滨海地区淤泥质黏土水泥土搅拌桩施工技术研究
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摘要
针对滨海地区淤泥质黏土特殊地质条件,以滨海某危废填埋场工程为例,使用Geo-Slope软件中的Slope/W模块功能,对防渗沟槽进行稳定性分析,同时有针对性的对水泥土搅拌桩施工工艺技术试验研究,对3种水泥土搅拌桩施工工艺的无侧限抗压强度、不同水泥掺量施工工艺进行对比分析。研究结果表明:水泥搅拌桩能够对滨海地区淤泥质黏土地基起到很好的支护加固作用,并且三轴搅拌桩机四搅四喷工艺试验强度为最佳,该工艺在30%水泥掺入量情况下能够较充分的进行土体混合搅拌,达到试验设计强度要求。
Aiming at the special geological conditions of muddy clay in coastal area,taking a hazardous waste landfill project in Lianyungang as an example. Using the module of Slope/W module in Geo-Slope software,the stability analysis of the anti sewer groove is carried out,and meanwhile,the experimental research on the construction technology of cement soil mixed piles is tested. The construction technology of unconfined compressive strength and cement content of three kinds of cement soil mixed piles are compared and analyzed. The results show that the cement mixed piles can play a favorable supporting and reinforcing role for the coastal clay mucky soil,and four mixed four spray test strength of the three shaft mixed pile machine was best,the process in the content of 30% cement content can be more fully mixed soil mixing,to achieve the test design strength requirements.
Aiming at the special geological conditions of muddy clay in coastal area,taking a hazardous waste landfill project in Lianyungang as an example. Using the module of Slope/W module in Geo-Slope software,the stability analysis of the anti sewer groove is carried out,and meanwhile,the experimental research on the construction technology of cement soil mixed piles is tested. The construction technology of unconfined compressive strength and cement content of three kinds of cement soil mixed piles are compared and analyzed. The results show that the cement mixed piles can play a favorable supporting and reinforcing role for the coastal clay mucky soil,and four mixed four spray test strength of the three shaft mixed pile machine was best,the process in the content of 30% cement content can be more fully mixed soil mixing,to achieve the test design strength requirements.
引文
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[2]陈雨,徐铁兵,张婷婷,等.河北省危险废物产生处置现状及经营管理探讨[J].中国环境管理干部学院学报,2018,28(1):18-21,89.
[3]苏畅,姚倩.水泥土搅拌桩在垃圾卫生填埋场工程边坡加固及地基处理中的应用[J].施工技术,2013,42(S1):72-75.
[4]杨超,王凯,舒伟富.海相软土三轴剪切蠕变特性及模型研究[J].工业建筑,2017(12):26-30.
[5]马冬梅.水泥土搅拌桩变掺量施工工艺研究[J].现代交通技术,2008,5(1):12-14,37.
[6]吴文汇.搅拌桩和排水板堆载预压联合处理软土地基的应用研究[J].广东土木与建筑,2013,20(6):33-35.
[7]彭子泳,许发明.水泥搅拌桩加固软土地基应用技术研究[J].广东公路交通,2012(3):115-119.
[8]郑涛,张玉灯,毛新生.基于Geo-Slope软件的土质边坡稳定性分析[J].水利与建筑工程学报,2008,6(1):6-8.
[9]陈孝刚,董瑞朝,陶志刚,等.基于Geo-Slope的南芬露天铁矿A区滑坡体稳定性分析[J].金属矿山,2017(10):155-158.