【正文】 ined as follows: Any person, irrespective of background and formal 13 training, whose sole responsibility is the management of seismic systems and / or the analysis and evaluation of seismic data originating from mining operations. Mine seismologists were, with the exception of two corporate seismologists, employed by the mine and integrated into the mine’s rock mechanics departments. This setup considering seismology part of rock engineering has developed from the perception that seismic information is best utilised in the department responsible for mine layout and support design. It ignores the fact that, academically, seismology forms part of geophysics, which is in some countries considered part of the geology discipline (USA) and in others part of the science of physics (Germany and France). Instead of being integrated with rock engineering, mine seismologists could have joined the prospecting divisions of mining houses and then be seconded to mines as the need arises. This would have opened up more career prospects and may have retained some of the seismologists in the field, preventing the exodus that took place in the second half of the 1990s. By mid 2021 AngloGoldLtd. (now AngloGoldAshanti) had lost all of its mine seismologists bar one on corporate level. Out of the original 24, eight changed their working field and four left the country. Gold Fields Ltd. retained three of its six experts, plus one on corporate level. Of those leaving the mines, six individuals joined existing or opened up their own consultancies, all of which are still in business today, three years later. By mid 2021, the number of minebased and employed seismologists stood at four, only one of which is on a mine not previously served in this way. The number of individuals in consultancies has recently increased to ten due to demand by Harmony GM Co. Ltd. Generally speaking, consultancies have taken over the role of service providers in the field, operating seismic works, managing the gathered data and analy sing and evaluating data for most rock burst prone mines. In this environment mine employed rock engineers bee primary customers of seismology services. They are in charge of controlling the contracts with service providers, but also carrying out basic analysis of seismic data with specialized software tools that are A closer look at the various functions executed during seismic data interpretation reveals requirements for senior rock engineering personnel whose responsibilities include seismology related tasks. There are four discernible task groups that rock engineers have to cover in such an environment: 1) Input into mine planning: Design bracket pillars for seismically active structures。 由以上公式可推出提升電動機等值容量： 6 1 20P1000TmdjdF dtvT?? ? 式（ ） 式中 mv —— 提升系統(tǒng)最大提升速度； j? —— 提升系統(tǒng)效率取 ； 對于大龍煤礦有： ? ； 提升系統(tǒng)等效力 dF 考慮 到減速階段減速方式及制動方式，減速階段在系統(tǒng)等效力計算時不應(yīng)計在其中，因此等效力可以按式（ ）計算： 22 2 2 2 22 00 1 1 2 2 2 20 0 1 22222554445?2 2 3 22XT FF F F F F F FF d t t t tFFFF tt? ? ? ?? ? ? ?? ? ? ??? ???? 式（ ） 式中 iF —— 提升系統(tǒng)各初始階段拖動力（ 0 1 2 3 5i? 、 、 、 、 ）； 39。 3 2煤礦主井提升設(shè)備初步分析 煤礦主井提升系統(tǒng)結(jié)構(gòu) 大龍煤礦礦井深 460 米，年產(chǎn)量高達 100 萬噸，屬于大型煤礦。礦井提升設(shè)備在礦山生產(chǎn)的全過程中占有極其重要的地位。 電動機的功率估算 .................................... 錯誤 !未定義書簽。 箕斗容量計算 ........................................ 錯誤 !未定義書簽。 本設(shè)計主 要對礦井主井生產(chǎn)所用的提升設(shè)備進行的一次合理選型。 天輪的選擇計算 ......................................... 錯誤 !未定義書簽。 提升速度圖分析 ...................................... 錯誤 !未定義書簽。 19 世紀(jì)，歐洲率先出現(xiàn)蒸汽機，資本主義國家采用了蒸汽拖動的礦井提升設(shè)備。該系統(tǒng)核心部分為單繩纏繞式提升機。iF —— 提升系統(tǒng)各終止階段拖 動力（ 0 1 2 3 5i? 、 、 、 、 ）； 經(jīng)計算有 : 2 2 2 220222 2 2 292116177 116062 149162 143550 * 3 149215 1022427 10 NXT F dts??? ? ? ? ???????? ? ? ?? ? ?式（ ） 提升機等效力為： 2 90 4 2 7 1 0 8 9 . 0 9 8 k N5 3 . 9XTd dF d tF T? ?? ? ? 式（ ） 電動機容量為 201000 * 81 .8 2310 00 * 0. 85 15 59 .4 5xTmdjdF dtvPTkW????? 式（ ） 電動機容量的驗算 1） 按電動機允許發(fā)熱條件 / 1dPP?? 式（ ） 7 即有 %的備份容量。 optimal face layout and mining sequence, production rate and face configuration to minimise seismic energy emission。筆者這里介紹訓(xùn)練課程和與那些略述的關(guān)于南非的礦業(yè)工程顧問和一些礦井的內(nèi)容。 2021 年中， AngloGold 公司 (現(xiàn) AngloGoldAshanti) 已。從事實來看，一個深層次的影響會產(chǎn)生。通過這段時間的設(shè)計，使我能更加熟練的運用機械設(shè)計方面的有關(guān)知識，更好的運用 Auto CAD 軟件，以及查表和閱覽專業(yè)工具書籍的能力。 電動 機拖動力矩 M 和電動機定子的電流有一定的關(guān)系，當(dāng)電動機接入電網(wǎng)電壓不變時，在單位時間內(nèi)電動機線圈內(nèi)產(chǎn)生的熱量為： dq kMdt? 式（ ） 式中 M —— 電動機軸上的變化力矩。 事物在不斷的發(fā)展，礦井提升設(shè)備也在不斷 的發(fā)展，其類型、結(jié)構(gòu)等都在日新月異地向前發(fā)展。它 溝通礦井上下的紐帶 。 電動機的計算轉(zhuǎn)速 .................................... 錯誤 !未定義書簽。 箕斗的選擇設(shè)計 ......................................... 錯誤 !未定義書簽。通過已知條件合理計算選出箕斗、鋼絲繩、提升機、天輪、電動機等設(shè)備。 煤礦提升機選型計算 ..................................... 錯誤 !未定義書簽。 運動學(xué)相關(guān)計算 ...................................... 錯誤 !未定義書簽。隨著時代的發(fā)展，后來又出現(xiàn)了電動機和電力拖動機。 煤礦主井 提升系統(tǒng)結(jié)構(gòu)圖如圖 21。 提升設(shè)備的電耗及效率計算 0 0 0 0 1 1 1 2 2 2 4 4 41 1 1 1( ) ( ) ( ) ( )2 2 2 23 2 1 1 .5 k N *XT F d t F F t F F t F F t F F ts? ? ? ?? ? ? ? ? ? ? ? ?? 式（ ） 0333600 *16 .2 * 321 1 *10 360 0 * * 10 kW hXTmjdv FdtW??????? ? ? 式（ ） 式中 d? —— 提升電動機效率，為 ； j? —— 減速器效率，取 。M Systems and in petition to ISS International, whose main platform at that time was Unix/Linux. In 1998, the Council for Geoscience in Pretoria released SeisHazM [Kijko etal, 1998], a specialised tool for static seismic hazard assessment. This 1software was the main deliverable of SIMRAC project GAP517 a