Bored bite pile refers to the reinforced concrete "pile wall" formed by the bite of adjacent piles in the plane layout, which is used as the supporting structure of deep foundation pit of buildings. Bored bite pile was discovered by Professor Wang Zhenxin, a famous underground engineering expert in China, when he visited abroad, and was introduced into China and recommended to Shenzhen Metro Project. At present, after a lot of engineering practice, bored bite pile has become a very mature supporting structure construction technology in China, and it has been widely popularized in deep foundation pit engineering of urban structures such as subway, threading under roads and high-rise buildings. Especially in the unfavorable conditions such as silt, quicksand and groundwater enrichment.