广州《秋千顶技》获“金 K”奖

第九届摩纳哥"初登舞台"杂技节1997年3月1日举行。我国广州市杂技团七位少女共同表演的《秋千顶技》和《球技》两节目参加了本届比赛。十七岁的哈尔滨姑娘徐虹娇表演的《秋千顶技》,在六位小仙女的伴舞下,飘然于十米高空,手持绸带空舞,恰似嫦娥奔月。她以完美的表演高兴地分别从摩纳哥大公和摩纳哥市长手中捧回本届杂技节唯一金奖——"金 K"奖和特别奖——"摩纳哥市"奖;《球技》由于冬妮。

《秋千顶技》——“童年的梦”获“希望之路”比赛金奖

3月9日上午,在比利时图格内市刚刚落下帷幕的第11届"希望之路"国际青少年杂技大赛上,沈阳军区政治部前进杂技团新编排的杂技节目《秋千顶技——童年的梦》,以最高得分获得金奖。这届杂技大赛,汇聚了来自俄罗斯、西班牙、德国、法国、加拿大和中国等16个国家的25个节目,120余名演员。《秋千顶技——童年的梦》是我国此次派出参赛的唯一节目。赵志(12岁)、郑茜(14岁)是本届参赛选手中年龄最小、获奖等级最高的演员。

杂技的发展在于创新——谈《晃球顶技》的创作

杂技艺术是中国传统的民族艺术之一,起源于何时,尚无准确记载,但从出土文物汉代百戏画像砖中的图像看,早在汉代百戏杂陈时代,杂技表演不仅占有突出的地位,而且多种多样,技艺不同凡响。杂技艺术生存发展、流传至今,可谓数千年经久不衰。但是,作为一种传统表演艺术,杂技在旧社会的发展是十分缓慢的,基本上停留在以其锅、碗、瓢、勺、桌、椅、坛、缸、刀、火等门类的纯“技巧”单调的表演形式,且日趋僵化和衰落。解放后,随着科学技术的发展,杂技在继承传统的基础上才开始进入现代杂技艺术发展的新阶段,不仅在技巧上狠下功夫,同时在综合艺术上吸收姊妹艺术之长,补已之短,对编导、作曲、舞美设计、灯服道效等方面都逐步健全了自己的专门队伍,特别是在道具改革钻研上。

山城迎春花——重庆杂技创作轨迹

近三年来,重庆杂技艺术团的《舞流星》、《晃板跷碗》、《顶技》、《蹬人》、《爬杆》、《转碟》、《钻地圈》等节目相继在三次国际、两次全国重大杂技比赛中夺得了三枚金牌、五枚银牌、一枚铜牌以及多项单项奖,从而结束了重庆杂技团在国内外杂技大赛中与金牌无缘的历史,重振了重庆杂技艺术团的雄风,提高了重庆团在全国杂技界的知名度。当然,成功和荣誉,与演员们超负荷、超难度的艰苦训练所付出的努力分不开,但更重要的是来自于我们多年来对艺术美的追求,走出了一条技艺并重,以完美的综合艺术表现形式烘托和体现高难度技巧的新路。

金K银K都OK——广州杂技再获国际双奖

3月1日下午,摩纳哥第九届"初登舞台"国际杂技比赛赛场传来喜讯,中国参赛的徐虹蛟表演的《秋千顶技》,荣获本届比赛唯一金K奖;辛旭和于冬妮表演的《球技》,荣获银 K 奖第一名。当来自广州杂技团的这3名小演员接过大会颁发的奖品奖杯时,兴奋不已,几年来的艰苦训练,终于有了优异的成果。广州杂技团的参赛人员,26日随同文化部组成的中国参赛小组从北京登机,经法国巴黎,转道摩纳哥,到达比赛现场。27日当晚就连夜装台,次日只有仅仅一天的走台时间,好在当地的气候与广州相差不大,但时差的影响,对她们的精神、体力、技术发挥的状态,都是个严峻的考验。由于平时严格、正规的训练,养成习惯,在场地、环境、时差变化的情况下。

