The Analysis And Treatment About Basement Garage Floor Anti-floating Inadequate

As the characteristics that shortage of land in city, high land prices, high volume of residential construction and residential density, the development of the ground or floor multi-storey parking garage is not the best option. Without increasing the building density in the ground, does not reduce the green area of the premise, development and utilization of underground space for parking garage construction has become a common trend. In recent years, the basement floating particularly area of the basement floating uneven, which caused huge economic losses and casualties to the state and people, therefore this paper does the following research about floating basement garage:First, this paper introduces the basic principles of anti-floating:the way to determine the anti-floating water table and to calculate the water buoyancy under different conditions apply to water table; Under the "anti" and "release" principle introduced balanced resistance and buoyancy to eliminate the two anti-floating-type design, The anti-floating anchor and anti-floating pile design was highlighted introduction.Second, the combination of the basement of a plot of Changsha floating phenomena, from the component size, concrete strength and cracking of the three aspects of the settlement were detected, with the design, construction, structural aspects such as cracking and subsidence analysis, through the Community overall anti-floating and local anti-floating checking, come to the basement floor is due to lack of resistance caused by floating.Finally, according to the geological conditions of the resident, set the anti-floating bolt reinforcement from the perspective of economic and capacity options. Anchors in the fight against floating mechanism analysis, carried out against the anti-floating anchor design. Through the load-displacement curve simulation of floating resist judging the reasonableness of the bearing capacity and deformation, through the introduction of PDCA to ensure t the anti-floating resist floating effect.