Construction and installation activities of Techexpo: completed projects

Contract price: 49 173 883 RUR

From October to November 2015, the construction service of Techexpo, together with its partner Midas LLC, repaired asphalt concrete pavements at the following sites in St. Petersburg:

• Transport tunnel of the Bolsheokhtinsky bridge
• Eastern and Western overpass at the intersection of the road to the airport with Pulkovskoe Highway
• Silin bridge over the Karpovka river
• Novo-Moskovsky bridge
• Kantemirovsky bridge

Work included the dismantling of the roadway pavement, work on the upper layer of the roadway pavement from the hot asphalt mix ShMA-15 and road marking - a continuous line of longitudinal road markings with thermoplastic with the addition of micro balloons.

Sidewalks were also repaired at the overpass at the intersection of the road to the airport with Pulkovskoe Highway. In this case, membrane waterproofing with a leveling layer was used. The top and bottom layers of asphalt pavement are 4 cm thick each.

The polymer pavement of the draw span of the Kantemirovsky bridge was manually dismantled, the metal structures of the orthotropic slab were repaired, and a polymer coating for the bridges (Matacryl) was applied with the addition of a quartz mix.

The warranty period is established for:

• Road coating of the roadway and sidewalks including those made with the use of polymeric and/or modifying additives including curb stones, sets of wells, chambers, covers, pedestrian and road barriers - 48 months;
• Water disposal elements – 60 months;
• Road markings – thermoplastic 12 months;

Contract price: 1 542 852 RUR

Before starting repair activities, we developed and represented a Work Execution Plan to the client, which included flowcharts, process regulations, and other substantiating documents for performing work at the corresponding facilities. The project met the requirements of current technical standards.

Old pavement at the facilities was dismantled and cleaned to remove loose particles of asphalt within the approved calendar plan.

The laying of the new asphalt concrete pavement was carried out in compliance with the requirements of SNiP 3.06.03-85. "Roads" (approved by the Decree of the USSR State Construction Committee dated 20.08.1985 N 133), "GOST 9128-2009. Asphalt concrete mixes for road, airfield and asphalt concrete. Specifications" (approved by the Order of Federal agency for technical regulation and metrology dated 04.22.2010 N 62-st), "TR 103-07. Technical recommendations for the installation of road structures using asphalt concrete" (approved by the Department of Scientific and Technical Policy in the Construction Industry).

After the completion of construction work, thermoplastic markings were applied. The marking restoration scheme was developed and agreed upon with the Department of the State Road Safety Inspectorate and St. Petersburg "Directorate for the organization of traffic in St. Petersburg."

In total, on the site of Sadovaya st. in Pushkin 517 m2 of pavement was repaired, and 489 m2 on the Tverskoy bridge in Kolpino (along Tverskaya street). The objects were accepted and put into operation right on time. This is the result of the joint work of the Techexpo construction service and Midas LLC.

The work performed was accepted under the KS-3 form - the main document, which is mandatorily issued during construction and installation works.

In total, 517 m2 of pavings were repaired on the Sadovaya st. in Pushnik city, and 489 m2 on the Tverskoy bridge in Kolpino city (on Tverskaya street). The facilities were accepted and put in commission just in time. This is the result of the joint work of Techexpo construction service and Midas LLC.

The work performed was accepted according to the KS-3 form – the main document, which is necessarily drawn up for construction and installation activities.

The warranty period is established for:

• Road coating of the roadway and sidewalks including those made with the use of polymeric and/or modifying additives including curb stones, sets of wells, chambers, covers, pedestrian barriers and road barriers - 48 months;
• Road markings – thermoplastic 12 months;

Contract price: 17 758 527 RUR

The length of the repair site on Titov st. in Saint Petersburg, 880 meters.

Repair of the roadway in confined spaces in parts of the city considering work on one part of the roadway when there is traffic on the other.

For this time, a traffic management chart was presented and coordinated with all concerned parties including the Department of the State Road Safety Inspectorate and St. Petersburg "Directorate for the organization of traffic in St. Petersburg." For the period of repair, the safe passage of pedestrians and vehicles was ensured.

A layer of asphalt covering was removed by the method of cold milling. When laying the top layer of asphalt covering, altitude adjustment of well hatches and covers was carried out. Hatches of light type on pedestrian alleys and main hatches (heavy) on the roadway. New elements of the speed breaker were assembled.

