Toshkent arxitektura qurilish instituti

ANNOTATION
:
 
Present magistr the dissertation is devoted one of building 
challenges - to use of a way of adredging well at erection of underground 
constructions. Conditions of erection of underground constructions with a 
method dredging wells, technologies and practical values are consecrated. As a 
result of the analysis of some ways of use dredging wells it is considered a 
method of erection of a well in a clay shirt as the greatest reducing friction 
between a well and surrounding soil.

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3 
MUNDARIJA 
Kirish.................................................................................................................... 4 
I-Bob. Yer osti inshootlari va ularni barpo etish sharoitlari 
1.1. Yer osti inshootlarining turlari ..................................................................... 9 
1.2. Yer osti inshootlari qurilishiga oid muhandis-geologik izlanishlar............ 13 
1.3. I – bob xulosalari......................................................................................... 26 
II-Bob. “Pastlashuvchi quduq” usulining mohiyati 
2.1. “Pastlashuvchi quduq” usulining turlari ..................................................... 28 
2.2. Pastlashuvchi quduqdan foydalanish ko’lami............................................. 30 
2.3. Pastlashuvchi quduq qurilmalari va uni barpo etish uchun zarur ashyolar. 33 
2.4. II-bob xulosalari.......................................................................................... 53
III-Bob. “Pastlashuvchi quduq” sirti bo’ylab ishqalanish kuchlarini 
kamaytirish usullari 
3.1. Umumiy ma’lumotlar ................................................................................ 57 
3.2. Quduq sirti bo’ylab ta’sir etuvchi ishqalanish kuchini kamaytirishga
oid tavsiyalar ….…………………………………………………………...…. 57 
3.2.1. Quduq sirtini pog’ona yoki konus shaklida loyihalash………………… 57 
3.2.2. Quduqni bosimli suv yordamida o’rnatish.............................................. 58 
3.2.3. Quduqni siqilgan havo yordamida o’rnatish ………………………...… 60 
3.2.4. Quduq sirtini yopishqoq moddalar yordamida qoplash………………… 61 
3.2.5. Elektr osmos usuli……………………………………………………… 62 
3.2.6. Quduqni loy quyqasi ichiga o’rnatish……………………………...…… 63 
3.3. III-bob xulosalari......................................................................................... 65 
UMUMIY XULOSALAR................................................................................. 67 
ADABIYOTLAR RO’YHATI.......................................................................... 71