Cferdam Jigede

CHEN Chi DING Xiangeng

(Sinohydro Bureau 10 Co.,LTD , Chengdu , Sichuan , 610072 ,China )

Site Emergency Treatment of Construction Machinery at CCS Project in Ecuador

SUN Qiyun ZHANG Sifu

(The Third Branch of Sinohydro Bureau 10 Co.,LTD , Dujiangyan, Sichuan , 611830 ,China )

Construction of Earth and Rockfill Dam with Clay Core at Nam Ngiep 2 Hydropower Station in Laos

DENG Bin YANG Jiong SU Tao

( Sinohydro Bureau 10 Co.,LTD , Dujiangyan, Sichuan , 611830 ,China )

Construction Technology for The Second Stage River Closure at Nam Ou 2

Hydropower Station in Laos

HUANG Zhijun

(Sinohydro Bureau 10 Co.,LTD , Chengdu , Sichuan , 610072 ,China)

RCC Construction Technology for Arch Dam at Nam Ngum 5 Hydropower Station in Laos

GOU Shiwen TAN Wankai XIE Li

(Sinohydro Bureau 10 Co.,LTD , Dujiangyan, Sichuan , 611830 ,China)

DesignandConstructionofTemporaryCofferdamatJatigedeDaminIndonesia

CHEN Chi DING Xiangeng

(Sinohydro Bureau 10 Co.,LTD , Chengdu , Sichuan , 610072 ,China )

Abstract: River closure is very important in construction of hydropower project in which dam is a main structure. Being temporary water retaining structures , design and construction of upper and lower temporary cofferdams are one of key projects before dam river closure. In this paper, design standards , construction process and main construction methods are described for upper and lower temporary cofferdams in Jatigede dam in Indonesia , providing experiences for the similar projects.

dam river closure ; temporary cofferdam ; design standards ; construction methods

Site Emergency Treatment of Construction Machinery at CCS Project in Ecuador

SUN Qiyun ZHANG Sifu

(The Third Branch of Sinohydro Bureau 10 Co.,LTD , Dujiangyan, Sichuan , 611830 ,China )

Abstract: Coca Codo Sinclair hydropower station is located on Coca River Basin between Chaco area and Lumbaqui Area in Napo and Sucumbios Provinces in Ecuador. The terrain conditions and traffic roads are complex in this areas and construction is hard. In order to ensure normal operation in site construction , when failure and accident occur in construction machinery , emergency measures should be taken in time and construction equipment must be recovered or moved away as quickly as possible and construction must be restored. In this paper, emergency rescue plan for construction equipment are made according to real conditions of project, providing references for site emergency treatment of construction machinery at hydropower station.

Keywords: CCS hydropower station; construction machinery ; emergency treatment

ConstructionofEarthandRockfillDamwithClayCoreatNamNgiep2HydropowerStationinLaos

DENG Bin YANG Jiong SU Tao

( Sinohydro Bureau 10 Co.,LTD , Dujiangyan, Sichuan , 611830 ,China )

Abstract: Construction technique for earth and rockfill dam with clay core at Nam Ngiep 2 hydropower station includes proper construction process , construction material control and reasonable allocation of construction resources. Therefore , construction quality are controlled .

Keywords: Nam Ngiep 2 hydropower station in Laos; earth and rockfill dam with clay core; construction technique; quality control

ConstructionTechnologyforTheSecondStageRiverClosureatNamOu2

HydropowerStationinLaos

HUANG Zhijun

(Sinohydro Bureau 10 Co.,LTD , Chengdu , Sichuan , 610072 ,China)

Abstract: In this paper, the second stage river closure project at Nam Ou 2 hydropower station are described in detail in respect of general layouts of river diversion and river closure, and hydraulic computations. Comparison between real river closure conditions and design are made. Some engineering experiences are summarized to provide references to the similar projects.

Keywords: river diversion ; river closure; construction organization design

RCCConstructionTechnologyforArchDamatNamNgum5HydropowerStationinLaos

GOUShiwenTANWankaiXIELi

(SinohydroBureau10Co.,LTD,Dujiangyan,Sichuan, 611830 ,China)

Abstract: RCC construction technology are applied in arch dam at Nam Ngum 5 hydropower station. Technical parameters, technical requirements and matters needing attentions are presented to give references to the similar projects.

Keywords: RCC; arch dam ; construction