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A platform for research: civil engineering, architecture and urbanism
Winter construction method for dam core wall seepage-proofing soil material of soil core wall rock-fill dam in short-time frozen soil region
The invention provides a winter construction method for a dam core wall anti-seepage soil material of a soil core wall rock-fill dam in a short-time permafrost region, which comprises the following steps: S1, setting a meteorological standard for entering a winter construction period, and dividing three construction periods according to the meteorological standard; s2, construction control is conducted on all working procedures for preparing the dam winter core wall anti-seepage soil material, and the working procedures mainly comprise the mining construction procedure, the transportation construction procedure, the blending construction procedure and the preparation construction procedure; s3, according to the construction period, dam body anti-seepage soil filling construction in winter is controlled, the construction mainly comprises normal construction measures of contact clay filling construction and gravelly soil filling construction in winter, and the normal construction measures in winter comprise normal construction measures in the first-stage shallow freezing period and the third-stage shallow freezing period, normal construction measures in the second-stage deep freezing period and long-time non-construction measures; and S4, sampling the anti-seepage soil material before construction, and carrying out an in-situ penetration test. The problems of high construction difficulty, waste of a large amount of manpower and material resources and low paving efficiency of heat preservation measures in winter are solved; prevention and control measures of the system are clear, prevention and control indexes are quantified, and a prevention and control system is formed.
本发明提供了短时冻土区土心墙堆石坝坝心墙防渗土料冬季施工方法，S1、设定进入冬季施工时段的气象标准，根据气象标准划分出三个施工时段；S2、对大坝冬季心墙防渗土料制备的各工序进行施工的把控，主要包括开采、运输、掺合和备存施工工序；S3、根据施工时段对冬季坝体防渗土料填筑施工进行把控，主要包括接触黏土填筑施工和砾石土填筑施工在冬季正常施工措施，冬季正常施工措施包括一、三阶段浅冻期正常施工措施、二阶段深冻期正常施工措施以及长时间不施工措施；S4、在施工前对防渗土料进行取样进行原位渗透试验。解决了冬季保温措施施工作业难度大以及浪费大量人力、物力和铺筑效率；具有明确系统的防控措施，量化防控指标，形成防控体系。
Winter construction method for dam core wall seepage-proofing soil material of soil core wall rock-fill dam in short-time frozen soil region
The invention provides a winter construction method for a dam core wall anti-seepage soil material of a soil core wall rock-fill dam in a short-time permafrost region, which comprises the following steps: S1, setting a meteorological standard for entering a winter construction period, and dividing three construction periods according to the meteorological standard; s2, construction control is conducted on all working procedures for preparing the dam winter core wall anti-seepage soil material, and the working procedures mainly comprise the mining construction procedure, the transportation construction procedure, the blending construction procedure and the preparation construction procedure; s3, according to the construction period, dam body anti-seepage soil filling construction in winter is controlled, the construction mainly comprises normal construction measures of contact clay filling construction and gravelly soil filling construction in winter, and the normal construction measures in winter comprise normal construction measures in the first-stage shallow freezing period and the third-stage shallow freezing period, normal construction measures in the second-stage deep freezing period and long-time non-construction measures; and S4, sampling the anti-seepage soil material before construction, and carrying out an in-situ penetration test. The problems of high construction difficulty, waste of a large amount of manpower and material resources and low paving efficiency of heat preservation measures in winter are solved; prevention and control measures of the system are clear, prevention and control indexes are quantified, and a prevention and control system is formed.
本发明提供了短时冻土区土心墙堆石坝坝心墙防渗土料冬季施工方法，S1、设定进入冬季施工时段的气象标准，根据气象标准划分出三个施工时段；S2、对大坝冬季心墙防渗土料制备的各工序进行施工的把控，主要包括开采、运输、掺合和备存施工工序；S3、根据施工时段对冬季坝体防渗土料填筑施工进行把控，主要包括接触黏土填筑施工和砾石土填筑施工在冬季正常施工措施，冬季正常施工措施包括一、三阶段浅冻期正常施工措施、二阶段深冻期正常施工措施以及长时间不施工措施；S4、在施工前对防渗土料进行取样进行原位渗透试验。解决了冬季保温措施施工作业难度大以及浪费大量人力、物力和铺筑效率；具有明确系统的防控措施，量化防控指标，形成防控体系。
Winter construction method for dam core wall seepage-proofing soil material of soil core wall rock-fill dam in short-time frozen soil region
短时冻土区土心墙堆石坝坝心墙防渗土料冬季施工方法
JIN WEI (author) / ZHU XIANWEN (author) / JIANG YUANYUAN (author) / YANG LINGYUN (author)
2024-01-16
Patent
Electronic Resource
Chinese
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