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水力压裂裂缝开裂压力影响因素分析及应用

煤炭工程 2024年第9期56卷 127-135页

作者：赵会波山西天地王坡煤业有限公司山西晋城048000

为了合理确定水力压裂的压裂时机和钻孔方位布置,从水力压裂钻孔周围的应力分布状态出发,将钻孔的方位角和倾斜角作为水力压裂裂缝起裂压力的主要影响因素,在巷道地应力场分类的基础上,从钻孔参数(方位角、倾斜角)与地应力场类型角度对... 详细信息

为了合理确定水力压裂的压裂时机和钻孔方位布置,从水力压裂钻孔周围的应力分布状态出发,将钻孔的方位角和倾斜角作为水力压裂裂缝起裂压力的主要影响因素,在巷道地应力场分类的基础上,从钻孔参数(方位角、倾斜角)与地应力场类型角度对水力压裂裂缝开裂压力的影响规律进行了研究。同时结合天地王坡煤矿采动影响下顶板三维主应力演化实测研究,确定了3308运输巷道压裂时机与钻孔空间布置原则,在此基础上提出受二次采动影响的3308运输巷双侧压裂方案。现场煤柱钻孔应力监测结果表明,采用双侧压裂方案相比常规压裂方案其峰值应力降低了52.9%。巷道围岩变形监测显示,双侧压裂方案与原压裂方案相比,顶板下沉量降低了14.0%,底鼓量降低了37.8%,两帮移进量降低了56.6%,3308运输巷道围岩得到了较好的保护。

关键词：水力压裂钻孔方位角地应力场卸压方案

Leaf Morphology Genes SRL1 and RENL1 Co-Regulate Cellulose Synthesis and Affect Rice Drought Tolerance

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Rice science 2024年第1期31卷 103-117,I0020-I0022页

作者： LIU Dan zhao huibo WANG Zi’an XU Jing LIU Yiting WANG Jiajia CHEN Minmin LIU Xiong ZHANG Zhihai CEN Jiangsu ZHU Li HU Jiang REN Deyong GAO Zhenyu DONG Guojun ZHANG Qiang SHEN Lan LI Qing QIAN Qian HU Songping ZHANG Guangheng State Key Laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 310006China Research Center of Plant Functional Genes and Tissue Culture Technology College of Bioscience and BioengineeringJiangxi Agricultural UniversityNanchang 330045China Qian Qian Academician Workstation National Nanfan Research Institute(Sanya)Chinese Academy of Agricultural SciencesSanya 572024China

The morphological development of rice(Oryza sativa L.)leaves is closely related to plant architecture,physiological activities,and ***,it is unclear whether there is a co-regulatory relationship between the morphological development of leaves and adaptation to drought *** this study,a drought-sensitive,roll-enhanced,and narrow-leaf mutant(renl1)was induced from a semi-rolled leaf mutant(srl1)by ethyl methane sulfonate(EMS),which was obtained from Nipponbare(NPB)through ***-based cloning and functional validation showed that RENL1 encodes a cellulose synthase,allelic to NRL1/*** RENL1 mutation resulted in reduced vascular bundles,vesicular cells,cellulose,and hemicellulose contents in cell walls,diminishing the water-holding capacity of *** addition,the root system of the renl1 mutant was poorly developed and its ability to scavenge reactive oxygen species(ROS)was decreased,leading to an increase in ROS after drought ***,genetic results showed that RENL1 and SRL1 synergistically regulated cell wall *** results revealed a theoretical basis for further elucidating the molecular regulation mechanism of cellulose on rice drought tolerance,and provided a new genetic resource for enhancing the synergistic regulation network of plant type and stress resistance,thereby realizing simultaneous improvement of multiple traits in rice.

关键词： cellulose cell wall drought tolerance leaf morphology rice

煤矿超600 m垂直输料井快速钻井工艺及其关键技术

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煤矿安全 2024年第8期55卷 234-241页

作者：赵会波汤正山西天地王坡煤业有限公司山西晋城048000 天地科技股份有限公司北京100013

随着煤矿开采量的增加和采区接续,煤矿井下辅助运输系统存在换装转运环节多、往返时间较长,辅运能力下降和综合效率低等问题,通过增设布置垂直输料井可提高煤矿辅助运输能力。以山西王坡煤矿超600 m垂直输料井的建设为背景,论证了地质... 详细信息

