| 摘要 |
A device for reinforcing a pylon foundation against being pulled out, said foundation comprising at least one block ( 10 ) which is buried in the ground of the site of the foundation and that presents a portion ( 12 ) of greatest section in a horizontal plane, the device comprising a slab ( 20 ) buried in the ground and disposed around said block ( 10 ) between said portion ( 12 ) and the surface (T) of the ground, said slab extending beyond the vertical projection of the periphery of said portion ( 12 ). The slab ( 20 ) may be made from a mixture comprising materials extracted from the site or materials brought in from elsewhere (such as a treated gravel mix) or a mixture of both, together with at least one binder. Advantageously, the total proportion of binder in said mixture lies in the range 3% to 15% by weight. The device is used to compensate for a deficit in resistance to being pulled out presented by an existing shallow foundation for a pylon.
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