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149464 2010 年 07 月 20 日 17:32 Reading (loading. ..) Comments (0) Category: Personal Diary
2003 In news, the dam can withstand years of a flood
2007 In news, the dam this year to prevent a flood
Millennium 2008 news, the dam can withstand floods once every hundred years
News in 2010, the Three Gorges flood storage capacity is limited, do not put all their faith in the hope that the Three Gorges Dam on the
2003 of news:
in the Three Gorges Project site, you can see, Dam construction in progress, effectiveness should be subject to quality, quality can veto everything. From 1 January 2001, all projects have been credited to the quality of contractor accident files, the quality of the occurrence of the accident but concealed and unreported, and will be canceled in the Three Gorges of the invitation to tender.
Three Gorges Project to establish a very perfect quality assurance system. Each construction unit has a self-test quality checks at each institution. Distribution of nearly a thousand quality supervision in the construction line, concrete placement and concealment of ruthless works site supervision. Three Gorges project as a legal entity, China Yangtze Three Gorges Project Development Corporation has hired foreign experts as a key part of the quality of the quality of director. Construction of the Three Gorges
to strengthen quality supervision checks from the State Council Three Gorges Project Construction Committee began in June 1999, sent to the Three Gorges project quality inspection team of experts, in-depth site from time to time for quality checks. Quality checks sent directly by the State Council Expert Group,
nike air force one low, which is unique key projects. So far, the quality check on the quality of the project expert group has carried out 9 inspections and research, to the State Council of the 4 annual quality inspection report. The high prestige in the Water sector of the
Water bottom hole surface. When he discovered that 14 flood diversion dam exists Bottom Honeycomb concrete pouring, bubbles and other quality issues, design and construction officer for severe criticism. According to Professor Zhang Guangdou and the group of experts,
air force 1 shoes, interested parties on the Three Gorges Project Corporation immediately organized the site quality problems were dealt with, and giving top priority to the quality of concrete placement of diversion bottom conducted a comprehensive inspection and repair.
pass rate 100%
works of Three Gorges project started in 1993 so far, has more than 130,000 units of the works of quality acceptance. The quality acceptance rate per year is 100%. For general engineering, this is good. However, in the Three Gorges, with a pass is not the standard, good rate is the assessment criteria, the dam can withstand the test of history is the quality of the goal.
pouring concrete on the dam, a series of national and industry standards for quality inspection. But the Three Gorges Dam construction in order to meet these standards are not met. China Yangtze River Three Gorges Project Development Corporation, with reference to national and industry standards on quality and technology to develop the Three Gorges Project These higher than the national standards and regulations and industry quality standards. To strict customs inspection, the Three Gorges Project has established measurement center, testing center, measure the center of the metal structure and safety monitoring center monitoring bodies, full use of modern high-tech means of all-round quality of the project monitoring. Test Center is equipped with the Three Gorges Project national or international advanced level of test equipment. Center staff to rely on advanced technology to develop a concrete aggregate,
air force one low, cement, additives and other aspects of 9 quality standards and testing, testing methods. High standards and strict requirements, so that the quality of the Three Gorges Dam construction continued on the stage. 1999 Three Gorges Project, the fine rate was 80.7% in 2000 to 81.5% in 2001 to 86.2% in 2002 increased to 91.9%.
Figure: Yesterday, several of the Yangtze River Three Gorges Water Conservancy Committee of experts in the Three Gorges Project dam the river discharged watching the situation. Day, the Yangtze River Three Gorges Water Conservancy Committee organized more than 20 research experts to visit the Three Gorges construction site, and watch beginning today under the Three Gorges Reservoir impoundment. (Xinhua)
Figure: Yesterday, several of the Yangtze River Three Gorges Water Conservancy Committee of experts in the Three Gorges Project dam the river discharged watching the situation. Day,
nike air force one high, the Yangtze River Three Gorges Water Conservancy Committee organized more than 20 research experts to visit the Three Gorges construction site, and watch beginning today under the Three Gorges Reservoir impoundment. (Xinhua)
promise not to stay hidden as a global super-project, the Three Gorges Dam is not only pouring a large quantity, but must continue uninterrupted high-strength construction. Far it has built 1.6 km left bank of the dam began in February 1999 is pouring. Peak in the pouring of 1999 and 2001, the Three Gorges project for 3 years more than 4 million cubic meters to maintain the high strength construction, the highest annual casting capacity of 5.48 million cubic meters, much higher than 巴西伊泰普 power pouring 3.2 million a year to create cubic meters world record.
