Research and Application of Quality Monitoring and Control System for

RCC Dam in the Souapiti Hydro-Power Project

Heng Li11/ 11/ 2019

⚫ Project Overview

⚫ Key Technologies and system implementation

⚫ Conclusion

Table of Contents

“数字工程”整体解决方案领跑者 推动基建行业的数字化进程，为建设‘节约型’社会贡献力量 01

Part 1: Project Overview

“数字工程”整体解决方案领跑者 推动基建行业的数字化进程，为建设‘节约型’社会贡献力量 02

Souapiti Hydro-power Project Country: Guinea Western Africa

Location: Middle reaches Konkoure River

Owner: China International Water & Electric Corp

Installed capacity: 450 MW

Annual power generation: 1.899 billion KWH.

Dam FeaturesHeight: 120m

Length: 1164m

Type: RCC DAM

Concrete Volume: 3600Km3

Part 1: Project Overview

“数字工程”整体解决方案领跑者 推动基建行业的数字化进程，为建设‘节约型’社会贡献力量 03

Concrete Spreading-Rolling-Compacting Process used for Inclined Layer Method Layer Thickness: 30CM Rolling times: 6+2

Part 1: Project Overview

“数字工程”整体解决方案领跑者 推动基建行业的数字化进程，为建设‘节约型’社会贡献力量 04

Parameters used for Process Quality Control & Instrumentation layout

Rolling compaction

Track analysisTime(s)

Elevation

Roller SpeedLayer Thickness

Vibration Frequency

Part 2: Key technologies and system implementation

“数字工程”整体解决方案领跑者 推动基建行业的数字化进程，为建设‘节约型’社会贡献力量 05

Overall data transfer & communication network used on site

Part 2: Key technologies and system implementation

“数字工程”整体解决方案领跑者 推动基建行业的数字化进程，为建设‘节约型’社会贡献力量 06

Overall IT architecture for Rolling and Compacting Quality Control System

Roller compaction database

System standard interface

(WebAPI)

Driver’s terminal (industrial pad)

Roller compaction service terminal

(Windows service)

Roller compaction mobile terminal

Other system software

(data query)

PC monitoring and control terminal

Paver’s terminal

(industrial pad)

Standby Supervisor terminal

(industrial pad)

Part 2: Key technologies and system implementation

“数字工程”整体解决方案领跑者 推动基建行业的数字化进程，为建设‘节约型’社会贡献力量 07

Features Specially Designed for Inclined Layer Construction Method

Compacted thickness Calculation

data

collection Layer No. N Positioning data

(X, Y, Z)Angle α

Network point

(X1, Y1)

Current

elevation Z

Database

<X’,Y’,Z’,N’

>

Elevation regard to grid point

Or (N-1) nearby

point Z1

Layer No. N-1,

elevation Z1

Real-time calculation of layer thickness (Z-

antenna height/cosα-Z1)*cosα

Real-time layer thickness calculation displayed on terminals

Layer Thickness Calcuation

Part 2: Key technologies and system implementation

“数字工程”整体解决方案领跑者 推动基建行业的数字化进程，为建设‘节约型’社会贡献力量 08

Features Specially Designed for Inclined Layer Construction Method

Automatic 3D model

&2D section Depiction for each

Concrete Layers

Part 2: Key technologies and system implementation

“数字工程”整体解决方案领跑者 推动基建行业的数字化进程，为建设‘节约型’社会贡献力量 09

Efforts for system internationalization

• Time zone configuration transformation• Coordinate transformation• Multi-language transformation• System use adjustment to suit project management characters

Part 2: Key technologies and system implementation

“数字工程”整体解决方案领跑者 推动基建行业的数字化进程，为建设‘节约型’社会贡献力量 10

The system has recorded 24 platforms and 728 roller compacted layers.

By the end of August 2019, dam concrete placement has reached about 3.44 million cubic meters, including about 2.484 million cubic meters of RCC. 89,162 test points have been checked for compaction conditions, the pass rate is 100%.

Part 3: Conclusion

“数字工程”整体解决方案领跑者 推动基建行业的数字化进程，为建设‘节约型’社会贡献力量 11

• As the development of the new technologies, “Digitization, Informatization, intelligent construction” has gradually changed way we used to build and to management on site .

• “Rolling & compacting” process monitoring system has became a new quality control tools wildly applied in earth-fill /rock-fill/RCC dams.

• This type of real-time IT process management tool certainly improved the quality control capacity for construction management teams.

• Not only Engineering Practice but also related IT services can shine in “the Belt and Road” market.

Thank you for Your Attention!