A basalt fiber anchoring system with accurate sectioned grouting includes: a plurality of first base plates arranged in an anchoring borehole, where every two first base plates are arranged at an upper end and a lower end of a section to be grouted respectively; a plurality of basalt fiber reinforced plastics (BFRP) penetrating the plurality of first base plates; and a grouting device including a valve pipe and a grouting core pipe, where the valve pipe penetrates all the first base plates, a plurality of grouting ports are defined in a pipe wall of the valve pipe, each of the plurality of grouting ports is covered with an elastic sheath, the grouting core pipe is sleeved with two grout stop sealing plugs at intervals, a plurality of grout outlets are provided between the two grout stop sealing plugs.

A basalt fiber anchoring system with accurate sectioned grouting includes: a plurality of first base plates arranged in an anchoring borehole, where every two first base plates are arranged at an upper end and a lower end of a section to be grouted respectively; a plurality of basalt fiber reinforced plastics (BFRP) penetrating the plurality of first base plates; and a grouting device including a valve pipe and a grouting core pipe, where the valve pipe penetrates all the first base plates, a plurality of grouting ports are defined in a pipe wall of the valve pipe, each of the plurality of grouting ports is covered with an elastic sheath, the grouting core pipe is sleeved with two grout stop sealing plugs at intervals, a plurality of grout outlets are provided between the two grout stop sealing plugs.

A method and apparatus for forming cemented ground support columns is disclosed. Namely, driving mandrels are provided for the efficient construction of incrementally enlarged diameter support columns. For example, the driving mandrel includes a feed tube that has a top portion and an expansion head portion. The expansion head portion further includes an expansion (or compaction) chamber and a flexible tubular egress port. Further, construction methods are provided of using the driving mandrels for the efficient construction of incrementally enlarged diameter support columns.

A method and apparatus for forming cemented ground support columns is disclosed. Namely, driving mandrels are provided for the efficient construction of incrementally enlarged diameter support columns. For example, the driving mandrel includes a feed tube that has a top portion and an expansion head portion. The expansion head portion further includes an expansion (or compaction) chamber and a flexible tubular egress port. Further, construction methods are provided of using the driving mandrels for the efficient construction of incrementally enlarged diameter support columns.

A basalt fiber anchoring system with accurate sectioned grouting includes: a plurality of first base plates arranged in an anchoring borehole, where every two first base plates are arranged at an upper end and a lower end of a section to be grouted respectively; a plurality of basalt fiber reinforced plastics (BFRP) penetrating the plurality of first base plates; and a grouting device including a valve pipe and a grouting core pipe, where the valve pipe penetrates all the first base plates, a plurality of grouting ports are defined in a pipe wall of the valve pipe, each of the plurality of grouting ports is covered with an elastic sheath, the grouting core pipe is sleeved with two grout stop sealing plugs at intervals, a plurality of grout outlets are provided between the two grout stop sealing plugs.

A basalt fiber anchoring system with accurate sectioned grouting includes: a plurality of first base plates arranged in an anchoring borehole, where every two first base plates are arranged at an upper end and a lower end of a section to be grouted respectively; a plurality of basalt fiber reinforced plastics (BFRP) penetrating the plurality of first base plates; and a grouting device including a valve pipe and a grouting core pipe, where the valve pipe penetrates all the first base plates, a plurality of grouting ports are defined in a pipe wall of the valve pipe, each of the plurality of grouting ports is covered with an elastic sheath, the grouting core pipe is sleeved with two grout stop sealing plugs at intervals, a plurality of grout outlets are provided between the two grout stop sealing plugs.

The present invention discloses an equal energy deformation composite foundation using microorganism to solidify aggregate and a construction method thereof, the composite foundation comprises a pile body and a cushion layer, wherein the pile body is provided with several piles, the cushion layer is arranged at the top of the pile body, the pile body is connected into an integral structure through the cushion layer, and the pile body and the cushion layer are filled with aggregate solidified by microorganism. The method comprises the following steps: step 1, leveling the site; Step 2, construction preparation; Step 3, the pile driver in place; Step 4, forming a hole by hammering; Step 5, filling aggregate into the hole; Step 6, repeating the work of step 5; Step 7, forming an equal energy deformation compaction pile using microorganism to solidify aggregate; Step 8, moving to the next pile; Step 9, tamping the ground; Step 10, until the cushion is flush with the surface. Beneficial effects: using local materials, turning waste into wealth, being environmental friendly, saving project cost and conforming to the concept of green development.

A concentrically loaded foundation pier system which includes several concentrically stacked steel pipes filled with concrete. The entire pier is installed centrally beneath the footing of the structure. Shims are placed between the top-most pier element and a pier cap which prevents shifting when the soil expands and contracts. The final structure is end-loaded and pressed to the bedrock or other load-bearing strata. An alternative embodiment includes a temporary lifting assembly which can be fastened about the structural pier without need for bolts or other fasteners.

A concentrically loaded foundation pier system which includes several concentrically stacked steel pipes filled with concrete. The entire pier is installed centrally beneath the footing of the structure. Shims are placed between the top-most pier element and a pier cap which prevents shifting when the soil expands and contracts. The final structure is end-loaded and pressed to the bedrock or other load-bearing strata. An alternative embodiment includes a temporary lifting assembly which can be fastened about the structural pier without need for bolts or other fasteners.

The invention relates to a method for producing a component, such as a structural member, free of toe pressure, including the steps of: introducing a soluble material into soil and introducing a component into the soil on the soluble material.