SECOND BULLETIN China
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INVITATION Chinese National Committee on Large Dams 1999, Madrid (Spain) in 2003, Zaragoza (Spain) in (CHINCOLD) and Spanish National Committee on 2012 and Chengdu (China) in 2015, the coming one Large Dams (SPANCOLD) have the honor to invite jointly organized by CHINCOLD and SPANCOLD, professionals to the 8th International Symposium on will continue to contribute significantly to the Roller Compacted Concrete (RCC) Dams, which knowledge and application of RCC technology with will be held in 11th -12th Nov. 2019 in Kunming City, a wide range of contents and international scope. SECOND BULLETIN China. The Symposium will serve as a perfect venue for RCC dams have the virtues of saving a great practitioners, engineers, researchers, scientists, deal of concrete, building quickly, making project managers and decision makers from all over the cost down and early bringing into playing project world to exchange ideas and technology about the advantages and so on. Hence, the technique of latest developments dealing with RCC dams. constructing dams has been quickly spread and Beside international best practice, the applied since it came out. Today there are more than participants will have the occasion to visit 400 RCC dams in more than 40 countries. Great Wudongde Hydropower Project (H=270m, under successful experiences and advanced technologies construction), Baihetan Hydropower Project have been achieved. CHINCOLD and SPANCOLD (H=289m, under construction), Huangdeng RCC have devoted to promote the technology from early Gravity Dam (H=203m, completed), Shibahe 1990’s. The first Symposium on RCC dams was RFC Gravity Dam (under construction), Lvutang jointly organized by the two committees in 1991 RFC Arch Dam (completed),and Xijiang CSGR in Beijing China, which was a success start of the Dam(under construction). A technical exhibition for series of RCC Symposiums. enterprises related to hydropower and dams will be Following those successful and fruitful held during the Symposium. Symposiums held in Beijing (China) in 1991, Santander (Spain) in 1995, Chengdu (China) in VENUE Kunming is the capital of Yunnan province Kunming’s array of tourist attractions, the city in Southwest China, is one of the most important serves as a great jumping-off point for Dali, economic, transportation, and communication Lijiang, and Tiger Leaping Gorge to the north centers in South-western China. as well as Jinghong, Xishuangbanna, Pu’er and Kunming is the ideal venue for leisure Yuanyang to the south. traveler, which is reputed as “Spring City” as it’s Hotel information: warm climate, wonderful environment, developed Hotel: Empark Grand Hotel of Kunming economics, convenient traffic condition, as well as Address: 1# Yingbin Road, Kunming, the food and culture. Yunnan, China Major tourist sites in Kunming include Transportation from airport to the Hotel: two Tang Dynasty Pagodas, Yuantong Temple, 1) By Taxi: 40 minutes (cost 70-90 CNY) Yunnan Provincial Museum, Kunming City 2) By Bus: Kunming Airport Express Line Museum, and Green Lake Park. Aside from 4, 50 mins (cost 25 CNY, depart every 30 mins) Dachaoshan RCC Gravity Dam (H=115m) Jin’anqiao RCC Gravity Dam (H=160m) TOPICS CALL FOR FULL PAPERS 1. Materials and mixture proportions English papers are now invited on the 2. Planning and design related topics. Please submit your papers in 3. Construction and quality control the website of 8th International Symposium on 4. Performance and monitoring RCC Dams. You are also welcomed to email 5. RCC dams on non-rock foundation papers to the correspondence address of the 6. Rehabilitation of RCC dams and SECOND BULLETIN symposium. A short CV of each author and upgrading of old dams with RCC contact details including cell phone number, 7. Design, Construction and Performance of Cemented Material Dams (CMD) fax number and e-mail address should be 8.Technological innovations and new trends included. 9.Other uses of RCC and cemented materials in dam construction and hydraulic IMPORTANT DATES structures ★ August 15th, 2019, Deadline for the receipt LANGUAGE of full papers and early bird registration ★ September 30th, 2019, Deadline for Official languages of the Symposium are registration English and Chinese. Simultaneous translation will be provided for plenary sessions of symposium. INTERNATIONAL MILESTONE RCC PROJECT To recognize major achievements experiences of them can be used completion. of dam technology and define as a valuable reference for the ( 3 ) Attention during the milestone projects in this field, with the future developments. construction and operation stages support of international experts, There are a great number to environmental protection and CHINCOLD and SPANCOLD of RCC dams constructed in the social aspects. initiated the International Milestone world. A number of them were ( 4 ) Attention paid to Project Award on RCC Dams. This recognized as International