Pile foundation detection method based on thermal pulse emission and optical fiber temperature measurement

• Main Authors: QIU CHENGCHUN, ZHANG DAN, LIU ZHENJIAN, ZHANG JINGHONG, WANG ZHAOYU, ZHAO XIANGYU, XU GUIZHONG, GU GUOQING, RUI CHAOFENG, FENG WEIJIAN
• Format: Patent
• Language: Chinese; English
• Published: 14.11.2023
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; SOIL SHIFTING; TESTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention discloses a pile foundation detection method based on thermal pulse emission and optical fiber temperature measurement, which relates to the field of pile foundation detection and comprises the following steps: drilling a plurality of heat source holes around an in-service pile foundation by using a static sounding device; embedding a plurality of first metal tubes containing resistance wires into the plurality of heat source holes respectively; drilling a plurality of optical fiber holes in the same side of the plurality of heat source holes by using a static sounding device; embedding a plurality of second metal tubes comprising U-shaped armored optical fibers and temperature measurement optical fibers into the plurality of optical fiber holes respectively, and connecting the second metal tubes with an armored optical fiber measurement system and a temperature measurement optical fiber measurement system in a communication manner respectively; operating the armored optical fiber measurement sy