Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Premixed solidified soil for backfilling of foundation trench of power transmission tower foundation and preparation method of premixed solidified soil
The invention discloses premixed solidified soil for backfilling a foundation trench of a power transmission tower footing. The premixed solidified soil is prepared from the following raw material components: 80-90% of power transmission tower footing foundation pit excavation soil, 10-20% of a solid waste-based inorganic cementing material, 1-5% of an organic gel toughening agent, 0.5-1% of a dispersing agent and 5-10% of mixing water, the sum of the weight percentages of all the raw material components is 100%. The component of the solid waste-based inorganic cementing material is a mixture of slag and carbide slag; the mass ratio of the slag to the carbide slag is 1/3-1/5; the specific surface area of the solid waste-based inorganic cementing material is 300-500m < 2 >/kg; the organic gel toughening agent is one or a mixture of more of sodium alginate, polyvinyl alcohol and polyethylene glycol; the dispersing agent is one or a mixture of more of sodium hexametaphosphate and sodium polyacrylate. The invention further discloses a corresponding preparation method, the shear strength of the premixed solidified soil is remarkably enhanced, the mechanical property and corrosion resistance of the soil body are improved, the stability of the soil body around the power transmission tower footing in the arid region is improved, the landslide risk is reduced, and then the stability of the tower footing under the action of heavy rainfall and dynamic load is improved.
本发明公开一种用于输电塔基基槽回填的预拌固化土，由如下原料组分组成：80％‑90％输电塔基基坑开挖土、10‑20％固废基无机胶凝材料、1％‑5％有机凝胶增韧剂、0.5％‑1％分散剂和5％‑10％拌合水；所有原料组分的重量百分比之和为100％；固废基无机胶凝材料的成分为矿渣和电石渣的混合物；矿渣和电石渣的质量比为1/3‑1/5；固废基无机胶凝材料的比表面积在300‑500m2/kg之间；有机凝胶增韧剂为海藻酸钠、聚乙烯醇和聚乙二醇的一种或多种的混合物；分散剂为六偏磷酸钠、聚丙烯酸钠中的一种或多种的混合物。还公开了对应的制备方法，预拌固化土抗剪强度显著增强，提升了土体力学性能和耐蚀性，提高了干旱区输电塔基周围土体的稳定性，降低了降低滑坡风险，进而提高了塔基在强降雨和动荷载作用下的稳定性。
Premixed solidified soil for backfilling of foundation trench of power transmission tower foundation and preparation method of premixed solidified soil
The invention discloses premixed solidified soil for backfilling a foundation trench of a power transmission tower footing. The premixed solidified soil is prepared from the following raw material components: 80-90% of power transmission tower footing foundation pit excavation soil, 10-20% of a solid waste-based inorganic cementing material, 1-5% of an organic gel toughening agent, 0.5-1% of a dispersing agent and 5-10% of mixing water, the sum of the weight percentages of all the raw material components is 100%. The component of the solid waste-based inorganic cementing material is a mixture of slag and carbide slag; the mass ratio of the slag to the carbide slag is 1/3-1/5; the specific surface area of the solid waste-based inorganic cementing material is 300-500m < 2 >/kg; the organic gel toughening agent is one or a mixture of more of sodium alginate, polyvinyl alcohol and polyethylene glycol; the dispersing agent is one or a mixture of more of sodium hexametaphosphate and sodium polyacrylate. The invention further discloses a corresponding preparation method, the shear strength of the premixed solidified soil is remarkably enhanced, the mechanical property and corrosion resistance of the soil body are improved, the stability of the soil body around the power transmission tower footing in the arid region is improved, the landslide risk is reduced, and then the stability of the tower footing under the action of heavy rainfall and dynamic load is improved.
本发明公开一种用于输电塔基基槽回填的预拌固化土，由如下原料组分组成：80％‑90％输电塔基基坑开挖土、10‑20％固废基无机胶凝材料、1％‑5％有机凝胶增韧剂、0.5％‑1％分散剂和5％‑10％拌合水；所有原料组分的重量百分比之和为100％；固废基无机胶凝材料的成分为矿渣和电石渣的混合物；矿渣和电石渣的质量比为1/3‑1/5；固废基无机胶凝材料的比表面积在300‑500m2/kg之间；有机凝胶增韧剂为海藻酸钠、聚乙烯醇和聚乙二醇的一种或多种的混合物；分散剂为六偏磷酸钠、聚丙烯酸钠中的一种或多种的混合物。还公开了对应的制备方法，预拌固化土抗剪强度显著增强，提升了土体力学性能和耐蚀性，提高了干旱区输电塔基周围土体的稳定性，降低了降低滑坡风险，进而提高了塔基在强降雨和动荷载作用下的稳定性。
Premixed solidified soil for backfilling of foundation trench of power transmission tower foundation and preparation method of premixed solidified soil
一种用于输电塔基基槽回填的预拌固化土及其制备方法
HONG QIAN (Autor:in) / CHEN XIAOFENG (Autor:in) / QIAN YONG (Autor:in) / WANG YANBING (Autor:in) / LUO XIANG (Autor:in) / HU JIA (Autor:in) / WANG JIN (Autor:in) / XU LIJUAN (Autor:in) / YANG DAN (Autor:in) / SHAO SENNIAN (Autor:in)
27.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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