ADM Monitor System in Pearl River Delta Water Resources Allocation Project Sponsored

"Pearl River Delta Water Resources Allocation Project” is the largest water resource project in Guangdong province in terms of pipeline length — 113.2 kilometers — and the geographical area receiving water. It is also the world's largest water resources project in terms of water pressure and tunnel shield length. To protect the environment, the pipelines will be installed 40 to 60 meters underground. The project is designed to divert water from the Xijiang River to the densely populated eastern part of the PRD, an area currently mainly supplied by the Dongjiang River.

The project includes a 90.3-km trunk line, two sub-trunk lines, one branch line, three pump stations, and a new regulating reservoir, along the 113-km underground pipeline route.

This project is expected to cost 33.9 billion RMB (US$5.4 billion) and take 60 months to be built.

To ensure safety during construction, monitoring of geological deformation is necessary. The shaft excavation is the first step of the project; during excavation, the horizontal deformation should me measured. Each shaft well has 4 boreholes for measurements.

The 4 boreholes are LGIN1-1, LGIN2-1, LGIN3-1 and LGIN4-1. At the current stage, ADMS-500 Array Displacement Meter is installed at LGIN1-1 and LGIN2-1.

Borehole: LGIN1-1

Device: ADMS-500

Depth: 68.5m

Collection Frequency: 1 time/1 hour

Borehole: LGIN3-1

Device: ADMS-500

Depth: 69m

Collection Frequency: 1time/1hour

The technical specifications of ADMS are tabulated below.

To utilize solar power with maximum efficiency, we use a D200 Data Collector, which when not measuring enters sleep mode to save power.

The technical specifications of D200 Data Logger are shown below.

Site Installation

Collected Data
Finally, example measuring data, (LGIN1-1) are provided below.

X, Y Profile Chart:

Displacement Chart:

ADM monitor system is GINTEC's newly developed product for geotechnical engineering monitoring. 

You can visit their website: www.gintec.cn or contact them by overseas@gintec.cn to know more.