00641436

Component

http://onlinepubs.trb.org...trr/1993/1406/1406-007.pdf

https://scholar.google.co...pley&publication_year=1993

Soil-mixing technique has many applications and is gaining popularity in the construction industry. An experience wherein a braced deep-soil-mixing (DSM) wall 18.3 m (60 ft) deep was used for an 11.3-m excavation 11.3 m (37 ft) deep under difficult subsurface conditions is presented. Reinforcing beams were installed inside the overlapping DSM columns, which made up a continuous retaining wall. Two levels of bracing struts at depths of 3 and 7.6 m (10 and 25 ft) were used for the complete excavation. Preconstruction prediction of the wall deflection was obtained using a beam-column computer solution, BMCOL76. Soil-structure interaction was modeled by specific nonlinear soil resistance curves. The stiffness of the composite wall was appropriately modeled on the basis of the properties of the soil-grout mixture. The measured behavior of the wall was compared with the preconstruction prediction.

This paper appears in Transportation Research Record No. 1406, Construction Robotics and Automation, and Foundations Engineering. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01403255

English

p. 41-49

1993

Transportation Research Record

0309055539

Figures (8) ; References (17) ; Tables (2)

Alternatives analysis; Bracing; Computer models; Deflection; Excavation; Excavations; Forecasting; Measurement; Retaining walls; Soil structure interaction; Stiffness; Struts

Construction; Geotechnology; Highways; I42: Soil Mechanics; I51: Earthworks and Soil Drainage

TRIS, TRB

Jan 25 1994 12:00AM

• APPLICABILITY OF RESILIENT CONSTITUTIVE MODELS OF GRANULAR MATERIAL FOR UNBOUND BASE LAYERS
• COLORADO'S KNOWLEDGE SYSTEM FOR RETAINING WALL SELECTION
• COSTS AND BENEFITS OF AUTOMATED ROAD MAINTENANCE
• DEFORMATION CHARACTERISTICS OF SUBGRADE SOILS IN KUWAIT
• DISPERSIVE CLAY EMBANKMENT EROSION: A CASE HISTORY
• EFFECTS OF COMPACTOR FOOTPRINTS ON THE RESPONSE OF SUBGRADE SOIL
• EXPERT SYSTEM FOR DRILLED SHAFT CONSTRUCTION
• FIELD AND LABORATORY EVALUATION OF THE MECHANICAL BEHAVIOR OF UNBOUND GRANULAR MATERIALS IN PAVEMENTS
• GEOTECHNICAL CHARACTERISTICS OF SALT-BEARING SOILS IN KUWAIT
• INTERFERENCE EFFECTS BETWEEN TWO SURFACE FOOTINGS ON LAYERED SOIL
• METHODOLOGY FOR RESILIENT MODULUS TESTING OF COHESIONLESS SUBGRADES
• SIMPLIFIED DIRECT CALCULATION OF SUBGRADE MODULUS FROM NONDESTRUCTIVE PAVEMENT DEFLECTION TESTING
• STRESS STATE CONSIDERATIONS FOR RESILIENT MODULUS TESTING OF PAVEMENT SUBGRADE
• TECHNICAL AND ECONOMIC FEASIBILITY OF AUTOMATED REINFORCEMENT BAR FASTENING ON BRIDGE DECKS
• TOWARD AN ADAPTIVE CONTROL MODEL FOR ROBOTIC BACKHOE EXCAVATION
• VERIFYING KNEADING RESILIENT MODULUS OF SOILS WITH BACKCALCULATED VALUES