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全套管全回转钻机成孔与高精度无差钢立柱植入工法

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全套管全回转钻机成孔与高精度无差钢立柱植入工法

发布日期:2019-05-13 作者: 点击:

YOUYUWOGUOTUDIZIYUANRIYIJINZHANG,CHENGSHIGAOCENGJIANZHUJIGUIDAOJIAOTONGJIANSHEDEGAOSUFAZHAN,DIXIAKONGJIANKAIFAGONGCHENGYEZAIBUDUANZENGZHANG,GUIMOZHUJIANKUODA。MUQIAN,GUONEIYIKAIWADEGONGYEJIANZHUJIKENGZUISHENDA37.4m。ZAIGUOWAI,DIXIASHIJIKENGYIDA13CENG,SHENDUCHAOGUO50m。SHENJIKENGZHIHUSHIGONGFANGFAHENDUO,JINJINIANZAIWOGUOXINXINGJIHUJISHUPUBIANCAIYONGDESHIGAIWAFAZHONGDENIZUOFA,YOUQISHIGAOCENGJIANZHU、DUOCENGDIXIASHIHEGUIDAOJIAOTONGDIXIACHEZHANDUOCENGDIXIAJIEGOUDESHIGONG。JINNIANLAIWOGUOKEYUNZHUANXIANYUCHENGSHIGUIDAOJIAOTONGGONGYONGDEJIAOTONGSHUNIUGONGCHENG,DIXIAKONGJIANDUOWEIFU3ZHI4CENG,SHENDUYIBANWEI-25mZHI-32m,JIBENDOUCAIYONGNIZUOFASHIGONGNIZUOFASHIGONGSHIZAIJIKENGNEISHIZUOZHONGJIANJICHUZHUANG,JICHUZHUANGYIBANCAIYONGZUANKONGGUANZHUZHUANG。GUANZHUZHUANGJIAOZHUZHIJIKENGDIBIAOGAOHOU,ZAIJICHUZHUANGDINGANZHUANGYIGENNIZUOSHIGONGDEZHICHENG,SHANGBUSHIGONGHEZAIDEYONGJIUXINGGANGLIZHU。GANGLIZHUCHUIZHICHARUSHIGONGGONGYISHIZAINIZUOFASHIGONGZHONGJICHUZHUANGJIYUGANGLIZHULIANJIEDESHIGONGFANGFA。

常规的钢立柱安装是在基础桩混凝土灌注前安装一个与基础桩直径相同的钢套管的基础桩混凝土7σ%强度后,抽除钢套管内泥浆,采用人工下孔破除桩顶混凝土至永久性钢立柱底标高,定位器安装完毕再安装钢立柱。该施工方法施工周期长、工序复杂,且施工过程中工人要下到孔底进行混凝土的凿除及定位器安装,存在诸多不安全因素,单根钢立柱施工周期长达10~20天,施工成本也较高,存在一定的局限性。针对本工程特点和关键冋题,我公司在工程实践中断积累、总结经验,成功硏制开发出采用全套管全回转钻机广东快乐十分走势图垂直插入钢立柱的工法,较好地解决了上述难题。

2.GONGFATEDIAN:

2.1、SHIGONGTEDIAN

1)QUANTAOGUANQUANHUIZHUANZUANJISHIJIQUANYEYADONGLIHECHUANDONG、JIDIANYELIANHEKONGZHIYUYITIDEXINXINGZUANJI

2)JUYOUQUANHUIZHUANTAOGUANZHUANGZHI,YARUTAOGUANHEWAJUETONGSHIJINXING

3)ZHUADOUYIKAODIAOJIDEDAXIAOYUDIAOGOUPEIHELAIWANCHENGDUITUCENGDECHONGWAZUOYE。ZUOYESHI,SHENZHUADOUYANTAOGUANNEIBIZIYOUXIALUO,XIALUOSUDUKUAI,CHONGJILIQIANG,YINGZHIDICENGKEZHIJIECHONGWA,QIEZUOYEXIAOLVGAO;DOURENCHENGYUANHUXING,QIEDOUTIZHONG,KESHIXIANSHUIXIASHENWA;NEIZHIHUALUNZU,ZHUAJINLISUIQIDIAOLIDEZENGJIAERCHENGBEIZENGJIA

4)在岩层用冲击锤反复冲击,破碎后用冲抓斗广东快乐十分走势图挖掘。由于该钻机具有强大的扭矩、压入力及刀头,可完成硬岩层中的施工作业,其可在单轴抗压强度为150~200MPa的硬岩层中顺利的施工

广东快乐十分走势图5)KEYIBIMIANNIJIANGHUBIFACHENGKONGGONGYISUOZAOCHENGDENIMOHECHENZHA,DUIGUANZHUZHUANGCHENGZAILIXIAORUODEYINGXIANG

6)QUANTAOGUANQUANHUIZHUANZUANJITONGGUOYABAZHUANGZHIHEZHU、FUJIAJINZHUANGZHIPEIHE,BAGANGLIZHUKUAISUZHIRUZHUANGKONGHUNNINGTUZHONG,XIAOLVGAO、ZHILIANGHAO

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