rock technique

It has the characteristics of medium thickness and depth of the coal formation, low permeability, high mechanical strength of the coal rock, and high gas content and saturation etc. It is suitable to exploit with the technique of directional pinnate horizontal wells.

沁水煤层气田是中国典型的低渗透煤层气藏，具有煤层厚度和深度适中、渗透率低、煤岩机械强度高、含气量和饱和度高的特点，适合于定向羽状水平井技术条件。

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This technique provides necessary means in the studies of the productivity of such low permeability rock formations, reser-voir evaluation, active reserve estimation and resource estimation.

为研究低渗透油层产能状况，评价油层以及预测控制储量和远景储量，提供必要的研究手段和方法。

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Study on the Reinforcement and Supporting Technique of Deep Soft Rock Laneway

深部软岩巷道的加固与支护技术研究

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Protect Rock Slope of Road Cutting by Solid Greening Technique of Spray Seeding on Outside Soil

岩石路堑边坡防护客土喷播立体绿化技术

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The author introduce the construction program and technique as well as the quality control of prestressed anchor in the construction of powerhouse of Baise multipurpose dam project. Application results demonstrate that prestressed anchor can effectively prevent rock body sliding and deformation, so as to fulfill engineering requirement.

结合百色水利枢纽水电站工程对预应力锚杆的施工程序、施工工艺、质量控制进行论述，应用效果表明能有效防止岩体滑动与变形，满足工程要求φ产生的抗滑力。

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Testing Research of Laneway Wall Rock Stress Released by Advanced Bore Decompression Explosion Technique

超前钻孔卸压爆破技术释放巷道围岩应力试验研究

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Anisotropy of isothermal remanent magnetism is a recently developed technique for rock fabric study.

等温剩磁各向异性是一种新的磁组构研究方法.

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The technology of bolt-grouting support is a new kind of supporting technique in soft rock tunnels.

锚注支护技术是一种软岩支护新技术.

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Anchor concreting is an effective support technique to control surrounding rock deformation and keep tunnel stability.

锚杆注浆是一种行之有效的控制围岩变形和保证巷道稳定的支护技术.

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Spiral V-notch loosen blasting has broadened the application of notched blasting from a single blasting control technique to a rock fragmenting one by changing the conventional straight notch along the axis into two spiral notches around the axis.

将切槽控制爆破技术引入岩体松动爆破领域：螺旋切槽孔松动爆破将传统的轴向切槽方式进行改变，即把沿轴向平行的直槽改成绕轴线旋转螺旋切槽。

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