王志良(冶金部建筑研究总院)终结讨论:坝基深层抗滑稳定问题是个十分重要和复杂的技术课题.文献1)提到,“我国已建和正在设计施工的、坝基有软弱夹层的90余座混凝土大坝中,由于坝基中的软弱夹层未能及时发现,以致改变设计、延误工期和作后期加固的约占1/3.因此,迅即有组织地开展这方面的研究工作,实为当务之急”.刘致彬和周述椿同志提出各自的观点并提供宝贵资料,对推动这一问题的研究是有益的,本人表示感谢.以下就涉及到原文三斜法的一些问题,补充一点个人的意见. (一)刚体极限平衡法的适用性 刘同志指出了刚体极限平衡法的某些局限性,并指出今后的方向是更多地采用有限单元计算和地质力学模型试验进行更深入、细致的分析.作者对此并无异议.但应明确,刚体极限平衡法并不排斥有限元分析及模型试验,它们之间的关系应是相辅相成的.刚体极限平衡法在工程初步设计阶段以及对于中型工程是很必要的.这是由于它的概念简明,计算方便,无需 Wang Zhiliang (Construction and Research Institute of the Ministry of Metallurgy) concluded the discussion: The problem of anti-sliding stability in the deep dam foundation is a very important and complex technical issue. Literature 1) mentions that “China has constructed and is constructing more than 90 foundations with weak interlayers. In the concrete dam, because the weak sandwich in the dam foundation was not discovered in time, the design change, the delay period, and the reinforcement in the later period accounted for about 1/3. Therefore, the research work in this area was carried out in an organized and organized manner. “Liu Zhibin and Zhou Shuyi have put forward their own viewpoints and provided valuable information. It is useful to promote the study of this issue. I would like to express my gratitude. The following questions concerning the original three oblique methods are supplemented by some personal opinions.” ) Applicability of the rigid body limit equilibrium method Comrade Liu pointed out some limitations of the rigid body limit equilibrium method, and pointed out that the future direction is to use more finite element calculations and geomechanical model tests for more in-depth and detailed analysis. There is no objection to this, but it should be made clear that the rigid body limit equilibrium method does not exclude finite element analysis and model tests, and the relationship between them should be complementary. Limit equilibrium method in the preliminary design phase of the project and is necessary for medium-sized projects. This is due to its conceptual simplicity, ease of calculation, no