Mandro  and  Chase Geotechnique ,  throughout their  30 years of activity,  have maintained a strong and active research and development department. The group  experts led by our mentor and managing director using considerable databases have carried out numerous research projects, some in collaboration with well-known universities and research  institutions.

Of these projects, over 30 papers have been published in well-known professional journals and international conferences.

presented  in  A list of these  publications is presented herein.  Numerous other topics are  available in-group archives and available by permission.

Remedial work for reduction of differential  settlement in heavy  structures: 

This method, which is developed by Mandro was first used to in a  large cement silo which had  differential  settlements of about 65 centimeters. 

Using specially designed steel chains, the underlying soil was sawed off in thin layers, such that  the structure was tilted back to an almost horizontal position.   



Collapsible Soils:

Extensive study on  understanding  the  behavior  of  collapsible soils  has been done at  Mandro's R&D   department.

A mathematical model has been developed, using the stability of large voids or macro-pores in the soil body, and taking into account parameters  like  degree of saturation, void ratio,  article sizes, cementation agents, and  loading characteristics.

Numerical simulation is   possible by implementing this model.

The brown areas in   the Iran map shows the existence

of the collapsible soils.  




Partially Saturated Soils:

Another research area that  has been  studied by us is the behavior of partially saturated soil. The experimental and mathematical  studies show that the  preferential orientations  of macro-pores, which are  influenced by the  type of deposition, affect the  volumetric strains of  soils at various saturation ratios.




Publication :

   1. Amirsoleymani, T. (1998): "The stabilization of two apartment blocks on a sliding hill, Fourth 
International  Conference on Case Histories in Geotechnical Engineering, St. Louis Missouri, U.S.A.

   2. Amirsoleymani, T. (1996): 'New method to determine the magnitude of lateral forces on retaining walls',  Technical Report, Iranian Society of Structural Engineer, Tehran.

   3. Amirsoleymani, T. and etc. (1995): 'How to overcome the imbalance of opportunity between Consultants  of Developing Countries and Consultants of Developed Countries', Report on Workshop 5,

 International  Federation of Consulting Engineers (FIDIC) Istanbul.

   4. Amirsoleymani, T. (1995): 'Influence of deposition on deformation of unsaturated soils', First International  Federation on Unsaturated Soils, pp. 687-649, Presses Ponts et Chousses, Paris.

   5. Amirsoleymani, T. (1994): 'Shear Strength of unsaturated soils used in The Design of Earth Dams', Published report, Iranian Society of Geotechnical Engineers, 35 Pages.

   6. Khamehchiyan, M, Iwao Y. and Amirsoleymani, T. (1994): 'Effect of calcium carbonate content on engineering properties of marly rocks', Proceeding Seventh International Congress. Int. Assoc. of

  Engineering Geology, pp. 597-602, Balkema, Lisbon..

   7. Amirsoleymani, T. (1994): 'Optimization of shape of underground opening near fault zones', Proceeding of  International Symposium on underground opening for public us, pp. 55-64,Norwegian Chartered Civil  Engineers, Gjovik, Norway.

   8. Amirsoleymani, T. (1994): 'Method for locating cavities under dams or adjacent to tunnels', Pyam Abadgaran (monthly publication for Syndicate of Iranian Contractors) No. 102, pp. 12-15, Tehran.

   9. Amirsoleymani, T. (1994): 'Consolidation of partially saturated silts', Proceeding of the XIII International  Conference on Soil Mechanics and Foundation Engineering, Vol 4, pp. 1531-1534,

 New Dehli, India.

   10. Amirsoleymani, T. (1993): 'Deposition and the behavior of partially saturated silts', International Symposium on Engineering Characteristics of Arid Soils, pp.207-214 City University, London.

   11. Amirsoleymani, T. (1993): 'Design and construction of a floating foundation at Gheshm Island', Second  International Seminar on Soil  Mechanics and Foundation Engineering pp.150-162, Tehran, Iran.

   12. Amirsoleymani, T. (1993): 'The performance of structures after imposed rotations', Proceedings: Third   International Conference on Case  History in Geotechnical Engineering Vol. I, pp.273-278, St.Louis,   Missouri, U.S.A.