New curb stones were installed along the roadway, and curb ramps at pedestrian crossings are now entirely located within the area intended for pedestrians and do not protrude into the roadway.

To restore road markings, a chart for restoring road markings was developed and agreed upon with the State Traffic Safety Inspectorate and the State Institution "Directorate for the Organization of Traffic". Road markings were applied with thermoplastic after pavement repair. Landscaping was restored by sowing the lawn and partially using the previously cut vegetation layer.

All activities were performed jointly with Midas LLC.

The guaranteed use period is determined for

• Road coating of the roadway and sidewalks including those made with the use of polymeric and/or modifying additives, including curb stones, sets of wells, cameras, covers, pedestrian barriers and guardrails – 48 months;
• Parts for water disposal – 60 months;
• Lawn – 12 months;
• Covering roadside – 12 months;
• Road marking – with thermoplastic 12 months;

Contract price: 38 822 804 RUR

Works for painting supports of high-voltage overhead lines (overhead lines 110-220 kV) in the amount of 200 pcs. in the Leningrad region was performed as part of preparations for the World Football Championship.

The required work was performed following the technology of painting metal, concrete, and reinforced concrete structures. Before painting the surface of metal supports was cleaned of rust, dedusted and defatted. After that, a special primer was applied.   

Work was performed manually without disconnecting overhead lines. The painting was done manually in two layers with a special device with weather-resistant corrosion-inhibiting paint Armokot s70. It is specially designed for the protection of metal, concrete and reinforced concrete structures under the conditions of a permanently highly corrosive environment. When exposed to highly aggressive environments, it creates a protective barrier between the structure and the coating. Thanks to this, the structure is not exposed to a corrosion environment.

Works were performed just on time before November 30, 2017, under the contract.

The warranty period for the work result – 5 years subject to the correct operation

Contract price: 27 433 491 RUR

In 2016 - 2017 the Techexpo construction department jointly with its partner Midas LLC completed a major overhaul of the roadway with the installation of stop pavilions in the Pushkinsky district of St. Petersburg.

Work was carried out at several sites:

1. Bus stop – 36 Sapernaya st.
2. Bus stop - opposite house 36, building 7 on the Sapernaya st.
3. Bus stop - Park-hotel "Potemkin" (from Pushkin)
4. Bus stop - Park-hotel "Potemkin" (to Pushkin)
5. Bus stop - Kadetsky Boulevard, corner of st. Parkovaya
6. Bus stop - st. Udalovskaya, corner of st. Novoderevenskaya
7. Bus stop - village Tyarlevo, st. Bolshaya (to A.S. "Pavlovsk")
8. Bus stop - village Tyarlevo, st. Bolshaya (from A.S. "Pavlovsk")
9. Bus stop - 10 Pushkinskaya st.

The major overhaul of the roadbed on the roadway and sidewalks was complicated by the presence of sewage, communications and light systems in these places. Old street light poles were dismantled and new ones were installed, well hatches were replaced with the installation of new adjust rings; new surface runoff inlets were installed to drain surface water on the roadway.

Cable lines were protected to 35kV: 1 cable line 6 kV and 1 cable line 0,4 kV of CEK CJCS, which were in the area of road works.

At each site, "pocket" seats for public transport were organized, pedestrian barriers were installed and stop pavilions were mounted, new road signs were installed. To mark the lane of the roadway and places of pedestrian crossings, thermoplastic markings with reflective materials were applied to improve visibility at night. According to the developed overhaul project, the requirements of SP 59.13330.2012 "Buildings accessibility for the disabled people and other groups with limited mobility " were taken into account. In places of road crossings, the height of the curb stone does not exceed 0.04 m, which ensures unhindered and convenient movement on the sidewalks.

Warranty period is established for:

• Paving - 5 years;
• Utility systems - 10 years;
• Landscaping elements - 2 years;

Contract price: 350 000 RUR

In November – December 2019, Techexpo company examined the construction structures of a transformer substation for MTS PJSC in Saint Petersburg.

The examination goal is to measure the strength of the foundation of premises for a heavy-weight transformer unit.

To solve this task, we carried out technical analysis of not only the foundation and subsoil but also bearing engineering structures.

Building foundation material – reinforced concrete, walls and partitions – brick, the ceiling above the premises of the transformer substation is made of prefabricated reinforced concrete slabs of the PNS type. The building has 2 floors in total.

