The story appears on

Page A8

July 20, 2009

GET this page in PDF

Free for subscribers

View shopping cart

Related News

Home » Metro

Innovative tunnel links both sites

ENGINEERS working on the Xizang Road S. Tunnel, one of Shanghai's newest cross-river vehicle routes and the only one connecting both 2010 World Expo zones along the Huangpu River, say it will be an innovative combination of art and technology.

The 2.67-kilometer long tunnel, with a 1.17-kilometer span beneath the Huangpu River, will become crucial for Expo traffic as the designated tunnel linking both Expo sites.

Ten days ago, the tunnel was partially put into use with the opening of one of its two tubes.

The project's chief engineer, Yang Junlong, said the requirement to service Expo has been incorporated from the start into the tunnel's design.

"It will be the only tunnel across the Huangpu River to connect with ramps beside the main roadways," Yang explained.

The tunnel meets on the western side of the river at the crossing of Xizang Road S. and Zhongshan Road S. 1 and also stretches to the intersection of Gaoke Road W. and Yunlian Road in Pudong New Area. Different from other tunnels, it also has three ramps, one exit ramp near the Puxi end and two others at its Pudong end.

Anticipating a much larger traffic demand from inside the main Expo zone in Pudong, the designer has opened two ramps on the tunnel's Pudong end that facilitate traffic both arriving and departing.

The ramps are expected to effectively divert traffic using the tunnel during Expo, according to the project designer.

An estimated 60,000 to 70,000 visitors per hour will be crossing the river between the Expo sites. Most of them will be in vehicles with the rest transported by ferries and Metro, according to Expo organizers.

The engineers have not only tried to maximize the tunnel's traffic efficiency but also addressed its aesthetics in their design.

Yang said a special decor material, called Artech plate, has been used to cover the main structure inside the tunnel.

The white plate is refined and looks magnificent and pleasant to the eye, Yang said.

Vertical greenery strips are also laid along some parts of the tunnel, not only for decorative purpose but also to help absorb noise and vehicle exhaust, according to the project designers.

Compared with the delicate interior decorative tasks, early-stage digging of the tunnel tubes was risky and challenging. One of tubes was dug only 2.68 meters below the tunnel of Metro Line 8 near the eastern bank of the Huangpu River, said the engineers.

When the digging machine was operating close to the Line 8 tunnel, engineers said that to complete this "extreme" pass-by, around-the-clock monitoring was necessary to make sure the Metro tunnel's underground movement was controlled to within 20 millimeters to ensure the structure's safety.

The eastern tube of the Xizang Road S. Tunnel has been in special service since last weekend by buses on eight cross-river routes that have been detoured because of renovation construction on another vehicle tunnel.

Thousands of daily bus passengers have therefore been able to take a privileged tour inside a dedicated Expo tunnel that will not open to full traffic until next year.

During Expo, only authorized vehicles and Expo passenger buses will be permitted to use the tunnel. Its western tube will be completed before end of this year. Tunnels in service

Dalian Road Tunnel

Outer Ring Road Tunnel

Xiangyin Road Tunnel Yan'an Road E. Tunnel

Fuxing Road E. Tunnel

Dapu Road Tunnel (single-tube tunnel, currently closed for renovation)

Under construction

To open before Expo

Xinjian Road Tunnel

Renmin Road Tunnel

Xizang Road S. Tunnel

Dapu Road Tunnel's New Tube (an expansion of the old tunnel in service)

Shangzhong Road Tunnel

Jungong Road Tunnel

To open after Expo

Longyao Road Tunnel

Changjiang Road W. Tunnel

Under current planning, 14 tunnels altogether will eventually exist under the Huangpu River to connect Pudong and Puxi.

Q: In which World Expo was the television first displayed?

A:The television has gone through several stages of upgrade since its invention. But it debuted in its first stage only 70 years ago at Expo 1939 New York as a new technology product.Expo 1939 celebrated the 150th anniversary of the inauguration of the first United States' President, George Washington, with the theme "Building the World of Tomorrow."Despite the brutal Great Depression and economic downturn after World War I, Expo 1939 managed to attract 45 million visitors from 64 countries or regions.Making their debut with the television, were tape recorders and nylon and plastic products which caught people's attention and boosted their hopes for a new life: with the old days gone, the world of tomorrow would surely be better.

Q:What was the first Chinese product to win an award at the World Expo?

A:Yung Kee Silk.

This was a self-established brand of Xu Rongcun (1822-1873), one of the first businessmen who swarmed into Shanghai to seek opportunities after the city opened its ports to external trade. In 1851, Xu participated in the first World Expo in London with his "Yung Kee Silk," which made a splash among visitors and won both the gold and silver medals presented by the reigning monarch Queen Victoria. Xu's achievements were recorded in "Bei Ling Xu's Genealogy" (published in 1884) and clearly verified by "The Report of the Appraisal Commission" (published in 1852). These written records are kept in Shanghai Library, proving that China took part in the World Expo as early as 1851.


Copyright © 1999- Shanghai Daily. All rights reserved.Preferably viewed with Internet Explorer 8 or newer browsers.

沪公网安备 31010602000204号

Email this to your friend