In Australia, when stormwater systems were first introduced over 100 years ago, they were constructed independently of the sewer systems, and they are normally the responsibility of the third level of government, i.e., local government or city councils. Because of the increasing age of these stormwater systems and their worsening performance, there are serious concerns in a significant number o...

The escalating number of aging sewer pipes necessitates an infrastructure asset management approach to achieve efficient budget allocation for maintenance. This study suggests a risk-based prioritization framework pipe inspection considering the predicted condition and criticality economic, social environmental impacts associated with them. results from both models can be used evaluate risk by ...

Ultrasonic guided waves have been extensively applied for non-destructive testing of plate-like structures particularly pipes in past two decades. In this regard, if a structure has a simple geometry, obtained guided waves' signals are easy to explain. However, any small degree of complexity in the geometry such as contacting with other materials may cause an extra amount of complication in the...

Concrete sewer pipes can be deteriorated by sulfuric acid (H2SO4), which is created the oxidation of hydrogen sulfide in presence certain bacteria inside sewers. This process called biocorrosion. In this paper, H2SO4 (i.e., chemical, non-biogenic) was used to study attack on concrete samples. The authors conducted experiments under different flows and concentrations, account for conditions prev...

Sewage systems are an important component of the life support system, which, in particular, determine ecological condition settlement. The durability laid network depends on many factors, one which is their corrosion resistance. number accidents site and necessary repairs also related to this factor. purpose work was study factors that have greatest influence resistance sewer pipelines, with ai...

In Japan, the number of sewer pipes with a useful life 50 years is expected to increase in future, and efficient methods are required maintain them. Various abnormalities occur pipes. particular, displaced joints must be inspected repaired because they major factors resulting road cave-ins. current inspection investigation pipes, surveyors operate closed-circuit television (CCTV) camera while c...

The worldwide current practice of the structural design sewers is based on procedures which usually include effects caused by chemical and biological deterioration. However, in last few decades, many sewer pipes have been designed using reinforced concrete succinctly considered such deterioration promoters. Indeed, knowledge related to processes has become an important issue when forecasting ex...

This study investigates the interplay between stormwater infiltration devices, shallow groundwater and underground structures (sewer pipes building foundations) at neighborhood scale. Considering a hypothetical urban area, different scenarios are designed by varying components taken into account within two soil types. For least permeable soil, interactions with reduce devices (?99 to ?151 mm/y)...

concentric bracing is one of the most common lateral load resistant systems in building frames, and areapplied to many structures due to their manufacturing simplicity and economics. an important deficiency in thebracing members is their irregular hysteretic loops under cyclic loading. in order to overcome this problem, it isadvised to restrain braces against buckling under compression, since b...

Urbanization projects, understood as those supplying basic services for cities, such drinking water, sewers, communication services, power, and lighting, are normally short-term extremely scattered actions, it can be difficult to track their environmental impact. The present article’s main contribution is employ the project budgets of public urbanization work provide an instrument improvement, ...