First of all, we carried out a visual inspection of the building to perform measurement work, clarify the location of bearing structures, a preliminary assessment of the technical condition of building structures and detect visible defects with their photographic fixation. These activities were carried out in compliance with the requirements of SP 13-102-2003 “Regulations for examination of bearing engineering structures of buildings and structures”.

Then we carried out an instrumental examination to determine the actual loads and impact on the building. In addition, we measured the thickness of the concrete layer with a special tool. Verification analyses of the force plate of the foundation under transformers.

Based on the findings of the technical inspection, a report was drawn up including:

• Data on instrumentation for conducting the examination
• List of examined structures
• Results of the visual inspection of the structures
• Results of the measurement activities
• Results of the determination of actual loads and impact
• Results of opening and examination using tools
• Results of confirmatory analyses

Note to the technical report includes a list of building defects and damage, photo materials, results of strength control of reinforced concrete structures, copies of self-regulating company certificates, certificate of instrument calibration, graphic materials.

Construction activities were carried out in 2019 and included the overhaul of not only the indoor premises of stores but also the building facade. In total, there were 5 construction facilities:

• St. Petersburg, Kolpino, 7 Proletarskaya st.
• St. Petersburg, 61 Sadovaya st.
• St. Petersburg, 5 Politruk Pasechnik st., building 1
• St. Petersburg, 3 Utochkina st.
• Leningrad region, Lomonosovsky district, village Yalgelevo, 38a Yalgelevo st.,

New internal walls and partitions were built in the sales areas, concrete screed with porcelain stoneware and tiles was used for the floors, and linoleum was used in some premises. According to the project, new stained-glass windows and metal-plastic windows were installed in the stores. The facade was renovated and painted. Entrance swing doors, sliding doors were installed. Evacuation and service exits, unloading platform devices were organized.

Before the start of the overhaul, construction and dismantling works were carried out. The old cladding of walls and ceilings, roofs and floors was removed. The floors and communications were completely dismantled. The facade of the building was dismantled.

At each facility, a full range of installation works for utility systems, including commissioning, was carried out. This is the installation of a water supply and sewerage system, a heating system, including an individual heating point - a boiler room, and a heat supply metering unit, as well as a fire and security alarm system, ventilation, power supply and electric lighting systems.

The overhaul of the Magnit stores involved not only the renovation of the premises but also the installation of all internal equipment of the store. After the completion of all construction work, our specialists assembled and installed furniture, shelving in the trading area, assembled cash counters and cash registers, laid a low-voltage network to equipment in the checkout area, assembled and installed showcases with cabinets and glass, installed cabinets for customers' belongings, promotional podium, stock cabinet.

Signboards were mounted on the facade of the stores, trash bins and bicycle racks were installed near the stores. Anti-vandal and decorative grilles for air conditioners were installed.

The total area of overhaul facilities is 1892 m2 including trading floors and facades. All facilities were handed over on a turn-key basis. Work at each facility did not exceed 30 working days

Contract price: 3 030 949 RUR.

In 2015, Techexpo company became a winner of an electronic auction in the state order system for carrying out work for paving at a playground with the installation of children's equipment.

The playground area is 584 m2. To lay new paving, the old one made from sand and gravel was dismantled. In its place, a base made of gravel and stone screening was formed, and then new paving was installed.

The main condition for modern playgrounds is their safety. The new design of this site is a two-layer, seamless coating that meets European safety standards. It consists of a base - rubber crumb, and a rubber coating of various colors (lettuce green, green deep, green, sky blue, blue, red, orange, yellow black).

The curb stones were replaced in places of their complete or partial absence in the yard area. The asphalt concrete pavement, which was damaged during the work, was restored. The paving slabs were repaired - coatings from vibro-pressed concrete slabs 7P6 were installed. This is a reliable and durable coating, which is widely used for paving footpaths and parking lots.

The site was completed with play children and sporting equipment. It was developed in compliance with the requirements of modern design and functionally aimed at children development:

• Multi-purpose thematic play complex ‘Small City’ on two towers with shaped domes decorated with veneer banners and two metal slides.
• Swings on springs ‘Small Duck’, ‘Turtle’, swings "Scales", two-section swings
• Boom on the chains and Carousel are designed for active games of children outdoors.

• pendulum machine
• elliptical machine
• chest press machine

Every structure was installed considering the Russian GOST and attached to the foundation.

