Auto Level ka A to Z practical guide

1. Auto Level Setup (The Basics)

Sabse pehle machine ko set karna seekhein, isme speed bahut matter karti hai.

  1. Tripod Stand: Isko chest level tak kholiye aur legs ko mitti mein tight kar dijiye. Top plate bilkul horizontal honi chahiye.

  2. Mounting: Machine ko stand par rakhein aur niche se screw tight karein.

  3. Leveling (Bubble): 3 leveling screws hote hain.

    • Do screws ko ek saath 'Inward' ya 'Outward' ghumayein jab tak bubble beech mein na aa jaye.

    • Phir teesre screw se usko center point par laayein.

  4. Parallax Removal: Eye-piece ko ghumayein taaki cross-hairs (kaali lines) saaf dikhein aur focusing knob se staff (scale) ko clear karein.





2. Field Work: Leveling Process

Site par kaam karne ke liye aapko do cheezein chahiye: Auto Level aur Staff (Scale).

Step 1: Bench Mark (BM) Fix Karna

Har site par ek permanent point hota hai jiski height (RL - Reduced Level) humein pata hoti hai. Maan lijiye Govt. ne road ka level diya hai 100.000 m.

Step 2: Height of Instrument (HI) Nikalna

  1. Staff ko BM par rakhein. Machine se reading lein. Isse Back Sight (BS) kehte hain.

  2. Formula:

    HI = RL + BS

    • Example: 100.000 (RL) + 1.500 (BS) = 101.500 m (HI)

Step 3: Site ke Baaki Points Lena

Ab jahan-jahan level check karna hai, wahan staff rakhein. Isse Intermediate Sight (IS) ya Fore Sight (FS) kehte hain.

  • Formula for New RL: RL = HI - Reading

3. Drawing Mark Karna (On-Site)

Drawing par levels mark karne ke liye:

  1. Grid System: Poori site ko 5m * 5m ya 10m * 10m ke boxes mein baantein.

  2. Marking: Har junction (point) par level lein aur usse drawing par likhein.

  3. Transferring Level: Agar foundation ke liye 2 meter niche jana hai, toh:

    • Target RL = Road Level - 2.000m.

    • Staff par kya reading aani chahiye? HI - Target RL.

    • Labor ko tab tak khodne ko kahein jab tak staff par wo reading na aa jaye.

4. Survey Report Kaise Banayein (Format)

Govt. aur Private dono jagah ye format (Level Book) chalta hai:

StationBS (Back)IS (Inter)FS (Fore)HI (H. Inst)RL (Red. Level)Remarks
BM-11.500--101.500100.000Main Road
P1-1.250--100.250Site Corner
P2--1.800-99.700Puddle Area

Verification Rule (Arithmetical Check):

\sum BS - \sum FS = Last RL - First RL

Agar ye match karta hai, toh aapka survey sahi hai.

5. Report Reading & Submission

  • For Private Client: Unhe Contour Map ya Section Drawing banakar dein. Isse unhe pata chalega ki mitti bharwani hai (Filling) ya hatwani hai (Cutting).

  • For Govt. Work: Wo aapse MB (Measurement Book) entry maangenge. Aapko "Before Construction" aur "After Construction" ke levels dene honge taaki mitti ka volume (Quantity = Area * Avg. Depth) nikala ja sake.

Comments

Post a Comment