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Repairing a Damaged House by Watering Foundations: The MACH Project

机译：通过浇水基础修复受损房屋：MACH项目

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Changes in volume of clayey soils during periods of drought lead to considerable repair costs in France and around the world. Individual dwellings are particularly damaged and, so far, technical repairing solutions used are expensive and can be sometimes traumatic for owners (as they are sometimes undertaken inside the house...). Cerema proposes an innovative approach, which consists in watering the foundation soil of a house in order to neutralize natural shrinkage during critical droughts. A damaged house was chosen and equipped with a device, that recovers rainwater and injects it under the foundations. A soil moisture monitoring was also set in order to follow evolution of soil suction. Works took place in Fall 2016 during a severe drought (in France). Early observations suggests encouraging results with, on one hand, suction reduction as the device was used, and on the other hand, closing of existing wall's cracks. The monitoring is planned for 3 years long.
机译：干旱期间粘土土壤体积的变化导致法国和世界范围内的修复费用相当可观。单个住宅特别受损，到目前为止，所使用的技术修复解决方案价格昂贵，并且有时可能会对业主造成伤害（因为有时是在​​房屋内进行的……）。 Cerema提出了一种创新方法，该方法包括浇灌房屋的基础土壤，以抵消严重干旱期间的自然收缩。选择了一座受损房屋并配备了一个设备，该设备可以回收雨水并将其注入地基下。还设置了土壤湿度监测器，以跟踪土壤吸力的变化。工程于2016年秋季发生在法国严重干旱期间。早期的观察表明，使用该设备时，一方面可以减少吸力，另一方面可以消除现有墙体的裂缝，从而带来令人鼓舞的结果。监控计划进行3年。

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