In construction or renovation, underpinning is the process of strengthening the foundation of an existing building or other structure. Underpinning may be necessary for a variety of reasons:

Mass customization: conceptual underpinnings, opportunities andlimits
The Methodology of Self-Study and Its Theoretical Underpinnings
Exploring the psychological underpinnings of the moral mandate effect: motivated reasoning, group differentiation, or anger?
The Emotional Underpinnings of Responsibility in Global Governance: UNSC Resolution 1325 on Women, Peace, and Security and The Respo...
Construing Benefits from Adversity: Adaptotional Significance and Disposltional Underpinnings
Social protection as social risk management: conceptual underpinnings for the social protection sector strategy paper
DISINHIBITION, INHIBITORY CONTROL, & ENTREPRENEURSHIP: INHIBITORY UNDERPINNINGS OF RISK TAKING, CREATIVITY, PROACTIVITY AND VENTURIN...
Lacey-Haun, C., & Whitehead, T. (2009). Underpinnings of the Nursing Skills Competency Program. Found online on March 5, 2009 at htt...
Global Accounting Convergence and the Potential Adoption of IFRS by the U.S. (Part I): Conceptual Underpinnings and Economic Analysis
Supporting global biodiversity assessment through high-resolution macroecological modelling: Methodological underpinnings of the BIL...