UNDISTURBED SOIL SAMPLE
मृदा के अझुब्ध नमूने प्राप्त करना
1. By sampling Tube
2. By Chunk Sampling
1. By Sampling Tube
- Purpose :-
Sampling Tube द्वारा मृदा soil का अझुव्ध (undisturbed sample ) नमूना प्राप्त करना undisturbed soil sample कहलाता है |
- Apparatus :-
- हस्त-बरमा (Hand Auger)
- प्रतिदर्श यन्त्र (Sampling tubes)
- जिनका क्षेत्र अनुपात 20 प्रतिशत से कम हो।
- बेलचा (Shovel)करनी
- (Trowel)लकड़ी के बक्से।
- तेजधार वाला चाकू।
- मोमी कागज
- मोम
- Method:-
जिस स्थान से नमूना लेना हो उसे साफ करके उस गहराई तक गड्ढा खोद लो जिस गहराई से नमूना लेना हो। अब प्रतिदर्श को बिना झटका दिए धीरे-धीरे हटाओं। जब वह पूरा घंस जाये तो उसे धीरे-धीरे बाहर निकाल लो। प्रतिदर्श के ऊपर से थोड़ी मृदा हटाकर पिघला कर मोम भर दो। यह अक्षुब्ध नमूना है।
2. By Chunk Sampling:-
- Purpose :-
Chunk Sampling द्वारा मृदा (soil) का अझुव्ध (undisturbed sample ) नमूना प्राप्त करना
- Apparatus :-
- हस्त-बरमा (Hand Auger)
- प्रतिदर्श यन्त्र (Sampling tubes) जिनका क्षेत्र अनुपात 20 प्रतिशत से कम हो।
- बेलचा (Shovel)
- करनी (Trowel)
- लकड़ी के बक्से।
- मोम व मोमी कागज।
- तेजधार वाला चाकू।
- Method:-
- नमूना लिये जाने वाले स्थान को साफ करके इच्छित गहराई तक सावधानीपूर्वक गड्ढा
- इसप्रकार खोदो कि बीच में मृदा का घन, जैसा कि चित्र में दिखाया गया है, बच जाये।
- लकड़ी के बक्से को उस पर रखकर मृदा घन के चारों और मोम पिघला कर भर दो।
- तेज धार के चाकू से इस मृदा नमूने को नीचेसे काट कर अलग कर लो।
- पिघला कर नीचे वाली सतह पर भी मोम डाल दो तथा ढक्कन बन्द कर दो।
- यह क्षुब्ध नमूना है।
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