The paper discusses two types of hydraulic structures: a) Hydraulic canals and penstocks. They are sensitive structures which typically do not tolerate ground displacements. Two cases are described: the Izbor canal and the Pampaneira penstock. A free water surface tunnel in the Izbor canal, was badly deformed by a landslide induced by a distant road excavation performed at a lower elevation. The Pampaneira penstock has survival 60 years of slow creep of a large ancient landslide. In both cases the proposed action to maintain both structures in operation involved a joint consideration of the landslide motions and an analysis of structural modifications and landslide-structure interaction. In both cases, the climate variability was present in the adopted solutions. b) Dams and the associated reservoirs. Dams generate a profound modification of river valleys because of the unloading effect of excavations and the modification of hydrogeologic conditions of extensive areas affected by the reservoir. The dam projects analyzed (La Breña II, Rules, Arenós and Yesa) provide an overview of case-specific situations which required also specific solutions. They are discussed in the paper. There is, however, a common scenario: the attitude to deal with creeping landslide motions. This point is controversial in practice and, in addition, it poses some fundamental issues in landslide understanding. Critical questions are the acceptable creeping velocity and the expected evolution of a creeping landslide. The cases described illustrate the variety of answers given in practice.

本文讨论了两种类型的水工结构：a) 水力运河和压力管道。它们是敏感结构，通常不能容忍地面位移。描述了两个案例：Izbor 运河和 Pampaneira 压力管道。伊兹博尔运河中的一条自由水面隧道因在较低海拔处进行的远处道路开挖引起的滑坡而严重变形。Pampaneira 压力管道在大型古代滑坡的缓慢蠕变中存活了 60 年。在这两种情况下，维持两个结构运行的拟议行动涉及对滑坡运动的联合考虑以及对结构修改和滑坡-结构相互作用的分析。在这两种情况下，所采用的解决方案中都存在气候变异。b) 大坝和相关的水库。由于开挖的卸荷作用和受水库影响的大面积水文地质条件的改变，大坝对河谷产生了深刻的改变。分析的大坝项目（La Breña II、Rules、Arenós 和 Yesa）概述了需要特定解决方案的特定情况。他们在论文中进行了讨论。然而，有一种常见的情况：处理蠕动滑坡运动的态度。这一点在实践中是有争议的，此外，它在滑坡理解中提出了一些基本问题。关键问题是可接受的蠕动速度和蠕动滑坡的预期演变。所描述的案例说明了实践中给出的各种答案。