Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Backfill material matched with rock wave impedance and preparation method thereof
The invention discloses a backfill material matched with rock wave impedance and a preparation method thereof.The backfill material is prepared from, by weight, 45-70 parts of Portland cement, 40-189 parts of mineral admixture, 0.1-0.3 part of plastic expanding agent, 5-10 parts of UEA expanding agent, 0.9-3.4 parts of super absorbent resin and 28-54 parts of water, and the mineral admixture is mineral powder or quartz sand or fly ash; and the balance is added with a water reducing agent or a water-retaining agent to enable the saturated water absorption rate to be 180-600 times or above. The super absorbent resin with adjustable size and particle size is doped as an adjusting material, artificially adjustable closed pores are added in the rock backfill material, the effect of adjusting the pore structure is achieved, and the problem that during rock blasting data transmission, due to wave impedance and stress wave propagation laws of the backfill material and different rocks, the pore structure cannot be adjusted is solved. And the received data distortion is caused by mismatching of mechanical properties and the like.
本发明公开了匹配岩石波阻抗的回填材料及其制备方法，包括以下重量份数配比的原料：硅酸盐水泥45‑70份，矿物掺合料40‑189份，塑性膨胀剂0.1‑0.3份，UEA膨胀剂5‑10份，高吸水树脂0.9‑3.4份，水28‑54份，所述矿物掺合料为矿粉，石英砂或者粉煤灰，余量添加减水剂或者保水剂用以使饱和吸水率180‑600倍以上。本发明掺入大小、粒径可调控的高吸水树脂作为调节材料，在岩石回填材料内部增添人为可调控的封闭气孔，达到调控孔结构的效果，解决了在岩石爆破数据传输时，由于回填材料与不同岩石波阻抗、应力波传播规律，力学性能等不匹配而导致所接收的数据失真等问题。
Backfill material matched with rock wave impedance and preparation method thereof
The invention discloses a backfill material matched with rock wave impedance and a preparation method thereof.The backfill material is prepared from, by weight, 45-70 parts of Portland cement, 40-189 parts of mineral admixture, 0.1-0.3 part of plastic expanding agent, 5-10 parts of UEA expanding agent, 0.9-3.4 parts of super absorbent resin and 28-54 parts of water, and the mineral admixture is mineral powder or quartz sand or fly ash; and the balance is added with a water reducing agent or a water-retaining agent to enable the saturated water absorption rate to be 180-600 times or above. The super absorbent resin with adjustable size and particle size is doped as an adjusting material, artificially adjustable closed pores are added in the rock backfill material, the effect of adjusting the pore structure is achieved, and the problem that during rock blasting data transmission, due to wave impedance and stress wave propagation laws of the backfill material and different rocks, the pore structure cannot be adjusted is solved. And the received data distortion is caused by mismatching of mechanical properties and the like.
本发明公开了匹配岩石波阻抗的回填材料及其制备方法，包括以下重量份数配比的原料：硅酸盐水泥45‑70份，矿物掺合料40‑189份，塑性膨胀剂0.1‑0.3份，UEA膨胀剂5‑10份，高吸水树脂0.9‑3.4份，水28‑54份，所述矿物掺合料为矿粉，石英砂或者粉煤灰，余量添加减水剂或者保水剂用以使饱和吸水率180‑600倍以上。本发明掺入大小、粒径可调控的高吸水树脂作为调节材料，在岩石回填材料内部增添人为可调控的封闭气孔，达到调控孔结构的效果，解决了在岩石爆破数据传输时，由于回填材料与不同岩石波阻抗、应力波传播规律，力学性能等不匹配而导致所接收的数据失真等问题。
Backfill material matched with rock wave impedance and preparation method thereof
匹配岩石波阻抗的回填材料及其制备方法
LI GUOXIN (Autor:in) / SONG RUIHUI (Autor:in) / TANG SHIYING (Autor:in) / WANG YUTONG (Autor:in) / NIU MENGDIE (Autor:in)
09.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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