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1)  Injection Installed PHC Piles
静压PHC桩
1.
The Construction Technology and Authorware Application of Injection Installed PHC Piles;
静压PHC桩施工技术及其Authorware应用
2)  PHC static pile
PHC静压桩
3)  jacked-in PHC pipe pile
静压PHC管桩
1.
According to the data analysis of static load tests,geological exploration reports and construction records of jacked-in PHC pipe pile of the representative projects in the Songhua River floodplain areas,and based on the actual ultimate vertical bearing capacity of a single pile calculated by Q~s curve,the increase coefficients of ultimate tip resistance standard value are obtained,which is 1.
目的探讨适合松花江漫滩地区静压PHC管桩的极限端阻力标准值的提高系数、单桩竖向极限承载力标准值的计算公式,给出单桩竖向极限承载力标准值与终压力的区域经验公式。
4)  PHC pile
PHC桩
1.
The application of shearing displacement in the calculation of PHC pile bearing;
剪切位移法在PHC桩承载力计算中的应用
2.
Analysis and settlement of quality problem during the PHC pile construction under complex stratum condition;
复杂地层条件下PHC桩施工质量问题分析及处理
3.
The analysis of the measures taken to dig deeply to protect PHC pile;
深基坑开挖对PHC桩的保护措施分析
5)  PHC piles
PHC桩
1.
Some researches on design and driving of PHC piles;
PHC桩设计施工中的几个问题
2.
This article discusses some issues unsolved about lightning protection grounding device of PHC piles and provides some correction suggestions based on the construction experience.
本文对PHC桩基础防雷接地装置施工中存在的若干问题及其改进方法进行探讨,并结合工程实际经验提出了建议意见。
3.
The limitation of low-strain pulse echo method s in the PHC Piles testing are analyzed, and the principle of the method with video monitor through the hole of foundation, the development and the application of the instrument are introduced.
针对低应变反射波检测法在PHC桩完整性检测中的局限性,阐述了基桩孔内摄像技术的原理、仪器的研制及应用,并通过工程实践证实了该技术具有直观、精确、可进行定量分析等优越性。
6)  PHC pipe pile
PHC管桩
1.
On the construction of PHC pipe pile with static pressure method and its quality control;
浅谈PHC管桩静压法施工和质量控制
2.
Rising phenomenon and prevention treating of PHC pipe pile;
PHC管桩上浮现象及其预防处理
3.
Discussion of static pressure construction with PHC pipe pile and quality management;
PHC管桩静压法施工及质量管理探析
补充资料:PHC
分子式:C11H16NO3
分子量:209.13
CAS号:

熔点:84~87℃
性状:白色结晶粉末,微带特殊气味。
溶解情况:20℃水中溶解度约0.2%,溶于大多数有机溶剂。
用途:残杀威为飞内吸性氨基甲酸酯类杀虫剂,具有触杀、胃毒和熏蒸作用,击到快,速度接近敌敌畏,持效期长。能杀体外寄生虫、家庭卫生害虫(蚊、蝇、蟑螂等)和仓贮害虫。以1~2g有效成分/平方米剂量,喷1%悬浮液防治猎蝽,配蝇饵比敌百虫好。在作物上最后一次用药,应在收获前4~21天。
制备或来源:邻异丙基酚溶解在脱水二噁烷中滴加甲基异氰酸酯和三乙胺,反应混合液逐渐升温,冷却,析出结晶,加石油醚后,结晶完全析出,收集结晶生成物,即残杀威。副产物尿素用石油醚和水洗涤,除去溶剂,减压、50℃下干燥,从苯中重结晶,回收残杀威。制剂有:原药,有效成分含量95~98%。
备注:在强碱性介质中不稳定,PH10、20℃时的半衰期为40min。急性经口毒性LD50(mg/kg):雄大白鼠90~128,雌大白鼠104,雄小白鼠100~109,雄豚鼠40。雄大白鼠急性经皮毒性LD50为800~1000mg/kg。以含有250mg/kg残杀威的饲料喂雄、雌大白鼠两年,无危害;以含750mg/kg残杀威的饲料喂饲雌、雄大白鼠两年,雌大白鼠的港肝重增加,在其他方面没有不利影响。对蜜蜂有高毒。鲤鱼TLm(48h)为10mg/L以上。稻米的允许残留量为1.0mg/L。ADI为0.02mg/kg。
类别:杀虫剂


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