Tower crane tower crane is based on fundamental, proven, many major security incidents are due to problems caused by tower crane foundation, and it influences the overall stability of the crane is an important factor. Some of the accident was due to the site in order to grab duration, in the case of concrete strength is not enough to install and hasty, and some incidents are due to endurance is not enough, either because the basis of landslide near the excavation of which led to even generate displacement, or because of water and produced uneven settlement and so on, and so on, can cause a serious security incidents. Must arouse our serious attention, does not allow for ambiguity, the stability of the tower crane is a tower crane overturning resistance capacity of the largest tower crane collapse accident is tipping.

     When do tower crane foundation, make sure to meet the design requirements of endurance, strength of reinforced concrete design value of at least 80%. A basement of the tower crane foundation works have to take special measures to deal with: some basis to the piling, and pile tip reinforcement and foundation anchor bolts firmly welded together. Underside to reinforce the concrete foundation formation, foundation can not made as bottom of the pot-shaped bottom. Based foundation bolt size of the error must be in strict accordance with the requirements of the basis of map construction, anchor bolts enough above the ground to keep the length of each anchor bolt nut should be double-preload. Before the installation of basic surface treatment, ensuring that the underlying level of degree can not exceed 1 / 1000. At the same time not be water-based tower crane, water tower crane foundation will cause uneven settlement. Within the vicinity of the tower crane foundation shall not be arbitrarily digging or trenching.