The invention discloses a construction method of a
high pressure jet grouting hollow strengthening tubular
pile and the
high pressure jet grouting hollow strengthening tubular
pile. For solving the problems that an existing
steel tube submergence method leads to bad
adhesive effect between a hollow strengthening
pipe and a jet grouting body, and the entire rigidity of a tubular
pile is low, the construction method of the
high pressure jet grouting hollow strengthening tubular pile comprises the following steps: (1) forming a high pressure jet grouting tubular pile, (2), communicating the hollow strengthening
pipe and a high spraying grouting
pipe of a high spraying grouter; and (3), placing the hollow strengthening pipe into a high pressure jet grouting pile body before
cement slurry is initially set, and the bottom end of the hollow strengthening pipe is located below a
bed rock boundary. The high pressure jet grouting hollow strengthening tubular pile adopts the construction method of the high pressure jet grouting hollow strengthening tubular pile. The construction method of the high pressure jet grouting hollow strengthening tubular pile and the high pressure jet grouting hollow strengthening tubular pile adopt a vibroflotation method to effectively adhere both the
steel tube and the high pressure jet grouting body to an integration, extend the
steel tube into the
bed rock, and form a pile body structure with high stability.