高边坡用全液压锚固钻机改型设计

发布时间：2018-04-21 13:19

本文选题：高边坡锚固施工 + 锚固钻机　；参考：《中国地质大学(北京)》2015年硕士论文

【摘要】：高边坡的支护是岩土工程领域中较为复杂的技术。岩土锚固技术以其具有的能够合理利用岩土自身的强度和自稳能力,可简化结构体系、提高结构物的稳定性,节约材料,工期短,造价合理等优点,成为目前广泛使用的高边坡支护方法。高边坡锚固施工时,锚索孔成孔施工难度较大,一方面对钻孔精度的要求高,地层条件通常较复杂,钻进难度大;另一方面工作面距地面高,需要搭设脚手架,工作面小,钻机的就位、移位困难,只能用轻型钻机施工,钻进能力有限。高边坡锚固要求钻机满足以下要求:对施工现场的适应性要强,工作可靠,轻便、分体性好,可在脚手架上安设;具有较高的钻进效率和钻孔质量;事故预防及处理能力强等。本文总结了高边坡锚固工程中,钻孔施工存在的难点,以及其对钻机性能的要求,简述了国内外锚固钻机的类型、性能特点及代表机型,重点对目前高边坡锚固支护工程中使用的轻型钻机进行了分析,对现有机型的实际应用情况、优缺点及未来的发展方向进行了阐述。结合一型已在实际施工生产中得到广泛应用的锚杆钻机,在分析其钻进能力、结构特点的基础上,提出改进设计,进一步完善钻机的模块化设计,利用铝合金材料作为零部件材料,大幅度降低钻机整装质量,并利用Solid Works Simulation软件对钻机零部件进行有限元分析。本文所设计钻机分为主机、动力站、操作台及钻机支撑架四大模块,除动力站外,其他模块的质量均控制在80kg内。其具备的优点主要是:整机质量小,模块式结构,各模块结构紧凑,拆装便捷,易于搬运;全液压驱动,可进行无极调速,动力头主轴通孔式结构,加杆、倒杆便捷,便于处理孔内异常情况;主机可直接与脚手架连接,便于高边坡锚固施工时钻机的安装及就位,配合支撑架模块,钻机可在地表进行施工,钻进倾角范围大,可用于锚固钻孔施工、浅层取样钻进及工程勘察施工。
[Abstract]:The support of high slope is a complicated technique in geotechnical engineering field. The technique of rock and soil anchoring can simplify the structure system, improve the stability of the structure, save the material, shorten the time limit, and make the cost reasonable, because it can make rational use of the strength and self-stability of the rock and soil, and can simplify the structure system, improve the stability of the structure and save the material. It has become a widely used method of high slope support. In the Anchorage construction of high slope, the construction of anchor cable hole is difficult. On the one hand, the requirement of drilling precision is high, the formation condition is usually more complicated, and the drilling is difficult; on the other hand, because of the high distance between the face and the ground, scaffolding is needed, so the working face is small. Drilling rig in position, difficult to shift, can only use light drilling machine construction, drilling capacity is limited. High slope anchoring requires drilling rig to meet the following requirements: strong adaptability to the construction site, reliable work, light, good separation, can be installed on the scaffold, with higher drilling efficiency and drilling quality, strong accident prevention and treatment ability, etc. This paper summarizes the difficulties existing in drilling construction of high slope Anchorage engineering and its requirements for drilling rig performance, and briefly describes the types, performance characteristics and representative types of anchor drilling rigs at home and abroad. The light drilling rig used in the Anchorage support engineering of high slope is analyzed, and the practical application, advantages and disadvantages of the existing models and the future development direction are expounded. Based on the analysis of the drilling ability and structural characteristics of the first type anchor drill, which has been widely used in actual construction production, the improved design is put forward to further improve the modularization design of the drill rig. Aluminum alloy is used as component material to greatly reduce the quality of drilling rig assembly, and the finite element analysis of drilling rig parts is carried out by using Solid Works Simulation software. The drill rig designed in this paper is divided into four modules: main engine, power station, operating platform and drilling rig support frame. The quality of other modules is controlled in 80kg except the power station. It has the advantages of small quality, modular structure, compact structure of each module, convenient disassembly and assembly, easy handling, full hydraulic drive, electrodeless speed regulation, through hole structure of the main shaft of power head, convenient adding rod and inverted rod, The mainframe can be connected directly with scaffolding, and the drilling rig can be installed and positioned during the Anchorage construction of high slope. With the support frame module, the rig can be constructed on the surface of the earth, and the drilling angle range is wide. It can be used for anchoring drilling, shallow sampling drilling and engineering investigation.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P634.31

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