又见德阳 德阳杂技团十进北京朝阳剧场演出

近年,随着中国杂技走出国门,被越来越多的人知晓,来华旅游的各国来宾把逛北京首选的三件事锁定为"登长城、吃烤鸭、看杂技"。他们以一睹原汁原味的中国杂技为快事。坐落在北京东三环的朝阳剧场常年演出杂技,每晚华灯初上,那里的豪华旅游客车便排成了长龙,白皮肤、黑皮肤、黄皮肤的各国来宾接踵而至,他们在那里领略到中国杂技的风采,中国杂技使他们为之惊叹、为之欢呼。久而久之,朝阳剧场便成了各杂技团向往的国内演出市场,他们竞相投标于此。德阳杂技团十年前还是一个名不见经传的小小民营杂技团。

执教《晃板造型》

我是80年代初期进入杂技团的,主演过《双层晃板》等节目。90年代后期开始担任《晃板造型》的主教练。1999年12月,在河南省第4届杂技比赛上,《晃板造型》得了金奖,我本人也荣获优秀教师奖;

在马来西亚的日子

义演百场为华校筹款边玉宽热心于慈善和公益活动,他为家乡建设和国内文化事业已捐款近百万元,在马来西亚三年多的时间里,也经常搞义演活动,为当地慈善事业和地方建设做贡献。今年他又筹划了一个大动作:为全马来西亚的华校筹款,在马来西亚全国巡回义演100场。这对于在海外独资经营、靠演出市场生存的边玉宽娱乐艺术有限公司不能不说是个义举。

一个基层文化干部的杂技情怀——记中国杂协“德艺双馨”会员、浠水县文化局副局长胡兴华

在湖北省“民间艺术之乡”的浠水县,中国杂技家协会会员、湖北省杂技家协会副主席、县文化局副局长胡兴华是个有名实干家,群众认为他是一个不同寻常的人物。2006年9月27日,当他作为湖北省唯一一位荣获中国杂协“德艺双馨”会员,并光荣出席在北京人民大会堂举行的表彰大会时,他那“多吃苦、少享受,多奉献、少取予”的感人事迹,已在全县广为流传。

挪威商演小组归来

2006年3月,应挪威著名的阿诺德马戏团邀请,中国杂协派出的挪威商演小组踏上挪威的土地,进行为期半年的巡回演出,安徽杂技团的《高空秋千》、济南杂技团的《坛子》、四川遂宁市杂技团的《晃梯顶技》各具特色,向挪威人民展现了中国杂技的风采。9月13日清晨。

陇原杂坛女强人——江小玉

江小玉,湖北省应山县人,七岁始入河南信阳杂技团学艺,1960年入甘肃省杂技团为主要演员,1980年担任演员队长,代表节目有《牙咬空中飞人》、《顶技》、《顶碗》、《转碟》、《椅子顶》、《切砖》等。1984年,她加入中国共产党,现为甘肃省杂技团团长,国家一级演员,同时担任中国杂协理事,甘肃杂协主席,甘肃省政协委员、省文联委员、省海外交流协会理事。做为演员,她几十年如一日坚持练功和登台演出;做为教员,她已为团里培养出五代优秀人才;做为团长,她正为团里今日的生存和明日的腾飞废寝忘食地四处奔波。

An Intermediate Reference Datum Static Correction Technique and Its Applications

Static corrections using the conventional method are basically conducted in two steps, the weathering correction followed by the correction from the top of the sub-weathering to the unified datum. However, the conventional method fails to well deal with statics problems in case the top of the sub-weathering is sharply undulated and the lateral velocity of the sub-weathering varies significantly. This brings us to the introduction of a smooth intermediate reference datum （IRD） located under the top of the sub-weathering, which helps to further increase the accuracy of statics based on the weathering corrections, and ensures the imaging quality. Good results based on the IRD technique have been achieved in the complex areas in western China. This paper discusses the IRD functions, its application requirements, and selection of related parameters. Some typical sections for comparison are also given in this paper.

