综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Society

Forbidden City walls getting major repairs

By Wang Kaihao | China Daily | Updated: 2016-11-28 07:36

Forbidden City walls getting major repairs

Workers take measurements on Saturday as they prepare for restoration of the walls of the Palace Museum in Beijing. JIANG DONG/CHINA DAILY

After centuries, walls that once protected mighty emperors are beginning to show their age. The walls of the ancient imperial center of power that is now the Palace Museum in Beijing have weaknesses like loose bricks and bulging, cracking surfaces.

On Saturday, the museum, also known as the Forbidden City, began a restoration project to keep the walls from collapsing.

"People usually think the walls are much more solid than our wooden palace architecture," said Shan Jixiang, director of the museum. "However, the result of our detailed investigation has told us they are not."

Experts recently finished a survey on the condition of the 3,437 meters of wall. It shows hidden hazards: Some sections have been hollowed out over time, and are sagging. Grass and tree roots that have infiltrated gaps pose another major threat to their stability.

The western walls have sustained the most damage, Shan said. A 233-meter section on that side has been chosen as the first target for renovation. Plans for the rest are pending.

The original work on the Forbidden City dates to 1420. Its walls are around 9.3 meters high and 8.55 meters thick. They have an earthen core, protected by outer bricks.

Historical records show there were several major restorations in the 17th and 18th centuries, following heavy rainstorms or earthquakes. In 1988, a section of the north wall collapsed.

In 1999 and 2000, the museum undertook a preventive maintenance project, but it mainly focused on the surfaces. Shan said restorers are looking in depth this time. New, high-tech tools like ground-penetrating radar are being used.

"We want to thoroughly cure the 'illnesses'," he said.

Zhao Peng, a museum engineer who is leading the restoration project, said his team will stick to traditional Chinese construction methods, but he also acknowledged expected difficulties.

"In some cases, it would be easier to use new bricks than reusing materials in the wall to fix the problems," he said. "But the principle of minimum intervention in the restoration of cultural relics demands that we reuse as many original bricks as possible.

"It's thus a challenge to devise a plan to combine and match old and new materials," Zhao said. Any new materials used must conform to the look of the existing brick, he explained.

Shan said he expected the whole project covering all endangered sections to be completed by October 2020, when the Forbidden City celebrates its 600th birthday.

 

Editor's picks
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
玛多县| 柞水县| 台南市| 长白| 南木林县| 邯郸市| 丘北县| 平山县| 五家渠市| 怀柔区| 梅州市| 大城县| 景洪市| 新闻| 阿城市| 招远市| 玛多县| 蒲城县| 张家界市| 雷山县| 神池县| 祁门县| 呼和浩特市| 乐陵市| 若羌县| 天柱县| 宁陕县| 色达县| 无极县| 洪雅县| 阿拉尔市| 西平县| 依兰县| 平罗县| 西乡县| 苏尼特左旗| 香格里拉县| 天镇县| 梧州市| 嘉黎县| 仁布县|