Wulijimuren River HDD Work for Changchun–Shijiazhuang Natural Gas Pipeline Project (Changling–Zhangjiakou Section)
OD1422 mm × 1,203 m large-diameter land-to-land HDD crossing.
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OD1422 mm × 1,203 m large-diameter land-to-land HDD crossing.
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OD630 mm × 830 m steel pipe landfall HDD crossing.
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OD1219 mm × 1,044 m HDD crossing through Malan Loess and Lishi Loess.
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OD219 mm × 1,800 m HDD crossing through slightly weathered limestone.
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Six HDD crossings: OD914 mm × 2 and OD457 mm × 4; combined length approximately 10 km. Completed by December 2019.
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DN1800mm reinforced concrete pipe casing installation by pipe jacking method.
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OD3800 mm water supply pipeline concrete casing pipejacking project
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DN3000mm Heating Pipeline Pipe Jacking Project
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DN4000mm Sewer Pipeline Pipejacking Project
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