科学训练与心理素质

杂技艺术是人体技巧艺术。超常的技巧表演,始终是杂技艺术的核心。杂技演员,必须具备超常的技巧功能。我十二岁进杂技团,后来担任“底座”演员,曾演出《晃球顶技》《女子大跳板》《技巧造型》《红盖头·抛绢》等优秀节目。我深深感到,杂技演员要获得超常的技巧,并表演自如,尽善尽美,必须解决好两个问题,即科学的技巧训练和良好的心理素质。

Mechanism and technology study of collaborative support with long and short bolts in large-deformation roadways

Common short bolts of equal length are widely used to support the roofs of roadways in coal mines.However, they are insufficient to keep the roof stable against large deformations, so docking long bolts with high levels of elongation that can adapt to large deformations of the surrounding rock have been adopted. This paper proposes a collaborative support method that uses long and short bolts. In this study,the mechanism of docking long bolts and collaborative support was studied. Numerical simulation, similarity simulation, and field testing were used to analyze the distribution law of the displacement, stress,and plastic failure in the surrounding rock under different support schemes. Compared with the equal-length short bolt support, the collaborative support changed the maximum principal stress of the shallow roof from tensile stress to compressive stress, and the minimum principal stress of the roof significantly increased. The stress concentration degree of the anchorage zone clearly increased. The deformation of the roof and the two sides was greatly reduced, and the subsidence shape of the shallow roof changed from serrated to a smooth curve. The roof integrity was enhanced, and the roof moved down as a whole. Plastic failure significantly decreased, and the plastic zone of the roof was within the anchorage range. The similarity simulation results showed that, under the maximum mining stress,the roof collapsed with the equal-length short bolt support but remained stable with the collaborative support. The collaborative support method was successfully applied in the field and clearly improved the stability of the surrounding rock for a large deformation roadway.

Underground mining of thick coal seams

This paper reviews underground mining methods for total thickness of a thick coal seam in single lift （TI＇rCSSL）. Review shows the required engineering for extraction of thick seams needs to be fitted with thickness of the seam, behavior of rock-mass and surrounding stress conditions for efficient mining. Variants of TI＇rCSSL are able to extract a maximum 10-12 m thickness only. An improvement in bending moment of the overlying coal band in longwall top coal caving （LTCC） provides better under-winning opportunity for the roof coal band. An acceptable limit of 25 MPa compressive strength of coal for the success of LTCC may be increased under favorable geo-technical conditions. Bord and pillar in India adopted induced caving of roof coal band for single lift depillaring of total thickness （SLDTr） of a compe- tent thick coal seam developed along floor. Case studies are given to arrest the adverse effects of extrac- tion height on pillars.

Mechanisms and Kinematics of Hydraulic Support for Top-Coal Caving

The structure and characteristic of new type of hydraulic support for top coal caving were discussed. The mechanism and kinematics of the hydraulic support were analyzed. The formulas were deduced to calculate the velocity and acceleration of top beam, shield beam, front and back legs, which give the solution to the design and research for hydraulic support.

Field investigation into directional hydraulic fracturing for hard roof in Tashan Coal Mine

t Research and development of safe and effective control technology of hard roof is an inevitable trend at present. Directional hydraulic fracturing technology is expected to become a safe and effective way to control and manage hard roof. In order to make hard roof fracture in a directional way, a hydraulic fracture field test has been conducted in the third panel district of Tashan Coal Mine in Datong. First, two hydraulic fracturing drilling holes and four observing drilling holes were arranged in the roof, followed by a wedge-shaped ring slot in each hydraulic fracturing drilling hole. The hydraulic fracturing holes were then sealed and, hydraulic fracturing was conducted. The results show that the hard roof is fractured directionally by the hydraulic fracturing function of the two fracturing drilling holes; the sudden drop, or the overall downward trend of hydraulic pressure from hydraulic monitoring is the proof that the rock in the hard roof has been fractured. The required hydraulic pressure to fracture the hard roof in Tashan coal mine, consisting of carboniferous sandstone layer, is 50.09 MPa, and the fracturing radius of a single drilling hole is not less than 10.5 m. The wedge-shaped ring slot made in the bottom of the hydraulic fracturing drilling hole plays a guiding role for crack propagation. After the hydraulic fracturing drill hole is cracked, the propagation of the resulting hydraulic crack, affected mainly by the regional stress field, will turn to other directions.

