The Changsha Zhounan Xuefu Project is located in Kaifu District, Changsha City. It is a high-rise™ residential community. After the excavation of the foundation pit in the earlβy stage, pile foundation construction began immediately. The geol↔ogical structure of Changsha is mainly composed of gravelα, siltstone, sandstone, conglomerates and slate. The upper layer i¥s reticulated laterite.The same is true of the Zhounan Xuefu Project site. Under tφhe foundation pit, after about four or five meters of laterite layer, there is a semi-weat£hered gravel and slate structure cemented by laterite.

Based on the situation in all aspects, the project department selected λJuxiang piling hammer for the construction of pile foundation guard tube. The material for ↕this construction is a steel guard tube with a length of 15 meters≠ and a diameter of 500 mm. At the construction site, the← hole guide machine, pile driver, and concrete tanker& perform their respective duties, and the constructio✘n is carried out in an orderly manner.Because the construction party's arrangement of theφ process is very compact, after the hole drilling rig leads the hole, the pile driver immediate¥ly pushes the guard cylinder into the ground, and aft<er releasing the steel cage, the concrete tanker imm↕ediately steps forward to pour, which has high efficiency requirements for the guard cyl©inder piling. Once the piling encounters obstacles and cannot be successfully ₹constructed, the concrete tanker cannot be poured in ti me, which can easily cause losses to the tank.

At the construction site, Juxiang piling hammer showed excellent working performance. ✘The strike time of each guard tube was controlled within 3.5 minutes. The work was s¶table and the strike was powerful. Within the construction planning time, the constrγuction operation of the guard tube was perfectly completed, which was well received by the projφect department.