Waterproof neon paper wristbandsconcrete extends life span of tunnel

The Secrets Behind Choosing Unqiue Secret Santa Gifts For Co-Workers
Taylor Swift is the 19 year old singer that isn"t best selling album Courageous. Teenage girls love the blond wavy haired beauty who recently won Album of year at The Academy of Country Music Awards. Out from the joy which we feel being together, we share gift among brothers and sisters. Acquire the brothers buy gifts for their sisters on Rakshabandhan as soon as the girls tie the pious thread round their brothers" wrists. Buying and sending gifts for sisters are in practice from the changing times immemorial nevertheless the trends of gifts and gifts ideas have changed considerably during the times. custmo gifts are such unique gifts for sisters which to create her feel special and happy. Many ideas will flow your current products have the photo printing done among the photos of your sisters. In this particular regard, the photos belonging to the brothers and sisters together can develop a very good photo present idea. Back mothers and fathers when full colour printing was very unlikely and Employed just starting in the promotion gifts business, I had a full colour logo. An amateur decision at that time but one I endured for quite a while. Finally I had the logo completely redesigned into a considerably simpler two colour logo: the logo I still use to this day. Born to Rock Blanket - if you want to within the baby becoming a little rock star then an Born to Rock Blanket is an appropriate gift. Task quite combined with bodysuit or bib a consequence of certainly a great baby shower gift. Promotional pens are a powerful way to thank a new customer for using your product or service. Include a pen with every new purchase and you will find the response wonderful for. Customers like to feel appreciated and a good pen shows your business cares about them. Selection of some amazing but cool gifts for men is a legitimate difficult profession. However, if it is gliding your decision is appropriate. Gliding is not really a leisure activity but also one belonging to the best gifts for folks. This air sport is popular among young fellows. Glider flies in the air without any engine control. There are different regarding gliding, as well as methods are accustomed to ensure that your glider around us. In those areas, which receive good sunlight, thermal method is necessary. In this method, warm air, heated by sunlight, act as the important element in keeping glider air born. In hilly areas, ridge life method may be and in one cases, artificial waves are intended to lift the glider. Candy. Some special Christmas candy is always a nice addition the girl"s Christmas stocking. Candy canes, white chocolate peppermint bark or some really good chocolate (maybe even a gold-boxed part Godiva) are good good tips. A Taylor Swift Christmas gift idea for a teenage girl can thought of pillow bed. This Taylor Swift for President pillow is by the same spirit as the team Swift or Team Taylor t-shirts. Taylor is an upbeat and mature getting. Who wouldn"t want Taylor Swift for us president?! The pillow is under $16.
The Hong Kong-Zhuhai-Macao Bridge has a designed life span of 120 years. [EDMOND TANG/CHINA DAILY]

The Hong Kong-Zhuhai-Macao Bridge, one of the most massive infrastructure projects ever undertaken, is being hailed as a remarkable achievement in cutting-edge civil engineering. International tunnel expert Tommy Olsen, from COWI, a leading infrastructure consulting company in Denmark, said its immersed tunnel sets a standard that may be copied in other projects around the world.

One concept that Olsen"s team brought to the Chinese project was watertight concrete, keeping the concrete tunnel safe from high hydraulic pressure without the need for waterproofing membranes.

Such membranes cannot be guaranteed to last as long as 120 years, the designed life span of the bridge, Olsen said, but good quality concrete can.

Olsen, who led a consulting team working with Chinese designers on the project, said the concept has been used for immersed tunnels in Europe and Korea, but the HZMB established new standards.

"This project is unique and what has been learned from this project could be applied to other long immersed tunnels worldwide in the coming years - like some of the concepts my team brought to this project," he said.

Before joining the HZMB team, Olsen"s company helped design the Busan-Geoje Fixed Link in South Korea and the Oresund Bridge linking Denmark and Sweden - two of the world"s leading bridge-tunnel projects.

After visiting the bridge site in February, after the principal sections were completed, Olsen told China Daily: "I am very impressed when I see the quality of the job. I am quite impressed by what I have seen today.

"When it is constructed in this way and with high quality, there is much greater likelihood that the tunnel will not leak water for the next 120 years, which is a very long time span for a project."

The intended 120-year life span of the bridge embraced talents supplied by the governments of Hong Kong, Macao and Guangdong province. The achievement is considered a high watermark of positive exchanges in civil engineering among the three jurisdictions.

Lau Ching-kwong, a bridge expert in Hong Kong, credits this cooperation with ensuring the high quality of the bridge.

Lau, a fellow of the Hong Kong Academy of Engineering Sciences, led the construction in the 1990s of the Tsing Ma Bridge in Hong Kong, the world"s longest suspension bridge accommodating both rail and road traffic.

He was also a member of the expert group advising on key technologies for the HZMB.

The designed life span of a bridge on the Chinese mainland is normally 100 years, Lau said, but in Hong Kong it is 120 years. That was the standard set for the HZMB, which meant better materials were demanded.

The same principle was applied to the standards for earthquake resistance, wind shear and every other index that defines a solid engineering structure, Lau said.

It was a challenge for engineers in the three places, but Lau said, "You can see that it worked out great."