Zamin va poydevorlar loyihalash uchun zarur materiallar

Sayoz poydevorni loyihalash

Sayoz poydevor loyihasiga oid

• Sayoz poydevor loyihasiga oid
• Pog’onaning eng kam balandligi:
• hп=30-35 sm
• Pog’onaning kengligi an=5-15 sm
• Quyidagi nisbatda
• a) R ≤ 1,5 kg/sm2 hП/ау=1,75
• б) R ≥ 1,5 kg/sm2 hП/ау=1,5
• Poydevor balandligi h=30-40 sm (1 pog’onali)
• h – 1,0 m gacha (2 pog’onali)
• h > 1,0 m (3 pog’onali)
• Poydevorning eng kam balandligi:
• Xarsang toshli – 50-60 sm
• Betonli – 40 sm
• Temirbeton - chegaralanmaydi

Tasmasimon bikr poydevorlar hisobi (ℓ=pog/m)

P+G=Q

• P+G=Q
• G=B·H·γ·1
• Q=10R·F=10·R·B. (F=B·1)
• P+BH· γ = 10R·B
• P= 10R·B- B·H·γ
• P=B(10R - H·γ)
• bunda P – inshoot bosimi, R-gruntning hisobiy qarshiligi, γ – grunt zichligi

Sayoz poydevorlarni bikrlikka tekshirish

• Sayoz poydevorlarni bikrlikka tekshirish
• B
• Bmax=в +2htgα'
• bunda: Bmax – chegaraviy kenglik
• tgα' – poydevor bo’ylab bosim tarqalish burchagi:
• Xarsang toshda - tg α' = 0,5
• Xarsang toshli sement qorishmada - tg α' =0,67
• Xarsang tosh betonli poydevor - tg α' = 0,75
• betonli poydevor - tg α' = 1,0