Geovol Unterföhring GmbH maintains a district heating network in the municipality of Unterföhring. The

The heat supply is ensured by a supporting heating plant on the parcel plot 1189/0, municipal area

Unterföhring. The tender covers the works for the reinforcement of the outdoor facilities

of the backing heating plant including drainage facilities, as well as the creation of a WHG area. The following services must be performed:

• Approx. 900 m² asphalt paving including levelling work

• Approx. 400 m² mineral concrete surface

• Approx. 600 m edging (granite pail, shelves)

• Approx. 75 m² paved area

• Connection to drainage systems

• Cover topsoil

• Planting, trees, shrubs, hedges, ground covers

• drainage troughs

• gravel path for pedestrians and cyclists

The project is to be carried out in two construction phases:

Section 1: Creation of a WHG area

Section 2: Reinforcement of outdoor facilities

The construction area is paved with gravel at the time of execution. In the area of access and exit, a

Asphalt pavement in place that needs to be broken up. Care must be taken to ensure that the

existing avenue trees at the base pyramid and the rest of the vegetation will be preserved.

In the course of the measure, the construction of the outdoor facilities including drainage facilities, the

Construction of a WHG area and planting of various areas planned. The piping is

to be professionally laid and sanded in accordance with ZTV pipe trenches.

Fastening of surfaces:

In the course of the previous measure, the construction site was paved with gravel and various traffic and maintenance structures were carried out.

as well as two oil tanks. In the course of the measure, the fastening of a

Turning area to the east of the supporting heating plant with a green island planned. The entrance and exit is to the west

of the existing bus stop "Apianstraße" on the state road St2340. South of the

A 5 m wide asphalt pavement is produced at the construction plant. To the west and north there is a

Fastening with mineral concrete.

The following structure is planned (load class Bk1.0):

- 4 cm asphalt surface course AC 11 D S

- 14 cm Asphalttragschicht AV 32 T S

on an existing frost protection layer (some of which is still to be made).

In accordance with the guidelines of the ZTV E-StB 09, a

Modulus of deformation of Ev2 > 45 MN/m² required. To increase the load-bearing capacity, a

Soil replacement may be required.

The border of the fortification is provided with granite one-liner or granite two-liner. In the field of

existing back-anchored shotcrete wall, a shelf and a round grain filling

intended.

At the eastern entrances to the supporting heating plant, concrete paving areas will be created. Prior to the

Drainage channels are provided at the entrances, which allow the rainwater to be transported into the area by means of full drainage pipes.

Draining the substrate. To the north and west, it will be connected to the existing drainage channels.

In the area of the gas pressure regulating station, a paved surface including edging is created.

Rainwater disposal:

For rainwater disposal, a trench over a length of approx. 14 m is required in the area of the access road.

(width 2.50 m, height approx. 1.50 m, depth 2.0 m). It is a full drainage pipe DN 350 PE-HD

which will be connected to two shafts (DN 1000, depth 3.0 m). Closed

Covers provided. These trenches are connected to 4 road drains, a drainage channel and the

WHG area via a light liquid separator with drainage pipes DN 160 PP

affiliated. At the exit into the state road, a drainage channel with drainage via a

Settling shaft into the adjacent green trough. The drainage channels are used as a heavy load.

(SWL 60) and paved with a granite one-liner.

SWL60 drainage channels are installed in the area of the entrances. These drain with

Full drainage pipes DN 100 PP SN 16 into the existing soil.