AC2 provides technical consulting services in geotechnical and civil engineering, designing technical solutions to meet customer needs. It specializes in soil treatment and foundation solutions, responding to growing demand. AC2 aims to fully satisfy clients with a specialized technical staff that has years of experience in geotechnical engineering for both project development and construction.

1. Projects and Technical
Consulting
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2. Presentation
AC2 carries out its activities in developing projects and providing technical consulting
services in geotechnical and civil engineering, designing and promoting the
development of technical solutions to meet the needs of its customers.
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3. Presentation
AC2 is especially suited in the field of special foundations and soil treatment solutions,
responding to a growing demand that has been evident in recent years in Portugal and
abroad, in this particular area.
AC2 promotes the full satisfaction of its clients, with a specialized technical staff that
develops, for several years, its professional activity in the area of geotechnical engineering,
both within project and work.
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4. Services
Design and Technical Consulting:
• Ground improvement; • Slope stabilization;
• Special foundations; • Foundations in the rehabilitation of structures;
• Earth retention and shoring; • Dewatering.
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5. Services
Techniques:
Vibroreplacement
(stone columns)
Vibrocompaction
Consolidation of soils
Jet Grouting
Deep-soil-mixing
Injections
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6. Services
Techniques:
Anchors and nailing
Well points and deep wells
Rigid inclusions
Piles and micropiles
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7. Team
António Jorge Ferreira Cristóvão
Education:
 Degree in Civil Engineering— IST (1971)
 Master in Soil Mechanics— UNL (1980)
Professional Techniques Associations:
 Senior Member of the Institute of Engineers of Portugal (member of FEANI –
European Federation of National Engineering Association).
 Geotechnical Engineering Specialist – Institute of Engineers of Portugal
 Member of the Portuguese Society for Geotechnics
António Alves Cristóvão
Educations:
 Degree in Civil Engineering (2005)
Professional Techniques Associations:
 Effective Member Institute of Engineers of Portugal (member of FEANI –
European Federation of National Engineering Association)
 Member of the Portuguese Society for Geotechnics
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8. Works
Main Projects and Studies Developed
• ―Frente Ribeirinha de Portimão ―- soil improvement (stone columns) for the dam foundation (Consulmar);
 ―Poço do Bispo dock‖, Lisbon – soil improvement of landfills dock - stone columns and vertical drains (WW);
 ―IC2 – highway in Coimbra‖ - Foundations reinforcement of the pillar P1 in viaduct PS4 - micropiles and retaining
structure (Gapres);
 ―IC32 Baixo Tejo's grant- highway at kms 5+500 to 5+750.‖ - soil improvement (stone columns) under the embankment
with 10 meters high —foundation, global stability and reducing the potential for liquefaction (Keller Terra);
 ―Deep foundations of High Voltage posts P194, P195 and P196 on the railway Fanhões/Marateca‖, Vila Franca de Xira -
reinforced concrete piles with 34 m depth on the foundations of high voltage posts with 50 m high (alluvium soil near
tejo's river) (Ekleipsis);
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9. Works
Main Projects and Studies Developed
―Highway IC2 - Litoral Oeste grant (IC36 node - EN109 node)‖ - soil improvement on the highway embankments (stone
columns): settlement redution on foundations and overall stability (static and cyclic earthquake analysis). (Keller Terra);
 Deep foundations (micropiles) in the rehabilitation of ―Casa da Severa - Fado's Museum‖ - Lisboa (MB Engenharia);
 Rehabilitation of foundations in Cultural Centre in Setúbal - micropiles (Soproeng);
 Foundations of PT 4.5, structure connecting the superstructure to the indirect foundations – Lisbon Airport (Ekleipsis);
―Parque Verde da Vila‖, Porto de Mós – soil improvement (stone columns) on settlement reduction (Keller Terra);
―IC9 Concessão do Litoral Oeste, haul Fátima / Ourém‖ - improvement of soils in the foundation and stability of road
embankments (Keller Terra);
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10. Works
Main Projects and Studies Developed
 ―Hotel Península‖, Luanda Island - Angola - vibrocompactation (Segadães Tavares);
 Valbom’s School, Gondomar – stone columns in building foundation (Keller Terra);
 Intermarché Store, Batalha - stone columns in building foundation (Keller Terra);
 Ford Lusitana warehouse, Alverca do Ribatejo - stone columns (Keller Terra).
 Marinhais School - stone columns in building foundation (Keller Terra);
 LIDl Store, Gondomar - stone columns in warehouse foundation (Keller Terra);
 Project for Fine Sand retention next to the Dry dock of Navalria, Aveiro (Martifer
Energy Systems);
 Freixieiro watter tanks- aprevious study of foundations with jet grouting (Keller Terra);
 Modernization of the north railway line: stability of the founding of temporary diversion road at km
4+300 from North Railway, strech Santarém / Mato Miranda (Gapres);
 Consolidation of the North Clift in Vale de Cavaleiros Port , Cabo Verde (Consulmar);
 Training center of Alverca Futbol Club – soil improvment – stone columns (Keller Terra);
 School EB/JI de Sampaio, Sesimbra – stone columns(in building foundation (Keller Terra);
 Excavation and retaining design for Nautas School, Oeiras (Tapete Voador);
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11. Works
Main Projects and Studies Developed
Bounduelle’s industrial warehouse, Santarém- soil improvement (stone columns) for the warehouse foundation (pavements
and footings)(Keller Terra);
EN3 Bridge of Vila Nova da Rainha at km 4+100 on rivers Ota and Alenquer - project excavation and retaining structure
(Soproel);
School of Salvaterra de Magos – stone columns in building foundation (Keller Terra);
EN4 PS in railway at km 142+000, Rehabilitation Work of Art- Project Excavation and retaining type Berlim (Soproel);
Pingo Doce, Store , S. Félix da Marinha – stone columns in building foundation (Keller Terra);
Sobralinho’s industrial warehouses - stone columns for foundation of 8 warehouses(Keller Terra).
 Pumping stations (EE. Folgados, EE. Abrunheira; EE Quinta da Marinha e EE de Nadrupe) - cover slabs and foundations
(Soproel).
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12. Works
Main Projects and Studies Developed
Dyque of Moita's river - double sheet pile wall (220m long on alluvial soil) for the river dam. Structure behavior on overall
stability (Moita's City Council); Retaining structure on national road EN116 - retaining and excavation stability (Soproel);
 SPC multiuse warehouse 1 and 2, Alverca do Ribatejo - soil improvement (injected stone columns) for 2 warehouses
foundations (pavements and footings) (Keller Terra);
 Logistic platform of Castanheira do Ribatejo - watter tank foundation - soil improvement (stone columns and injected stone
columns) for settlement reduction and overall stability of the embankment (Keller Terra);
National road EN 360 - Beneficiation roads in the southern - retaining structure with gabion wall 5m high (Soproel).
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13. Contacts
GPS Coordinates: 38.703564ºW, -9.389405ºN
General
Tlm: +351 93 222 38 62
+351 96 672 70 20
E-mail: geral@ac2geo.com
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14. AC2
On the basis of your
project ...
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