The subject of the procurement is geotechnical and bedrock studies in the metropolitan area. The procurement is divided into two parts. Part 1 includes geotechnical ground investigations and Part 2 includes bedrock studies.

Part 1, Geotechnical Studies.
Providers are being sought for geotechnical ground investigation services. Research methods include drilling, pressure probe, weight and wing drilling, installation of groundwater pipes, and both disturbed and undisturbed soil sampling and laboratory testing of samples. In addition, PIMA sampling and related analyses are required. The main focus of the studies is on drilling investigations, determining the elevation of the bedrock surface in areas covered by soil.

Part 2, Bedrock Studies.
Providers specializing in bedrock studies are being sought. The investigations include directed bedrock core drilling, water consumption measurements, as well as both optical and acoustic borehole imaging. Possibly also groundwater sampling from boreholes. Geological reporting is produced from the core samples of bedrock drilling, classifying for instance lithology, degree of weathering, and rock quality classifications per RG/Q classifications, and reporting all natural fractures and their characteristics. Borehole imaging reporting must include at least borehole images, interpreted fracture surface orientation, the openness and/or fill of fractures, and calculated fracture count per meter.

Additionally, bedrock studies include applied geophysical methods, such as seismic refraction surveys and ground penetrating radar (GPR) surveys. Bedrock studies may also include uniaxial and triaxial compression tests of rock samples, indirect tensile tests, rock shear strength tests, and other possible laboratory tests. Rock stress measurements may also be possible, and the provider must be prepared to measure using hydraulic fracturing and LVDT methods.

Providers may be required to store and dispose of rock sample boxes for the duration agreed for each specific assignment.

Partial bids are allowed; bidders can offer either Part 1 or 2 or both parts. Participation applications must indicate which part or parts will be offered. Each part will be evaluated separately. The contracting authority will select two (2) suppliers with the best comparative points in the competition for the framework agreement.

The duration of the framework agreement is 3 years, after which the contract can be extended (options) twice, first for two (2) years and then for one (1) year.

The estimated value of the procurement is approximately 1,200,000 euros (excluding VAT 0%) per year (about 500,000 euros for Part 1 and about 700,000 euros for Part 2). The estimated maximum value of services provided under the framework agreement over six (6) years is 7,200,000 euros (excluding VAT 0%).

The values of assignments based on the framework agreement made by the contracting authority vary between approximately 5,000 – 50,000 euros (excluding VAT 0%) per assignment for Part 1. Individual assignments may be larger. For Part 2, they vary between approximately 20,000 – 300,000 euros (excluding VAT 0%) per assignment. Individual assignments may be larger.

The procurement includes joint procurement. Subsidiaries of Helen Oy, such as Helen Sähköverkko Oy, have the right to make assignments under the terms of the upcoming framework agreement. The service assignments primarily relate to the needs of Helen Oy and its subsidiary, Helen Sähköverkko Oy. Other subsidiaries of Helen Oy will make assignments to a lesser extent.

LOT-0001
Part 1
Geotechnical Studies.
Providers are being sought for geotechnical ground investigation services. Research methods include drilling, pressure probe, weight and wing drilling, installation of groundwater pipes, and both disturbed and undisturbed soil sampling and laboratory testing of samples. In addition, PIMA sampling and related analyses are required. The main focus of the studies is on drilling investigations, determining the elevation of the bedrock surface in areas covered by soil.

LOT-0002
Part 2
Bedrock Studies.
Providers specializing in bedrock studies are being sought. The investigations include directed bedrock core drilling, water consumption measurements, as well as both optical and acoustic borehole imaging. Possibly also groundwater sampling from boreholes. Geological reporting is produced from the core samples of bedrock drilling, classifying for instance lithology, degree of weathering, and rock quality classifications per RG/Q classifications, and reporting all natural fractures and their characteristics. Borehole imaging reporting must include at least borehole images, interpreted fracture surface orientation, the openness and/or fill of fractures, and calculated fracture count per meter.

Additionally, bedrock studies include applied geophysical methods, such as seismic refraction surveys and ground penetrating radar (GPR) surveys. Bedrock studies may also include uniaxial and triaxial compression tests of rock samples, indirect tensile tests, rock shear strength tests, and other possible laboratory tests. Furthermore, rock stress measurements may be possible, and the provider must be prepared to measure using hydraulic fracturing and LVDT methods. Providers may be required to store and dispose of rock sample boxes for the duration agreed for each specific assignment.