Expression and Analysis of Uncertainty in Deep Foundation Pit Design Scheme Decision-Making

Table 2

Decision attributes for deep foundation pit support design schemes under the DB general contracting model.

Engineering classification	Overall project	General contracting enterprise factor	Environmental effect	Project factors
	: Construction coordination and overlapping	: Experience in similar projects in contracted enterprises	: Influence of construction on surrounding residents	: Complexity of project technology
	: Application of new materials and technologies	: Construction safety capability of supporting system	: Influence of construction on surrounding buildings and underground equipment	: Project design depth and service requirements
	: Environmental safety around the construction site	: Main equipment advantages of enterprises	: Narrow space	: Expected profit of project
Key influencing factors	: Standardization of economic and technical indicators	: Design capability of contracting enterprises	: Building density and strength	: Project scale
	—	: Construction technical ability	: Climatic and hydrological conditions of the project	: Project duration requirements
	—	: Enterprise governance ability	—	: Construction site convenience conditions
	—	: Financial ability of contracting enterprises	—	—