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грунт с доставкой


грунт с доставкой

Сообщение HarlanPam » 15 июн 2014, 20:32

В грунтах, имеющих сцепление, угол естественного откоса изменяется от максимальной величины в верхней части выемки или насыпи до минимальной - в нижней, приближаясь к углу внутреннего трения. В связи с этим откосам высоких насыпей а глубоких выемок целесообразно придавать переменную крутизну с более пологим очертанием внизу. Строительными нормами и правилами установлены значения крутизны откосов для постоянных и временных земляных сооружений в зависимости от их глубины или высоты. Откосы насыпей постоянных сооружений делают более пологими, чем откосы выемок. Более крутые откосы допускаются при устройстве временных сооружений - котлованов и траншей.
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HarlanPam
 
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