Cover platform foundation
What is the cover platform foundation? In Cao Qihua’s words, it is composed of the inner and outer axis foundation beams as the skeleton, plus the outer axis wall containing a single layer of steel mesh. and top plate. Taking the construction site as an example, Cao Qihua explained to reporters that this house does not require piling. The surrounding outer axis skeleton only penetrates 1.3 meters into the roof foundation, while the inner axis only penetrates 0.5 meters into the roof foundation. After the skeleton is completed, a steel mesh is laid on the skeleton to make A reinforced concrete three-material roof is formed. This roof is not only the cover of the foundation, but also the floor of the entire house. This design connects the house into a whole, making the building both adaptable and independent as a whole, and has a soft landing function. , so it has the ability to withstand earthquakes. Experts from the Ministry of Construction concluded that the cover foundation has a novel and simple shape, is easy to construct, saves resources, and the supporting capacity of the covered soil is on an upward trend. Therefore, compared with raft foundations and pile foundations, it has the advantage of being both good and economical. Instead of piling, multi-story houses can be built using shroud foundations. Using this technology to build houses can not only save costs, but also withstand major earthquakes. This is the shroud foundation invented by Cao Qihua, a Shunde citizen. Relevant experts from Foshan University of Science and Technology came to visit the construction site, and Cao Gong explained his theory to the visitors.
The Tangshan earthquake inspired Cao Gong, who was over 70 years old, to "avoid piling". When the Tangshan earthquake occurred, he served as the chief of the production section of the No. 3 Construction Company of Hebei Province. He participated in the earthquake relief work and faced a He looked at the collapsed buildings and the tiled fields, and he was determined to build a roly-poly building. With a solid foundation in mathematics, Cao Gong discovered that there was a derivation error in the current bending distance formula of building mechanics
As a result, all types of building foundations did not ideally solve the connection problem between rigid buildings and flexible earth. Cao Gong imagined that Cover the soil in the form of a "compound bowl". The more soil is covered, the denser it becomes, and the greater its function of equalizing pressure and dispersing force. At the same time, it has a strong scattering ability connected to the center of the rigid object and a weak periphery, achieving The soft landing mechanism between rigid buildings and flexible earth is the germination of the theory of "pile-free" and "cover foundation". Building a House with Debt to Test Technical Achievements In 1985, Gong Cao returned to Shunde from the north with his wife. At that time, he had no financial conditions, so he borrowed money from relatives and friends to build a three-story house for his family to test the foundation of his invention. Under his leadership, two other people at that time also used his invention to build a three-story building each. In 1991, relevant experts from the Ministry of Construction made a special trip to the "Zhaokou AH' Pressure B" on the Golden Gate of Shunde. National experts believed that Cao's cover platform foundation was an innovative technology that could be established. In 1994, "Zhao Baiji Physics and Chemistry, Di Pay A four and don’t invent a patent. In the 1990s, a large number of single-family three- and four-story buildings were built in Shunde and its surrounding areas. Cao Gong poured his theory of covering platforms into the practice of folk architecture. During the day, he rushed around the buildings and climbed the stairs. Mentioning K, the six foundations are left and right. He put on his 400-degree reading glasses and read at his desk, working hard on the basic theory of the cover. Today, more than 200 residential buildings have been built in Chongde, Nanhai, Gaoming, Zhongshan and other places, and none of these buildings have any defects. There are even structural cracks that are said to be inevitable in the construction industry. Appear.