Selection of minning technology,support method and parameters of medium-thick seam is introduced.

介紹了中厚煤層一次采全高的回采工藝、支護(hù)方法和具體參數(shù)的選擇,即工作面回采時(shí)不留底煤,增加煤炭回收率,對(duì)支柱布置形式進(jìn)行改進(jìn),并在理論上進(jìn)行安全系數(shù)驗(yàn)算。

The article introduces the shortwall mining method along strike in medium-thickness seam with great dip angle,which is based on individual hydraulic prop and has brought great economic effect.

在大傾角中厚煤層推行走向短壁采煤方法,使用單體液壓支柱,取得較好的技術(shù)經(jīng)濟(jì)效果。

The authors elaborate the application of longwall mining with descentional ventilation at 7327 working face in the medium-thickness seam with big dip-angle,and point out the ways of fire prevention by giving even air pressure,burying pipe and gelatinizing,and using atomizing inhibitor.

論述沛城煤礦7327回采工作面大傾角中厚煤層下行通風(fēng)長壁開采,采用均壓、埋管注膠、霧化阻化劑等防滅火措施及效果,提出了采煤工作面大傾角中厚煤層長壁開采的防滅火方法。

Theoretical determination of the section coal pillar's reserve-width in medium thick coal seam

中厚煤層區(qū)段煤柱留設(shè)寬度理論確定

The adaptability of full-mechanized powered support in medium thick coal seam under the geology condition of coal seam in Wanbei minefield is studied and the rule of support design,equipment selection and mating in working face and the safety and technology measures in use are put forward.

結(jié)合國內(nèi)外液壓支架發(fā)展趨勢(shì),研究了皖北礦區(qū)煤層地質(zhì)條件下,中厚煤層綜采工作面液壓支架適應(yīng)性,提出液壓支架設(shè)計(jì)、工作面設(shè)備選型配套原則以及使用中應(yīng)采取的安全技術(shù)措施。

The specific calculated data of mining technology in the steeply pitching medium thick coal seam and it\'s application effect in real construction are introduced.

介紹了急傾斜中厚煤層回采工藝的具體計(jì)算數(shù)據(jù),以及在實(shí)際施工中的應(yīng)用效果;同時(shí)介紹了采后沿空留巷的施工方法。

Observation on the intima media thickness of the carotid artery and endothelium-dependent vascular dilation function of brachial artery in patients with periodontiti;

牙周炎患者頸動(dòng)脈內(nèi)膜中層厚度與肱動(dòng)脈內(nèi)皮依賴性血管擴(kuò)張功能的觀察

Theoretical determination of the section coal pillar's reserve-width in medium thick coal seam

中厚煤層區(qū)段煤柱留設(shè)寬度理論確定

mechanized heading development

機(jī)械化平巷開采中厚煤層法

On Technology with Gas Prevention and Control of Gob-side Roadway Excavation in Medium-thickness Seam;

中厚煤層沿空掘巷瓦斯防治技術(shù)初探

Support Technology of Roadways Driving in Steep Middle Thick Coal Seam

急傾斜、中厚煤層巷道掘進(jìn)支護(hù)技術(shù)

"Three soft" in thick Coal Comprehensive mechanization mining stent selection of importance

“三軟”中厚煤層綜采支架選型的重要性

Application of Split-top Beam Suspended Support in Slope and Middle Thick Coal Seam

分體頂梁懸移支架在傾斜中厚煤層中的應(yīng)用

On fully-mechanized long-wall face coal mining technology for thin and rather-thin middle-thick coal seam

薄及較薄中厚煤層綜合機(jī)械化長壁開采研究

Opening roadway along the goaf in the middle- thick coal seam in GeQuan Mine

葛泉礦中厚煤層沿空留巷礦壓觀測(cè)與分析

Practice on Fire Prevention at Longwall Working Face in Medium-thickness Seam with Big Dip-Angle

大傾角中厚煤層長壁回采工作面防滅火實(shí)踐

Study on the Reasonable Retainning of the Waterproof Coal Pillar of Steep Medium & Thick Coal Seam with Hard Roof;

急傾斜堅(jiān)硬頂板中厚煤層防水煤柱合理留設(shè)研究

Water Environmental Effects Caused by Rapid Slice Mining for Medium-Thickness Coal Seam Under Water Body

水體下中厚煤層分層快速綜采的水環(huán)境效應(yīng)研究

Mining Technology of Thinner Coal Seam at Yu Jia-liang Coal Company

榆家梁煤礦中厚偏薄煤層的開采技術(shù)

Application of wave impedance inversion in coal seam thickness prediction

波阻抗反演在煤層厚度預(yù)測(cè)中的嘗試

Application of low caving coal hydraulic support in thick coal seam with large tilt angle

低位放頂煤液壓支架在大傾角厚煤層中的應(yīng)用

The anchor net supporting application in high seam tunneling of Sanyuan coal industry

錨網(wǎng)支護(hù)在三元煤業(yè)厚煤層巷道掘進(jìn)中的應(yīng)用

The Research of Reasonable Setting up Pillar Coal to Prevent Sand from Collapsing in the Moderate and Thick Unconsolidated Formation;

中厚松散層下防砂（塌）煤柱合理留設(shè)研究

Stress concentration role mechanism of ultra thick seam to cause pressure bumping

巨厚煤層應(yīng)力集中誘發(fā)沖擊礦壓的作用機(jī)理

Long Borehole Gas Pre-pumping Applied Research on Thick Coal Seam Groups with Coal and Gas Outburst

長鉆孔在煤與瓦斯突出厚煤層群瓦斯預(yù)抽中的應(yīng)用研究