The world's largest earth pressure balance (EPB) double shield hybrid tunnel boring machine, or TBM, was officially rolled off the production line for the first time in Changsha, Hunan province, on Wednesday.

3月26日，全球最大直徑土壓平衡－雙護盾組合式隧道掘進機在湖南省長沙市正式下線,。

The TBM is called Qiangji, which means Strong Foundation. China Railway Construction Heavy Industry Corp and China Railway 18th Bureau Group Corp jointly developed the 12.68-meter-diameter tunneling behemoth, which will help construction of a 12.28-kilometer drainage tunnel in Hangzhou, Zhejiang province.

該掘進機取名“強基號”,，寓意“強力根基”。這臺開挖直徑達12.68米的巨型隧道掘進機,，由鐵建重工及中鐵十八局等單位聯(lián)合打造,，未來將助力浙江杭州一段12.28公里輸水隧洞的掘進建設(shè),。

Qiangji integrates EPB technology for soft-soil stability and double shield capabilities for hard-rock excavation. It is specifically engineered to conquer the tunnel's complex geological challenges.

據(jù)悉，“強基號”融合了用于軟巖地層穩(wěn)定的土壓平衡技術(shù)及用于硬巖挖掘的雙護盾功能,，專為攻克復(fù)雜地層掘進難題而設(shè)計,。

The breakthrough marks China's leading technological advancement in ultra-large-diameter tunnel boring equipment, injecting new momentum into urban flood control and underground space development.

“強基號”的下線，標志著中國在超大直徑隧道掘進設(shè)備領(lǐng)域的技術(shù)進步,，同時也為城市防洪和地下空間開發(fā)注入新鮮動力,。

Weighing 3,500 metric tons and stretching 107 meters long, the TBM also features cutting-edge digital integration. Its intelligent assisted tunneling system and automatic segment handling system allow operators to monitor over 20 real-time parameters – including cutter head rotation speed and propulsion rate – via a smart interface.

據(jù)介紹，“強基號”總重量達3500噸,，整機長達107米,，搭載了先進數(shù)字集成技術(shù)。其智能輔助掘進系統(tǒng)與自動管片拼裝系統(tǒng),，能輔助工作人員通過智能界面實時監(jiān)測掘進機刀盤轉(zhuǎn)速,、推進速度等二十多項參數(shù)。

Supported by an automated guidance system, the equipment achieves millimeter-level precision in tunneling. Additionally, digital twin technology enables visualized, full-process construction control.

同時,，“強基號”配備自動化導(dǎo)向系統(tǒng),，可實現(xiàn)掘進方向毫米級精度控制。此外,，配合工程數(shù)智孿生系統(tǒng),，還能實現(xiàn)全流程可視化施工。

The TBM will be deployed to China's largest deep-tunnel drainage system in terms of flood discharge capacity, tunnel diameter and burial depth. The project will alleviate flood risks in the Taihu Lake Basin, enhance flood resilience for western Hangzhou and establish an urban safety barrier for the city's main districts.

“強基號”將用于中國城市排澇規(guī)模,、洞徑和埋深最大的深層隧洞排水系統(tǒng)工程,。該工程將減輕太湖流域防洪壓力，增強杭州城西防洪排澇能力,，為杭州主城區(qū)構(gòu)筑起一道城市安全屏障,。