摘要:
A method for waterproofing below-grade structures includes at least one step of injecting at least one compound adjacent to the surface that is directed toward the outside of a region of soil arranged adjacent to a below-grade structure to be waterproofed. The method further includes at least one step of measuring the electrical resistivity of the at least one region of soil subjected to the injection step. The at least one measurement step is adapted to detect the portions of the region of soil that are affected by the injection of the at least one compound.
摘要:
The invention relates to cement compositions containing a metal silicide such as an alkali metal silicide or an alkaline earth metal silicide. Upon mixing with water, the metal silicide reacts to generate hydrogen gas, a silicate, and heat—each of which is advantageous for the large variety of uses to which cements are put. The invention relates to a foamable cement composition comprising about 99.999 wt % to about 98.5 wt % of a cement, and about 0.001 wt % to about 1.5 wt % of a metal silicide or a mixture of metal silicides. Concretes and grouts containing the cement composition are also disclosed. Other embodiments provide methods for forming cement structures, including in subterranean formations and wells.
摘要:
There is disclosed a process for making a foundation system for a platform. In an embodiment, the process includes obtaining design data relating to load and soil characteristics; performing modal tests on a pile member installed in soil to determine natural frequency of the pile member; performing vibration tests on a pile member to determine stiffness; forming a model of using data obtained; testing, in silico, how the model responds to frequencies in a range of the equipment; adjusting, in silico, the model to satisfy design criteria; forming, in silico, a plan of a foundation system based on the adjusted model; installing the foundation system based on the plan; performing vibration tests on the installed foundation system, and measuring vibration levels; and adjusting the foundation system to avoid resonance at a natural frequency by one of stiffen vibrations or dampen vibrations. Other embodiments are also disclosed.
摘要:
Among the various aspects of the present disclosure is the provision of a methods and compositions for the installation and formation of roads and construction materials. The use of base materials and stabilizing agent provide affordable roads and construction materials.
摘要:
Method and arrangement for supporting a structure. Beneath the structure there is arranged a cohesion structure, which transfers the structure load through shaft adhesion to surrounding ground. The cohesion structure includes an expansion element having a wall of flexible material, inside which there is injected along an injecting pipe unreacted polymer, which reacts in the expansion element. The expansion element with the reacted polymer therein constitutes the cohesion pillar. The polymer is water absorbing material and the wall of the expansion element is of water-permeable material, whereby the cohesion pillar is arranged to absorb water from the surrounding ground so as to improve the adhesion between the expansion element and the surrounding ground.
摘要:
A granular stone column drill which includes a first drill, a second drill and a displacement device, where—the first drill includes a tube within which the second drill at least partially, co-axially, lies; —the second drill includes a drill flight and first terminal end; —the displacement device includes a displacement unit and at least one guidance means; —the displacement unit includes a guide channel and an exposed wall such that the guide channel extends into the exposed wall; —the exposed wall lies approximately parallel to a centreline of the second drill; and—the at least one guidance means are located within the guide channel; such that the guide channel is a continuous circumferential channel that follows a wave like path, and either the at least one guidance means or the displacement unit is releasably or permanently attached to the second drill.
摘要:
Methods for reducing or preventing topsoil erosion with hydrogels are described. Upon treatment, a plot of soil may exhibit improved water retention capacity, reduced topsoil erosion and improved aeration properties for plant growth.
摘要:
The present invention relates to a mass based on calibrated sand and elastic binder, and relates to the field of the industry of construction, more precisely dredging works, and coastline protection and/or sand movements. The present invention relates to a construction material based on calibrated sand and elastic binder which includes, for a plaque 50 cm in width, 75 cm in length and 1.5 cm thick, the following components: between 5000 g to 6500 g of calibrated sand, between 200 g to 360 g of silicone and between 0.4 l to 0.6 l turpentine. The invention refers also to a process for obtaining the above-mentioned material, including the following steps: the sand is blended with the mixture of silicone, liquefied and/or diluted with turpentine, the mixture is introduced in the desired mold for the intended shape, and, through the use of vibration and compaction of the mold the desired consistency is obtained.
摘要:
The invention relates to cement compositions containing a metal silicide such as an alkali metal silicide or an alkaline earth metal silicide. Upon mixing with water, the metal silicide reacts to generate hydrogen gas, a silicate, and heat—each of which is advantageous for the large variety of uses to which cements are put. The invention relates to a foamable cement composition comprising about 99.999 wt % to about 98.5 wt % of a cement, and about 0.001 wt % to about 1.5 wt % of a metal silicide or a mixture of metal silicides. Concretes and grouts containing the cement composition are also disclosed. Other embodiments provide methods for forming cement structures, including in subterranean formations and wells.