lifted out of the hole through a drilling machine lifting device and a telescopic drilling rod to unload soil, and soil is taken and unloaded repeatedly and continuously till the designed depth ...

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Номер записи: 1
06-06-2023 дата публикации

Geopolymer regenerated mortar with fiber orientation structure and preparation method of geopolymer regenerated mortar

Номер: CN116217136A
Автор: LIU SHUAI, XU YUFEI, ZHAN JINSHENG, WANG XIAOLI, SHI PENG, ZHANG XINCHAO, XIA TAO, LU LELE
Принадлежит:

The invention belongs to the technical field of building materials, and particularly relates to geopolymer recycled mortar with a fiber orientation structure and a preparation method of the geopolymer recycled mortar. 100 to 300 parts of fly ash; 100 to 300 parts of mineral powder; 50 to 150 parts of an alkali activator; 4 to 10 parts of a retarder; 80 to 200 parts of water; and 0-80 parts of fiber. The mortar is prepared by the following method: weighing the raw materials meeting the particle size requirement according to the batch feeding amount, and mixing the recycled fine aggregate, the fly ash, the mineral powder, the alkali activator, the retarder, the fiber and the water; the mixture is put into a high-pressure injection molding instrument, and after the high-pressure injection molding instrument is filled, the mold is detached from the molding instrument; and putting the removed mold into a standard curing chamber for curing, then removing the mold, and putting the test block back ...

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Номер записи: 2