Study Tours

Pre-Symposium Study Tour

On 9th-10th, Nov., the participants will have the opportunity to visit Shibahe RFC Gravity Dam (under construction), Lvutang RFC Arch Dam(completed),and Xijiang CSGR Dam (under construction).

8th Nov.

Arrival in hotel (to be decided) of Guiyang, Guizhou Province, China

9th Nov.

Visit to Lvutang Rock-Filled Concrete Dam (RFC) in Zunyi City in the morning and Shibahe RFC Gravity Dam in Renhuai City in the afternoon is arranged.

RFC dam is a kind of cemented material dam, cementing rockfill with a high-performance self-compacting concrete to build gravity dams and arch dams. RFC technology combines the advantages of masonry and concrete, decreasing cement consumption, lowering the temperature rise of hydration heat and reducing the shrinkage of the concrete. Since the first RFC dam was constructed in 2005, RFC technology has been successfully applied in more than 80 dam projects (including dam rehabilitation) in China, with dam heights 30m-90m. According to practices, the cost of an RFC dam can be reduced by 10% to 30% compared with a concrete dam or an RCC dam. Lvutang dam is a RFC arch dam finished in Dec. 2019, with max. dam height of 53.5m and total RFC volume 52.3 thousand m3. Shibahe dam is a RFC gravity dam under construction with max. dam height of 57m and crest length of 228m. Total RFC volume is 170 thousand m3, 30% of which finished during past 7 months since Dec. 2018.

Lvutang RFC Arch Dam

Shibahe RFC Gravity Dam

10th Nov.

Visit Xijiang cemented sand, gravel, and rock Dam (CSGR) in Leishan in the morning and then arrive Kunming City by high speed train from Kaili station.

Based on the concept and practice of the hardfill dam and the trapezoid CSG dam, CSGR dam was proposed and developed since 2004. Local materials, including sand, gravel, excavated rock, etc. are mixed and cemented by roller compacting and vibrating to build a dam. The CSGR dam further broadens the scope of local material utilization, with the maximum particle diameter increased from 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 Qianhu Miao village, which is the largest Miao nationality community. The maximum dam height is 49.5m, the dam crest length is 198.5 m. The dam crest width is 6 m, the upstream slope ratio is 1:0.6, and the downstream average slope ratio is 1:0.6. Weathered rock will be excavated and crashed as aggregate. This project is planned to start construction in Sept. 2019 .

Xijiang CSGR Dam site

This tour will end in Kunming on 10th, Nov., 2019.

Post-Symposium Study Tours

On 13th -15th Nov., the participants will have the opportunity to visit

(1) Line 1

Kunming - Huangdeng RCC Gravity Dam - Kunming

13th Nov

Take high speed train from Kunming to Dali (about 2 hrs) in the morning. A short visit will be arranged to Dali ancient city and after lunch, you will take bus to Huangdeng RCC Gravity Dam (about 6 hrs)

14th Nov

Technical visit to Huangdeng RCC Gravity Dam.

Huangdeng RCC Gravity Dam, with the height of 203 m, which is the highest RCC dams completed in China, located in Lanping County, Yunnan Province, is the fifth stage hydropower station in the upper reaches of Lancang River in Yunnan Province. 2.5089 million m3 RCC and 0.47 million m3 CVC have been finished from March 2015 to March 2018, with average monthly placement 150,000 m3. Smart temperature control and digital construction control system has been used during the dam construction, which guarantee the quality. First impounding started in Nov. 2017 and the last unit was put into operation in Jan. 2019. The dam has been in good performance since its operation with leakage of 0.5L/s.

Huangdeng RCC Gravity Dam

15th Nov

Way back to Kunming by bus.

This tour ends in Kunming at about 22:00 on 15th, Nov., 2019. Participants are responsible for the cost and booking of their own travel and accommodations from this point onward.