At all stages of work performance, certificates of quality for used materials, technical passports and other documents certifying the quality of materials, structures and parts, hygiene certificates (Sanitary - Epidemiological Report) for materials and paints used in the manufacture of equipment were represented.

Upon completion of the work, an examination was carried out, which established that our company had properly completed the work on the paving of the playground with the installation of children's equipment. The quality of products (children's and sports equipment) meets the requirements of regulatory documents, which is confirmed by equipment passports. Work was completed on time. 

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Contract price: 35 582 216 RUR

Electronic auction 44-FZ  № 0372200067817000158

The scope of work for the overhaul of the roadway and sidewalk of Tikhaya st., Nevskaya district, St. Petersburg, covered the repair of a two-lane highway with a parking lane of a total area of 4423 m2 and sidewalk with an area of 1898 m2. Works were carried out together with our partner Midas LLC.

Working documentation was developed and coordinated with all controlling and interested organizations, including the Traffic Committee, the Landscaping Committee, St. Petersburg State Public Institution "Center for Integrated Improvement", the Committee for Urban Planning and Architecture of St. Petersburg, the District Administration, the State Traffic Safety Inspectorate for St. Petersburg and the Leningrad region, St. Petersburg State Public Institution "Directorate for the Traffic Management of St. Petersburg", St. Petersburg State Budgetary Institution "Center for Traffic Management of St. Petersburg", energy supply and utilities organizations, owners and balance holders of utilities, structures, buildings, operating organizations, owners and holders of land plots that fall to the work area. The master plan of utility systems was agreed upon with the Department of Underground Structures of the Committee for Urban Development and Architecture.

The territory was examined for the presence of explosive objects by the authority for civil defense and emergencies, dismantling work was carried out, including land clearing.

The main works included:

• Reconstruction of the power supply line and outdoor lighting including the installation of outdoor lighting poles - the route length is 133,8 m.
• Reconstruction of the water supply system and replacement of valves and fire hydrants in the roadway with the installation of new ones without wells on the existing water supply networks.
• Reconstruction of storm sewers - the route length is 574 m including installation of stormwater wells and laying of stormwater connections.
• Removal of existing electrical cables from under the roadbed, as well as protection of existing utilities entering the building area (heating pipelines).
• According to the calculations, the road structure required more strength, so it was completely replaced with thicker layers. The new paving complies with SNiP norms, and the materials comply with GOST standards (hot asphalt concrete, crushed stone, sand, etc.). A system of road drainage and curb stone was installed.
• Territory landscaping works: new lawns, restoration of street landscaping. For this, lindens aged 5-10 years in the amount of 57 pieces and lilac seedlings aged 5-10 years in the amount of 122 pieces were planted.
• At the pedestrian crossing of 14.5 m2, tactile ground signs were installed, with the help of which visually impaired people receive information about traffic routes.
• The roadway is marked with thermoplastic with reflective elements using a cut-and-dry self-adhesive line.

For the period of construction work, environment protection measures were taken: places for the temporary storage of waste were organized taking into account sanitary-epidemiological and environmental requirements, timely removal of waste to specialized enterprises for the disposal of waste.

Upon completion of the work, the overhaul facility was accepted by the commission under the acceptance certificate of the completed overhaul facility (form No. KS-14) with the implementation of all legal and actual actions provided for by VSN 19-89 "Rules for the acceptance of work during the construction and repair of highways" approved by the Ministry of Highways of the Russian Soviet Federated Socialistic Republic 14.07.1989 No. NA-18/266.

Warranty period is established for:

• Paving -7 years;
• Utility systems - 10 years;
• Landscaping elements – 2 years;
• Thermoplastics road marking – 1 year.

назад

In late 2014, the overhaul of the concert hall for the building of the state-independent educational institution for extended education “Murmansk Regional Center for the Development of Children's and Youth Creativity "Lapland" in Murmansk was carried out.

The concert hall area is about 500 m2 including the scene and a sound-effects room. The overhaul was required to liquidate functional depreciation and physical wear of the concert hall, improve the interior, replace engineering lines, electric wiring, door and window frames.

The work started with dismantling the flooring underlay of the scene and audience hall. Logs were removed from boards and bars, plank bases of plated parquet, prefabricated wooden structures, closets, tables and chairs of the hall, the frame of wooden walls were dismantled. The under-roof ceiling was dismantled to the base, the electrical wiring of the hall and the stage was completely dismantled. As well as lamps, sockets, switches, and studio equipment.

Construction waste was removed and disposed of.

