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提升巷道掘进技术实现机械化新发展.doc

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1、http:/ http:/ operation is the main form of coal mining in our country, more than 90% of the raw coal from underground, so improve the efficiency of underground mining of coal production is very important. In major coal mines in China, fully mechanized coal mining mechanization level is much higher

2、than that of the fully mechanized mining mechanization, development unbalance restricts the development of coal industry. The rapid development of domestic mining technology has greatly increased the roadway consumption, improve the imminent tunnelling technology, promote efficient machinery develop

3、ment of tunneling technology has become the inevitable development of tunneling technology.在矿山生产与建设的过程中,巷道稳定性控制是一项难题,特别是具有集中的断层破碎带,同时在很大程度上受到http:/ http:/ In the process of mine production and construction, stability control of roadway is difficult, especially with centralized fault fracture zone, b

4、ut also influenced by the tectonic stress in a large extent, easily lead to the instability, causing the entire roadway caving roof fall even scrapped. The grouting reinforcement technique by roadway caving zone, can well solve the problem of roof caving roadway construction, speed up the constructi

5、on progress, to solve the problem of mining excavation in construction safety.连续采煤机是一种综合机械化掘采设备,可以同时进行大断面落煤、运送等作业,适用于矩形断面的双巷或多巷和短壁开采,是一种提高煤炭产量的重要设备。 Continuous mining machine is a kind of comprehensive mechanized mining and excavation equipment, can be carried out simultaneously large section coal,

6、transport operations, suitable for rectangular double lane or alley and short wall mining, is a important equipment in coal production.掘锚一体化施工技术的优势于能提高锚杆支护效果,改http:/ http:/ 65%,煤巷掘锚一体化必然是提高煤巷掘进速度的发展趋向,对提高矿井的效率和产量有重要意义,所以成为我国发展和推广的重点技术。在国内的研发过程中,要重点研究我国的地质结构特征,结合我国煤炭生产的特点来开发施工工艺,同时,掘锚机组、掘进机机载锚杆钻机等配到设

7、备要同步研制。 Construction technology of anchor integration dig advantage to improve bolt supporting effect, improve the mining environment, driving speed can be increased by 65%, coal roadway bolting integration is the inevitable trend in the development of improved driving speed of coal roadway, has imp

8、ortant significance for improving the efficiency and output, so it becomes the key technology development and promotion of our country. In the process of development in China, the characteristics of the geological structure to focus on the research of our country, combining the characteristics of Ch

9、inas coal production to the development of construction technology, at the same time, the tunneling bolterminer, airborne Roofbolter with equipment to synchronous development.实践表明,在巷道掘进中采用锚杆锚索联合支护较好的控制了顶板,支护效果较好,但在支护设计过程中,应根据现场的实际情况合理设计支护参数,如锚杆长度、排间距等,http:/ http:/ shows that, using bolt and anchor

10、combined support to better control the roof in mine roadway excavation, supporting effect is good, but in the support design process, should be based on the rational design of the actual situation of support parameters, such as the bolt length, row spacing, and it can be combined with the steel belt

11、, metal mesh, H steel beam, which is to improve the supporting quality, increase efficiency, reduce cost, has important significance.锚杆支护技术在重点煤矿已经普及,在中小型煤矿中还需要大力推广和改进。锚杆支护技术的发展方向是地质力学测试与评估和动态信息技术,提高锚杆支护的整体性能。Bolt supporting technology has been popularized in key coal mines, in the middle and small c

12、oal mines also need to vigorously promote and improve. The development direction of the bolt support technology is the geological mechanics test and evaluation and dynamic information technology, improve the overall performance of bolting support.锚注技术适用在破碎围岩的隧道施工、边坡治理以及坝基加固等工程中,它的支护机理是在破碎围岩巷道的破碎塑性区,

13、经过自钻锚杆注浆后,破碎结构的围岩被交接成拱形http:/ http:/ Anchor bolt grouting technology applied in broken surrounding rock tunnel, slope and dam foundation engineering, its supporting mechanism is the plastic zone in the broken rock roadway through crushing, self-drilling anchor grouting, broken surrounding rock is ar

14、ched structure transition continuum reinforcement ring. At the same time, self-drilling anchor and suspension, compression, so that the surrounding rock of roadway along the radial extrusion pressure into tangential force, prevent to expand the scope of the roadway surrounding rock loose, radial str

15、ess decreases to less support resistance can make the surrounding rock in stable state for a long time. Supporting a http:/ http:/ grouting and anchoring together. Construction of the way first drilling hole and grouting anchor and anchor with drilling with two. Grouting to grouting pump, in the con

16、struction of the selection should be based on the grouting pressure, grouting flow, material properties and construction site space size determination. By bolting and grouting grout diffusion in fractured rock, the diffusion bonding of broken rock within the radius of together, the coal and rock loo

17、se to form a whole, effectively improve the self bearing capacity of surrounding rock; at the same time, grouting bolt played a full-length anchoring effect, make the roadway surrounding rock strength are improved obviously.我国是煤炭生产和消耗的大国,巷道掘进技术和装备的先进程度之间影响着煤炭生产的效率和安全性能,为此,我们要紧跟世界的先进技术的发展方向,加快国内技术提高的

18、步伐,让先进的技术和设备为煤炭生产发挥更大的作用。China s coal production and consumption country, the degree of tunneling between advanced technology and equipment affects the efficiency and security of coal production, therefore, the development direction of advanced technology we keep pace with the world, to speed up the pace to improve domestic technology, advanced equipment and technology to http:/ http:/ a greater role in coal production.

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