Study on Measuring Method of Prefabricated Pile Length in Flood Area of Yangtze River
Prefabricated pile belongs to underground hidden engineering,and its length is one of the key indexes to ensure the bearing capacity,stability and seismic performance of prefabricated pile.Because of the long length of multi-section prefabricated pile,it is often difficult to excavate to verify whether the pile length meets the design requirements.Based on static load test and low strain test data,the length of multi-section precast pile is measured by magnetic logging method and in-hole camera method in this project in flood area of Yangtze River in Nanjing.The test results show that the combined magnetic logging method and in-hole camera method are reliable and effective in detecting the length of multi-section precast pile.
multi-section precast pilemagnetic logging methodin-hole camera methodpile length detection