A method for transforming existing ground of a given site into a more stable foundation ground is provided. The method includes the steps of defining an outlined area about a surface of the existing ground, excavating soil throughout the outlined area to a depth extending through layers of different soil types; conditioning the excavated soil by mixing together layers of different soil types homogeneously, including in some cases soil imported from an external source; returning the conditioned soil to the outlined area to fill the excavated depth, and compacting the conditioned soil returned to the outlined area, thereby forming the stable foundation ground of high structural capacity and low compressibility.

The invention relates to a method of fabricating an element in ground (S), the method comprising: a step of drilling an excavation (T) in the ground; and a step of mixing the ground in place in the excavation in situ with a geopolymer.

Described herein are tools, systems and methods for conditioning, strengthening and/or improving in situ soil geotechnical or agricultural properties while at least temporarily reducing soil density, energy requirements, and tool wear.

Provided is a method for preventing soil erosion in which a nonionic guar and/or a cationic guar is applied on or into the soil. A method for preventing water runoff of a soil in which a nonionic guar and/or a cationic guar is applied on or into the soil is also provided. A treated soil against the soil erosion susceptible to be obtained by the method for preventing soil erosion in which a nonionic guar and/or a cationic guar is applied on or into the soil is also provided.

The invention relates to a method for forming a support wall in the ground from a soil mortar which is made in the ground by mixing soil material and a cement suspension, wherein vertically directed support beams comprising a structural steel are set into the soil mortar in the ground prior to curing, and after curing, soil material is removed along an upper support wall section on at least one side of the support wall, while a lower support wall section continues to be surrounded by soil on both sides. According to the invention, it is provided that a thin-walled sheathing element from concrete is attached to at least one support beam, which extends along an upper support beam section, and that the support beam is set into the soil mortar in such a way that the upper support beam section with the sheathing element from concrete extends along the upper support wall section.

The invention relates to a method of fabricating an element in ground (S), the method comprising: a step of drilling an excavation (T) in the ground; and a step of mixing the ground in place in the excavation in situ with a geopolymer.

This invention relates generally to mixing deep soil with a ground or floating based rig system with a single or multi-axial system. In one example embodiment methods, apparatus, and systems are described for deep soil mixing tools or rigs with a rotary axial design, namely with more than one axial mixing elements and associated structures, such that a purpose may be to provide for ground modification improvement.

The invention relates to a machine (10) for making columns in ground, the machine comprising a carrier (12) having a mast (14) extending along a longitudinal direction; a movable carriage (16) mounted to slide along the mast (14); a ground perforation tool (20) extending along a longitudinal axis parallel to said longitudinal direction and secured to said movable carriage, presenting a top end connected to building material feed means, and a bottom end provided with an orifice (28) for injecting the first building material; a rotary drive system (18) for driving the perforation tool (20) in rotation; and a body (40) extending around the perforation tool (20) so that the perforation tool is suitable for sliding through said body. According to the invention, the machine has a coupling system (60) for coupling together the body (40) and the perforation tool (20) in translation and in rotation.

This invention relates to a method for insulating sub-soil comprising mechanically destructuring the sub-soil, injecting an insulating material into the destructured sub-soil, and mixing the sub-soil and the insulating material. The thermal conductivity of the insulating material is strictly lower than the thermal conductivity of the sub-soil.

The present disclosure provides an eco-friendly high-performance all-solid-waste soil-binding material and a preparation method and use method thereof, and relates to the field of weak soil solidifying agents. The eco-friendly high-performance all-solid-waste soil-binding material includes the following components in parts by weight: a slag powder: 30 parts to 60 parts, a fly ash: 10 parts to 25 parts, a steel-slag powder: 10 parts to 30 parts, an alkaline residue powder: 5 parts to 15 parts, and a lithium-battery solid waste: 5 parts to 15 parts. The implementation of the present disclosure can improve a solidification strength of the soil-binding material, reduce a cost of the soil-binding material, and makes the soil-binding material eco-friendly.