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物探与化探  2019, Vol. 43 Issue (3): 667-671    DOI: 10.11720/wtyht.2019.1464
  工程勘察 本期目录 | 过刊浏览 | 高级检索 |
利用温度检测钻孔灌注桩混凝土拌合物面的研究
杜鹏1, 刘晓玲1, 徐新战2, 常镪1, 付连红3
1. 海口经济学院,海南 海口 570100
2. 陕西工程勘察研究院,陕西 西安 710000
3. 宁波易通建设有限公司,浙江 宁波 315800
Research on concrete mixture surface detection for bored pile based on temperature
Peng DU1, Xiao-Ling LIU1, Xin-Zhan XU2, Qiang CHANG1, Lian-Hong FU3
1. Haikou College of Economics, Haikou 570100, China
2. Shaanxi Engineering Investigation Institute, Xi'an 710000, China
3. Ningbo Yitong Construction Co., Ltd.,Ningbo 315800, China
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摘要 

基于水化放热原理和室内外试验,发现混凝土拌合物层和浮浆层两者有明显的温差,显示可通过温度变化来确定混凝土拌合物灌注高度。据此设计了一种便携式用于判定混凝土拌合物面是否到达设计高度的温控式装置:在设计桩顶高度位置及其下方50 cm处分别埋置一个温度传感器,在设计桩顶高度下方50 cm的温度传感器获得混凝土拌合物的温度峰值,利用设计桩顶高度位置的温度传感器的温度峰值判定混凝土拌合物顶。建议混凝土拌合物超灌在设计桩顶高度位置即第2个温度传感器上方50 cm,比规范要求少超灌0.3 m,能节约混凝土。

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杜鹏
刘晓玲
徐新战
常镪
付连红
关键词 钻孔灌注桩混凝土拌合物浮浆泥浆温控式装置温度传感器    
Abstract

Based on the principle of hydration heat release and indoor and outdoor tests, it is found that there is a significant temperature difference between the concrete mixture layer and the floating slurry layer, indicating that the pouring height of the concrete mixture can be determined by the temperature change. A portable temperature control device is designed to determine whether the concrete mixing surface reaches the designed height, that is to say, a temperature sensor is respectively embedded at the height of the designed pile top and at the height of 50cm below, and the temperature sensor of 50cm below the height of the designed pile top is used to obtain the temperature peak of the concrete mixture, and then the temperature peak of the temperature sensor at the height of the designed pile top is used to determine the concrete mixture top. It is suggested that the concrete mixture should be overfilled at the height of the designed pile top, namely 50cm above the second temperature sensor, which is 0.3m less than the norm and can save concrete.

