Hangzhou Haikou Intercity Railway Underground Tunnel opened yesterday

On December 12, with the huge shield cutter slowly rotating and breaking through the earth, the last U-groove (excluding) shield tunneling project of Yuhang high speed railway station in yuxu section of Hangzhou Haikou intercity railway was completed. So far, nine underground tunnel sections of the whole line of Hangzhou Haikou intercity railway have been completed and "tunnel through" has been successfully realized.

on May 8, 2018, the first shield machine of Hangzhou Haicheng Railway "Hangzhou hai1" started from Xucun Town, which started the construction of the underground tunnel project of the whole line of Hangzhou Haicheng railway. Since then, 9 shield machines of the whole line of Hangzhou Haicheng railway started successively, lasting for nearly 580 days, and finally ushered in the completion of the whole line. The shield section between Yuhang high speed railway station and Xucun Town station where "hanghai No.1" of

is located is the underground construction section with the most difficulties to overcome and the most risk sources to cross safely. It has successively overcome the shield passing through the second channel of the planned Beijing Hangzhou canal, the special building group of long-standing shallow foundation, the gas section, the small net distance of the shield passing through the operation Metro Line 1 and the adjacent area There are many construction technical problems such as shield acceptance of full section water rich silty sand stratum of Tie1 line. It is the epitome of the whole line shield construction of Hangzhou Haicheng railway from breaking through in many difficulties to safe and smooth penetration.

on October 16 this year, the excavation and assembly of the 2061st ring of the No.2 shield machine for the right line of the shield section between Yuhang high speed railway station and Xucun Town station of Hangzhou Haicheng intercity railway were completed. So far, the double line shield of yuxu section has successfully passed through the existing tunnel of Hangzhou Metro Line 1, eliminating a major risk source for the construction of Hangzhou Haikou intercity railway.

it is reported that as the natural water content of the shield passing through the stratum from Yuhang high speed railway station to Xucun Town Station accounts for 24%, the large underground water pressure in the process of propulsion is very easy to cause the phenomena of water leakage, sand leakage and spiral machine gushing at the shield tail, which is one of the major risk sources of the whole line. For this reason, the construction company has set up the headquarters of Underpass Metro Line 1 through multiple channels to promote the safety construction and the linkage of relevant units. In the early November of

, with the "Hangzhou hai7" shield machine breaking the wall, the shield machine of the right line between the leather city station and Haichang Road Station of Hangzhou Haicheng intercity railway project smoothly went out of the tunnel. So far, the double line connection between the leather city station and Haichang Road station was successfully realized, marking the realization of "tunnel connection" in Haining section of Hangzhou Haikou intercity railway. This year, the Hangzhou Haikou intercity railway project has entered a period of comprehensive construction and construction climax. Civil engineering projects are in full swing, with electromechanical construction and track laying in full swing. "Dongtong" of the whole line is another important node of Hangzhou Haikou intercity railway after "Qiaotong" of the whole line on August 2, 2019. It marks that the construction of Hangzhou Haikou intercity railway has stepped into a new stage and opened a comprehensive construction period for the construction of connecting channels and tracks in the tunnel. As of November, the investment of Hangzhou Haining intercity railway project was 2.503 billion yuan in the same year, with a total investment of 9.255 billion yuan. Elevated and underground stations, vehicle bases (including control centers), track laying and mechanical and electrical projects are advancing in an orderly manner. A 6031 a 6031 in 2020, the investment target of Hangzhou Haikou intercity railway is 2.5 billion yuan. It is estimated that the overall image progress of the project will reach 90% or more. In the first half of the year, "rail connection" (all the track laying is completed), and in the second half of the year, "power connection" (all the catenary on the main line is energized). At the beginning, the conditions for joint commissioning and joint test are met.

the relevant person in charge of Hangzhou Haicheng Railway Co., Ltd. said that the builders of the whole line of Hangzhou Haicheng railway will gather strength with confidence, compose new articles with practical work, and march towards completion and opening to traffic in 2021 with solid steps. With practical construction achievements, they will make contributions to the development plan of "125" of provincial transportation group and the "five strategies" of Haining City, and build "Yangtze River Delta on the track" And the construction of rail transit infrastructure in our province has left the brilliant mark of Hangzhou and Hainese.