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09-01 2020
The first tunnel in the old city section of nanchang metro line 4 has achieved a two-way connection
At 16:00 on January 8, nanchang metro line 4, the first tunnel in the old city section of nanchang metro line 4 was completed in two directions. -
08-01 2020
Shanghai longyao road cross - river tunnel construction through the entire line
The new longyao road cross-river tunnel starts from the intersection of longyao road and longwu road in the west and ends at changqing road, chengshan road, with a total length of about 3,251 meters. The construction of the section was completed on April 5, 2010, providing an effective guarantee for the transportation of the expo. -
06-01 2020
The left tunnel between guangzhou south railway station and chencun north railway station in the west extension of guangzhou metro line 7 was successfully completed
Recently, "hongrun 22" shield tunneling machine broke through the shield well at chencun north railway station, marking the smooth completion of the left line tunnel between guangzhou south railway station and chencun north railway station in the west extension of guangzhou metro line 7. On December 19, 2019, "hongrun 23" had successfully completed the construction of the right-line tunnel. Since then, the tunnel between guangzhou south railway station and chencun north railway station in the west extension of line 7 has been connected by two lines. -
03-01 2020
"The first well on the Yellow River" completed the base construction smoothly
Today at 1 11 points, is located in jinan yet at the mouth of the south bank of the Yellow River tunnel project construction site, as the concrete pump truck ringing whistles, known as "the Yellow River first well" tunnel shield machine receive well bottom pouring completed, after China railway shisiju builder of 32 hours of continuous fighting, one-time continuous casting is completed more than 2200 cubic meters of concrete.
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02-01 2020
The left line of shield section between fenglehe road station and yulan avenue station on line 4 of hefei rail transit is connected
Recently, the construction of hefei rail transit line 4 has made new progress. On December 24, the left line of fenglehe road station and yulan avenue station was connected, which became the 36th single-line tunnel of line 4. On December 30, the double-line shield tunneling machine from science avenue station to qimen road station passed through hewu railway and hefu high-speed railway. -
25-12 2019
The single hole double layer chunfeng tunnel was drilled 128 meters
Chunfeng tunnel project has been tunneling 128 meters, shield machine is under construction on the riverside avenue. Chunfeng tunnel excavation diameter of 15.8 meters. The chunfeng tunnel starts from binhe avenue in the west to the east side of the overpass, docking with binhe avenue in the east to the south side of xinxing interchange and docking with henan road, with a total length of about 5.08 km, including a tunnel length of about 4.82 km. Two - way four - lane, using a single - hole double - layer form, shield tunnel length of 3,603 meters. Chunfeng tunnel is the first municipal highway tunnel constructed by shield method in shenzhen. The tunnel is constructed by mud-water balanced shield tunneling machine with the largest diameter in China. The total length of the shield tunneling machine is 135 meters, the excavation diameter is 15.8 meters and the total weight is more than 4,800 tons.
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