Technological principle Using the rotary device of the JAR full casing full rotary drill, the friction resistance between the steel casing and the soil layer is greatly reduced, and the rotary side is pressed in, while the impact grab bucket and the impact hammer are used to dig the soil until the...

At present, the construction of deep foundation pits in the flood-flat area of the Yangtze River has some problems, such as large ground settlement, large force and deformation after construction, which seriously affects the overall quality of construction projects. In order to promote the...

On April 21, the 49th Geneva International Exhibition of Inventions closed in Geneva, Switzerland. This year's invention exhibition attracted more than 1,000 invention projects from nearly 40 countries and regions. The Chinese delegation brought 197 inventions to the exhibition and won a total of...

On December 9, 2023, China Construction Machinery Industry Association (hereinafter referred to as: Association) organized a meeting in Xuzhou, Jiangsu Province by Xuzhou Jingan Heavy Industry Machinery Manufacturing Co., LTD. (hereinafter referred to as: The "TRD7095 Chain knife type wall forming...