raising awareness of technical proposal gained the support of Milestone RCC Projects at the past achievements and advanced ICOLD and the positive responses Symposiums on RCC dams. The experience. from many ICOLD National main basic eligibility criteria for an The Organizing Committee Committees. International Milestone RCC Dam of the 8th Symposium on RCC The milestone projects Project must include: Dams would like to invite experts are representative of the main (1) Technical innovation in and countries to recommend achievements in dam projects design, construction, operation or some projects as Candidate of until now, and they are also the other aspects. International Milestone RCC Dam basis for the new projects. The ( 2 ) Good performance after Projects. Nov. 11 Nov. th -12 TECHNICAL EXHIBITION th , 2019 Kunming, China , 2019 Kunming, During the Conference, a technical exhibition related to the hydropower and dams will be organized. Organizations and companies are welcomed to display their supplies and services to delegations from all over the world. If you are interested in the exhibition, please kindly contact the secretariat for further details. PRE-SYMPOSIUM STUDY TOUT On 9th-10th, Nov., the participants will have the advantages of masonry and concrete, the opportunity to visit Shibahe RFC Gravity decreasing cement consumption, lowering Dam (under construction), Lvutang RFC Arch the temperature rise of hydration heat and Dam (completed), and Xijiang CSGR Dam reducing the shrinkage of the concrete. Since (under construction). the first RFC dam was constructed in 2005, RFC technology has been successfully applied 8th Nov. in more than 80 dam projects (including dam Arrival in hotel (to be decided) of Guiyang, rehabilitation) in China, with dam heights Guizhou Province, China 30m-90m. According to practices, the cost of an RFC dam can be reduced by 10% to 30% 9th Nov. compared with a concrete dam or an RCC dam. Visit to Lvutang Rock-Filled Concrete Lvutang dam is a RFC arch dam finished in Dam (RFC) in Zunyi City in the morning and Dec. 2019, with max. dam height of 53.5m and Shibahe RFC Gravity Dam in Renhuai City in total RFC volume 52.3 thousand m3. Shibahe the afternoon is arranged. dam is a RFC gravity dam under construction with max. dam height of 57m and crest length RFC dam is a kind of cemented material of 228m. Total RFC volume is 170 thousand dam, cementing rockfill with a high-performance m3, 30% of which finished during past 7 months self-compacting concrete to build gravity dams since Dec. 2018. and arch dams. RFC technology combines Lvutang RFC Arch Dam Shibahe RFC Gravity Dam Xijiang CSGR Dam 80 mm to 150 mm and soft rock can also be used as aggregate. Special construction and detection equipment and digital monitoring system have been developed to control quality. Xijiang CSGR Dam is 1.5 km away from Xijiang 10th Nov. Qianhu Miao village, which is the largest Miao Visit Xijiang cemented sand, gravel, and nationality community. The maximum dam rock Dam (CSGR) in Leishan in the morning height is 49.5m, the dam crest length is 198.5 and then arrive Kunming City by high speed m. The dam crest width is 6 m, the upstream train from Kaili station. slope ratio is 1:0.6, and the downstream Based on the concept and practice of average slope ratio is 1:0.6. Weathered rock the hardfill dam and the trapezoid CSG dam, will be excavated and crashed as aggregate. CSGR dam was proposed and developed This project is planned to start construction in since 2004. Local materials, including sand, Sept. 2019 . gravel, excavated rock, etc. are mixed and This tour will end in Kunming on 10th, cemented by roller compacting and vibrating to Nov., 2019. build a dam. The CSGR dam further broadens the scope of local material utilization, with the maximum particle diameter increased from POST-SYMPOSIUM STUDY TOURS On 13th -15th Nov., the participants will have Huangdeng RCC Gravity Dam, with the the opportunity to visit height of 203 m,which is the highest RCC dam finished in China, located in Lanping County, (1)Line 1 Yunnan Province, is the fifth stage hydropower Kunming - Huangdeng RCC Gravity Dam - station in the upper reaches of Lancang River in Yunnan Province. 2.5089 million m3 Kunming RCC and 0.47 million m3 CVC have been finished from March 2015 to March 2018, with 13th Nov average monthly placement 150,000 m3. Smart Take high speed train from Kunming to Dali temperature control and digital construction (about 2 hrs) in the morning. A short visit will be control system has been used during the dam arranged to Dali ancient city and after lunch, you construction, which guarantee the quality. First will take bus to Huangdeng RCC Gravity Dam impounding started in Nov. 2017 and the last (about 6 hrs) unit was put into operation in Jan. 2019. The dam has been in good performance since its 14th Nov operation with leakage of 0.5L/s. Technical visit to Huangdeng RCC Gravity A workshop on key technologies of Dam.