随着煤矿开采量的增加和采区接续,煤矿井下辅助运输系统存在换装转运环节多、往返时间较长,辅运能力下降和综合效率低等问题,通过增设布置垂直输料井可提高煤矿辅助运输能力。以山西王坡煤矿超600 m垂直输料井的建设为背景,论证了地质钻机钻井法、石油钻机钻井法、风动潜孔锤钻机钻井法、竖井钻机钻井法、反井钻机钻井法等钻井工艺技术和装备的可行性;鉴于拟建垂直输料井下部已经形成的生产系统的有利体条件,确定了采用反井钻机钻井法施工深度617 m、直径1 m的垂直输料井的方案;针对垂直输料井地层条件和深度大、直径小的工程特点,给出了超600 m垂直输料井反井钻机钻井过程中导孔钻进偏斜控制方法、扩孔钻进反井钻机选型依据、扩孔钻进参数随钻控制方法和钻井安全措施,并完成了工程现场应用。

关键词：井筒构建钻井工艺反井钻机机械破岩辅助运输扩孔钻进偏斜率控制

随掘地震地质构造精细监测在山西王坡煤矿的应用

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煤田地质与勘探 2024年第6期52卷 137-144页

作者：赵会波覃思陈超关奇赵星伟车建航山西天地王坡煤业有限公司山西晋城048021 中煤科工西安研究院(集团)有限公司陕西西安710077 煤炭智能开采与岩层控制全国重点实验室陕西西安710077

【目的】传统巷道地震超前探技术受限于炸药使用、停掘需求、预报速度、探测范围及能力等方面的不足,难以满足智能掘进工作面的高精度地质构造探测需求。【方法】随掘地震以掘进机截割煤壁的震动为震源,采用数据实时上传、自动处理及动... 详细信息

【目的】传统巷道地震超前探技术受限于炸药使用、停掘需求、预报速度、探测范围及能力等方面的不足,难以满足智能掘进工作面的高精度地质构造探测需求。【方法】随掘地震以掘进机截割煤壁的震动为震源,采用数据实时上传、自动处理及动态成像的工作模式,充分利用信息技术和软件支撑,借助于海量数据支撑下的实时连续超饱和叠加,大幅提升了对掘进工作面前方地质异常体的成像精细度。以山西王坡煤矿为研究对象,在2条掘进巷道中部署了随掘地震监测系统,开展地质构造精细探查。【结果和结论】实际工作中,利用监测作业开展后48 h内积累的数据,即可对掘进工作面前方200 m范围内地质异常体成像。在3217工作面回风巷中,成功揭示了掘进工作面前方97 m的矸石挤压带反射异常,预报误差1 m;在3303工作面运输巷中,揭示了掘进工作面前方39 m的陷落柱,预报误差2 m;在3303工作面运输巷中,揭示了2处煤层破碎带异常区,其中,一处位于掘进工作前方148 m,预报误差1 m,另一处位于掘进工作面前方211 m外,在前序陷落柱和煤层破碎带遮挡下,依然足以形成较强的成像结果,预报误差3 m。结果表明:该技术探测精度高、探测距离远且探测能力强,可为瓦斯灾害的防治提供技术支持,为煤矿巷道安全高效掘进提供可靠的地质保障。

关键词：矿井安全随掘地震地质构造煤层破碎带挤压带陷落柱

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王坡煤矿碎软煤层气动定向高效成孔工艺研究

煤矿安全 2024年第4期55卷 48-54页

作者：赵会波李雨成太原理工大学山西太原030000 山西天地王坡煤业有限公司山西晋城048000

针对王坡煤矿碎软煤层区域瓦斯治理的需求,对现有气动定向钻进工艺及装备进行优化升级。通过对气动螺杆钻具升级改造,将额定扭矩提升至450 N·m以上;研制的89 mm低风阻螺旋通缆钻杆配套有线通缆测量系统,施工孔深提升至300 m以上;基于... 详细信息

针对王坡煤矿碎软煤层区域瓦斯治理的需求,对现有气动定向钻进工艺及装备进行优化升级。通过对气动螺杆钻具升级改造,将额定扭矩提升至450 N·m以上;研制的89 mm低风阻螺旋通缆钻杆配套有线通缆测量系统,施工孔深提升至300 m以上;基于“波浪式”精准探测煤层顶底板钻孔轨迹工艺,从侧钻开分支原理出发,改进钻具造斜强度实现快速开分支;系统性分析气动定向工艺在不同地层钻进时轨迹变化特点,形成精准轨迹控制技术,大幅提升施工效率。现场试验期间,共计完成34个主孔,49个分支孔,总进尺17 287 m,平均成孔深度350 m,平均日进尺103 m/d,最高154 m/d,钻孔平均瓦斯抽采体积分数60%以上,百米钻孔抽采纯量是邻近区域普通钻孔2.7倍。

