[1]王陕郡,胡长明,朱玉玉,等.考虑渗流影响的水平定向钻泥浆压力控制研究[J].西安建筑科技大学学报(自然科学版),2023,55(04):624-632.[doi:10.15986/j.1006-7930.2023.04.019 ]
　WANG Shanjun,HU Changming,ZHU Yuyu,et al.Study on mud pressure control of horizontal directional drilling considering seepage effect[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2023,55(04):624-632.[doi:10.15986/j.1006-7930.2023.04.019 ]
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考虑渗流影响的水平定向钻泥浆压力控制研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
55
期数:
2023年04期
页码:
624-632
栏目:
出版日期:
2023-10-26

文章信息/Info

Title:
Study on mud pressure control of horizontal directional drilling considering seepage effect
文章编号:
1006-7930(2023)04-0624-09
作者:
王陕郡1; 2; 胡长明3; 4; 朱玉玉3; 梁 慧1; 2; 杨 超1; 2
(1.陕西华山路桥集团有限公司，陕西 西安 710016; 2.陕西正诚工程研究院有限公司，陕西 西安 710016; 3.西安建筑科技大学 土木工程学院，陕西 西安 710055; 4.陕西省岩土与地下空间工程重点实验室，陕西 西安 710055)
Author(s):
WANG Shanjun1; 2; HU Changming3; 4;  ZHU Yuyu3; LIANG Hui1; 2; YANG Chao1; 2
(1.Shaanxi Huashan Road and Bridge Group Co., Ltd., Xi'an 710016, China; 2.Shaanxi Zhengcheng Engineering Research Institute Co., Ltd., Xi'an 710016, China; 3.College of Civil Engineering, Xi'an Univ. of Arch. & Tech., Xi'an 710055, China; 4.Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering, Xi'an 710055, China)
关键词:
水平定向钻;  泥浆压力;  渗流;  强度准则;  柱孔扩张
Keywords:
horizontal directional drilling;  mud pressure;  seepage;  strength criteria;  cylindrical cavity expansion
分类号:
TU431
DOI:
10.15986/j.1006-7930.2023.04.019
文献标志码:
A
摘要:
为研究在水平定向钻施工中如何合理控制泥浆压力以维持孔周土体的稳定、避免孔壁失稳,基于柱孔扩张理论,同时考虑浆液渗流和强度准则的影响,推导了孔壁周围土体的应力场、位移场和泥浆压力极限值的理论解答,并将理论值与实测值进行了对比分析.通过算例,对极限泥浆压力的控制以及渗流、强度准则等因素的影响进行了研究.结果表明:渗流对泥浆压力控制影响显著,随着渗透压力增大,泥浆压力极限值减小,孔壁处应力减小、位移增大; 不同准则下的泥浆压力极限值差异较大,应根据工程实际情况选择合适的强度准则,避免高估或低估极限泥浆压力; 可通过增加膨润土含量和地面注浆等措施来控制泥浆压力的影响.
Abstract:
In order to study how to reasonably control the mud pressure in the construction of horizontal directional drilling to maintain the stability of the soil around the hole and avoid the instability of the hole wall, based on the theory of column hole expansion, while considering the influence of seepage and strength criterion, the theoretical solutions of the stress field, displacement field and mud pressure limit value of the soil around the hole wall were derived, and the theoretical values were compared with the measured values. Through an example, the control of ultimate mud pressure and the influence of seepage and strength criterion were studied. The results show that the seepage has significant influence on the control of mud pressure. With the increase of seepage pressure, the limit mud pressure decreases, the stress at the drillhole wall decreases and the displacement increases. The limit values of mud pressure under different criteria are quite different. The appropriate strength criterion should be selected according to the actual situation of the project to avoid overestimating or underestimating the limit mud pressure. The influence of the mud pressure can be controlled by increasing the content of bentonite and ground grouting.

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备注/Memo

备注/Memo:
收稿日期:2022-09-23修回日期:2023-07-20
基金项目:陕西省自然科学基础研究计划基金项目(2022JQ-375); 陕西省教育厅专项科研计划基金项目(17JK0424)
第一作者:王陕郡(1974—)，男，本科，高级工程师，主要研究方向为:非开挖工程技术.E-mail:w21110508@163.com
通信作者:胡长明(1963—)，男，博士，教授.主要研究方向为:地下工程施工技术.E-mail:hu.tm@163.com
更新日期/Last Update: 2023-08-28