四等水準(zhǔn)測(cè)量-水準(zhǔn)路線測(cè)量《數(shù)字測(cè)圖》教學(xué)課件

四等水準(zhǔn)測(cè)量-水準(zhǔn)路線2、四等水準(zhǔn)測(cè)量外業(yè)觀測(cè)操作程序3、外業(yè)觀測(cè)及記錄4、水準(zhǔn)測(cè)量成果整理示意圖目錄1、任務(wù)描述5、水準(zhǔn)路線高差閉合差調(diào)整與高程計(jì)算1任務(wù)簡(jiǎn)述：某測(cè)區(qū)沒(méi)有已知高程點(diǎn)，為進(jìn)行測(cè)圖工作，需進(jìn)行高程引測(cè)，在該測(cè)區(qū)以外南東方向上有一個(gè)已知水準(zhǔn)點(diǎn)BM1，點(diǎn)位保存完好，其高程HBM1=1088.254m，根據(jù)已知水準(zhǔn)點(diǎn)的情況，擬定采用閉合水準(zhǔn)路線進(jìn)行水準(zhǔn)點(diǎn)的加密，根據(jù)現(xiàn)場(chǎng)的需要，在地面上選定了1、2、3三個(gè)待測(cè)水準(zhǔn)點(diǎn)，并用木樁在地面標(biāo)定出來(lái)，即組成了閉合水準(zhǔn)路線BM1→1→2→3→BM1。閉合準(zhǔn)路線：BM1→1→2→3→BM14個(gè)測(cè)段測(cè)區(qū)界限1BM12HBM1=1088.254m3四等水準(zhǔn)測(cè)量外業(yè)觀測(cè)操作程序2尺常數(shù)：4.687尺常數(shù)：4.787雙面水準(zhǔn)尺尺墊儀器及材料配置：DS3型水準(zhǔn)儀1臺(tái)，水準(zhǔn)尺1對(duì)，尺墊1對(duì)，記錄板1個(gè)，四等水準(zhǔn)測(cè)量記錄手薄1份。1四等水準(zhǔn)測(cè)量測(cè)站觀測(cè)操作程序2BM1TP1后

尺黑面：上中下三絲后

尺紅面：中絲前

尺黑面：上中下三絲前

尺紅面：中絲測(cè)站編號(hào)后尺上絲前尺上絲方向及尺號(hào)標(biāo)尺讀數(shù)K+黑-紅高差中數(shù)備注下絲下絲后距前距黑紅視距差累計(jì)差1

