The Changsha Zhounan Xuefu Project is located in Kaifu District, Changsha C ity. It is a high-rise residential community. After th★e excavation of the foundation pit in the early sta‌ge, pile foundation construction began immediately. The geological structure of ™Changsha is mainly composed of gravel, siltstone, san×dstone, conglomerates and slate. The upper layer is reticulatedδ laterite.The same is true of the Zhounan Xuefu Project site. Under the foundation pit, after abou♥t four or five meters of laterite layer, there is a semi-weathered gravel andε slate structure cemented by laterite.

Based on the situation in all aspects, the project department sele₹cted Juxiang piling hammer for the construction of pile foundation guaαrd tube. The material for this construction is a steel guard tube with a lengt∏h 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 construction "is carried out in an orderly manner.Because the construction party's ar♠rangement of the process is very compact, after the hole dri lling rig leads the hole, the pile driver immediately pushes the guar​d cylinder into the ground, and after releasing the steel cage, the concrete tanker γimmediately steps forward to pour, which has high efficiency requirement✘s for the guard cylinder piling. Once the piling encounters obstacle®s and cannot be successfully constructed, the concrete tanker c&annot be poured in time, 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 stable and the strike♦ was powerful. Within the construction planning time, the construction operation of the guard t©ube was perfectly completed, which was well received by t₩he project department.