High-speed railway asphalt graded broken stone foundation bed and construction method thereof
A technology of graded crushed stone and high-speed railway, applied in the direction of road, track, ballast layer, etc., can solve the problem that asphalt graded crushed stone is difficult to be compacted to the target porosity, unable to meet the performance requirements of indoor mix ratio, asphalt grading Gravel aging and other problems, to achieve the effect of improving the quality control system, improving the bearing capacity of the roadbed, waterproof and drainage capacity, and prolonging the service life
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Embodiment 1
[0085] For a site, the designed thickness of the asphalt graded macadam bed is 8cm, and the specification of the asphalt graded macadam used is AGCS-16. For the sections that meet the construction conditions of the site, the construction will be carried out in 4 days.
[0086] Day 1:
[0087] (1) Before the construction of asphalt graded macadam, check and confirm that the pre-buried pipelines and cables have been constructed, so as to avoid excavation after the completion of asphalt graded macadam, which will damage the integrity of asphalt graded macadam. (2) Use anti-pollution blankets to protect cable trough drains, water collection wells, catenary pillars, etc. (3) Protect the subgrade deformation observation device by using a known protection device. (4) Review the top elevation, geometric size and quality of the graded crushed stones on the surface of the subgrade bed, so that the top elevation, geometric dimensions and quality of the graded crushed stones on the surf...
Embodiment 2
[0100] For a site, the design thickness of the asphalt graded gravel bed is 15cm, the specification of the upper layer of asphalt graded gravel is AGCS-16, and the thickness is controlled according to 8cm; the specification of the lower layer of asphalt graded gravel is AGCS-20, and the thickness According to the control of 7cm; the section with construction conditions for the site shall be constructed in 5 days.
[0101] Day 1:
[0102] (1) Before the construction of asphalt graded macadam, check and confirm that the pre-buried pipelines and cables have been constructed, so as to avoid excavation after the completion of asphalt graded macadam, which will damage the integrity of asphalt graded macadam. (2) Use anti-pollution blankets to protect cable trough drains, water collection wells, catenary pillars, etc. (3) Protect the subgrade deformation observation device by using a known protection device. (4) Review the top surface elevation, geometric size and quality of the gr...
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