Nanzhang Water Resource Regeneration Center Project (Phase I) is located in Rongxi Area of Xiong'an New District, Hebei Province, and is invested by China Xiongan Group Ecological Construction Company.本The project consists of box pit and fire pump room pit. The excavation depth of the box pit is 15.95～18.40m, north-south length is about 188m, east-west length is about 160m. The excavation depth of the fire pump room pit is 5.7～6.65m, north-south length is about 35m, east-west length is about 32m.
The excavation depth of this project is very deep, which is the deepest pit in Hebei Province so far, and the pit is surrounded by old buildings, and the nearest distance to the pit is less than 3 meters, which makes the on-site working space narrow, and the complex surrounding environment increases the difficulty and risk of pit construction, and is also the key point of the on-site safety monitoring of this project. According to the design requirements and the actual situation of the project, the monitoring items include horizontal displacement and vertical displacement monitoring at the top of the slope; horizontal displacement and vertical displacement monitoring at the top of the pile; vertical displacement monitoring at the surrounding surface; deep horizontal displacement monitoring; and groundwater level monitoring. The main content of this project is to use total station, levels, inclinometers for monitoring, using relevant software for data processing according to the data obtained, and at the same time carrying out safety inspections on site and submitting monitoring reports as required.
The pit monitoring service for Nanzhang Water Resource Regeneration Center Project (Phase I) started on December 29, 2021, and the field work was completed on November 2, 2022, which lasted for 308 days. In July 2023, the project successfully passed the owner's acceptance and completed the owner's data filing.
