| 摘要 |
The present invitation relates to a soil anchor footing supporting system within the ground surface to support steel or concrete column, brick or block wall, light post, sign post, substation equipment, pre-cast panel, retaining wall etc. It comprises of a footing slab (2) made of concrete; plurality of deformed steel bars (1) or fiber reinforced polymer (FRP) bars embedded in the lower surface of the concrete slab (2) and plurality of anchor bolts (4) or reinforcing starter bars which are embedded into upper surface of concrete slab (2) to suit steel or concrete column. The bars, which act as mini piles, are configured for ground penetration and a concrete slab is cast on top to encase all the bars and is capable of holding desired loads. These footings can be cast-in-situ type where the bars are pushed into ground (3) individually or in groups and concrete is cast on top, or it can be pre-cast type where, the whole footing is pushed into ground using pile driving equipment or mobile press. |
| 主权项 |
1. A soil anchor footing slab assembly for supporting a load column above the ground at a predetermined ground site location, comprising:
a pre-cast footing slab, pre-cast at a location remote from a predetermined ground site location at which said pre-cast footing slab is to be affixed to the ground, having a substantially flat configuration with a planar upper surface and an opposed mutually parallel planar lower surface capable of supporting a desired load, wherein said pre-cast footing slab has a substantially uniform thickness and wherein a plurality of enlarged holes are formed within said pre-cast footing slab; a plurality of first vertically oriented anchor bars comprising elongated linear bars selected from the group comprising deformed steel bars, fiber reinforced polymer (FRP) bars, stainless steel bars, plain steel bars and threaded rods, having good soil anchorage capacity resulting in high downward and uplift resistance capacity with a footing end configured for ground penetration, and arranged within a predetermined two-dimensional pattern wherein upper end portions of said plurality of first vertically oriented anchor bars are adapted to be fixed within said pre-cast footing slab as a result of said plurality of first vertically oriented anchor bars being inserted into and through said plurality of enlarged holes defined within said pre-cast footing slab by apparatus selected from the group comprising a hammer, pile driving equipment, and a mobile press, until upper end portions of said plurality of first vertically oriented anchor bars are flush with upper surface portions of said pre-cast footing slab or disposed slightly below said upper surface portions of said pre-cast footing slab while lower end portions of said plurality of first vertically oriented anchor bars extend vertically downwardly from lower surface portions of said pre-cast slab; means disposed within upper portions of said plurality of enlarged holes defined within said pre-cast footing slab and annularly surrounding said upper end portions of said plurality of first vertically oriented anchor bars such that said plurality of oriented anchor bars are effectively connected to said pre-cast footing slab and wherein all of said upper end portions of said first vertically oriented anchor bars are effectively connected together by means of said pre-cast footing slab; said pre-cast slab and said plurality of first vertically oriented anchor bars comprising an integral one-piece structure fixedly secured together prior to the pre-cast footing slab, along with said plurality of first vertically oriented anchor bars, being deposited into the predetermined ground site location, such that when said pre-cast slab, along with said plurality of first vertically oriented anchor bars, is disposed above the predetermined ground site location and pushed downwardly by applying uniform pressure to upper surface portions of said pre-cast footing slab using apparatus selected from the group comprising a hammer, pile-driving equipment, and a mobile press, said pre-cast footing slab will be deposited into the ground and lower end portions of said plurality of first vertically oriented anchor bars will enter the ground for effectively securing said pre-cast footing slab to the ground and thereby resisting uplift and downward forces; and a plurality of second bars having lower end portions thereof embedded within upper surface portions of said pre-cast footing slab while upper end portions of said plurality of second bars project vertically upwardly above said upper surface portions of said pre-cast footing slab for embedment within and connection to a load column to be mounted upon, secured to, and supported by said pre-cast footing slab. |
