Commissioned by Chengdu China Railway Huichuan Urban Rail Transit Co., Ltd, our company undertook the third-party monitoring project of Chengdu Rail Transit Line 9 Phase I Project, Section C This project is located in Qingyang District, Chengdu City, and contains Jitouqiao station (original Jitou station), Peifeng station (original Wuqing North Road Station), Chengdu West Station (original West Passenger Station) and Huangtianba station (original Chengfei Avenue Station), three sections, Wuqing Deport and the entrance/exit line. In this section, the station base is in the dense pebble soil layer, and the construction methods are open cut, cut and cover method, half cover excavation and so on.
Safety monitoring，safety inspection and safety risk management related to the third party monitoring of underground, ground buildings (structures), important pipelines, ground and roads, existing lines, connecting channels, U-shaped grooves of access and exit lines, etc. within the scope of influence of this project (determined according to the buried depth of the structure and not less than 30m outside the outer edge of the structure) according to the design and specification requirements.
The main content of the project is to use total station, level, inclinometer, water level gauge, frequency reader, layered settlement meter, convergence meter to monitor. Based on the data obtained, we use relevant software to analyze the data, and at the same time carry out safety inspections of the site and submit third-party monitoring reports as required. The project started in May 2017 and was completed in April 2021. According to the construction progress and construction working conditions, site monitoring was carried out on time, timely feedback of monitoring information was provided, and timely and accurate monitoring data was provided so that all parties could effectively use the monitoring information to achieve the purpose of guiding the construction and ensuring the safety of the project.
In April 2021, the project had been successfully accepted by Chengdu China Railway Huichuan Urban Rail Transit Co., Ltd and completed the archiving of the owner's data.