后-前

2

后-前

1.3751.4901.2451.3611.3105.9951.4256.21312.90.113.00.1-0.115-0.2182-13-0.1165后6前7后7前61.4110.9361.2270.7621.3196.1070.8495.53617.41.118.41.00.4700.571-10-10.4705BM1|1外業(yè)觀測(cè)及記錄3測(cè)站編號(hào)后尺上絲前尺上絲方向及尺號(hào)標(biāo)尺讀數(shù)K+黑-紅高差中數(shù)備注下絲下絲后距前距黑紅視距差累計(jì)差11.4561.556后61.265.9461-0.09951.0641.16前71.3586.147-239.239.6后-前-0.098-0.2013-0.4-0.421.3561.398后71.1585.946-1-0.03850.960.994前61.1965.885-239.640.4后-前-0.0380.0611-0.8-1.231.2080.957后61.1065.79120.24751.0040.759前70.8585.644120.419.8后-前0.2480.14710.6-0.641.4110.936后71.3196.107-10.47051.2270.762前60.8495.536018.417.4后-前0.470.571-110.4校核計(jì)算BM12HBM1=1088.254m31hBM1-1=0.580ml=234.8m外業(yè)觀測(cè)示意圖BM1|A記錄表格外業(yè)觀測(cè)略圖117.6117.2234.80.40.580＋＋＋=＋＋＋=＋＋＋=Σ后距Σ前距Σ后距+Σ前距Σ后距-Σ前距Σh1|2外業(yè)觀測(cè)及記錄3BM12HBM1=1088.254m31hBM1-1=0.580ml=234.8m外業(yè)觀測(cè)示意圖BM1|A記錄表格外業(yè)觀測(cè)略圖測(cè)站編號(hào)后尺上絲前尺上絲方向及尺號(hào)標(biāo)尺讀數(shù)K+黑-紅高差中數(shù)備注下絲下絲后距前距黑紅視距差累計(jì)差11.6561.5564.6871.4606.14610.10101.2641.164.7871.3586.146-139.239.6后-前0.1020.0002-0.4-0.421.4561.3984.7871.2496.03420.05151.0420.9944.6871.1965.884-141.440.4后-前0.0530.15031.00.631.2561.3654.6871.1405.8261-0.11001.0231.1344.7871.2506.036123.323.1后-前-0.110-0.21000.20.841.7651.3984.7871.5606.34520.36201.3540.9944.6871.1965.884-141.140.4后-前0.3640.46130.71.551.3241.4354.6871.2165.9021-0.10951.1081.2144.7871.3256.113-121.622.1后-前-0.109-0.2112-0.51.0測(cè)站編號(hào)后尺上絲前尺上絲方向及尺號(hào)標(biāo)尺讀數(shù)K+黑-紅高差中數(shù)備注61.6451.7544.7871.4826.2690-0.10301.3181.4144.6871.5846.272-132.734.0后-前-0.103-0.0041-1.3-0.3Σ199.3199.60.192398.9-0.3h1-2=0.192ml=398.9mΣ后距+Σ前距Σh2|3外業(yè)觀測(cè)及記錄3BM12HBM1=1088.254m31hBM1-1=0.580ml=234.8m外業(yè)觀測(cè)示意圖BM1|A記錄表格外業(yè)觀測(cè)略圖測(cè)站編號(hào)后尺上絲前尺上絲方向及尺號(hào)標(biāo)尺讀數(shù)K+黑-紅高差中數(shù)備注下絲下絲后距前距黑紅視距差累計(jì)差11.3421.5564.6871.1835.8691-0.21801.0231.2454.7871.4016.187131.931.1后-前-0.218-0.31800.80.821.3561.2454.7871.1995.98600.11501.0420.9224.6871.0845.772-131.432.3后-前0.1160.2141-0.9-0.131.2091.3654.6871.0945.7801-0.15600.9781.1344.7871.2506.036123.123.1后-前-0.156-0.25600-0.141.3451.8764.7871.1905.9761-0.53801.0341.5774.6871.7276.415-131.129.9后-前-0.537-0.43921.21.151.8941.4554.6871.7196.40510.43301.5431.1144.7871.2856.073-135.134.1后-前0.4340.33221.02.1測(cè)站編號(hào)后尺上絲前尺上絲方向及尺號(hào)標(biāo)尺讀數(shù)K+黑-紅高差中數(shù)備注61.3451.6544.7871.2346.0201-0.30101.1231.4144.6871.5346.222-122.224.0后-前-0.300-0.2022-1.80.3Σ174.8174.5-0.665349.30.3h1-2=0.192ml=398.9mΣ后距+Σ前距Σhh2-3=-0.665ml=349.3m3|BM1外業(yè)觀測(cè)及記錄3BM12HBM1=1088.254m31hBM1-1=0.580ml=234.8m外業(yè)觀測(cè)示意圖BM1|A記錄表格外業(yè)觀測(cè)略圖測(cè)站編號(hào)后尺上絲前尺上絲方向及尺號(hào)標(biāo)尺讀數(shù)K+黑-紅高差中數(shù)備注下絲下絲后距前距黑紅視距差累計(jì)差11.8761.5564.6871.6566.34210.31951.4351.1164.7871.3366.122144.144后-前0.3200.22000.10.121.4561.2454.7871.2496.03600.21301.0420.8264.6871.0365.724-141.441.9后-前0.2140.3121-0.5-0.431.1861.4314.6871.0325.7181-0.25050.8781.1344.7871.2836.069130.829.7后-前-0.251-0.35001.10.741.3551.7664.7871.1905.9761-0.40801.0241.4274.6871.5976.285-133.133.9后-前-0.407-0.3092-0.8-0.1Σ149.4149.5-0.126298.9-0.1h1-2=0.192ml=398.9mΣ后距+Σ前距Σhh2-3=-0.665ml=349.3mh3-BM1=-0.126ml=298.9m水準(zhǔn)測(cè)量成果整理示意圖4BM12HBM1=1088.254m31hBM1-1=0.580ml=234.8mh1-2=0.192ml=398.9mh2-3=-0.665ml=349.3mh3-BM1=-0.126ml=298.9m水準(zhǔn)路線高差閉合差調(diào)整與高程計(jì)算測(cè)段編號(hào)點(diǎn)名測(cè)段長(zhǎng)度（km）實(shí)測(cè)高差（m）改正數(shù)（m）改正后高差（m