A specific specific gravity composite material slurry for filling and consolidating the annular space of a thousand-meter deep-frozen pipe
A technology of annular space and composite materials, which is applied in the field of freezing method construction in coal mine deep shaft construction, can solve the problems of difficult precise control of specific gravity, unsatisfactory setting time, poor water retention, etc., and achieve good fluidity, adjustable setting time, and good stability Effect
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Embodiment 1
[0018] The specific specific gravity composite material slurry for filling and consolidating the annular space of the kilometer deep frozen pipe in this embodiment is composed of the following components: 350 kg of PC. Organic stabilizer 0.6kg, retarder 2.3kg.
[0019] The specific gravity adjustment material is a mixture of floating beads, limestone powder and barite powder, of which: 50kg of floating beads, 80kg of limestone powder, and 120kg of barite powder. The organic stabilizer is a mixture of polyvinyl alcohol, polyacrylamide, methyl hydroxyethyl cellulose ether and methyl hydroxypropyl cellulose ether, of which: 0.1kg of polyvinyl alcohol, 0.2kg of polyacrylamide, methyl hydroxy Ethyl cellulose ether 0.15kg and methyl hydroxypropyl cellulose ether 0.15kg. The structural reinforcing agent is silica fume. The setting retarder is a mixture of tartaric acid, citric acid, salicylic acid and sucrose, wherein: 0.5 kg of tartaric acid, 0.7 kg of citric acid, 0.4 kg of salic...
Embodiment 2
[0022] The specific specific gravity composite material slurry for filling and consolidating the annular space of the thousand-meter deep freezing pipe in this embodiment is composed of the following components: 350 kg of PC. Organic stabilizer 0.5kg, retarder 2.15kg.
[0023] The specific gravity adjustment material is a mixture of floating beads, limestone powder and barite powder, of which: 45kg of floating beads, 55kg of limestone powder, and 100kg of barite powder. The organic stabilizer is a mixture of carboxymethyl cellulose, hydroxypropyl cellulose, methyl hydroxyethyl cellulose ether and methyl hydroxypropyl cellulose ether, wherein: carboxymethyl cellulose is 0.05kg, hydroxypropyl Cellulose 0.25kg, methyl hydroxyethyl cellulose ether 0.15kg and methyl hydroxypropyl cellulose ether 0.05kg. The structural reinforcing agent is silica fume. The retarder is a mixture of cellulose, sodium phosphate, salicylic acid and sucrose, wherein: 0.15kg of cellulose, 0.5kg of sodiu...
Embodiment 3
[0026] The specific specific gravity composite material slurry for filling and consolidating the annular space of the thousand-meter deep freezing pipe in this embodiment is composed of the following components: 250 kg of PC. Organic stabilizer 0.41kg, retarder 1.65kg.
[0027] The specific gravity adjustment material is a mixture of floating beads, limestone powder and barite powder, of which: 58kg of floating beads, 60kg of limestone powder, and 82kg of barite powder. The organic stabilizer is a mixture of polyvinyl alcohol, polyacrylamide, carboxymethyl cellulose and hydroxypropyl cellulose, of which: polyvinyl alcohol 0.1kg and polyacrylamide 0.14kg, carboxymethyl cellulose 0.08kg, hydroxypropyl cellulose Propyl cellulose 0.09kg. The structural reinforcing agent is silica fume. The retarder is a mixture of cellulose, sodium phosphate, sodium gluconate, tartaric acid and citric acid, of which: cellulose is 0.1kg, sodium phosphate is 0.25kg, sodium gluconate is 0.4kg, tart...
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