In the excavation process of mine roadway, the security of working face temporary support is a technical problem troubled the coal production for many years. The tunneling face should be designed with scientific, advanced and practical ideas, to ensure the steadiness of the rock, and reduce roof fall accidents. The point anchor is set up as the temporary support of the coal mine in tunneling tree anchor supporting, which is the key to effectively control the fractured surrounding rock, ensure the safety construction of the working face.%煤矿巷道掘进过程中，工作面临时支护安全问题是困扰煤炭生产多年的一项技术难题。应该本着科学规范、先进、实用的理念设计巷道掘进工作面的临时支护结构，保证岩体稳固，减少顶板冒落事故。煤矿掘进树锚支护中采用打设点锚进行临时支护，是对破碎围岩进行有效控制，保证掘进工作面安全施工的关键。
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