Abstract:
Un método para estabilizar un terreno, como por ejemplo, esterilizar una superficie de terreno, que comprende las etapas de depositar una capa de material inerte sobre la superficie del terreno a tratar; aplicar una sustancia estabilizadora fluida sobre la capa de material inerte; y remover la superficie de terreno que incluye la capa de material inerte y la sustancia estabilizadora fluida y levantarla respecto del nivel del suelo donde se aplica de forma simultánea una etapa adicional de aplicar la sustancia estabilizadora fluida, garantizando así una capa de tierra o similar con la sustancia estabilizadora fluida con una profundidad adecuada. Este método se lleva a cabo mediante un conjunto rodante motorizado provisto de un dispositivo estabilizador.
Abstract:
Di Erfindung betrifft eine Rüttleranordnung (1) zur Herstellung von Materialsäulen im Boden, die einen langgestreckten Rüttelkörper (2) mit einer einen Umfang aufweisenden Mantelfläche und wenigstens eine sich wenigstens teilweise um den Umfang des Rüttelkörpers (2) erstreckende Ausragung (3) aufweist. Die Erfindung betrifft außerdem ein Verfahren zur Herstellung einer Materialsäule im Boden unter Verwendung einer solchen Rüttleranordnung.
Abstract:
Device for inserting foreign matters into the soil and/or for compacting the soil, comprising a countersinking unit (22) with a depth vibrator, that is coupled to an articulated arm, in addition to a control device through which the articulated arms (2, 3, 4) can be controlled in such a way that the countersinking unit can be displaced linearly in a predetermined direction along its longitudinal extension.
Abstract:
A self-propelled surplus soil regenerating vehicle of a compact construction capable of subjecting the surplus soil, which occurs during construction work, to a regeneration treatment on a site so that the soil can be recycled, and having a high mobility even on a small job site. Accordingly, a surplus soil treatment unit is provided substantially on a center line of a vehicle body (6), and vehicle units are provided on both sides of the vehicle body. The surplus soil treatment (1) at a rear portion of the vehicle body, a crusher (3) below the surplus soil supply means, an intermediate conveyor (37) below the crusher, a vibrating screen (4) below and at the front side of the intermediate conveyor, a carry-out conveyor (5) below the vibratory sieve, and a soil improving agent silo (21) at one side of the vibrating screen (4) via a feeder (22), which silo is adapted to spray a soil improving agent over the surplus soil. The carry-out conveyor (5) can be stored freely in a lower portion of the vehicle body.
Abstract:
Geopolymers are one type of aluminosilicate materials formed through the polymerization of silicate and aluminate tetrahedrons. Geopolymer is used as a non-calcium-based stabilizer to mix with sulfate-rich soils. The stabilized soils were exposed to deionized water for 7 days until the volume of soil samples reached constant. Volumetric expansion of the sulfate-rich soil samples stabilized with metakaolin based geopolymer was 7 times lower than those stabilized with lime while the mechanical strength of stabilized soil samples were significantly improved.
Abstract:
Beschrieben wird eine Tiefenrüttleranordnung, die aufweist: einen Tiefenrüttler (1) mit einem Rüttlergehäuse (11); wenigstens eine an dem Rüttlergehäuse (11) befestigte und beabstandet zu dem Rüttlergehäuse (11) angeordnete erste Schneidplatte (4).
Abstract:
The invention relates to a method for consolidating soil in a space (10) to be consolidated. In the method, the consolidating agent is fed from a feeding container (9b) into the soil by mixing means (7) arranged in the consolidating agent feeding unit (4). The consolidating agent feeding unit (4) is positioned in connection with the transfer means (1) and the consolidating agent mixing means (7) arranged in the consolidating agent feeding unit (4) are moved by the transfer means (1) optionally at any point in the space (10) to be consolidated in the vertical direction (y), horizontal direction (x) and/or in a perpendicular or essentially perpendicular direction to the plane running through the said vertical direction and horizontal direction. The invention also relates to an arrangement for implementing the method.
Abstract:
Method for the creation of a foundation pile (1), including the operational stages of making a hole (4) in the soil (3) with a development axis and its own cross section, compacting the ground (3) around the hole (4) by enlarging the cross section of the hole (4) itself, and pouring at least one solidifiable filler into the hole (4) and leaving the filler to cure to obtain a column structure defining the foundation pile (1). hi particular, the compacting stage occurs without the removal of material and includes the compression of the ground (3) in outgoing radial directions compared to the development axis of the hole (4).
Abstract:
Composition de liant hydraulique destinée à être utilisée pour former un remblai autocompactant et réexcavable, ladite composition de liant hydraulique comprenant des cendres volantes, du ciment alumineux, et de la chaux hydratée, ladite composition de liant hydraulique étant destinée à être mélangée à une composition de granulat et à de l'eau pour former ledit remblai autocompactant et réexcavable.
Abstract:
A method of modifying geotechnically unsuitable soils (21) at a site (20) so as to render the site (20) capable of bearing a load (30) comprises steps involving soil stabilisation treatment and rolling dynamic compaction (42). A portion (40) of the site (20) is excavated down to a pre-determined depth x . Both the excavated site (40) and the soil excavated therefrom are subjected to soils stabilisation treatments, before the treated excavated soils is backfilled in layers (43), and subjected to both standard compaction (45) and rolling dynamic compaction (42). The result is a raft (32) of modified soils capable of supporting bearing pressures associated with traditional housing foundations (33, 35). The need to drive piles (25) into deep strata (24) with load-bearing capabilities, or to use other costly or environmentally unsound techniques to address the issue of geotechnically unsuitable or contaminated soils is thus avoided. The use of modified soil (32) to backfill the same site (40) from which it was excavated results in major costs savings and reduced environmental impact due to a substantial reduction in the number of lorry movements required, as compared to conventional “dig and dump” techniques.