Key wordsbored piles    concrete mixture    laitance    mud    temperature controlled device    temperature sensor
收稿日期: 2018-12-18      出版日期: 2019-05-31
:  P631  
基金资助:海南省重点研发计划项目(ZDYF2017097)
作者简介: 杜鹏(1985-),男,硕士,讲师,研究方向为桩基工程。
引用本文:   
杜鹏, 刘晓玲, 徐新战, 常镪, 付连红. 利用温度检测钻孔灌注桩混凝土拌合物面的研究[J]. 物探与化探, 2019, 43(3): 667-671.
Peng DU, Xiao-Ling LIU, Xin-Zhan XU, Qiang CHANG, Lian-Hong FU. Research on concrete mixture surface detection for bored pile based on temperature. Geophysical and Geochemical Exploration, 2019, 43(3): 667-671.
链接本文:  
https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2019.1464      或      https://www.wutanyuhuatan.com/CN/Y2019/V43/I3/667
Fig.1  混凝土拌合物灌注环境模拟装置示意
1—多功能反力架;2—检测装置预留孔道;3—千斤顶;4—法兰盘;5—千斤顶顶升速率控制器;6—材料桶;7—位移传感器;8—温度传感器;9—不锈钢连杆;10—采集系统
使用材料 要求标准
水泥 32.5R级复合硅酸盐水泥
级配2区砂,细度模数Mx=2.7的中砂,表观密度
ρg=1 690 kg/m3,含水率0.57%
石子 碎石,最大粒径40 mm,表观密度ρg =1 390 kg/m3,含水率0.84%
自来水
Table 1  混凝土拌合物材料统计
Fig.2  不同材料层温度随时间变化规律
Fig.3  现场试验装置示意
1—顶杆;2—1号、2号温度传感器,3—3号、4号温度传感器;4—横梁;5—安装支座;6—方套管;7—中槽钢;8—底槽钢;9—第二压紧螺栓;10—锁紧螺栓;11—第一压紧螺栓;12—法兰盘;13—内螺纹套筒;14—锁紧螺帽;15—钢护筒;16—通孔;17—T型孔
Fig.4  温度变化曲线
Fig.5  2号温度传感器温度变化曲线
Fig.6  温度传感器布置
[1] 邵春, 鄢泰宁, 兰凯 , 等. 超声波测钻孔灌注桩混凝土拌合物灌注面高程的研究[J].工程勘察, 2009(6):74-78.
[1] Shao C, Yan T N, Lan K , et al. Study on altitude measurement of concrete injection surface of bored pile with ultrasonic wave[J].Geotechnical Investigation & Surveying, 2009(6):74-78.
[2] 付祖良 . 钻孔灌注桩水下混凝土拌合物灌注技术研究与应用[D]. 武汉:华中科技大学, 2006.
[2] Fu Z L . Research and Application on the Technology of Pouring Concrete of Bored Piles Under Water[D]. Wuhan:Huazhong University of Science & Technology, 2006.
[3] Du P, Liu X L, Fan J L , et al. Review of Research on Elevation Positioning of Concrete Filling Surface of Bored Piles[C]// 2018 International Conference on Civil and Hydraulic Engineering, Qingdao,China,Institute of Physics Publishing, 2018.
[4] 李亮亮, 卢士涛, 冯玉国 , 等. 低标高桩顶水下钻孔灌注桩混凝土拌合物超灌高度控制装置研制[J]. 施工技术, 2017,46(1):36-38.
[4] Li L L, Lu S T, Feng Y G , et al. Development of control device of concreting in excess for bored pile underwater with low elevation pile head[J]. Construction Technology, 2017,46(1):36-38.
[5] 张磊, 崔建军, 李建辉 . 超长细比钻孔灌注桩施工技术研究[J]. 建筑技术开发, 2017,44(20):92-94.
[5] Zhang L, Cui J J, Li J H . Study on constrution technique of super slenderness ratio bord pile[J]. Building Technology Development, 2017,44(20):92-94.
[6] 张海滨, 孙杰 , 等 .混凝土拌合物灌注桩灌注高度控制装置及其使用方法[P].中国专利,CN106013160 A, 2016 -10-12.
[6] Zhang H B, Sun J, et al. Filling Height Control Device of Concrete Mixture in Bored Piles and its Application Method[P].Chinese Patent, CN106013160A, 2016 -10-12.
[7] 兰凯 . 钻孔桩砼灌面超声波测量的关键技术及其实现[D]. 北京:中国地质大学, 2008.
[7] Lan K . Key technologies on using ultrasonic method for concrete casting level measurement in borded pile foundation and its realization[D]. Beijing: China University of Geosciences, 2008.
[8] 连绍平 . 采用探测杆测定桩顶砼面[J].探矿工程, 1999(3):38.
[8] Lian S P . The concrete surface at the top of pile is measured by detecting rod[J]. Exploration Engineering, 1999(3):38.
[9] 朱景萍, 刘留春, 贺学庆 , 等. 灵江特大桥大直径水下钻孔灌注桩施工技术[J]. 建筑施工, 2007,29(3):211-213.
[9] Zhu J P, Liu L C, He X Q , et al. Construction technology of underw ater big diam eter bored pile for Linjiang super large bridge[J]. Building Construction, 2007,29(3):211-213.
[10] 张国强, 曹惠宾 . 水下混凝土拌合物超灌标高定位研究[J].地质装备, 2006(4):33-35.
[10] Zhang G Q, Cao H B . Study on the pouring elevation of underwater concrete[J]. Equipment for Geotechnical Engineering, 2006(4):33-35.
[11] 陈德强 . 采用水下混凝土拌合物灌注标高定位仪进行标高定位的研究[J]. 价值工程, 2018: 126-128.
[11] Chen D Q . Research on elevation positioning using underwater concrete pouring elevation locator[J]. Value Engineering, 2018: 126-128 .
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