关键词：气动定向钻进工艺气动螺杆钻具低风阻螺旋通缆钻杆精准轨迹控制快速开分支

顶管掘进机新型支撑推进与回拉机构的设计与应用

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煤矿机电 2024年第3期45卷 28-32页

作者：赵会波赵利国马强山西天地王坡煤业有限公司山西晋城048021 中煤科工集团上海有限公司上海200030

城市地下管道顶管施工中,通常会遇到需要将预制水泥管回收再利用的问题,同时希望顶管机施工过程中,中间换刀的空间能够更大更安全,而传统的中继间结构目前无法实现。为了解决这一施工中的难题,设计了一种带支撑调向机构的特殊中继顶进系... 详细信息

城市地下管道顶管施工中,通常会遇到需要将预制水泥管回收再利用的问题,同时希望顶管机施工过程中,中间换刀的空间能够更大更安全,而传统的中继间结构目前无法实现。为了解决这一施工中的难题,设计了一种带支撑调向机构的特殊中继顶进系统,该特殊中继间结构通过在传统中继间基础上增加前后撑靴结构,实现中继间系统既能向前推进又能向后回撤,从而达到将预制水泥管顶出再利用以及将刀盘回拉增大前端换刀空间的目的。

关键词：特殊中继系统撑靴结构岩石顶管施工水泥管回收换刀空间

Zircon U-Pb geochronology,whole-rock geochemical,and Sr-Nd-Pb isotopic constraints on the timing and origin of Permian and Triassic mafic dykes from eastern North China Craton

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Acta Geochimica 2020年第6期39卷 862-886页

作者： Shen Liu Caixia Feng Yan Fan Xiaoqing Chen Yuhong Yang huibo zhao Ian MCoulson State Key Laboratory of Continental Dynamics and Department of Geology Northwest UniversityXi'an 710069China College of Earth Sciences Jilin UniversityChangchun 130061China Solid Earth Studies Laboratory Department of GeologyUniversity of ReginaReginaCanada

This work reports an important episode of extensional,mafic magmatism that impacted the North China Craton(NCC)during the Permo-Triassic and influenced the evolution of this *** sampled 30 representative mafic dykes cropping out in eastern NCC,within the Hebei Province,*** zircon LA-ICP-MS U-Pb ages,geochemical,and Sr-Nd-Pb isotopic data for these mafic dykes identified them as typical dolerites formed between 211.9±1.3 and 263.9±2.6 *** mafic rocks fall into the alkaline and calc-alkaline *** are enriched in light rare earth elements,some large ion lithophile elements(e.g.,***,and Sr),K,and Pb,and depleted in Nb,Ta,and *** dykes have high initial 87Sr/86Sr ratios(0.7034-0.7178),negative eNd(t)values(—2.2 to—5.9),and relatively constant initial Pb isotopic ratios,that are EMI-like:(206Pb/204Pb)i=16.39-16.74,(207pb/204pb)j=15.22-15.24,and(208Pb/204Pb)i_=36.66-36.86,*** results indicate that the Hebei Province dolerites were likely derived from magma gen erated through low-medium degree partial melting(3.0-20%)of an EMI-like garnet-lherzolite mantle *** parental magmas fractionated olivine,clinopyroxene,and Ti-bearing phases with obvious crustal contamination during rapid ascent and dyke *** the possible influence of subduction of the Yangtze Plate has been excluded,we propose a model for the origin of the investigated mafic rocks,involving the Pennian collision between the Siberian Block and the *** mafic dykes of eastern NCC within Hebei Province formed during a period of crustal thinning in response to extension after the early Permian collision.

关键词： Permo-Triassic Dolerite Origin NCC Siberian block

Zircon U–Pb dating,geochemical,and Sr–Nd–Pb–Hf isotopic constraints on the age and origin of intermediate to felsic igneous rocks at South Altyn,Xinjiang,China

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Acta Geochimica 2020年第5期39卷 698-716页

作者： Shen Liu Caixia Feng Yan Fan Xiaoqing Chen Yuhong Yang huibo zhao Ian M.Coulson State Key Laboratory of Continental Dynamics and Department of Geology Northwest University229 Taibai RoadXi'an 710069China College of Earth Sciences Jilin University2199 Jianshe RoadChangchun 130061China Solid Earth Studies Laboratory Department of GeologyUniversity of ReginaReginaSK S4S 0A2Canada

