2022年2月19日，历时3个月的孟加拉吉大港卡纳普里河底隧道S2段振冲碎石桩施工顺利完工。
On 19th, Feb 2022, Vibroflotation stone column construction for Kamaphuli river tunnel S2 stage in Bangladesh Chittagong port has been completed after 3 months constructing period.
卡纳普里河底隧道位于孟加拉国的吉大港的卡纳普里河入海口，本项目处于入海口冲积三角洲区域，地层基本上为第四系冲积覆盖层，属于易地震地带。
The Tunnel under the Kanapuri River is located at the mouth of the Kanapuri River in Chittagong, Bangladesh. The project is located in the alluvial delta area of the estuary. The stratum is basically quaternary alluvial overburden, which belongs to the earthquake-prone zone.
采用振冲法处理完的地基，振动会使土壤颗粒重新排列，快速消散超空隙水压力，碎石桩形成排水通道，大大提高地基的抗液化能力。施工期间，恰巧出现的6.2级的地震更加突显了振冲法处理地基的抗液化性能。
The soil particles can be rearranged by vibration, the excess void water pressure can be dissipated quickly, and the gravel pile can form a drainage channel, which greatly improves the anti-liquefaction ability of the foundation. The anti-liquefaction performance of vibroflotation treated foundation was further highlighted by the occurrence of a magnitude 6.2 earthquake during construction.
工程为我司与中交二航局协作，为其提供振冲设备及专业振冲施工团队。
In this project, our company cooperated with CCCC No.2 Aviation Bureau to provide vibroflotation equipment and professional vibroflotation construction team.
设备采用我司生产的130kW振冲器，总工程量13483延米，施工桩径1m，桩间距2m，施工桩深为21.4-23.5m。
In this project, our company cooperated with CCCC No.2 Aviation Bureau to provide vibroflotation equipment and professional vibroflotation construction team.
