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A platform for research: civil engineering, architecture and urbanism
Construction method for expansive soil ash mixing improvement
The invention discloses a construction method for expansive soil ash mixing improvement, and relates to the technical field of civil engineering. The construction method aims at solving the problems that in the prior art, repeated uniform mixing is needed during construction, the period is long, labor hours are consumed, grasping is not easy, and potential quality hazards are likely to occur. According to the technical scheme, the construction method comprises the steps that S1, expansive soil and lime are taken; S2, 3%-6% of lime is uniformly mixed with the mixture to obtain mixed soil; S3-S6, the improved expansive soil is prepared from the mixed soil; S7, operation sections are divided, the length of each section is 100-200 m, and a base is flattened and rolled; S8, layered filling is conducted according to a cross section full-width longitudinal horizontal layered filling compaction method, the loose paving thickness of filling ranges from 30-60 cm, then a bulldozer is used for primary leveling, a road roller is used for static pressure or weak vibration once, a land leveler is used for fine leveling, and it is guaranteed that a working face is free of local concave-convex parts; and S9, watering and airing are conducted, the layering thickness and flatness of the filling layer should be checked, and rolling compaction can be conducted after it is confirmed that the layer thickness and flatness meet the requirements.
本申请公开了一种膨胀土掺灰改良的施工方法，涉及土木工程技术领域，旨在解决相关技术中施工时需要反复拌和均匀，周期长，耗工时，且不易把握，容易出现质量隐患的问题，其技术要点在于S1、取膨胀土和石灰；S2、将3‑6％石灰与之进行混合匀匀，得到混合土；S3‑S6、通过混合土制得改良膨胀土；S7、划分作业区段，区段长度在100‑200m之间，并对基底进行平整、碾压；S8、按横断面全宽纵向水平分层填筑压实方法进行分层填筑，填筑的松铺厚度在30‑60cm之间，随之使用推土机进行初平，然后用压路机进行静压或弱振一遍，再用平地机进行精平，确保作业面无局部凹凸；S9、洒水晾晒，并对填筑层的分层厚度和平整度应进行检查，确认层厚和平整度符合要求后方能进行碾压夯实。
Construction method for expansive soil ash mixing improvement
The invention discloses a construction method for expansive soil ash mixing improvement, and relates to the technical field of civil engineering. The construction method aims at solving the problems that in the prior art, repeated uniform mixing is needed during construction, the period is long, labor hours are consumed, grasping is not easy, and potential quality hazards are likely to occur. According to the technical scheme, the construction method comprises the steps that S1, expansive soil and lime are taken; S2, 3%-6% of lime is uniformly mixed with the mixture to obtain mixed soil; S3-S6, the improved expansive soil is prepared from the mixed soil; S7, operation sections are divided, the length of each section is 100-200 m, and a base is flattened and rolled; S8, layered filling is conducted according to a cross section full-width longitudinal horizontal layered filling compaction method, the loose paving thickness of filling ranges from 30-60 cm, then a bulldozer is used for primary leveling, a road roller is used for static pressure or weak vibration once, a land leveler is used for fine leveling, and it is guaranteed that a working face is free of local concave-convex parts; and S9, watering and airing are conducted, the layering thickness and flatness of the filling layer should be checked, and rolling compaction can be conducted after it is confirmed that the layer thickness and flatness meet the requirements.
本申请公开了一种膨胀土掺灰改良的施工方法，涉及土木工程技术领域，旨在解决相关技术中施工时需要反复拌和均匀，周期长，耗工时，且不易把握，容易出现质量隐患的问题，其技术要点在于S1、取膨胀土和石灰；S2、将3‑6％石灰与之进行混合匀匀，得到混合土；S3‑S6、通过混合土制得改良膨胀土；S7、划分作业区段，区段长度在100‑200m之间，并对基底进行平整、碾压；S8、按横断面全宽纵向水平分层填筑压实方法进行分层填筑，填筑的松铺厚度在30‑60cm之间，随之使用推土机进行初平，然后用压路机进行静压或弱振一遍，再用平地机进行精平，确保作业面无局部凹凸；S9、洒水晾晒，并对填筑层的分层厚度和平整度应进行检查，确认层厚和平整度符合要求后方能进行碾压夯实。
Construction method for expansive soil ash mixing improvement
膨胀土掺灰改良的施工方法
TAN WENMING (author) / HE YANLONG (author) / ZHONG KAI (author) / ZHAO YONGXU (author) / HAN JICHUN (author)
2021-01-15
Patent
Electronic Resource
Chinese
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