As a part of a giant trending fault system in the Asian continent and one where a strong zone of left strikeslip fault is present,the Altyn Orogenic belt(AOB)has become an important focus for *** rocks are widely distributed across the ***,many investigations have focused primarily on Paleozoic igneous rocks;discussion of Mesozoic related igneous activity is often *** we present the result of studies of representative diorite and granite rocks outcropping in the AOB,within the Xinjiang Uygur Autonomous Region,South Altyn,*** present new zircon LA-ICP-MS U-Pb age,geochemical,and Sr-Nd-Pb-Hf isotopic data for these sample suites,identifying them as typical igneous rocks formed between 238±1.5 and 238.8±1.1 *** rocks that we studied fall into the alkaline series,also enriched in light rare earth elements(LREE),some large ion lithophile elements(LILE;e.g.,Rb,Ba,Sr,and K),Pb,Th and U,and depleted in heavy rare earth elements(HREE),Nb,Ta,Hf,and *** granite and diorite have high initial 87Sr/86Sr ratios(0.7062-0.7114),negativeεNd(t)values(-8.8 to-11.3),εHf(t)values(-8.7 to-18.7),and relatively constant Pb isotopic ratios((206-Pb/204Pb)i=6.74-17.884,(207Pb/204Pb)i=15.51-15.58,and(208Pb/204Pb)i=35.36-38.04),*** suggests that the magmas parental to these rocks were generated from the partial melting of the ancient *** parental magmas to these rocks experienced a degree of fractionation of plagioclase,K-feldspar,and hornblende,possibly during rapid magma *** on these studies,we propose a reasonable model for the origin of the investigated rocks from the Xinjiang Uygur Autonomous Region of South Altyn,which involves crustal thickening,lithospheric extension,and asthenosphere upwelling,that induced crustal melting.

关键词： Altyn orogenic belt Zircon U–Pb dating Geochemistry,Sr–Nd–Pb–Hf isotope Origin

Zircon U-Pb Age,Geochemical,and Sr-Nd-Pb-Hf Isotopic Constraints on the Time Frame and Origin of Early Cretaceous Mafic Dykes in the Wuling Mountain Gravity Lineament,South China

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Acta Geologica Sinica(English Edition) 2021年第2期95卷 419-438页

作者： CHEN Xiaoqing LIU Shen FENG Caixia XU Jingyan zhao huibo FENG Guangying Ian M.COULSON SUN Jinggui FAN Yan College of Earth Sciences Jilin UniversityChangchun 130061China State Key Laboratory of Continental Dynamics and Department of Geology Northwest UniversityXi'an 710069China Institute of Geology Chinese Academy of Geological SciencesBeijing 100037China Solid Earth Studies Laboratory Department of GeologyUniversity of ReginaReginaSaskatchewan S4S 0A2Canada

In view of the importance of mafic dyke swarms and their contribution to current scientific problems relating to South China,herein,we present the findings of studies on twenty–five representative mafic dykes cropping out in Hunan Province and Guangxi Zhuang Autonomous Region,within the southern Wuling Mountain gravity lineament,*** results include new zircon LA-ICP-MS U-Pb age,whole rock geochemical,Sr-Nd-Pb isotopic,and zircon Hf isotopic data for these *** dykes formed between 131.5±1.2 and 121.6±1.1 Ma,and have typical doleritic *** fall into the alkaline and shoshonitic series,are enriched in light rare earth elements(LREE),some large ion lithophile elements(LILE;e.g.,Rb,Ba,and Sr),Th,U,and Pb,and are depleted in Nb,Ta,Hf,and ***,the dolerites have high initial 87 Sr/86 Sr ratios(0.7055–0.7057),negativeεNd(t)and zirconεHf(t)values(-14.8 to-11.9,-30.4 to-14.9),and relatively constant initial Pb isotopic ratios(that are EM1-like,16.77–16.94,15.43–15.47,and 36.84–36.92 for 206 Pb/204 Pb,207 Pb/204 Pb,and 208 Pb/204 Pb,respectively).These results indicate that the dykes were likely derived from magma generated through low-degree partial melting(1.0%–10%)of an EM1-like garnet–lherzolite mantle *** parental magmas fractionated olivine,clinopyroxene,plagioclase,and Ti-bearing phases with negligible crustal contamination,during ascent and dyke *** possible models have been proposed to explain the origin of Mesozoic magmatism along the Wuling Mountain gravity *** we propose a reasonable model for the origin of these mafic dykes,involving the collision between the paleo-Pacific Plate and South China,which led to subsequent lithospheric extension and asthenosphere upwelling,resulting in partial melting the underlying mantle lithosphere in the Early Cretaceous,to form the parental magmas to the WMGL mafic dykes,as studied.

关键词： mafic dykes magmatic origin Early Cretaceous Wuling Mountain gravity lineament South China