Key technologies and equipment for a fully mechanized top-coal caving operation with a large mining height at ultra-thick coal seams

Thick and ultra-thick coal seams are main coal seams for high production rate and high efficiency in Chinese coal mines, which accounts for 44 % of the total minable coal reserve. A fully mechanized top-coal caving mining method is a main underground coal extraction method for ultra-thick coal seams. The coal extraction technologies for coal seams less than 14 m thick were extensively used in China. However, for coal seams with thickness greater than 14 m, there have been no reported cases in the world for underground mechanical extraction with safe performance, high efficiency and high coal recovery ratio. To deal with this case, China Coal Technology ＆ Engineering Group, Datong Coal Mine Group, and other 15 organizations in China launched a fundamental and big project to develop coal mining technologies and equipment for coal seams with thicknesses greater than 14 m. After the completion of the project, a coal extraction method was developed for top-coal caving with a large mining height, as well as a ground control theory for ultra-thick coal seams. In addition, the mining technology for top-coal caving with a large mining height, the ground support technology for roadway in coal seams with a large cross-section, and the prevention and control technology for gas and fire hazards were developed and applied. Furthermore, a hydraulic support with a mining height of 5.2 m, a shearer with high reliability, and auxiliary equipment were developed and manufactured. Practical implication on the technologies and equipment developed was successfully completed at the No. 8105 coal face in the Tashan coal mine, Datong, China. The major achievements of the project are summarized as follows： 1. A top-coal caving method for ultra-thick coal seams is proposed with a cutting height of 5 m and a top-coal caving height of 15 m. A structural mechanical model of overlying strata called cantilever beam-articulated rock beam is established. Based on the model, the load resistance of the hydraulic support with a large mining height for top-coal caving method is determined. With the analysis, the movement characteristics of the top coal and above strata are evaluated during top-coal caving operation at the coal face with a large mining height. Furthermore, there is successful development of comprehensive technologies for preventing and controlling spalling of the coal wall, and the top-coal caving technology with high efficiency and high recovery at the top-coal caving face with a large mining height. This means that the technologies developed have overcome the difficulties in strata control, top-coal caving with high efficiency and high coal recovery, and enabled to achieve a production rate of more than 10 Mtpa at a single top-coal caving face with a large mining height in ultra-thick coal seams; 2. A hydraulic support with 5.2 m supporting height and anti-rockburst capacity, a shearer with high reliability, a scraper conveyor with a large power at the back of face, and a large load and long distance headgate belt conveyor have been successfully developed for a top-coal caving face with large mining height. The study has developed the key technologies for improving the reliability of equipment at the coal face and has overcome the challenges in equipping the top-coal caving face with a large mining height in ultra-thick coal seams; 3. The deformation characteristics of a large cross-section roadway in ultra-thick coal seams are discovered. Based on the findings above, a series of bolt materials with a high yielding strength of 500-830 MPa and a high extension ratio, and cable bolt material with a 1 × 19 structure, large tonnage and high extension ratio are developed. In addition, in order to achieve a safe roadway and a fast face advance, installation equipment for high pre-tension bolt is developed to solve the problems with the support of roadway in coal seams for top-coal caving operation with a large mining height; 4. The characteristics of gas distribution and uneven emission at top-coal caving face with large mining height in ultra-thick coal seams are evaluated. With the application of the technologies of gas drainage in the roof, the difficulties in gas control for high intensive top-coal caving mining operations, known as ＂low gas content, high gas emission＂, are solved. In addition, large flow-rate underground mobile equipment for making nitrogen are developed to solve the problems with fire prevention and safe mining at a top-coal caving face with large mining height and production rate of more than 10 Mtpa. A case study to apply the developed technologies has been conducted at the No. 8105 face, the Tashan coal mine in Datong, China. The case study demonstrates that the three units of equipment, i.e., the support, shearer and scraper conveyor, are rationally equipped. Average equipment usage at the coal face is 92.1%. The coal recovery ratio at the coal face is up to 88.9 %. In 2011, the coal production at the No. 8105 face reached 10.849 Mtpa, exceeding the target of 10 Mtpa for a topcoal caving operation with large mining height performed by Chinese-made mining equipment. The technologies and equipment developed provide a way for extracting ultra-thick coal seams. Currently, the technologies and equipment are used in 13 mining areas in China including Datong, Pingshuo, Shendong and Xinjiang. With the exploitation of coal resources in Western China, there is great potential for the application of the technologies and equipment developed.