Novel construction method of large-diameter composite structure pile consolidated foundation

Novel construction method of large-diameter composite structure pile consolidated foundation

  • CN 105,507,227 A
  • Filed: 12/04/2015
  • Published: 04/20/2016
  • Est. Priority Date: 12/04/2015
  • Status: Active Application
First Claim
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1. a Novel major diameter composite construction stake consolidated subsoil construction method, it is characterized in that, it comprises the following steps:

  • 1) foundation condition treating construction area is analyzed, and determines to divide and each layer physico-mechanical properties the layer group of the deep soft soil foundation in this region;

    2) reinforcing pile (1) is set in region to be onstructed, reinforcing pile (1) bottom extend in soft layer, soft layer (7) is stretched out on reinforcing pile (1) top, described reinforcing pile (1) radially divides three layers of layout, comprises internal layer pile body (11), middle level net cylinder (12) and the permeable geomembrane of skin (13) respectively;

    The mesh sheet that described net cylinder (12) is made for modified polyethylene material or modified polypropylene material surrounds;

    3) after reinforcing pile construction, pile cover (8) is built on reinforcing pile (1) top, lay composite cushion subsequently, composite cushion comprises bed course (4) on rubble underlayer (2), steel plastic geogrid (3) and rubble;

    4) after composite cushion construction, by different engineering properties and technical requirements, above composite cushion, carry out roadbed (5) fill;

    5) roadbed (5) enters the settlement stability phase, carries out settlement observation and stability analysis judgement, after the settlement stability observation and analysis result of filling layer meets deck construction conditions, carry out upper structural layer construction within the period demand phase.

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