Cikakken Nuna na Turawa na Ƙarfi a Tsakiyar Dukiyoyi

Ziyarar da Tunguntudu na Zuba na Makarantun Maza a Tsarin Dukata

1. Duka tunguntuza zai kasance RCC. Ziyarar da gudanar da cikin RCC zai shirya kamar IS:456 da kuma grade mafi yawa ta concrete ita ce M-20.

2. Yadda ake yi ziyarar da limit state ya zama da za a iya amfani da shi.

3. Bars na deformed da suka twist da cold ya kai a bar as IS:1786 ko TMT bars za a iya amfani da su don reinforcement.

4. Tunguntuzu suna ziyartuwa saboda critical loading combination na steel structure ko equipment ko superstructure.

5. Idan an bukata protection foundation, za a iya bayyana wajen inganta abubuwa masu ma'ana ga alkaline soil, black cotton soil ko duk soil wanda yake da nasara wajen kawo tunatu.

6. Duk structures suna duba sliding da overturning stability a lokacin da ake gudanar da a lokacin da ake amfani da su saboda various combination of loads.

7. Don duba against overturning, weight of soil vertically above footing zai taka da inverted frustum of pyramid of earth on foundation ba zai iya duba.

8. Base slab of any underground enclosure zai ziyarta maximum ground water table. Minimum factor of safety of 1.5 against bouncy za a daidaita.

9. Tower da equipment foundations suna duba factor of safety of 2.2 for normal condition and 1.65 for short circuit condition against sliding, overturning and pullout.

Bayanan Don Ziyarar da Tunguntudu na Zuba na Makarantun Maza a Tsarin Dukata

Makarantun maza zai iya zama a wurare dabba-dabba. Power System transmission networks suna fadada a duniya. Tsarin dukata na wurare dabba-dabba suna da wahala. Idan an dogara nature of soil, type foundation of transmission towers zai ziyarta da zai gudanar da su. Na amfani da wannan bayanin bayanan don ziyarar da Foundations of transmission towers in different Soil conditions.

SL	Sunan tsari da aka samu	Type of foundation to be adopted
1	In good soil (silty sand mixed with clay)	Normal Dry
2	Where top layer of Black Cotton soil extends upto 50% of the depth with good soil there after.	Partial Black Cotton
3	Where top layer of black cotton soil exceeds 50% and extends upto full depth or is followed by good soil.	Black Cotton
4	Where top layer is good soil upto 50% of the depth but the lower layer is a black cotton soil	Black Cotton
5	Where subsoil water is met at 1.5 ml or more below the ground level in good soil	Wet
6	Good soil locations which are in surface water for long period with water penetration not exceeding 1.0 m below ground level (e.g. paddy fields).	Wet
7	In good soil where subsoil water is encountered between 0.75m and 1.5m depth from ground level.	Partially submerged
8	In good soil where subsoil water is encountered within 0.75m depth from ground level	Fully Submerged
9	Where top layer of normal dry soil extends upto 85% of the depth followed by fissured rock without presence of water.	Dry Fissured Rock
10	Where top layer is lissured rock followed by good soil/sandy soil with/without presence of water	Special foundation
11	Where normal soil/tissured rock extends upto 85% of the depth followed by hard rock	Dry fissured Rock with under cut in Fisured Rock combined with anchor bar for hard rock design
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