水電站樞紐工程蓄水安全鑒定建設(shè)報(bào)告

2 2 2 3 3 3 6 7 8 9 14 20 ?？谝韵氯L(zhǎng)約300m）監(jiān)測(cè)、左岸邊坡（左岸邊坡是指溢洪道開(kāi)挖形穿河床最大斷面壩左0+130.0和壩左0+140.0；周邊縫變位大的右岸測(cè)點(diǎn)編號(hào)起始高程2002.8.159.2420032.275.156.167.38.159.2411877.8052330293031363946484921883.606273534353742455254553314557789941895.20385521024225151901.3028472162392742886377922424127731533271913.50236822324428432434281915.5246822724928833034791923.40542222462893323511929.628942142392853303501935.505265992162653133351941.4253676247296320053962312813061962.5061932162441966.530632151971.50351976.00721980.235951985.7071201989.74172211992.0031221994.730測(cè)點(diǎn)編號(hào)起始高程2002.8.159.2420032.275.156.167.38.159.2411878.002921232224293036394021883.50520213035363536424652545631889.22543579641895.40395721324825751901.40324920021724728629661907.24122624528432834171913.60236622524729133835381915.5257023225329634336291924.0052982262482953483652477922192462993533720546820123028734636426432092683273490202573203441950.3041552642881963.604722625531662142441970.60412261975.801980.238201985.2090211989.95597221994.4049231999.628242003.705556沉降值(mm)123456789202122232440035030025020015010050020028151107120720028151107120720030105311731827圖1-2ES2沉降分布圖234567備注25.923.626.125.324.429.79.3測(cè)點(diǎn)儀器編號(hào)1234567備注VS2-2306.822.1VS2-23057.8VS3-755.19.3s(cm)r(g/cm3)d(m)EV(Mpa)EV平均0+14044.32.2685160.4140.249.367168.960259791.3距壩軸線(m)rd(m)EV平均壩左0+1300-3027.42.266442221.7232.40252.2685413150+3027.52.2682242.60-3029.72.26183.6031.22.26282.80+3033.72.2666230.2037.32.2625150.91920高程1950高程觀測(cè)日期VS值ES值VS值ES值2003.02.050.08.28.22003.02.130.48.62003.02.220.68.82003.03.019.22003.03.069.92003.03.152.62003.03.243.62003.04.024.42003.04.114.82003.04.174.02003.05.88.207.57.52003.05.198.60.47.97.552003.05.298.920.53.69.752003.06.92003.06.1721.022.562003.6.2621.322.57.32003.7.1523.126.12003.7.2222.426.72003.8.324.627.4212003.8.1024.629.121.120.62003.8.2226.430.623.922.92003.8.2827.631.324.824.12003.9.420.929.131.926.425.12003.9.821.729.932.226.625.82003.09.1422.030.232.726.927.1.2003.09.2021.930.133.226.827.42003.09.2822.030.234.120.127.628.12003.10.0422.630.83521.629.128.42003.10.1222.030.235.52229.529.7位移量123ID1-130-456ID1-130-7量ID2-130-1ID2-130-2ID2-130-3ID2-130-4ID2-130-5ID2-230-1ID2-230-2ID2-230-3ID2-230-4ID2-230-5位移量ID3-075-1ID3-075-20+0ID3-75ID3-130-1ID3-130-20+0ID3-130-3ID3-230-1ID3-230-20+0ID3-230-3測(cè)點(diǎn)向下游移動(dòng)（測(cè)值為正隨著大壩填筑高度增高，上覆填筑重傾向。