A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Collapsible loess roadbed construction method
The invention relates to the technical field of constructional engineering, and particularly relates to a collapsible loess roadbed construction method, and aims to solve the problems that collapsibleloess is generally in a saturated state and the settlement amount is difficult to control after roadbed construction. The collapsible loess roadbed construction method is technically characterized bycomprising the steps of S1, making construction preparations; S2, carrying out survey and setting out; S3, conducting pile hole positioning; S4, conducting pile sinking construction, specifically, forming a hole by driving a steel pipe with the same diameter as a sinking pile into soil by using a pile driver then pulling the steel pipe out during construction, wherein the sinking pile is a 6% cement soil compaction pile, the pile diameter is 50cm, and the pile length is 6m; S5, conducting backfilling and tamping, specifically, tamping the hole bottom twice before filling, conducting construction after it is ensured that the hole bottom is tamped, adopting a layered backfilling and tamping method for continuous construction, and conducting backfilling and tamping uniformly and orderly to backfill and tamp the filling into the 6% cement soil compaction pile; S6, laying a cement soil cushion layer; and S7, maintaining. In the collapsible loess section roadbed filling process, cement is adopted to replace lime to serve as a quality control auxiliary means.
本申请涉及建筑工程技术领域，具体涉及一种湿陷性黄土路基施工方法，旨在解决湿陷性黄土一般处于饱和状态，路基施工后沉降量控制难度较大的问题，其技术要点在于包括以下步骤：S1、施工准备；S2、测量放样；S3、桩孔定位；S4、沉桩施工：施工时，利用打桩机将与沉桩同直径的钢管打入土中再拔出的方法成孔，所述沉桩为6％水泥土挤密桩，桩径为50cm，桩长为6m；S5、回填夯实：填料前先对孔底夯击2次，确保孔底夯实后再进行施工，并采用分层回填夯实的方法连续施工，回填夯击均匀有序进行，以将填料回填夯实成6％水泥土挤密桩；S6、铺设水泥土垫层；S7、养护。本发明在湿陷性黄土地段路基填筑过程中采用水泥代替石灰作为质量控制辅助手段。
Collapsible loess roadbed construction method
The invention relates to the technical field of constructional engineering, and particularly relates to a collapsible loess roadbed construction method, and aims to solve the problems that collapsibleloess is generally in a saturated state and the settlement amount is difficult to control after roadbed construction. The collapsible loess roadbed construction method is technically characterized bycomprising the steps of S1, making construction preparations; S2, carrying out survey and setting out; S3, conducting pile hole positioning; S4, conducting pile sinking construction, specifically, forming a hole by driving a steel pipe with the same diameter as a sinking pile into soil by using a pile driver then pulling the steel pipe out during construction, wherein the sinking pile is a 6% cement soil compaction pile, the pile diameter is 50cm, and the pile length is 6m; S5, conducting backfilling and tamping, specifically, tamping the hole bottom twice before filling, conducting construction after it is ensured that the hole bottom is tamped, adopting a layered backfilling and tamping method for continuous construction, and conducting backfilling and tamping uniformly and orderly to backfill and tamp the filling into the 6% cement soil compaction pile; S6, laying a cement soil cushion layer; and S7, maintaining. In the collapsible loess section roadbed filling process, cement is adopted to replace lime to serve as a quality control auxiliary means.
本申请涉及建筑工程技术领域，具体涉及一种湿陷性黄土路基施工方法，旨在解决湿陷性黄土一般处于饱和状态，路基施工后沉降量控制难度较大的问题，其技术要点在于包括以下步骤：S1、施工准备；S2、测量放样；S3、桩孔定位；S4、沉桩施工：施工时，利用打桩机将与沉桩同直径的钢管打入土中再拔出的方法成孔，所述沉桩为6％水泥土挤密桩，桩径为50cm，桩长为6m；S5、回填夯实：填料前先对孔底夯击2次，确保孔底夯实后再进行施工，并采用分层回填夯实的方法连续施工，回填夯击均匀有序进行，以将填料回填夯实成6％水泥土挤密桩；S6、铺设水泥土垫层；S7、养护。本发明在湿陷性黄土地段路基填筑过程中采用水泥代替石灰作为质量控制辅助手段。
Collapsible loess roadbed construction method
一种湿陷性黄土路基施工方法
JIE QINGFANG (author) / LIU DAYONG (author) / CAO ZHEN (author) / PENG WENYU (author) / WANG WEI (author)
2020-11-06
Patent
Electronic Resource
Chinese
Compaction equipment for collapsible loess roadbed construction
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