(2) Line 2

Kunming - Wudongde Hydropower Project - Baihetan Hydropower Project – Kunming

13th Nov

Depart from Kunming to Wudongde Hydropower Project in the morning and visit the Wudongde Hydropower Project in the afternoon.

Wudongde HPP is the second largest hydropower project under construction in the world, and is the most upstream of the four giant hydropower stations in the lower reaches of the Jinsha River which are developed and constructed by China Three Gorges Corporation. It has a concrete double-curvature arch dam with a maximum height of 270 m. Dam construction started in March 2017 and will be finished in June 2020. The max. yearly placement is 951,000 m3 and monthly placement 100,000 m3. Wudongde dam site has high slop of 1500-1800m with slop ratio of about 50°-60°, which increases its difficulties of construction. Low-heat Portland cement and smart construction control system have been used to control thermal stress.

Wudongde Hydropower Project

14th Nov

Leave for the Baihetan Hydropower Project in the morning and Visit Baihetan Hydropower Project in the afternoon.

Baihetan is the largest hydropower project under construction over the world. It has a concrete double-curvature arch dam with maximum height of 289m. The dam controls the watershed area of 430.3 million km2, accounting for 91% of the watershed area above the Jinsha River. The total concrete volume of the dam is 8,030,000 m3. Dam construction started in April 2017 and will be finished in June 2021. Low-heat Portland cement and smart construction control system have been used to control thermal stress.

Baihetan Hydropower Project

15th Nov

Way back to the Kunming by bus.

This tour will end in Kunming at about 18:00 on 15th, Nov., 2019. Participants are responsible for the cost and booking of their own travel and accommodations from this point onward.

Important dates
30/09/2019
Deadline for receipt of full papers
15/08/2019
Deadline for the early bird registration
30/10/2019
Deadline for registration
Symposium Program

Chinese National Committee on Large Dams (CHINCOLD) and Spanish National Committee on Large Dams (SPANCOLD) have the honor to invite professionals to the 8th International Symposium on Roller Compacted Concrete (RCC) Dams, which will be held on Nov. 11th-12th, 2019 in Kunming City, China, together with the CHINCOLD 2019 Annual Meeting.

RCC dams have the virtues of saving a great deal of concrete, building quickly, making project cost down and early bringing into playing project advantages and so on. Hence, the technique of constructing dams has been quickly spread and applied since it came out. Today there are more than 400 RCC dams in more than 40 countries. Great successful experiences and advanced technologies have been achieved. CHINCOLD and SPANCOLD have devoted to promote the technology from early 1990’s. The first Symposium on RCC dams was jointly organized by the two committees in 1991 in Beijing China, which was a success start of the series of RCC Symposiums.

Following those successful and fruitful Symposiums held in Beijing (China) in 1991, Santander (Spain) in 1995, Chengdu (China) in 1999, Madrid (Spain) in 2003, Zaragoza (Spain) in 2012 and Chengdu (China) in 2015, the coming one jointly organized by CHINCOLD and SPANCOLD, will continue to contribute significantly to the knowledge and application of RCC technology with a wide range of contents and international scope. The Symposium will serve as a perfect venue for practitioners, engineers, researchers, scientists, managers and decision makers from all over the world to exchange ideas and technology about the latest developments dealing with RCC dams.

Beside international best practice, the participants will also have the occasion to visit some famous RCC dams in China in operation or under construction, such as Huangdeng RCC Gravity Dam (H=203m), Jin’anqiao RCC Gravity Dam (H=160m), Dachaoshan RCC Gravity Dam (H=115m), Dahuaqiao RCC Gravity Dam (H=107m) and etc. Also a technical exhibition for enterprises related to hydropower and dams will be held during the Symposium.

Friday- Sunday, 8-10 November

Pre-Symposium Study Tour

Sunday 10 November

Registration

Monday 11 November

Opening Ceremony, Awarding Ceremony, Plenary conference

Tuesday 12 November

RCC Symposium, Closing Ceremony

Wednesday- Friday, 13-15 November

Post-Symposium Study Tours