   13. Amirsoleymani, T. (1991): 'Elimination of excessive differential settlement by different methods', Proceeding of the Ninth Asian Regional  Conference on Soil Mechanics and Foundation Engineering  Vol.2.,   pp. 351-354, Bangkok, Thailand.

   14. Amirsoleymani, T. (1991): 'Removing soil layer under foundations to rotate buildings', s of   Ninth Asian Regional Conference on Soil Mechanics and Foundation Engineering Vol. 1, pp. 201-204,  Bangkok, Thailand.

   15. Amirsoleymani, T. (1991): 'Stability of tapered concrete cantilever beams under torsion', American Concrete Institute (ACI), International Conference on Evaluation and Rehabilitation of Concrete Structures and Innovations in Design SP 128-64, Vol. 11, pp 1033-1047,  Hong Kong.

   16. Amirsoleymani, T. (1989): 'Mathematical approach to evaluate the behavior of collapsible soils', Proceedings of the Twelfth International Conference on Soil Mechanics and Foundation Engineering Vol. 1, pp. 575-582, Rio De Janeiro, Brazil.

   17. Amirsoleymani, T. (1989): 'The effects of weathering of rock slopes on the stability of tunnels adjacent to  a bridge', Proceeding of the Second International Conference of Foundation and Tunnels  University of   Edinburgh, U.K.

   18. Amirsoleymani, T. (1989): 'New method to displace and to rotate buildings (Mashhad Silos) ', First International Seminar of Soil Mechanics and Foundation Engineering of Iran. Iran Plan and Budget Organization, Vol. 1, pp. 243-259 Tehran, Iran.

   19. Amirsoleymani, T. (1989): 'The evaluation of settlement of dam foundations and canals caused by increased moisture content', First Geotechnical Workshop in Dam Design and Water Resources. Iranian  Committee of Large Dams (IRCOLD), pp. 22-33, Tehran, Iran.

   20. Amirsoleymani, T. (1989): 'The displacement and rotation of Mashhad Silo', Published report, Iranian Society of Geotechnical Engineers,  43 Pages.

   21. Amirsoleymani, T. (1988): 'A fundamental approach to evaluate the behavior of collapsible soils', Proceeding of the International Conference on Engineering Problems of Regional Soils, Beijing, China.

   22. Amirsoleymani, T. (1988): 'Design of tunnels with minimum tangential stresses', Proceedings of  the Second International Conference on Construction in Mining Areas of Abandoned Mine workings88, pp. 125-131, University of Edinburgh, U.K.

   23. Amirsoleymani, T. (1988): 'Geometric design of tunnels in highly stressed rocks', Proceedings
 International Symposium on Tunneling for  Water Resources and power projects, pp.111-116, New Delhi, India.

   24. Amirsoleymani, T. (1985): 'Effects of weathering on properties of marl with special reference to the vaiont slide water resources.Publication of Ministry of Water and Power Resources of Iran, pp.123-130.

   25. Amirsoleymani, T. (1986): 'The procedure for approximate determination of in-situ stresses in a rock mass for design of underground structures', Proceeding of the Second International Conference on Construction of Tunnels in Iran, Tehran.

   26. Amirsoleymani, T. (1985): 'The important factors which affect the stability of tunnels', Iran Ministry of   Plan and Budget. Tehran, Iran.

   27. Amirsoleymani, T. (1977): 'Standardization of building materials in Iran', Seminar on building materials, Ministry of Housing and Development, Tehran, Iran  .

   28. Amirsoleymani, T. (1971): 'Optimization in building design', Research bulletin of Faculty of Technology  University of Tehran. pp. 101-129, Tehran, Iran.

   29. Amirsoleymani, T. (1970): 'The use of rice husk in building materials', Regional Conference of

 Central  Treaty Organization (Pakistan, Iran   and Turkey), Lahore, Pakistan.

   30. Amirsoleymani, T. (19): Packing of granular materials with special reference to triaxial testing. This  presented to the University of Birmingham, England as Partial Requirement for a degree of  Doctor of  Philosophy.
   31. Amirsoleymani, T. (1966): Discussion 'The influence of End Restraint on the Compression strength of a  Cohesion less Soil', Geotechnique, volume XVI No. 2, pp. 173-175.

  32. Amirsoleymani, T. (1964): 'Properties of Compacted Keuper Marl', research bulletin of Department of Transportation and  Environmental  Planning - University of Birmingham, U.K.