1. Muraki Y (1997). The Umbrella Method in Tunnelling. M.S, Civil Engineering, Massachusetts Institute of Technology.
2. Aksoy CO, Onargan T (2010). The role of umbrella arch and face bolt as deformation preventing support system in preventing building damages. Tunnelling and Underground Space Technology, vol. 25, pp. 553-559. [
DOI:10.1016/j.tust.2010.03.004]
3. Ohcak I (2008). Control of surface settlements with umbrella arch method in second stage excavations of Istanbul Metro. Tunnelling and Underground Space Technology, vol. 23, pp. 674-681. [
DOI:10.1016/j.tust.2007.12.005]
4. Peila D (2005). Ground Reinforcing for Tunnelling The Example of Steel Pipe Umbrella. ITA/AITES - Train-ing Course tunnel engineering.
5. Hefny AM, Zhao j, Ranjith P, Tan WL (2000). Numerical analysis for umbrella arch method in shallow large scale excavation in weak rock.
6. Carrieri G, Grasso PG, Mahtab A, Pelizza S (1991). Ten years of experience in the use of umbrella-arch for tunnelling. In: Proceedings of the congress on soil and rock improvement in underground works, Milano 1:99-111.
7. Carrieri G, Fiorotto R, Grasso P, Pelizza S (2002). Twenty years of experience in the use of the umbrella-arch method of support for tunnelling. In: Proceedings of 4th international workshop on Micropiles, Venice, Italy.
8. Lunardi P (2000). The design and construction of tunnels using the approach based on the analysis of con-trolled deformation in rocks and soils. In: Tunnels and tunneling international special supplement, ADECO-RS approach, May 2000, pp 3-30.
9. Yoo C, Shin HK (2003). Deformation behavior of tunnel face reinforced with longitudinal pipes-laboratory and numerical investigation. Tunn Undergr Space Technol 18:303-319. [
DOI:10.1016/S0886-7798(02)00101-3]
10. Kim SH, Baek SH, Moon HK (2005). A study on the reinforcement effect of umbrella arch method and prediction of tunnel crown and surface settlement. In: Proceedings of the international world tunnel congress and the 31st ITA, Istanbul, pp 245-251 [
DOI:10.1201/NOE0415374521.ch37]
11. Barisone G, Pigorini B, Pelizza S (1982). Umbrella arch method for tunnelling in difficult conditions-analysis of Italian cases. In: Proceedings of the fourth congress international association of engineering geology, New Delhi 4:15-27
12. Gangale G, Corona G, Pelizza S (1992). The Messina-Palermo motorway: complex rock masses and tunnel-ing problems. In: Proceedings of the international congress towards new worlds in tunneling, Acapulco, vol 2, pp 873-880
13. Murata M, Okazawa T, Harunaka K, Tamai A (1996). Shallow twin tunnel for six lanes beneath densely residential area. North Am Tunn 96:371-380
14. Shin HS, Han KC, Sunwoo C, Choi SO, Choi YK (1999). Collapse of a tunnel in weak rock and the optimal design of the support system. Proceedings of the Ninth International Congress on Rock Mechanics, Paris
15. Haruyama K, Teramoto S, Harada H, Mori M (2001). Construction of urban expressway tunnel with special large cross-section by NATM Metropolitan Inter-city Highway (ken-O-Do) Ome Tunnel. In: Proceedings of international symposium, Modern Tunnelling Science and Technology 693-698. [
DOI:10.1201/9781003077534-16]
16. Sekimoto H, Kameoka Y, Takehara H (2001). Countermeasures for surface settlement in constructing shal-low overburden urban tunnels penetrated through active fault. In: Proceedings of modern tunneling sci-ence and technology, pp 711-716. [
DOI:10.1201/9781003077534-19]
17. Aksoy CO, Onargan T (2010). The role of umbrella arch and face bolt as deformation preventing support system in preventing building damages. Tunn Undergr Space Technol 25(5):553-559 [
DOI:10.1016/j.tust.2010.03.004]
18. Volkmann GM, Schubert W (2006). A Contribution to the Design of Tunnels Supported by a Pipe Roof. The 41st U.S. Rock Mechanics Symp.
19. Volkmann GM, Schubert W (2008). Tender document specifications for pipe umbrella installation methods. The World Tunnel Congress - Underground Facilities for Better Environment and Safety, india.
20. Volkmann GM, Schubert W (2007). Geotechnical Model for Pipe Roof Supports in Tunneling. The 33rd ITA-AITES World Tunneling Congress. [
DOI:10.1201/NOE0415408073.ch125]
21. Volkmann GM, Krenn F (2005). Back-Calculated Interacting Loads on Pipes of Pipe Umbrella Support Systems.
22. Shin JH, Choi YK., Kwon OY, Lee SD (2008). Model testing for pipe-reinforced tunnel heading in a granular soil. Tunnelling and Underground Space Technology, vol. 23, pp. 241-250. [
DOI:10.1016/j.tust.2007.04.012]
23. Doi Y, Otani T, Shingi M (2009) The Optimum Distance of Roof Umbrella Method for Soft Ground by Us-ing PFC. Analysis of Discontinuous Deformation: New Developments and Applications, pp. 461-468. [
DOI:10.3850/9789810844554-0102]
24. Shinji M, Sato T, Doi Y, Ootani T (2010). The Optimum Distance of Roof Umbrella by Using the Distinct Element Method.
25. Juneja A, Hegde A, Lee FH, Yeo CH (2010). Centrifuge modelling of tunnel face reinforcement using fore-poling. Tunnelling and Underground Space Technology, vol. 25, pp. 377-381. [
DOI:10.1016/j.tust.2010.01.013]
26. A. Asadollahi, M. a Mossavi, Mohammad Hossein Khosravi (2018). Numerical Investigation of the Influence of Cement Injection on Ground Settlement due to Excavating in Soft Soils (Case Study: Station E on Line 2 of Karaj Metro)
27. Placie, M. Merciful, AS. (2016). Evaluation of the effect of forging pipe lengths on tunnel shrinkage, 9th National Congress of Civil Engineering, Ferdowsi University of Mashhad, Iran
28. Hashemi Esfahanian, M. Kamali Dehkordi, P. (2015). Investigation of Tunnel Maintenance Types by Umbilical Arch Method, Tenth International Congress of Civil Engineering, Tabriz, Tabriz University, Faculty of Civil Engineering.
29. A. Laki Rouhani and S. Jolfaei (2018), Complete three-dimensional modeling of tunnel excavation and cover installation with emphasis on step drilling, comparison of three-dimensional and two-dimensional analysis, Amirkabir Journal of Civil Engineering, 50 (1) (2018) 51-52 [
DOI:10.22060/ceej.2016.708]
30. Maleknia, A. (2010),"forepoling in tunnel excavation", Report of Behrooz Construction Company, Tehran,
31. Sdegi A, Sahraki N. (2016)." The Impact of Purpleling Method on the Stability of the Tunnel Working Front (Case study: C2 metro station, Karaj)", Ninth National Congress of Civil Engineering., Ferdowsi University of Mashhad, Iran
32. Sakurai S, Kawashima I, Otani T (1995). A criterion for assessing the stability of tunnels. ISRM Intern. Symp, vol.2, pp. 969-973.