Large open caisson foundation suspension type in-situ test counterforce system and construction method

• Main Authors: LUO WEIBIN, CHEN MEICUN, LIN FANGPENG, ZHU PEIMIN, WEI DAJIE, LUO YAN, CHEN JINRONG, TAN HAIHUI, ZHOU MING
• Format: Patent
• Language: Chinese; English
• Published: 06.01.2023
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention belongs to the technical field of large bridge open caisson construction, and relates to a large open caisson foundation suspension type in-situ test counterforce system and a construction method.The system comprises an open caisson foundation and a plurality of embedded pipes embedded in the bottom section of the open caisson foundation, and steel bars are arranged in the embedded pipes; the steel bar can extend out of the well wall of the open caisson foundation bottom section or one end outside the partition beam and is sleeved with the steel beam. A rigid bearing plate is arranged below the steel beam; a jack is arranged between the rigid bearing plate and the bottom of the steel beam; a plurality of displacement sensors are arranged on the rigid bearing plate; and the displacement sensor is connected with the static load tester and is used for recording data of in-situ test pressure and sinkage in real time. The operation space of test detection operators in the well cabin of the large open