1950高程及以上觀測(cè)剖面各測(cè)點(diǎn)向下游作移動(dòng)。這種位移特xx大壩施工期壩體位移監(jiān)測(cè)，起到了監(jiān)測(cè)大壩在施工期的工作xx水電站右邊坡是指壓力鋼管斜坡及廠房開(kāi)挖形成的右側(cè)高邊化巖,抗剪強(qiáng)度極低，范圍大。右邊坡處在非常重要的特殊位置，其邊坡的穩(wěn)定性將直接關(guān)系到施工期安全，以及電站投產(chǎn)后的壓力鋼為監(jiān)測(cè)右邊坡的變形，確保施工期、運(yùn)行期的安全,在右邊坡用大地測(cè)量方法進(jìn)行表面位移監(jiān)測(cè)，布置13個(gè)測(cè)點(diǎn)；內(nèi)2002年埋設(shè)13套15米深多點(diǎn)位移計(jì),選用南瑞生產(chǎn)的型號(hào)RWM4-YS-09-3#M4-YS-10-2#M4-YS-17#M4-YS-082.6123.250-0.238M4-YS-092.1750.775M4-YS-102.0120.9500.725M4-YS-122.5504.3500.0120.162M4-YS-130.2752.1754.325M4-YS-1451.20047.63767.71227.975M4-YS-15-0.4620.6500.3250.350M4-YS-162.6683.5383.0500.838M4-YS-1730.87554.5006.462M4-YS-18-1.17512.3006.8125.400M4-YS-196.0625.6622.438M4-YS-2012.29910.8969.593M4-YS-2112.12543.35010.80031.012M4-YS-229.25113.5312.85813.402M4-YS-236.7406.5155.353M4-YS-2420.06819.98519.613M4-YS-259.50916.54614.3990.174表4-5右岸高邊坡位移量特征值△X(mm)△Y(mm)位移量（mm）TP-G-15.5-4.77.2TP-G-2-8.8TP-G-3-3.8TP-G-49.50.29.5TP-G-5-8.0TP-G-6-2.0TP-G-77.67.7TP-G-83.3-3.04.4TP-G-9-0.6TP-G-102.3TP-G-116.80.96.8TP-G-124.4-3.35.5TP-G-137.7TP-G-03、TP-G-04,實(shí)測(cè)位移值分別為7.2mm、10.7mm10.9mm、4.1.4.2在引0+121剖面,埋設(shè)四支多點(diǎn)位移計(jì),設(shè)計(jì)編號(hào)為4.1.4.3在引0+164剖面上,埋設(shè)3支多點(diǎn)位移計(jì)，設(shè)計(jì)編號(hào)：TP-G-06、TP-G-07,多點(diǎn)位移計(jì)M4-YS-15、M4-YS-16變形均在4.1.4.4樁號(hào)引0+207剖面埋設(shè)2支多點(diǎn)位移計(jì)，設(shè)計(jì)編號(hào)為M4-YS-17孔深11m、7m、3m的測(cè)點(diǎn)的變形值分別是30.87mm、4.1.4.5樁號(hào)0+187及圓弧段，埋設(shè)4支多點(diǎn)位移計(jì),設(shè)計(jì)編號(hào)為故變形大于M4-YS-23及M4-YS-25。外部變形測(cè)值分別為19.1mm4.1.4.7初步分析（1）在0+164剖面以上，以花崗巖為主，上游段右邊坡是基本穩(wěn)（2）0+164～207樁號(hào)：在引0＋207樁號(hào)所在剖面多點(diǎn)位移計(jì)M4-YS-17與同剖面處外部變形測(cè)點(diǎn)TP-G-08、TP-G-09變形增加，量。溢洪道位于樞紐左岸，進(jìn)口引渠槽段長(zhǎng)490.0m，底板高程200m左右，高程1996.0m，附近邊坡出現(xiàn)了切腳塌滑塊現(xiàn)象，新揭6666638左邊坡多點(diǎn)變位計(jì)特征值統(tǒng)計(jì)表M4-yxc-01~42022M4-yxc-5~8M4-yd-1~42.363.3303.7505.0202022M4-yd-5~82037M4-yd-9~120.4404.340-0.070-0.0502052M4-yq-1~44.10012.60013.32013.2702038M4-yq-5~815.78015.90016.1802022M4-yq-9~123.6008.7808.5709.4702007M4-yq-13~1617.3207.63019.4702040M4-yq-17~206.43010.53013.45015.15020224.2.3.3溢洪道引渠左邊坡外部變形可知，溢洪道引渠左邊坡向下游監(jiān)空方向位移10.2～16.7mm，其方位角為93.2°~145.9°。設(shè)安裝外部變形監(jiān)測(cè)點(diǎn)TP-Yd-01、02、03、04。多點(diǎn)位移計(jì)編號(hào)M4-Yd-01～04、M4-Yd-05～08、M4-Yd-09～12，從2003年7月28測(cè)點(diǎn)的變量最大值為5.02mm，而對(duì)應(yīng)四個(gè)高程的外