First we want to know is cast hollow floor is widely used in construction, such as in underground engineering it has been widely used. So hollow floor underground project uses are those advantages? So let us take a look at it specifically. Hollow floor products (EPS EPS phantom filled hollow floor slab outside the fire EPS hollow membrane body EPS mold box filled with polystyrene) RETAINING pile Quantities: significant reduction in number of deep excavation method, commonly used cantilever piles, anchors, internal support and so on. After using hollow flat lower pit dug deep hollow floor, earth pressure reducing grc hollow floor, pile length, buried deep shorten 13% eps hollow floor, narrow pile diameter, pile reinforcement lower, anchor the number and length of the rod, the number of cross-sectional size of the support member are also saved. Foundation slab: one meter pit dug deep to reduce water table also decreased one meter, water pressure is reduced P = 1 multiplication 10 = 10KN.M2; foundation slab and foundation beams load reduction 10KN.M2, reinforcement and sections and waterproof rating There are also reduced. In the case of high water table need to set the number of uplift piles and pile length has also been saved. With the development of the construction industry in recent years, in-situ concrete hollow floor construction technique was widely promoted into practice, in the shopping malls, parking lots, office, teaching, housing and other public residential and industrial buildings and other large buildings in the design and construction , we have made considerable progress. Situ concrete hollow floor technique is to place embedded in the floor slab core die in accordance with specific rules, within the cavity at the site pouring concrete floor slab form. This technique has the floor can effectively reduce weight, improve seismic performance of buildings, reduce project costs, shorten the duration of the hollow floor patent advantage, and help to improve clearance space utilization, and promote housing insulation, insulation, ventilation, daylighting effect. Therefore, favored by the majority of the developers and owners. grc hollow floor _ should be days of building materials (online consultation) _ Yima hollow floor should be days by the Yancheng Building Materials Limited. Yancheng should be days of Building Materials Co. (ycytjc.com) (www.ycytjc.com) Jiangsu Yancheng, a leader in building materials processing, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In the days of building materials should be leading the staff warmly welcome all inquiries negotiations to create the building materials should be days of a better future.