新型单平台凿井井架在深大立井井筒施工中的应用

发布时间：2019-01-30 20:24

【摘要】：为解决我国已定型凿井井架承载能力及结构尺寸等难以满足目前深大立井井筒凿井施工需求的现状,研制开发了适用立井井筒直径8~12 m、深度1 200 m条件的新型凿井井架。系统介绍新型单平台凿井井架的设计思路、结构特点和主要技术特征,优化、创新了新型凿井井架天轮平台和支撑体系结构,共包括2个系列(单平台、双平台)各3种规格(适用井径8 m、8~10 m、10~12 m),最多可同时布置4套提升装置,最大悬吊荷重达10 000 k N以上。研制的单平台SA-3型凿井井架已在辽宁本溪思山岭矿副井(井筒直径10 m、深度1 503 m)井筒工程中应用,并进行了实际工况下凿井井架受力监测。结果表明:新型凿井井架具有可靠的承载性能和施工适用性,凿井设备布置空间更大,布置方式更加灵活,可有效保障深大立井井筒的安全高效施工。
[Abstract]:In order to solve the problem that the load carrying capacity and structure size of the well-sinking frame in China are difficult to meet the requirements of deep and large shaft sinking at present, a new type of drilling Derrick is developed, which is suitable for shaft diameter of 8 ~ 12 m and depth of 1 200 m. This paper systematically introduces the design idea, structural characteristics and main technical features of a new type of shaft sinking Derrick on single platform, optimizes and innovates the platform and supporting system structure of the new type of shaft sinking Derrick, which consists of two series (single platform, single platform). Each of the two platforms has 3 specifications (suitable for 8 m, 8 m ~ 8 m ~ (10) ~ (10) m),) and up to 4 sets of lifting devices can be arranged at the same time, with a maximum suspended load of more than 10 000 KN and a maximum suspended load of more than 10 000 KN. The single platform SA-3 drilling Derrick has been applied in the shaft engineering of auxiliary well (hole diameter 10 m, depth 1 503 m) in Benxi Mountain Mine, Liaoning Province, and has been monitored under actual working conditions. The results show that the new shaft sinking frame has reliable bearing capacity and applicability, and the drilling equipment has more space for layout and more flexible arrangement, which can effectively guarantee the safe and efficient construction of deep shaft.
【作者单位】：中国矿业大学力学与建筑工程学院;中国矿业大学深部岩土力学与地下工程国家重点实验室;中国华冶科工集团有限公司;
【基金】：国家重点基础研究发展计划(863计划)资助项目(2012AA06A402) 中国博士后科学基金面上资助项目(2014M551701)
【分类号】：TD262.3

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