Trenchless Repairs

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Tags: Civil, Infrastructure, Municipal, Sanitary Systems, Services, Sewer Systems, Trenchless, Trenchless Repairs, Water Systems

Trenchless technology is a type of subsurface construction work that requires few trenches or no continuous trenches. We specialize in performing trenchless repairs of aging infrastructure wherever possible.

Our Methodology and Approach to Trenchless Technologies

Diagnose, Advise & Treat (D.A.T)

D.A.T is a program Infrastruct developed from exploring manhole renewal technologies, researching studies and design practices across the world. The D.A.T. program takes an exploratory understanding of the source of the problem, defines the needs, and seeks the proper treatment. Some rehabilitation techniques are also applied outside the context of rehabilitation, particularly, in maintenance activities or for preventive purposes(e.g. material protection in order to avoid the posterior degradation), usually repair or renovation techniques.

Step 1

A diagnosis of the problem needs to be defined. Understanding the behavior we are trying to resolve. Three behaviors:

1. Structural behavior (requiring an increase of structural capacity).
2. Hydraulic behavior (requiring flow enhancement or infiltration abatement).
3. Environmental behavior (reduction of exfiltration of sewage to adjacent ground).

Step 2

Selection of the appropriate behavior leads to advise; do we repair, renovate or replace? In the following sections, each family of techniques is briefly described including an overview of the main characteristics, conditions of application, advantages and disadvantages, and relevant standards.

1. Repair consists in the rectification of local anomalies (point repair).
2. Renovate consists of in situ manhole repair (placing a pipe within a pipe).
3. Replace involves the construction of a new manhole (excavation).

Step 3

Treat means to select the right technology, the right trade or applicator (private or public) with the history and skills required to complete the project safely, on time and on budget.

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