Construction method of sheet-assembled steel corrugated pipe formed culvert
A construction method and corrugated pipe technology, which is applied in the construction field of piece-assembled steel corrugated pipe forming culverts, can solve problems such as unfavorable subgrade culvert construction, concrete structures that are difficult to meet quality and construction period requirements, and achieve simplified construction procedures and shortened construction periods. , to ensure the rapid formation of the effect
Inactive Publication Date: 2017-09-05
CHINA METALLURGICAL CONSTR ENG GRP
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Problems solved by technology
In areas where human resources are extremely scarce or plateau hypoxic areas are affected by the construction period or the construction season and climate, it is difficult to meet the quality and construction period requirements with concrete structures; under complex geological conditions, it is not conducive to the construction of subgrade culverts, which is mainly due to the formation of subgrade culverts. Construction techniques and methods need improvement
Method used
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[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0026] like figure 1 , 2 , 3, 4, 5, and 6, the construction method of the piece-assembled steel bellows forming culvert of the present invention can shorten the construction period of the subgrade culvert and road construction, ensure the rapid formation of the subgrade culvert under complex geological conditions, and realize Mass effect of complete structure of subgrade culvert. The present invention comprises the steps:
[0027] (1) Excavate the location of the culvert according to the requirements of the process design to form the foundation pit of the culvert; when the base soil is bad soil layer such as silt, it should be replaced and filled; over-excavation should be avoided, if over-excavation, the loose part should be removed ;The soil foundation pit dug to the elevation shall not be exposed, disturbed or soaked for a long time, and ...
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The invention discloses a construction method for forming a culvert formed by piece-assembled steel bellows. Excavation is carried out at the position of the culvert to form a foundation pit of the culvert; gravel is laid on the foundation pit of the culvert to form a gravel base layer; Mix the concrete layer; prepare a number of steel corrugated pipes with the same radian to assemble loose pieces, and set bolt holes around each piece of steel bellows assembled pieces; Two pieces of steel bellows are assembled into loose pieces and bolts are inserted into the bolt holes corresponding to them, and flat washers and convex washers are set, and nuts are tightened to form a circular steel bellows joint; steel bellows joints and pipe joints Between them, bolts and nuts are penetrated into the corresponding bolt holes provided on the adjacent steel bellows pipe joints to connect, and the length is extended along the axial connection. The construction method of the invention can simplify the construction process, can quickly form roadbed culverts, and ensure the rapid formation of roadbeds under different geological conditions.
Description
technical field [0001] The invention belongs to the field of construction methods of culverts, and in particular relates to a construction method of culverts formed by piece-assembled steel corrugated pipes. Background technique [0002] Traditional subgrade culvert forming construction usually uses rigid prefabricated concrete pipes to pre-embed or cast-in-place concrete for construction and molding, which is not suitable for the rapid formation of arc-shaped subgrade culverts and general subgrade culverts; For poor geological foundation sections, it is difficult to deal with the foundation when the corresponding concrete arch culvert is used, and the construction quality is difficult to guarantee and the cost is high. Secondly, the natural water system in mountainous areas is complex, and when straight culverts are required, a large volume of mountain excavation is required, and curved steel corrugated pipe culverts can be installed for disposal. Due to the shortage of gr...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E01F5/00E02D29/045E02D29/16E01C3/06
CPCE01F5/005E01C3/06E02D29/045E02D29/16
Inventor 陈国民史继凌范建波程实
Owner CHINA METALLURGICAL CONSTR ENG GRP