【正文】 pography of mine, the following measuring point distribution program : section of the fault on F13 layout measuring point two, F13 fault runs through 2 orebody, Blasting inevitable because of the slope stability。 (1)在對(duì)掛幫礦進(jìn)行爆破開(kāi)采的過(guò)程中，各測(cè)點(diǎn)的垂直方向振速與水平振速相差不大，并且其最大振動(dòng)速度遠(yuǎn)小于大冶鐵礦危險(xiǎn)邊坡的臨界振速值 22cm／ s，故可以認(rèn)為現(xiàn)行爆破參數(shù)是可行的。 (3)采用單排逐孔爆破法來(lái)盡可能減小單響最大藥量。 監(jiān)測(cè)設(shè)備 采用礦山現(xiàn)有設(shè)備，監(jiān)測(cè)儀器為瑞士徠卡 TPS400電子全站儀，其精度為 2+2 106。 由于掛幫礦賦存條件的特殊性，其開(kāi)采一直是采礦界較為頭痛的問(wèn)題，它涉及地質(zhì)學(xué)、采礦工程、巖土工程、工程安全與可靠性等多學(xué)科內(nèi)容。采出邊坡上的掛幫礦，屬?gòu)?qiáng)采行為，有兩方面的安全問(wèn)題，一是采動(dòng)條件下 邊坡保留巖體自身的穩(wěn)定，其次是回采施工過(guò)程中的作業(yè)安全。 監(jiān)測(cè)要求 監(jiān)測(cè)周期為每月一次，如遇雨季或發(fā)現(xiàn)異常位移量則加密觀測(cè)。即每次爆破一排炮孔，并增大前后段起爆延期時(shí)間，起始就用較大段別的雷管，跳段設(shè)置，如： 1 13等。 (2)爆破主振頻率遠(yuǎn)大于邊坡的自振頻率，因此邊坡不 易破壞。 ② blasting near the edge on the vertical layout help three measuring points, Research blasting near the slope of the vibration and shock blasting laws to help ensure the stability edge requirements. Monitoring Analysis According to the 2 ore mining process. From 2021 09 ~ 202111 blasting vibration on the right of 16 onsite monitoring, made a hanging wall ore in the process of excavation blasting vibration data. Opencast monitoring method based on the characteristics of the establishment of calculated results forms of monitoring data for statistical analysis can be drawn. 2 in the hanging wall 14 mining process blasting vibration has the following characteristics. (1) in the hanging wall ore mining blasting process, the measuring point, the vertical velocity and direction of the level of vibration velocity close, and the largest of its vibration is much less than INGENIOUS dangerous slope of the critical velocity value of 22 cm / s, Therefore it that the current blasting parameters is feasible. (2) Blasting vibration frequency slope than the natural frequencies, it is not easy slope damage. (3) The duration of blasting vibration is generally less than 500 ms. (4) Geological conditions in certain circumstances, distance and amount of drugs affecting the size of blasting vibration of the main factors, and the impact of distance than the dosage sensitive. 4, the conclusion (1) High and steep slope stability. High on the slope to help ore mining linked to the problem is necessary, slope stability monitoring the actual, make explicit purpose of monitoring pliance with the actual design and build realtime monitoring system to ensure slope stability. (2) Bursting of the high and steep slope should not be neglected, should carry out damping control, and on the basis of need, blasting vibration for realtime monitoring to ensure that safe mining. (3) The slope deformation monitoring and vibration monitoring, according to geological and engineering 15 needs, and deployed monitoring points, focused, as a prehensive, ensure slope stability. 16 。 (4)在地質(zhì)條件一定的情況下，距離和藥量是影響爆破震動(dòng)大小的主要因素，并且距離的影響較藥量敏感。 爆破震動(dòng)監(jiān)測(cè) 爆破震動(dòng)監(jiān)測(cè)的內(nèi)容包括地表質(zhì)點(diǎn)振動(dòng)速度、位移、加速度等。 監(jiān)測(cè)數(shù)據(jù)及分析 根據(jù) 2礦體的開(kāi)采進(jìn)度，從 202109～ 2021－ 11月對(duì)邊坡進(jìn)行了變形監(jiān)測(cè)，取得 了掛幫礦開(kāi)挖過(guò)程中的邊坡變形數(shù)據(jù)。 2 邊坡變形安全監(jiān)測(cè) 高陡邊坡在掛幫礦開(kāi)采期間受到很多因素的影響，在這些因素的作用下，巖體可能發(fā)生破壞，導(dǎo)致邊坡變形，其最極端的結(jié)果是邊坡喪失穩(wěn)定，產(chǎn)生滑坡。目前，東露天采場(chǎng)已經(jīng)閉坑，轉(zhuǎn)入了地下開(kāi)采，但其邊幫區(qū)域存在有大量的掛幫礦體，為回收資源，需要對(duì)北幫的 2掛幫礦體進(jìn)行擴(kuò)幫開(kāi)采。其中， 6測(cè)點(diǎn)組成主觀 測(cè)線(xiàn)，控制采區(qū)正上方的變形， 8測(cè)點(diǎn)控制 F 。用光面爆破，盡可能削弱生產(chǎn)爆破對(duì)保留邊坡的危害。 監(jiān)測(cè)結(jié)果分析 根據(jù) 2礦體的開(kāi)采過(guò)程，從