Response to floor demolition work due to underground piping renovation and significant reduction of construction period! (Certain high school)
【Case Study of Adoption at a Certain University (Kanagawa Prefecture)】 (1) Requirements Renovation of the men's restroom on the first floor. (2) Specific Reasons for Hindrance to Requirements There is no underfloor pit, and all existing piping is laid in the ground, necessitating floor demolition work. Additionally, the renovation is desired during the summer vacation, but due to school events, the actual construction period is limited. (3) Specific Design Adopted an SVD system, with toilets and urinals using lining booths for above-floor drainage. ▼ Vacuum Unit - Decision on System Since it is a school, the restroom will be used intensively during breaks. Given the high frequency of use, a continuous suction type "C-2 model (drainage capacity 80L/min)" was adopted. - Decision on Installation Location Installed close to the outdoor drainage manhole and surrounded by a safety net fence. ▼ Vacuum Piping - Decision on Laying Route Planned with exposed piping in the ceiling area of the first floor. - Consideration of Vacuum Tube Extracted from the top of the vacuum piping after the vacuum drainage valve. ▼ Detection Manhole - Decision on Installation Location Divided into two zones for suction, with four sets of toilets and other areas. - Consideration of Capacity The toilet side is 450×450×400H (suction volume approximately 36.5L), and the urinal side is 500×450×310H (suction volume approximately 16L).
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As a vacuum collection tank for the Silent Vacuum Drainage System, we have prototyped five types. The continuous suction type systems are: - "1500 type (C-1)" which has two vacuum collection tanks, each independently constructing a system and performing automatic alternating operation. - "800 type (C-2)" which performs suction in the auxiliary collection tank while the main collection tank is discharging. - "80-special type (C-3)" which installs the collection tanks vertically, with the lower tank discharging while the upper tank performs suction. The non-continuous suction type systems are: - "750 type (I-1)" which stores a drainage collection volume considering a margin when the drainage load can be predicted and the usage time is limited, forcibly discharging the stored drainage at a certain time to prepare for suction the next day. - "250 type (I-2)" which is a flow-type system. In November 2018, we established the Silent Vacuum Drainage System Consortium to focus on education and public relations.
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Adoption Cases - A certain high school... adopted the "Model 800 (C-2)." They want to renovate the men's restroom on the first floor. - A certain train station... adopted the "Model 750 (I-2)." They want to manage the drainage from the station office, platform shop, and restaurant, but there were no drainage pipes nearby. - Inside a certain train station... adopted the "Model 750 (I-2)." They want to remove the individual treatment septic tanks that handle wastewater from two facilities within the station and discharge directly into the public sewer system. Additionally, there are many other achievements.
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GS Corporation has been walking through the Showa, Heisei, and Reiwa eras for over 50 years as a position of "creation," continuously honing our skills and developing and promoting new products that contribute to the global environment and living conditions. We provide technologies such as SI-type pigeon loft unit technology to improve construction productivity, specialized drainage joint technology for high-rise residential buildings, inspection technology to assess the long-term quality of housing, and next-generation drainage system technology for utilizing stock buildings, thereby creating new added value that meets the needs of the times for many years. Amid the diversifying changes of the era, we aim to leverage the long-standing achievements that GS Corporation has built up as a foundation to develop and promote equipment parts utilizing i-construction technology, taking a new step toward the next era.