Beijing Vibrating Engineering Machinery | Lebanon National Higher Institute of Music Project
[Overview] The Lebanon National Conservatory of Music project is subcontracted by Beijing Zhendong Engineering Machinery Co., Ltd. The planned site is located near the Mediterranean Sea, only 100 meters from the nearest point.
The Lebanon National Conservatory of Music project is subcontracted by Beijing Zhendong Engineering Machinery Co., Ltd. The planned site is located near the Mediterranean Sea, only 100 meters from the nearest point. About 30% of the planned site is at the same level as the surrounding roads. This part is backfill from the construction of surrounding projects, with mixed soil quality and uneven properties. Groundwater in the area is mainly due to direct lateral seawater erosion, with rainwater infiltration from above and groundwater from the Lebanon Mountains to the east converging and discharging into the Mediterranean Sea. The groundwater level is directly affected by the Mediterranean Sea water level, with a corresponding elevation of 0.20～1.30m. The overall trend of groundwater level changes is directly affected by rainfall during the rainy season and the tides of the Mediterranean Sea to the east, with a fluctuation of about 1.5m.
The foundation soil in the planned area mainly consists of fill soil ①, lower medium-coarse sand ②, fine sand ③, silty clay ④, fine sand ⑤, and limestone ⑥ layers.
To eliminate soil liquefaction and enhance parameters such as bearing capacity, the vibro-compaction method is used; the engineering properties of the foundation soil vary greatly in the vertical direction, and the groundwater in the site has moderate corrosiveness to concrete structures and weak corrosiveness to steel bars in reinforced concrete structures, and strong corrosiveness to steel bars in reinforced concrete structures under alternating dry-wet conditions. Therefore, vibro-compaction and long spiral bored piles are used jointly.
Due to the epidemic, and to ensure the normal progress of the project, with the strong support of company leaders and the efforts of management personnel in coordination, personnel entered the site on October 6, 2020, to prepare for the construction. The project's difficulties include a high groundwater level and the rainy season in Lebanon, which increased the difficulty of construction. In addition, the severe epidemic situation and unstable local situation in Lebanon brought many inconveniences to the construction. Our team overcame numerous difficulties through reasonable work deployment, and in cooperation with local Lebanese staff, actively cooperated with the client to complete the construction tasks with high quality and quantity, earning the client's high recognition!
The aid project for the Lebanon National Higher Conservatory of Music was successfully completed on June 15, 2021, and some personnel are still on duty to handle the completion work. In this project, more than 42,000 meters of vibro-compaction for site liquefaction treatment were completed, and more than 26,000 cubic meters of concrete were poured for long spiral bored piles.
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