SECTION 819 MICROTUNNELING AND PIPE …

SECTION 819. MICROTUNNELING AND pipe - jacked TUNNELS. 819- 1 description : This Work consists of all materials, labor and equipment required to directly install product pipelines typically 24 and larger, underground in a single pass using an appropriate tunnel boring machine combined with pipe -jacking techniques. This specification also covers Pilot Tube MICROTUNNELING (PTMT). Pilot Tube MICROTUNNELING shall be defined as an alternate MICROTUNNELING system typically for sizes 6" through 27" inner diameter. This system is a two or three stage system, which allows both trenchless guided installation of house connection sewers as well as accurate direct jacking of smaller diameter pipelines without use of casing. Scope of Work: a. Construction of tunnels by one-pass methods with or without man entry. The construction methods involve jacking pipe following a hand-shield excavation or a tunnel boring machine (TBM) or micro- tunnel boring machine (MTBM), with the pipe serving as both the tunnel liner during construction and the sewer pipe after completion of construction.

SP 1 of 22 Rev. 10/2015 . SECTION 819 . MICROTUNNELING AND PIPE-JACKED TUNNELS . 819-1 DESCRIPTION: This Work consists of all materials, labor and equipment required to directly

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  Section, Tunnel, Descriptions, Pipe, 1 description, Microtunneling, Section 819 microtunneling and pipe, Section 819, Microtunneling and pipe jacked tunnels, Jacked

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