CAJ | 학술논문

膨胀波纹管技术是将圆管制成异形截面管，下入孔内后胀圆维护孔壁稳定的一种新兴钻探技术。针对地质勘探的行业需求，提出了一套膨胀波纹管截面形状的设计理论，系统地阐述了膨胀波纹管截面设计的相关步骤和细节，设计出了6种花形不同尺寸的膨胀波纹管截面设计图。在此基础上，利用ANSYS14．0数值模拟软件对不同的设计截面进行了对比分析，得出了膨胀波纹管选择的3条原则：六瓣梅花形是最佳截面形式；设计截面的波峰和波谷的半径、弧度应尽量接近；在满足护壁压力要求的情况，壁厚应尽量的小。
팽창파문관기술시장원관제성이형절면관，하입공내후창원유호공벽은정적일충신흥찬탐기술。침대지질감탐적행업수구，제출료일투팽창파문관절면형상적설계이론，계통지천술료팽창파문관절면설계적상관보취화세절，설계출료6충화형불동척촌적팽창파문관절면설계도。재차기출상，이용ANSYS14．0수치모의연건대불동적설계절면진행료대비분석，득출료팽창파문관선택적3조원칙：륙판매화형시최가절면형식；설계절면적파봉화파곡적반경、호도응진량접근；재만족호벽압력요구적정황，벽후응진량적소。
Expandable profile liner ( EPL) is a new drilling technology of hole wall stability maintenance, the round tube is pressed to be special cross-section tube, lowering into the hole, then expanding to circular tube.Aiming at the require-ments of geological exploration industry, a set of design theory of expandable profile liner section shape is put forward in this paper, the related steps and details of the design are systematically described, and design diagrams of expandable pro-file liner section shape of 6 different models and sizes were presented.On this basis, comparative analysis on the different designed section shapes are made by using ANSYS14.0 numerical simulation software, 3 principles for expandable profile liner selection are obtained:plum blossom with six petals is the best section shape;the crest&troughs radius dimensions of the designed section and the radian should be as close as possible; and the wall thickness should be as small as possible under the prerequisite of satisfying the requirements of wall protection pressure.