2023学年完整公开课版两井定向

地铁行业知识培训

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力信测量（上海）有限公司

两井定向内容回顾一井定向连接三角形示意图ABCDEA′B′C′D′E′一井定向

占用井筒时间长，影响正常作业垂线距离近，投向误差大两井定向＞30m

知识引入4123布设地面、井下连接导线投点内业计算及精度分析地面、井下连接导线测量（重点、难点）内容安排知识引入MN九号井新三井淮南某矿区两井定向已知数据：任务实施导线测量

投点12345ⅢAMNⅡⅠB布设导线A′B′测角+量边九号井新三井1.传递点不多于3个。2.导线尽可能沿两井连线方向布设，并最短。3.检查：钢丝自由悬挂，重锤未触筒底。4.地面按一级/二级；井下按二级/三级。任务实施（重难点讲解）

地面导线

角号水平角

°′″

地面导线

边号水平距离

/mMN3522120.4M-Ⅰ79.9566ⅠⅠM1412853.0Ⅰ-Ⅱ75.9181ⅡⅡⅠ1744734.0Ⅱ-Ⅲ63.0406ⅢⅡⅠ2431822.4Ⅱ-A9.1360AⅢⅡ2595413.6Ⅲ-B25.5264B

地下导线

角号水平角

°′″

边号水平距离

/m1A′862820.2A′-115.931221-237.9229211550855.232-313.8807321160835.543-417.2131433281134.354-519.6327542013156.9B′5-B′13.7574表4-2地下导线测量成果（第1次）表4-3地下导线测量成果（第2次）

地下导线

角号水平角

°′″

边号水平距离

/m1A′863313.0A′-115.928621-237.9229211550855.232-313.8807321160835.543-417.2131433281134.354-519.6327542012944.9B′5-B′13.7594淮南某矿区两井定向已知数据：表4-1地面导线测量成果任务实施表4-4两井定向地面连接导线坐标计算点号水平角

°′″方位角

°′″水平距离/m坐标增量坐标点号测站视准点△x△yxyNM

3471529.5

610091.024507901.396MMN3522120.41593649.979.9566-74.948627.8525610010.75507929.2485ⅠⅠⅠM1412853.01210542.975.9181-39.208865.0094609976.8666507994.2579ⅡⅡⅡⅠ2431822.41842405.39.1360-9.1090-0.7011609967.7575507993.5568AAⅠⅡ

1210542.9

609976.8666507994.2579ⅡⅡⅠ1744734.01155316.963.0406-27.524456.7144609949.3422508050.9723ⅢⅢⅢB2595413.6195473.0525.5264-24.5630-6.9468609924.7792508044.0255B起算数据2.坐标正算3.坐标反算1.方位角推算

笔记任务实施ⅢMNⅡⅠABA′12345B′无定向导线笔记情况2：从一个已知点出发，另端也是一个已知点。情况1：从一条已知边出发，闭合到另个已知点上。——不能进行方向检核任务实施表4-5按假定坐标系统进行井下连接导线的坐标计算点号水平角

°′″方位角

°′″水平距离/m坐标增量坐标点号测站视准点△x△yxyA′1

0000015.931215.9312000A′+15.9312011A′862820.22662820.237.9229-2.3335-37.8510+13.5977-37.851022211550855.22413715.413.8807-6.5975-12.2126+7.0002-50.063633321160835.51774550.917.2131-17.2000+0.6715-10.1998-49.392144433281134.33255725.219.632716.2680-10.9907+6.0682-60.382855542013156.93472922.113.757413.4307-2.9801+19.4989-63.3629B′B′3.坐标反算

笔记2.坐标正算

1.方位角推算

任务实施笔记ⅢMNⅡⅠABA′12345B′任务实施表4-5按假定坐标系统进行井下连接导线的坐标计算点号水平角

°′″方位角

°′″水平距离/m坐标增量坐标点号测站视准点△x△yxyA′1

0000015.931215.9312000A′+15.9312011A′862820.22662820.237.9229-2.3335-37.8510+13.5977-37.851022211550855.22413715.413.8807-6.5975-12.2126+7.0002-50.063633321160835.51774550.917.2131-17.2000+0.6715-10.1998-49.392144433281134.33255725.219.632716.2680-10.9907+6.0682-60.382855542013156.93472922.113.757413.4307-2.9801+19.4989-63.3629B′B′+203°18′44.2″+203°18′44.2″+203°18′44.2″+203°18′44.2″+203°18′44.2″+203°18′44.2表4-6按地面坐标系统进行井下连接导线的坐标计算点号水平角

°′″方位角

°′″水平距离/m坐标增量坐标点号测站视准点△x△yxyA′1

2031844.215.9312+6-7609967.7575507993.5568A′-14.6306-6.3046609953.1275507987.251511A′862820.21094704.437.9229+12-15609940.2924508022.934422-12.836335.6844211550855.2845559.613.8807+5-6609941.5188508036.760333+1.2259+13.8265321160835.5210435.117.2131+6-7609957.5810508042.949744+16.0616+6.1901433281134.33281134.319.6327+7-8609938.2923508046.604455-19.2894+3.6555542013156.92013156.913.7574+5-6609924.7729508044.0255B′B′-13.5136-2.5793

-42.9824+50.4736

笔记任务实施（精度分析）表4-3地下导线测量成果（第2次）

地下导线

角号水平角

°′″

边号水平距离

/m1A′863313.0A′-115.928621-237.9229211550855.232-313.8807321160835.543-417.2131433281134.354-519.6327542012944.9B′5-B′13.7594表4-7第二次井下测量及计算成果点号水平角

°′″方位角

°′″水平距离/m坐标点号测站视准点xyA′1

2031856.015.9286609967.7654507993.5361A′953.1289987.252311A′863313.01094709.037.9229940.2929508022.935122211550855.2845604.213.8807941.5190036.761133321160835.5210439.717.2131957.5809042.950944433281134.31691614.019.6327938.2920046.605355542012944.91904558.913.7594609924.7752508044.0345B′B′第一次计算坐标点号xy609967.7575507993.5568A1609953.1275507987.25151609940.2924508022.93442609941.5188508036.76033609957.5810508042.94974609938.2923508046.60445609924.7729508044.0255B1表4-8两井定向井下导线的最终值

点号水平角

°′″方位角

°′″水平距离/m坐标点号测站视准点xy12

109470737.923609953.128507987.2521609940.293508022.9352211550855.284560213.881609941.519508036.76133321160835.521043717.213609957.581508042.950444332811