文献类型：期刊文献

中文题名：吻合岩石结构面一体化制作模具研制及试验对比研究

英文题名：Development and experimental comparative study of the integrated mold for fit joint of rock

作者：罗战友[1,2,3];李棋[1];熊志强[1];邹宝平[1];黄曼[2];杜时贵[2]

机构：[1]浙江科技学院土木与建筑工程学院;[2]绍兴文理学院土木工程学院;[3]浙江大学滨海和城市岩土工程研究中心

年份：2018

卷号：37

期号：3

起止页码：689

中文期刊名：岩石力学与工程学报

外文期刊名：Chinese Journal of Rock Mechanics and Engineering

收录：CSTPCD、、EI(收录号：20183505757654)、北大核心2017、Scopus、CSCD2017_2018、北大核心、CSCD

基金：国家自然科学基金资助项目(41572299;41602308;41427802)~~

语种：中文

中文关键词：岩石力学;岩石结构面;直剪试验;制作周期

外文关键词：rock mechanics; rockjoint; direct shear test; manufacturing period

中文摘要：常规吻合岩石结构面制作模具由于采用上盘和下盘结构面分开制作易造成上下盘结构面性能差异大、直剪试验测试结果稳定性差等缺点。基于上盘和下盘结构面物理力学性能一致性和测试结果可靠性等主要因素,采用竖向放置的结构面面板研制了吻合岩石结构面快速一体化制作模具,新研制模具主要由侧板、底板、结构面面板、螺杆及螺帽等组成,不但结构简单、拆装方便,而且造价低廉及结构面易于振实。从加载面平整度、结构面表面孔隙率、剪切性能和制样周期等方面对新研制模具和常规模具制作试样进行试验对比分析。研究结果表明:一体化模具可实现上盘和下盘结构面整体浇筑,能保证上盘和下盘结构面物理力学性能的一致性;竖向放置的结构面面板有利于结构面表面气泡排出,能降低孔隙率约7%;试样加载面平整度更高,能保证结构面直剪试验数据的可靠性和稳定性;一体化模具较上下盘分开制作的常规模具可缩短制样周期40%左右。

外文摘要：Due to the separate manufacturing of the upper and lower rock joints,the conventional molds have many defects,such as the large difference in performance between the upper and lower rock joints and the poor consistency in shear strengths. For the consistency of physical and mechanical properties between the upper and lower rock joints and the reliability of test result,a rapid and integrated manufacturing mold of rock joint has been developed by using the vertical surface plate for rock joint. The newly developed molds were mainly composed of the side plate,the bottom plate,the surface plate of rock joint,the screw rod,the nut and so on. It is not only simple in structure and convenient to be disassembled,but also low in cost and easy to be vibrated. The integrated and conventional molds were compared and analyzed regarding the smoothness of loading surface,surface porosity of rock joint,manufacturing period and result of direct shear test. The results show the integrated mold can realize the overall cast of upper and lower rock joints and ensure the consistency between the upper and lower rock joints. The rock joint panel placed vertically is found to beneficial to discharge the bubble and reduce the porosity by about 7%. The smoothness of the loading surface of sample is higer,which ensures the reliability and consistency of shear strengths of rock joint. Compared with the conventional mold,the integrated mold can shorten about 40% manufacturing period.