Construction Technology for Underground Excavation Interval of Entry and Exit Lanes in Parking Facilities
Based on the project of the entrance and exit line of the parking lot of the Middle Huanyuan Road in a city and by analyzing the engineering difficulties,the key technologies such as grouting reinforcement of the layer of miscellaneous soil,advanced large pipe roof,mining method of the underground excavation interval,secondary lining,foundation treatment.were adopted in the construction of the underground excavation section of the entrance and exit line of the parking lot.And the excavation of the miscellaneous fill section and the underpass of the shopping mall were successfully fulfilled.The engineering practice results show that this construction scheme is efficient,safe and controllable.
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