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La resistenza di interfaccia calcestruzzo poroso-terreni a grana fina per il consolidamento di pendii mediante trincee drenanti profonde

2022

Le trincee drenanti profonde rappresentano uno dei metodi più efficaci per la mitigazione del rischio da frana, in pendii con falda idrica. Esse sono realizzate mediante pannelli o pali secanti. Il riempimento è costituito di calcestruzzo poroso o materiale granulare. Se le trincee sono adeguatamente “innestate” nel terreno stabile e il materiale di riempimento ha sufficiente resistenza e rigidezza come il calcestruzzo poroso, si ha ulteriore in-cremento di resistenza a taglio per effetto shear keys, oltre a quello derivante dalla riduzione delle pressioni in-terstiziali. L’incremento di resistenza è dovuto sia alla resistenza all’interfaccia calcestruzzo–terreni sia a quella intrinseca del…

interface shear strengthPervious concreteSettore ICAR/07 - Geotecnicashear keys effect. Pervious concrete for deep trench drains used to stabilise slopes must simultaneously satisfy many requirements namely adequate hydraulic conductiv-ity adequate shear strength a few days after pour-ing capacity to act as a protective filter for soils in which the drain is installed good resistance to clog-ging and adequate residual hydraulic conductivity. The pervious concrete with appropriated mix-design can effectively satisfy all the abovementioned requirements. If the trenches depth is such that they intersect the sliding surface and if the trenches are adequate-ly "socket" in the layers of stable soil there is a fur-ther increase in shear strength due to the shear keys effect. This latter is in addition to the increase in shear strength resulting from the reduction of inter-stitial pressures that remains the principal scope of the draining trenches. Obviously the increase of shear strength due to the shear keys effect occurs if the trenches are filled with material that have enough strength and stiffness such as the porous concrete. In this case the beneficial effects of the draining trenches on stability are also due to the resistance at the concrete interface of the trench - soils and to the intrinsic resistance of the concrete at the area of the trench intersected by the sliding surface taken into consideration.The increase in resistance due to the shear keys effect can be very significant in relation to the thickness and interspace of the trenches. Results reported in the paper demonstrated that the interface fine grained soil-pervious concrete is higher than the residual shear strength of the soil.
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Party autonomy regarding jurisdiction under the property regimes regulations

2021

The main accomplishment of the Property Regimes Regulations lies in their bringing more coherence into the cross-border family law adjudication. In the field of international jurisdiction, they strive to align the competence in couples? patrimony disputes to that in succession and in separation proceedings, or else to align the competence of the courts to the applicable law. These tendencies are clearly visible in the Regulations? provisions on choice of court agreements. Namely, the Regulations allow for such agreements, but severely limit parties? choice and the possible effects of these clauses. When succession or separation proceedings are pending, it is often only possible to institute…

party autonomy.registered couples? propertyit is often only possible to institute patrimonial disputes at the same court as the said proceedings. When proceedings concerning matrimonial or registered partners? property are initiated without previously pending succession or divorce proceedingshoweveror else to align the competence of the courts to the applicable law. These tendencies are clearly visible in the Regulations? provisions on choice of court agreements. Namelyanalogy with other EU regulations and the CJEU case-law can be of help. The critical eye of the doctrine isrégimen económico-matrimonialRegulation 1104/2016mainly cast on the unpredictable fate of the choice of court agreements under the Regulations. The paper analyses the complex regulation of the choice-ofcourt agreements in the Property Regimes Regulationsautonomía de parte. 274 291draws attention to open questions and provides possible answers. Choice-of-court agreementjurisdictionmatrimonial propertybut severely limit parties? choice and the possible effects of these clauses. When succession or separation proceedings are pendingthey strive to align the competence in couples? patrimony disputes to that in succession and in separation proceedings:CIENCIAS JURÍDICAS [UNESCO]parties can avail themselves of a fairly limited list of options to choose a court from. The Regulations leave several questions regarding choice of court agreements unanswered. Oftenjurisdicciónthe Regulations allow for such agreementsAcuerdo de elección del fororégimen de parejas registradasor else when the necessary consent to the joinder is not given2386-4567 22661 Actualidad jurídica iberoamericana 587897 2021 15 8113562 Party autonomy regarding jurisdiction under the property regimes regulations Kramberger ?kerlJerca The main accomplishment of the Property Regimes Regulations lies in their bringing more coherence into the cross-border family law adjudication. In the field of international jurisdictionReglamento 1103/2016UNESCO::CIENCIAS JURÍDICASRegulation 1103/2016Reglamento 1104/2016
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