The shield machine put on a "jacket" for the first time!Another shield range of Taiyuan Metro Line 1

On June 29, with the roar of the bursts, the "Fenjin No. 1" shield machine slowly entered the "jacket" prepared in advance -preset steel sleeve, marking the Dananmen Station of Taiyuan Metro Line 1 ——The Taoyuan Road Station Shield Division to the right line.

The project is built by the 14th Bureau of China Railway and is located in the direction of Da South Gate to Taoyuan Road along Yingze Street. The unidirectional shield range is about 1 kilometer. There are many risks around the interval, and hydroponics are complicated. The shield machine side wears important buildings such as the comprehensive office building of the police preparation area, the Chinese People's Insurance Company Shanxi Branch, and the office building of the China Railway Third Bureau. stand.

Different from the previous shields, the reporter came out of the shield machine and saw that a large iron barrel was "quietly" lying under the shield machine to receive wells.

Zhang Huan, the person in charge of the Shield of the 14th Bureau of China Railway, introduced that due to the softness of the shield end point, poor stability, prone to surface settlement, and even the internal tube of the shield interval. It is equivalent to wearing a "jacket" to the shield machine.

Steel sleeve is a cylindrical storm with a slightly larger diameter than the shield machine, the length of the shield body is slightly longer than the shield machine, one end, and the other end is closed. Form an overall closed container. When the shield machine "shows" from the ground, an accident can be avoided and the safety factor is added. In addition, during the shield construction process, the construction personnel will use the method of reserving the cement slurry into the pipe to inject the cement slurry to strengthen the strata.

It is understood that after the right line of the interval runs through, the laid operation of the track and contact network will be carried out. At the same time, the left line of Dananmen Station -Taoyuan Road Station Shield range will also start.

Source: Shanxi Evening News

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