System and method for monitoring earth pressure and displacement of miniature steel pipe pile body

An earth pressure and displacement monitoring system of a steel pipe pile body, comprising:

• resistance-type earth pressure gauges,
• sensor metal protective shells,
• a resistance test strain gauge,
• a data storage device,
• reflective sheets,
• supporting plates, and
• reflective sheet base rebar ends;
• wherein
• sensor installation holes are arranged on the steel pipe pile body;
• the sensor metal protective shells are arranged at positions where the resistance-type earth pressure gauges being installed, resistance-type earth pressure gauges are connected to the resistance test strain gauge through a transmission line, and the resistance test strain gauge is connected to the data storage device;
• a top beam is installed on a top of the steel pipe pile body, and waist beams are evenly distributed on an outer surface of the steel pipe pile body;
• a protruding end of each reflective sheet base rebar end is provided with a supporting plate, and each reflective sheet is installed on the supporting plate.