Open AccessDesign and Application of Mechanized Construction Equipment in Shallow Excavation Precast Utility Tunnel
Author(s) -
Qian Kong,
Rui Yang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/783/1/012046
Subject(s) - precast concrete , jacking , excavation , tunnel construction , engineering , civil engineering , foundation (evidence) , tunnel boring machine , bracing , construction engineering , geotechnical engineering , structural engineering , art , archaeology , art history , performance art , brace , history
Traditional open-cut method for utility tunnel has many disadvantages such as long-term occupation and large area of land, great disturbance to urban traffic and environment, high labour intensity of workers and so on. In order to overcome the disadvantages above, a machine for prefabricated utility tunnel construction was designed which drawing on the working principle of shield machine and pipe jacking machine. The above-machine is applied in shulong road utility tunnel of Chengdu. The applicable results show that: (1) The above-machine achieve movable streamlined synchronous construction of earth excavation, components assembling and earth backfill. It improve the shortcoming of traditional open cut method and cancel the majority of foundation pit bracing structure. (2) The above-machine can make mechanized and assemblage construction of shallow excavation precast utility tunnel come true. It effectively control construction quality and reduce difficulty of construction management.