For electrical installation work and electric wiring replacement, repeated contour grounding was required. To this end, earthwork operations in the surrounding area were carried: soil excavation with laying cables into prepared tranches, pits were dug for grounding electrode with backfilling. After the installation of the grounding loop, landscaping work was completed, and the asphalt concrete pavement was restored.

The electrical wiring was completely replaced, cables for equipment and stage equipment were laid. Switchboards and control units were installed. New lamps were installed in the suspended ceilings, including LEDs in the hall. Emergency exit light indicators, switches and sockets. Stage lighting for the stage, stationary stage structures, grate and fence platforms, working galleries and bridges were installed.

For the floor of the stage and the auditory, the log was laid on brick columns. The floor covering of the stage is made of high-quality larch boards. This material is wear-resistant and can withstand heavy loads. In the auditory, a carpet was laid on the chipboard.

For heat and sound insulation of the floor, we used ISOVER mineral wool mats and Technoelast Acoustic roll sealing soundproofing material. For walls and ceiling - acoustic panels ECORHON FOCUS. The walls are lined with plasterboard and covered with washable wallpaper.

New seats in the amount of 404 pcs. were installed in the auditory.

The overhaul included the reconstruction of the sound-effects room and instrument room of the hall. Additional window openings in the premises were made. Floor, walls, and ceiling were aligned, prepared for the main covering. Ceramic granite tiles were laid on the floor, walls and ceiling were painted with water-based paint.

Metal rails and guards were additionally installed in the auditory, railings of stainless steel, blocks in external and doorways were installed, and partitions, and clad with decorative materials.

 Works were performed on a double-shift basis by 22 people.

Contract price: 34 195 640 RUR

The first stage of the overhaul of Turku st. started with the preparation of project documentation considering the requirements of current standards, regulations and specifications, construction estimate, and its coordination with all controlling and interested organizations including the Traffic Committee, the Landscaping Committee, St. Petersburg State Public Institution "Center for Integrated Improvement, the Committee for Urban Planning and Architecture of St. Petersburg, the District Administration, Administration of Gardening and Park Management, the State Traffic Safety Inspectorate for St. Petersburg and the Leningrad region, St. Petersburg State Public Institution "Directorate for the Traffic Management of St. Petersburg", St. Petersburg State Budgetary Institution "Center for Traffic Management of St. Petersburg", energy supply and utilities organizations, owners and balance holders of utilities, structures, buildings, operating organizations, owners and holders of land plots that fall to the work area.

• Length 501 meters
• Roadway width – 2 lanes – 6 meters
• Parking lane width – 2,5 meters
• Sidewalk width along residential house 3 meters
• Roadway width including parking – 3879 m2

According to the project, the overhaul involved not only the roadway and sidewalks but also parking spaces, as well as work was carried out to reconstruct the water piping and sewerage systems and landscaping work.

The facility was prepared for a major overhaul: earthworks operations were carried out including the dismantling of existing asphalt concrete pavement (6009.9 m3), the existing utilities, communication networks, as well as communications falling into the right of way (water piping, sewerage, which are held in the inventory of "Vodokanal St. Petersburg") were protected);

• According to the project, the Techexpo construction service completely replaced the road surface of Turku street with a more durable one with the use of structural layers of greater thickness, since the previous structure did not meet the requirements for strength and freeze resistance. Curb stones were installed and sidewalks were reinforced. The sidewalk pavement is made of asphalt concrete, pedestrian crossings were fitted with tactile signs with longitudinal ledges, and exits from adjacent territories (yards) were provided. A sidewalk was designed along parking spaces and residential buildings. In the places of crossings across the roadway, a lowered curb stone was installed specifically to ensure the convenience of movement of the disabled and people with limited mobility.
• As part of the reconstruction of water supply networks, 3 fire hydrants and 21 domestic sewage wells were adjusted. The existing wall covering, gate valves, flange smooth nozzles and couplings were dismantled. An AVK direct gate valve with a stem in the cover was installed. After completion of all work, the pipeline was flushed and disinfected.
• An additional support for outdoor lighting was installed.
• For the organization of traffic, road signs were installed according to GOST; speed breakers (IDN 500) and road markings with a white thermoplastic.
• Linden trees and lilac bushes were planted to restore the landscaping of the street. The project established alignment to ensure drainage and reinforcement of sidewalks with the installation of curb stones at the junction with lawns. The total area of the lawn is 4619 m2.