Research and application of high pressure rotary jet grouting technology for plugging in complex formation
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摘要: 借鉴复杂地层高压旋喷护壁堵漏技术设计了一种带有特殊喷嘴的旋喷钻具,在复杂地层钻进,尤其是多层段复杂地层和深部复杂地层钻进时,泥浆护壁失效的情况下,将该钻具下到复杂孔段,利用泥浆泵将水泥浆液压入,通过旋喷钻具连续旋转喷射出高压水泥浆切割坍(垮)塌孔段孔壁,使不稳定孔壁的破碎岩土崩落掉块与水泥浆混合,候凝后,在坍(垮)塌孔段形成直径不规则的柱状水泥岩土混合体,重新钻穿后,形成有一定强度的“水泥套管”,从而达到同径护壁堵漏的目的。详细介绍了该项技术的旋喷钻具的设计、水泥浆液配方、工艺原理、技术要点、操作要领及生产应用效果。Abstract: With high-pressure jet grouting plugging technology for complex formations, a jet grouting tool with special nozzles is designed to drill through complex formations, especially multi-layer complex formations and deep complex formations where drilling mud fails to protect hole walls. The drilling tool is lowered to the complex hole section, and cement slurry is hydraulically injected by the mud pump, and sent out continuously through the tool at high pressure to cut the hole wall at the collapsed section where broken rock and soil from the unstable hole wall is mixed cement slurry. After waiting for setting, a columnar cement-rock-soil mixture with irregular diameter is formed at the collapsed hole section. After re-drilling, a “cement casing” with some strength is formed to achieve wall protection at the same diameter. The design, cement slurry formula, process principle, technical points, operation essentials and field application effects of the technology are introduced in detail.
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[1] 吴金生,李俊萍,张统得,等.一种用于钻孔护壁的高压喷射注浆组合钻具:
201520666584.6 [P].2015-12-16 .WU Jinsheng, LI Junping, ZHANG Tongde, et al. High-pressure jet grouting combined drilling tool for borehole wall protection:
201520666584.6 [P].2015-12-16 .[2] [2] 王达,何远信,等.地质钻探手册[M].长沙:中南工业大学出版社,2014WANG Da, HE Yuanxin, et al. Geological Drilling Handbook[M]. Changsha: Central South University Press, 2014
[3] [3] 李世忠.钻探工艺学[M].北京:地质出版社,1998.LI Shizhong. Drilling Technology[M]. Beijing: Geological Publishing House, 1998.
[4] [4] 乌效鸣,胡郁乐,贺冰新,等.钻井液与岩土工程浆液[M].武汉:中国地质大学出版社,2002.WU Xiaoming, HU Yule, HE Bingxin, et al. Drilling Fluid and Geotechnical Slurry[M]. Wuhan: China University of Geosciences Press, 2002.
[5] [5] 陶建华,李粤南,陈惠明,等.高压旋喷水泥浆护壁技术的研究与应用[J].探矿工程(岩土钻掘工程),2014,41(3):11-17.
TAO Jianhu, LI Yuenan, CHEN Huiming, et al. Research and application of wall protection technology with high pressure jet grouting cement slurry[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2014,41(3):11-17.
[6] [6] 彭金灶.马坑外围矿区ZK7924孔施工难点及对策[J].探矿工程(岩土钻掘工程),2011,38(9):10-12,15.
PENG Jinzao. Construction difficulties in ZK7924 hole of surrounding mining area of Makeng[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2011,38(9):10-12,15.
[7] [7] 张红涛.粗砂砾石地层中高压旋喷桩隔水帷幕施工技术[J].钻探工程,2021,48(6):113-117.
ZHANG Hongtao. Construction of the jet grout water cut-off curtain in coarse gravel formation[J]. Drilling Engineering, 2021,48(6):113-117.
[8] [8] 陈哲,张兆楠,石逊.福清核电厂边坡工程高压旋喷与帷幕灌浆止水施工技术[J].探矿工程(岩土钻掘工程),2016,43(5):71-75.
CHEN Zhe, ZHANG Zhaonan, SHI Xun. Application of high pressure jet grouting and curtain grouting water sealing in a nuclear power project[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2016,43(5):71-75.
[9] [9] 宋刚练,牌卫卫,江建斌,等.应用于污染场地原位修复的旋喷工艺研究[J].探矿工程(岩土钻掘工程),2017,44(7):85-89.
SONG Ganglian, Weiwei PAI, JIANG Jianbin, et al. Research on rotary jet grouting technology applied in situ remediation of contaminated site[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2017,44(7):85-89.
[10] [10] 宋志彬,张金昌,冯起赠,等.防渗加固高压旋喷注浆技术的研究与应用[J].探矿工程,2003(1):38-42.
SONG Zhibin, ZHANG Jinchang, FENG Qizeng, et al. The Research and application of high pressure rotary jetting technique for leak proofing and soil strenthening engineering[J]. Exploration Engineering, 2003(1):38-42.
[11] [11] 崔高汉,胡仲杰,方勇,等.高压旋喷成桩机理分析及其对设备的要求[J].探矿工程(岩土钻掘工程),2008,35(9):24-27,31.
CUI Gaohan, HU Zhongjie, FANG Yong, et al. Discussion on the mechanism analysis of high-pressure rotating spray pile and request for the equipments[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2008,35(9):24-27,31.
[12] [12] 罗帅训,赵建勃,贺雪峰,等.高压旋喷多管喷头的研制[J].探矿工程(岩土钻掘工程),2020,47(7):78-81,87.
LUO Shuaixun, ZHAO Jianbo, HE Xuefeng, et al. Development of the 11-tube high-pressure rotary jet nozzle[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2020,47(7):78-81,87.
[13] [13] 隆威,莫志柏,张忠永.单管高压旋喷扩体技术与植筋旋喷桩技术的研究与应用[J].探矿工程,2003(1):46-48.
LONG Wei, MO Zhibai, ZHANG Zhongyong. Application of and research on single-tube high pressure grouting technique and reinforced chemical churning pile technique[J]. Exploration Engineering, 2003(1):46-48.
[14] [14] 裴向军,王文臣,谢俊革,等.SJP水泥浆封堵强涌水钻孔可控注浆工艺技术研究[J].探矿工程(岩土钻掘工程),2017,44(5):62-67.
PEI Xiangjun, WANG Wenchen, XIE Junge, et al. Research on the controlled grouting process with SJP cement slurry for plugging of strong water gushing borehole[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2017,44(5):62-67.
[15] [15] 张佳兴,裴向军,靖向党.SJP型浆材在地基加固中的应用[J].探矿工程(岩土钻掘工程),2015,42(4):72-75.
ZHANG Jiaxing, PEI Xiangjun, JING Xiangdang. Application of SJP slurry in foundation reinforcement[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2015,42(4):72-75.
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