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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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13-06-2023 дата публикации

Anti-collapse treatment method for abutment back backfill sand of reconstructed and expanded bridge abutment

Номер: CN116254785A
Автор: WANG PENG, SUO WENMING, FAN XIAOPEI, SUN BIAN, SU WEILIN, KONG LEI, XU QIAN, ZHANG YANG
Принадлежит:

The invention discloses an abutment back backfill sand anti-collapse treatment method for a reconstructed and expanded abutment, which comprises the following steps of: 1) manufacturing a supporting steel plate and fixing the supporting steel plate on the abutment back side, 2) drilling a grouting hole and pressing a grouting pipe, 3) completely plugging the side surface of a half-width abutment which is opened with a vehicle by using cement mortar, 4) grouting the grouting pipes one by one, and 5) filling the grouting pipes into the grouting holes. And (5) abutment back backfill sand anti-collapse treatment of the other half abutment is completed. The construction cost is greatly reduced, the backfill sand is effectively prevented from collapsing, the construction efficiency and the construction quality are remarkably improved, and the pavement flatness and the vehicle passing safety are improved.

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Номер записи: 1
02-05-2023 дата публикации

Bridge abutment lifting construction method for reconstruction and extension of expressway

Номер: CN116043729A
Автор: LI HONGJUN, WANG PENG, SUO WENMING, FAN XIAOPEI, SUN BIAN, SU WEILIN, LIU CHUNYAN, PENG JIANFANG, YAO JUAN, NI ZHOUJIE
Принадлежит:

The invention discloses a bridge abutment lifting construction method for highway reconstruction and extension. The method comprises the following steps that supporting and protecting walls are driven into middle separation belts of a highway respectively, and then half old roadbeds are excavated to the bottom faces of the roadbeds respectively; (2) construction of a plurality of drilled piles, a half new bearing platform, a plurality of bearing platform bodies, a cap beam, a back wall and a lug wall is completed in sequence, earthwork filling and connecting beam plate erecting are completed, and normal traffic of a reconstructed half pavement is achieved firstly, and (3) lifting reconstruction construction of the other half new bearing platform is completed. According to the method, the problem that the other half of the new bearing platform cannot continue to be communicated when the half of the new bearing platform is lifted for construction is solved, meanwhile, it is guaranteed that ...

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Номер записи: 2