Foam concrete jacking pipe suitable for obstacle avoidance and turning

• Main Authors: TIAN GUOWEN, YANG JINCHAO, WANG RUIJUE, LIU JIAN, ZHAO YUJUN, SUN WENMING
• Format: Patent
• Language: Chinese; English
• Published: 28.04.2023
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The foam concrete jacking pipe comprises a plurality of pipe joints which are connected in sequence, one end of each pipe joint is defined as a front end, the other end of each pipe joint is defined as a rear end, a steel bellmouth is arranged at an opening of the front end, an insertion opening is arranged at an opening of the rear end, and when adjacent pipe joints are connected, the steel bellmouth is embedded into the insertion opening; a wood cushion layer is further arranged on the end face of the joint of every two adjacent pipe joints; the interior of each pipe joint is hollow, the pipe joint wall of each pipe joint is a foam concrete layer, and a reinforced concrete layer and a macromolecule resin anti-drag anti-corrosion coating are sequentially arranged on the outer portion of each foam concrete layer from inside to outside in the radial direction of the pipe joint. According to the utility model, the purposes of avoiding obstacles and changing directions in the jacking process can be achieved, the