[1]郑守铭.超长距离钢顶管穿越富水砂层的关键技术[J].福建工程学院学报,2022,20(04):322-326.[doi:10.3969/j.issn.1672-4348.2022.04.003]
 ZHENG Shouming.Key techniques of super-long-distance steel pipe jacking through water-rich sand stratum[J].Journal of FuJian University of Technology,2022,20(04):322-326.[doi:10.3969/j.issn.1672-4348.2022.04.003]
点击复制

超长距离钢顶管穿越富水砂层的关键技术()
分享到:

《福建工程学院学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第20卷
期数:
2022年04期
页码:
322-326
栏目:
出版日期:
2022-08-25

文章信息/Info

Title:
Key techniques of super-long-distance steel pipe jacking through water-rich sand stratum
作者:
郑守铭
福州城建设计研究院有限公司
Author(s):
ZHENG Shouming
Fuzhou City Construction Design & Research Institute Co., Ltd.
关键词:
钢顶管富水砂层超长距离
Keywords:
steel pipe jacking water-rich sand stratum super-long distance
分类号:
TU991
DOI:
10.3969/j.issn.1672-4348.2022.04.003
文献标志码:
A
摘要:
以福建省平潭及闽江口水资源配置工程中穿越乌龙江的钢顶管为例,研究超长距离钢顶管穿越富水砂层的顶力控制与安全保障等关键技术。 钢管在高渗透性地层中顶进,选用泥水平衡顶管机,严控管节质量,工作井洞口以高压旋喷桩加固。 为保持超长距离顶管稳定受力状态,设计中将管道河床埋深设计为8~10 m,最大总顶力估算为29 000 kN,并设置3 个中继间。 实际工程中,配置添加纯碱与CMC 的膨润土泥浆作为润滑剂,减阻效果良好,实测顶进力不超过4 000 kN。 该案例可为类似超长距离穿河钢顶管的设计提供参考。
Abstract:
Taking the steel pipe jacking crossing the Wulong River in the project of resources allocation in Pingtan and Minjiang Estuary as an example, the jacking force control and engineering security of ultra-long-distance steel pipe jacking through the water-rich sand stratum was studied. For the jacking drive in high-permeability stratum, the slurry balance pipe jacking machine was selected. The quality of the steel pipe were strictly controlled. The opening of the working well was reinforced with high-pressure jetting piles. In order to maintain the stable stress state of super-long-distance pipe jacking, the design value of the buried depth of the pipeline in the river bed was 8~10 m, and 3 the maximum total jacking force was estimated as 29 000 kN intermediate jacking stations were set up. In actual engineering, soda ash and CMC were added into the bentonite mud as the lubricant, which exhibited a good drag reduction effect. The measured jacking force did not exceed 4 000 kN. The implementation of this case can provide a reference for the design of similar ultra-long-distance river-crossing steel pipe jacking.

参考文献/References:

[1] 马保松. 非开挖工程学[M]. 北京: 人民交通出版社, 2008.[2] 郑聪, 马保松. 基于ABAQUS的顶管施工中钢管稳定性分析[J]. 给水排水, 2016, 52(4): 99-103.[3] 张鹏, 马保松, 曾聪, 等. 深埋曲线钢顶管接触压力现场监测试验分析[J]. 华中科技大学学报(自然科学版), 2016, 44(5): 93-97.[4] 〖JP3〗张鹏, 王翔宇, 曾聪, 等. 深埋曲线钢顶管受力特性现场监测试验研究[J]. 岩土工程学报, 2016, 38(10): 1842-1848.[5] 〖JP3〗邵光辉, 薛双, 赵志峰, 等. 考虑轴线偏差的钢顶管允许顶力计算方法[J]. 地下空间与工程学报, 2018, 14(3): 729-734.[6] 刘猛, 杨春利, 亓路宽. 非开挖施工钢制管直顶顶力数值分析[J]. 地下空间与工程学报, 2019, 15(S1): 211-218.[7] 冯锐, 张鹏, 苏树尧, 等. 大口径长距离钢顶管注浆减阻技术: 以黄浦江上游水源地连通管工程为例[J]. 地质科技通报, 2020, 39(4): 174-180.[8] 黄建华, 陈月香, 王蕴晨, 等. 大断面顶管工程减摩泥浆配合比实验研究[J]. 福建工程学院学报, 2019, 17(3): 212-218.[9] 黄智刚. 长距离曲线岩石顶管技术用于供水管道建设[J]. 中国给水排水, 2020, 36(20): 39-44.[10] 陈昆鹏, 吴立鹏, 王翔, 等. 钢顶管截面应力影响因素分析[J]. 武汉大学学报(工学版), 2020, 53(S1): 360-363.[11] 潘伟强, 焦伯昌, 柳献, 等. 深埋大断面钢结构顶管接触压力及受力特性现场试验研究[J]. 现代隧道技术, 2021, 58(5): 104-113.[12] 中国工程建设标准化协会. 给水排水工程顶管技术规程: CECS 246—2008[S]. 北京: 中国计划出版社, 2008.[13] 张鹏, 马保松, 曾聪, 等. 基于管土接触特性的顶进力计算模型分析[J]. 岩土工程学报, 2017, 39(2): 244-249.

更新日期/Last Update: 2022-08-25