, cracks in mass concrete, the dam is difficult to completely avoid the problem of placement. As the world's largest dam concrete pouring, in a continuous high-strength construction, the Three Gorges Dam is spared the cracks. Winter 2000, the Three Gorges Dam spillway dam section appears more than cracks. Although these cracks are surface or surface cracks, but still led all aspects of the Three Gorges Project Participation of high priority. Treatment for fractures, the State Council put forward quality control expert, should not stay hidden must adhere to the principles of the Three Gorges Project. Spillway dam section to deal with cracks, the project design unit --- the Yangtze River Water Resources Commission and the China Three Gorges Corporation, please go to the dam of 17 well-known experts in to elsewhere, and until the expert examination determined to have no risk.
is the principle that compliance does not stay hidden, all parties participating in the construction of Three Gorges Dam since the movements occurred in the dam, power plant dam and the upstream face of the crack ship lift a careful and detailed treatment.
acceptance in the water before the dam 135 meters above sea level below the fracture treatment has been completed. Safety assessment before the formal acceptance and technical pre-acceptance was given a unanimous conclusion: after they left no hidden cracks, the Three Gorges dam safety are protected.
about the left bank of the dam under the water gate is part of the Three Gorges Dam, after impoundment of the Three Gorges Project will also build about 600 meters of the right bank of the dam. To build the confidence the people of future generations, can stand the test of history of the dam, the Three Gorges Project is still extremely difficult.
2007 of news:
According to Xinhua News Agency, Yichang, May 7 - library this year, Proton flood the Three Gorges Project has been initiated, to 7, 8,
air force one shoes, the Three Gorges Dam water level upstream of the dam has dropped to 147.51 meters. China Yangtze River Three Gorges Project Development Corporation,
nike air force 1, said that the Three Gorges Dam to meet the millennium year, a flood flood flood standards.
Project Management
China Three Gorges Corporation, said director Feng Zhengpeng, if you encounter a case of 20-year flood, the dam water level upstream of the dam is 154.1 meters can be controlled; hundred years, the dam is 166.5 meters to control water level, Zhicheng Discharge Control in the 56,700 cubic meters / second, to ensure that the downstream water level not more than 44.5 meters Shashi; once in the millennium, the dam water level can be controlled within 175 meters, control Zhicheng Discharge at 80,000 cubic meters / second, to ensure that the downstream Shashi water level does not exceed 45 meters. Target this year, the Three Gorges Dam may play a major flood control benefits.
According to reports, last October 27, the Three Gorges Reservoir to 156 meters, which have the task of flood control capacity of middle and lower commitment. Not long ago, the water level of Three Gorges Reservoir began to flood down, the Proton will be more than 2.7 billion cubic meters capacity, is expected on June 10, the Three Gorges Dam water level will drop to 144 meters this year's flood control level.
2006 年 9 15, the Three Gorges Project water to meet the requirements of 156 meters, the Three Gorges ship lock began to heightening the first, second gate end of the first miter gate sill elevation and uplift of the second gate the first gate to the main content of the word the complete building construction. Through the joint efforts of all parties, complete the preliminary design of construction than ten and a half ahead of schedule, in this year's
2008 of news:
repair head in the Three Gorges is the flood. Flood is the most important, we reach the peak of the dam, the main flood control benefit to play in advance, reducing the Yangtze River floods could have brought flooding.
Three Gorges Dam across the board will be pouring 20 to 185 meters above sea level in the design elevation. June 6, after blasting the right bank of the upstream cofferdam, retaining the dam began.
Li Yongan said that under the State Flood Control and Drought Relief Headquarters approved the 2006 flood control program, the Three Gorges Reservoir's water level in flood season this year does not exceed 150 meters. This means that if you encounter the great flood of 1998, through the play of the Three Gorges reservoir regulation and storage features, you can ensure the safety of the Yangtze River flood season. Under special circumstances, approved by the State Flood Control Headquarters reported, you can also continue to rise the water level to control the Yangtze River water to reduce the pressure on the Yangtze River.
Three Gorges cofferdam since 2003, relying on water. Xunhou the reservoir water level this year rose to 156 meters from 135 meters to increase the storage capacity of 7.3 billion cubic meters. This is equivalent to the Yangtze River in the Jingjiang flood diversion area in the flood capacity.
finally, by the year 2010:
[Abstract] According to the news of the Yangtze River Water Resources Commission, the Yangtze River Three Gorges reservoir is expected to usher in more than 1954 and 1998, the highest peak value of the upper Yangtze River. Peak came in this year, the Three Gorges Dam can people expect to play the role of design? One person quoted CCTV commentator Cai Qihua, director of Changjiang Water Resources Commission as saying that this year can not put all the hopes are pinned to the Three Gorges Dam, because you want to complete the task, it gets to 175 meters in height ... ...