TxDOT Research Library - TxDOT Research Project

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A Field Guide for Reconfiguration of MSE Reinforcement around Obstructions

What Was the Need?

TxDOT Research Project 0-6493, "Pullout Resistance of Mechanically Stabilized Earth Reinforcements in Backfills Typically Used in Texas," involved a comprehensive and detailed review of pullout resistance of backfill reinforcement used in mechanically stabilized earth (MSE) walls constructed in Texas. New reinforcement pullout resistance factors were developed for conditions representative of TxDOT construction and researchers evaluated the impact on their use in wall design. Data obtained from tests conducted on obstruction details were used to identify optimum reinforcement configurations to address commonly encountered obstruction situations. Based on these findings, guidelines needed to be developed for implementation of reinforcement details around obstructions and the guidelines needed to be widely available to TxDOT engineers.

What's the Solution?

The field guide produced by this implementation project provides guidelines for reconfiguration of earth reinforcements to avoid obstructions found within the reinforced fill during permanent Mechanically Stabilized Earth (MSE) wall construction. The guidebook is intended to assist Texas Department of Transportation (TxDOT) design engineers, consultants, MSE wall suppliers, contractors, and TxDOT field inspectors when selecting alternative reinforcement configurations to resolve conflicts between design reinforcement layouts and obstructions.

Project Number

5-6493-01

Status

Completed

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