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首页> 外文期刊>Australian Geomechanics >COMPACTION TRIAL FOR COMPARISON OF IMPACT ROLLING AND CONVENTIONAL ROLLING TECHNIQUES FOR A LARGE EARTHWORKS PROGRAM IN THE PILBARA1
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COMPACTION TRIAL FOR COMPARISON OF IMPACT ROLLING AND CONVENTIONAL ROLLING TECHNIQUES FOR A LARGE EARTHWORKS PROGRAM IN THE PILBARA1

机译：PILBARA1中大型土方工程冲击轧制与常规轧制技术的对比试验

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As part of the development of a project site in the Pilbara, a large earthworks program will take place involving the placement of up to six metres of fill above the current ground level. Prior to commencement of bulk production filling, a compaction trial was carried out at the site to compare the effectiveness of impact rolling compaction techniques with conventional compaction techniques. Two different rollers, a 12 tonne impact roller and a 21 tonne single drum vibratory roller, were applied across two prepared fill pads. Variables considered in the trial included: compactive effort, lift thickness, number of roller passes, and moisture conditioning. Significant geotechnical field and laboratory testing was carried out across the two pads to assess density with depth, prior to compaction and at various stages of compaction. The test methods used included density testing (nuclear density gauge and sand replacement methods) and in situ penetration testing including cone penetration testing (CPT), dynamic cone penetrometcr (DCP) and Perth sand penetrometer (PSP). Settlement monitoring was also carried out prior to and following compaction. This paper presents an overview of the trial methodology and results of the compaction trial in terms of compaction achieved by the impact rolling and conventional methods.
机译：作为在皮尔巴拉（Pilbara）项目工地开发的一部分，将进行一项大型土方工程，其中涉及在当前地面上方放置最多六米的填土。在开始批量生产灌装之前，在现场进行了压实试验，以比较冲击轧制压实技术与常规压实技术的有效性。将两个不同的辊子（12吨的冲击辊和21吨的单鼓振动辊）应用于两个准备好的填充垫上。试验中考虑的变量包括：压实力，提升厚度，辊道次数和湿度调节。在压实之前和压实的各个阶段，对两个垫层进行了重要的岩土工程和实验室测试，以评估密度和深度。所使用的测试方法包括密度测试（核密度计和砂子置换方法）和现场渗透测试，包括锥孔渗透测试（CPT），动态锥孔渗透仪（DCP）和珀斯砂渗透仪（PSP）。在压实之前和之后也进行了沉降监测。本文通过冲击轧制和常规方法在压实方面介绍了试验方法和压实试验的结果。

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