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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.
09-05-2023 дата публикации

Deep foundation pit excavation side soil pressure coefficient measuring device and use method

Номер: CN116084473A
Автор: GUO DEPING, TANG JUNLIN, YAO CHAOFAN, ZHANG ZENG, QIAN JIAN, LI RUILIN, WANG FENG, LUO XUN, SHEN MINGLIANG, LIAO YANKAI
Принадлежит:

The invention discloses a deep foundation pit excavation side soil pressure coefficient measuring device and a using method. The device comprises a movable wall body, a control rod, a displacement sensor, a transverse soil pressure sensor and a vertical soil pressure sensor. The transverse soil pressure sensors are arranged on the soil facing side of the movable wall and are vertically arranged along the center line of the movable block, and the vertical soil pressure sensors are arranged on the inner wall of the deep foundation pit support structure and are arranged in a layered and staggered mode. Measurement by using the device comprises the following four steps: step 1, in an initial state of the deep foundation pit, reading initial values of the displacement sensor, the transverse soil pressure sensor and the vertical soil pressure sensor; 2, after excavation, according to a movable wall deformation curve, the position of a movable block is debugged layer by layer through a control ...

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Номер записи: 1
28-04-2023 дата публикации

Parallel well magnetic positioning device and positioning method based on wireframe magnetic source

Номер: CN116025339A
Автор: TANG JUNLIN
Принадлежит:

The invention discloses a parallel well magnetic positioning device and method based on a wireframe magnetic source, the positioning device comprises a magnetic source device and a detection device, the magnetic source device is arranged in a standard well and generates an alternating magnetic field during working, and the detection device is arranged in a to-be-drilled well and monitors the magnetic field intensity and direction of the alternating magnetic field in the standard well; the device is characterized in that the magnetic source device comprises a rectangular narrow wireframe, and the rectangular narrow wireframe generates an alternating magnetic field; the detection device is a measuring probe tube, is composed of a three-axis magnetometer and a three-axis accelerometer, and is used for monitoring the magnetic field intensity and direction of the alternating magnetic field generated by the rectangular narrow wireframe and the motion trail of the magnetic source device, and finally ...

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Номер записи: 2