Very-high performance concrete prefabricated assembled pipe gallery and construction method

Abstract

The invention discloses a very-high performance concrete prefabricated assembled pipe gallery and a construction method. The pipe gallery is formed by inserting and splicing a plurality of concrete rectangular culvert monomers which are integrally formed front and back; each of the rectangular culvert monomers comprises a side plate, a bottom plate, a top plate and a partition plate; reinforcing rib structures are arranged on the outer side surfaces of the side plate and the top plate; axil angles are arranged at the connections of the side plate and the bottom plate and the side plate and thetop plate; prestress locking devices are arranged at the axil angles; inserting structures which are matched are arranged at the front and back ends of each of rectangular culvert monomers; and the inserting structures are waterproof devices. The construction method comprises the following steps: 1) preparation of the prefabricated rectangular culvert monomers; 2) excavation and support of foundation pits; 3) foundation treatment and cushion ply paving; 4) hoisting of the prefabricated rectangular culvert monomer sections; 5) penetrating and tensioning of the prestress ribs in position; 6) waterproof experiment of the pipe gallery; and 7) soil mass backfilling. The pipe gallery material dosage is reduced greatly, the self weight is reduced greatly, and the very-high performance concrete prefabricated assembled pipe gallery is convenient to transport and hoist, few in step, short in construction period and good in waterproofness and durability.

Description

technical field [0001] The invention belongs to the field of comprehensive pipe gallery, and in particular relates to an ultra-high performance concrete prefabricated and assembled comprehensive pipe gallery and a construction method. Background technique [0002] The comprehensive pipe gallery is to build a tunnel space under the municipal road, which integrates various engineering pipelines such as water supply and drainage, heat, gas, electricity, communication, radio and television, etc., and sets up special facilities such as inspection ports and feeding ports for unified construction management. Eliminating the independent structures and earthwork excavation of the pipeline itself can effectively and intensively utilize urban space resources. Its advantages are: one-time excavation, centralized construction, avoiding repeated excavation of the same road section; it greatly facilitates the maintenance and repair of municipal pipelines such as electricity, communication,...

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Problems solved by technology

[0004] The purpose of the present invention is to make up for the deficiencies of the prior art, to provide an ultra-high-performance concrete prefabricated integrated pipe gallery and its construction method, and to solve the problems existing in ordinary concrete cast-in-place pipe galleries and prefabricated pipe galleries

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