渣土利用已成为盾构绿色施工的关键措施之一,为进一步量化隧道盾构渣土资源化利用的碳减排潜力,通过构建隧道盾构渣土经改良后进行路基填筑的全过程碳排放估算方法,利用季华路西延线过顺德水道隧道工程实际工程数据,对比分析了渣土再利...渣土利用已成为盾构绿色施工的关键措施之一,为进一步量化隧道盾构渣土资源化利用的碳减排潜力,通过构建隧道盾构渣土经改良后进行路基填筑的全过程碳排放估算方法,利用季华路西延线过顺德水道隧道工程实际工程数据,对比分析了渣土再利用与常规堆填处理的碳排放差异,并对渣土利用全过程碳排放进行了敏感性分析。结果表明:渣土利用碳排放主要发生在渣土改良运输阶段,常规填埋处理主要应用于产生阶段;顺德水道过江隧道工程的总排渣量约为65029 m^(3),其中可用来进行渣土改良的排渣量为53162 m^(3),若全部进行填埋处理,则全生命周期的CO_(2)排放量约为1.84×10^(6) kg CO_(2)eq,占用11058 m^(2)的填埋场地;经3%石灰+3%脱硫石膏改良后的渣土CBR值可达到141.4,回弹模量为198.8 MPa,全过程产生的CO_(2)比渣土常规处理产生的CO_(2)增加了8.89×10^(5) kg CO_(2)eq;经3%电石渣+6%粉煤灰改良后的渣土CBR值可达到89.06、回弹模量为158.9 MPa,全过程产生的CO_(2)比渣土常规处理产生的CO_(2)减少了6.44×10^(5) kg CO_(2)eq。展开更多
Furfural residue, an industrial waste, is a kind of strongly acidic organic materials. Its comprehensive utilization in agriculture showed a significant effect on control of soil alkalization, amelioration of solonetz...Furfural residue, an industrial waste, is a kind of strongly acidic organic materials. Its comprehensive utilization in agriculture showed a significant effect on control of soil alkalization, amelioration of solonetz and increase of crop yields. In detail it may adjust pH, depress alkalinity, reduce bulk density and compactness and increase water permeability and retention ability of the soil. Meanwhile agricultural use of furfural residue provided an effective way to avoid its pollution of the soil, Water and air.展开更多
文摘渣土利用已成为盾构绿色施工的关键措施之一,为进一步量化隧道盾构渣土资源化利用的碳减排潜力,通过构建隧道盾构渣土经改良后进行路基填筑的全过程碳排放估算方法,利用季华路西延线过顺德水道隧道工程实际工程数据,对比分析了渣土再利用与常规堆填处理的碳排放差异,并对渣土利用全过程碳排放进行了敏感性分析。结果表明:渣土利用碳排放主要发生在渣土改良运输阶段,常规填埋处理主要应用于产生阶段;顺德水道过江隧道工程的总排渣量约为65029 m^(3),其中可用来进行渣土改良的排渣量为53162 m^(3),若全部进行填埋处理,则全生命周期的CO_(2)排放量约为1.84×10^(6) kg CO_(2)eq,占用11058 m^(2)的填埋场地;经3%石灰+3%脱硫石膏改良后的渣土CBR值可达到141.4,回弹模量为198.8 MPa,全过程产生的CO_(2)比渣土常规处理产生的CO_(2)增加了8.89×10^(5) kg CO_(2)eq;经3%电石渣+6%粉煤灰改良后的渣土CBR值可达到89.06、回弹模量为158.9 MPa,全过程产生的CO_(2)比渣土常规处理产生的CO_(2)减少了6.44×10^(5) kg CO_(2)eq。
文摘Furfural residue, an industrial waste, is a kind of strongly acidic organic materials. Its comprehensive utilization in agriculture showed a significant effect on control of soil alkalization, amelioration of solonetz and increase of crop yields. In detail it may adjust pH, depress alkalinity, reduce bulk density and compactness and increase water permeability and retention ability of the soil. Meanwhile agricultural use of furfural residue provided an effective way to avoid its pollution of the soil, Water and air.
