L68B3 Mast SectionTower Crane Foundation pouring safety precautions
1, Tower Crane Foundation Foundation bearing capacity should not be lower than the ground endurance value specified in the technical requirements of Tower Foundation drawing. 2. The pouring position of the Tower Crane Foundation should be considered to facilitate the installation and disassembly of the tower crane and avoid all kinds of large obstacles. 3. The inclination of the horizontal plane composed of four fixed parts of the foundation of the tower crane is not more than 1 / 1000.
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4. The foundation of the Tower Crane shall not have displacement and the foundation shall not have collapse. There should be drainage measures around the foundation and no water accumulation. The grounding pile should be driven according to the regulations. 5. The Tower Crane Foundation pouring should avoid the backfilled land as far as possible. If it has to be used, effective measures should be taken to make the bearing capacity of the foundation meet the requirements. 6. When the foundation of Tower Crane is poured on the foundation, the bottom of the foundation should be flat or slightly lower than the foundation pit. The soil quality and the ground endurance of the foundation should be known in advance. If there are underground river, quicksand and sludge around the foundation, effective measures should be taken to make the bearing capacity of the foundation meet the requirements. 7. If the foundation of the tower crane is poured on the side of the foundation pit, the foundation pit supporting system or the underground continuous wall of the foundation pit, effective measures should be taken to strengthen the surrounding support around the foundation and prevent the uneven settlement of the foundation To ensure that the foundation does not collapse, displacement and tilt phenomenon. 8. When the Tower Crane Foundation is poured on the Natural Foundation far away from the foundation pit, the foundation should meet the requirement of the regulation, and the foundation should be compacted after proper excavation.
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