Trenchless in San Diego

Article Abstract:

The microtunneling technique is adopted in constructing pipelines for the Middletown Trunk Sewer in San Diego, CA. Remote-controlled boring equipment is applied in the installation of pipelines in microtunneling. Some factors must be considered in the designing of microtunneling project namely soil conditions, pipe materials, size of pipe, length of pipeline and grade, environmental constraints and social impacts. The microtunneling technique reduces the social costs associated with open-trench urban tunneling although the direct cost of this technique is much higher.

Sewer systems, Waste management, San Diego, California

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Regal crossing

Article Abstract:

This article describes the Rama VIII Bridge across the Chao Phraya River between Bangkok and Thon Buri. It is an asymmetrical cable-stayed bridge with a single inverted-y tower and gold-colored stays arranged in both single and double planes. Constructed using cantilevers, the bridge's 160 meter tall inverted-Y tower is founded on bored concrete piles.

Analysis, Brief Article, Bridges, Bridges (Structures), Architectural design, Towers, Towers (Structures), The Rama VIII Bridge

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Rethinking Bangkok's wastewater strategy

Article Abstract:

The article discusses designing and planning of the wastewater collection and treatment in order to modernize the infrastructure redevelopment in Bangkok, Thailand. The city's residential and industrial wastewater passes through septic tanks prior to meeting a network of natural and constructed waterways and finally into the river.

Environmental aspects, Inland water pollution, Waterways, Sewage disposal, Septic tanks, Sewage disposal in rivers, lakes, etc., Septic systems

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