Recently, as the shield machine's cutterhead slowly broke through the soil, the left-line shield of the Yunlong Station–Xiaoyangjiang Station section of the TJ7017 civil engineering lot of Ningbo Rail Transit Line 7, constructed by the company, successfully broke out of the tunnel, marking that the **shield-driven section tunnels of this lot have achieved dual-line breakthrough.

The scope of the Ningbo Metro Line 7 TJ7017 lot project includes three shield-driven sections: Yunlong Station–Xiaoyangjiang Station–Dongqianhu North Station, and Yunlong Station–Xiaying Vehicle Depot entry/exit line; one cut-and-cover section for the entry/exit line; and one post-station working shaft. The left line of the Yunlong Station–Xiaoyangjiang Station section that broke through this time is about 887 meters long. It starts from the north end of Yunlong Station, runs northeast along the planned Suolan Road, and connects to Xiaoyangjiang Station. The longitudinal profile of the section tunnel is a "V"-shaped slope with a maximum gradient of 28‰. The tunnel depth of the section ranges from 11.9 to 28.1 meters, and one cross passage and one built-in pump room are provided. The tunnel depth at the shield receiving end of the section reaches 26.8 meters.

To ensure the smooth reception of this shield machine, the project management personnel fully verified the reinforcement effect at the receiving end, carefully checked the reception task list and emergency materials list, and earnestly organized and held the reception condition acceptance meeting, ensuring that the reception work would be foolproof.