{"id":20709,"date":"2026-10-13T05:56:33","date_gmt":"2026-10-13T05:56:33","guid":{"rendered":"https:\/\/tunnelingworld.com\/?p=20709"},"modified":"2026-10-13T06:10:15","modified_gmt":"2026-10-13T06:10:15","slug":"creg-tbm-guozigou-xinjiang-tunnel-pipeline","status":"publish","type":"post","link":"https:\/\/tunnelingworld.com\/?p=20709","title":{"rendered":"CREG Double-Shield TBM Relaunches on 6.38km Xinjiang Tunnel"},"content":{"rendered":"
TBM Reused for Tunnel No. 4<\/strong><\/h5>\n

The Ping\u2019an TBM completed excavation of the 4.23km-long Tunnel No. 2 on 28 July before being prepared for reuse on Tunnel No. 4. The machine will now excavate a 6,377m section of the pipeline project.<\/p>\n

CRTG is carrying out the tunnelling works using two China Railway Engineering Equipment Group (CREG)<\/a> machines, Ping\u2019an and Green.<\/p>\n

The alignment presents challenging ground conditions, including developed fault zones, fractured and weak surrounding rock, and water-bearing strata. These conditions require careful control of excavation and support operations.<\/p>\n

CREG reported that construction across the project\u2019s four mountain tunnels has reached approximately 65%.<\/p>\n

Pipeline to Strengthen China\u2019s Gas Transmission Network<\/strong><\/h5>\n

The Guozigou Pipeline Project comprises approximately 32km of pipeline infrastructure, including four mountain tunnels with a combined length of 23.16km. It forms part of China\u2019s West\u2013East Gas Transmission Lines 2 and 3.<\/p>\n

The new infrastructure is designed to transport up to 60 billion cubic metres of natural gas annually. Once completed, it will provide an alternative route and improve the resilience of the existing gas transmission network.<\/p>\n

According to CREG, the two existing West\u2013East Gas Transmission lines have transported more than 557 billion cubic metres of natural gas since entering operation.<\/p>\n","protected":false},"excerpt":{"rendered":"

TBM Reused for Tunnel No. 4 The Ping\u2019an TBM completed excavation of the 4.23km-long Tunnel No. 2 on 28 July before being prepared for reuse on Tunnel No. 4. The machine will now excavate a 6,377m section of the pipeline project. CRTG is carrying out the tunnelling works using two China Railway Engineering Equipment Group (CREG) machines, Ping\u2019an and Green. The alignment presents challenging ground conditions, including developed fault zones, fractured and weak surrounding rock, and water-bearing strata. These conditions require careful control of excavation and support operations. CREG reported that construction across the project\u2019s four mountain tunnels has reached […]<\/p>\n","protected":false},"author":5,"featured_media":20711,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[43],"tags":[5593,5708,2633],"class_list":["post-20709","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-project-show-case","tag-china-railway-engineering-equipment-group-creg","tag-china-railway-tunnel-group-crtg","tag-double-shield-tbm","post--single"],"yoast_head":"\nCREG TBM Relaunches on 6.38km Guozigou Pipeline Tunnel<\/title>\n<meta name=\"description\" content=\"CREG\u2019s Ping\u2019an double-shield TBM begins a 6.38km drive on Xinjiang\u2019s Guozigou Pipeline Project after completing a 4.23km tunnel.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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