1、湖南省-洞庭湖區安澧蓄洪垸堤防加固工程 實施項目施工總承包水 泥 土 攪 拌 樁 檢 測 報 告目 錄一、前言4二、項目概況4三、工程基本情況與地質概述6四、檢測依據及評定標準7五、現場檢測7六、檢測結果與質量評定11七、附圖表17一、前言我公司受湖南華緯水電工程公司的委托，承擔湖南省洞庭湖區安澧蓄洪垸堤防加固工程2013年度實施項目設計施工總承包的水泥土攪拌樁防滲墻檢測任務，試驗方法采用鉆孔注水試驗法，用以檢測攪拌樁防滲墻的滲透系數是否達到設計規范要求，檢測孔位由業主監理現場確定，檢測數量滿足設計要求，外業工作于2014年06月04日進行。二、項目概況工程名稱湖南省洞庭湖區安澧蓄洪垸堤防加固

2、工程2013年度實施項目設計施工總承包建設單位委托單位勘察單位施工單位監理單位質量監督站樁型水泥土深層攪拌樁設計強度等級滲透系數510-7cm/s檢測日期2014.6.4-2014.7.51三、工程基本情況與地質概述3.1 工程基本情況安澧大垸位于安鄉縣北部，四面環水，北與湖北公安縣黃金大垸、西與澧縣西官垸、東南與安造和安保垸隔河相望。安澧垸夾于松滋河東支與松滋河中支之間，平面上呈南北向帶狀展布。地勢北高南低，地形平坦開闊，人工溝渠及封堵的啞河縱橫交錯、大小湖泊星羅棋布。安澧垸系長江洪水入湖要道，防洪位置險要，有安鄉的北大門之稱。安澧垸屬洞庭湖區24個蓄洪垸之一，蓄洪容積9.2億m3。安澧垸保

3、護面積122.73km2，其中耕地面積9.2萬畝。行政區劃涉及焦圻、安福、安凝3個鄉鎮的43個村，保護人口7.37萬人，其中農業人口6.52萬人，非農業人口0.84萬人。本次湖南省洞庭湖區安澧蓄洪垸堤防加固工程2013年度實施項目設計施工總承包主要工程項目有：堤身加培、堤身護坡、水泥土防滲墻、粉噴樁抗滑、松木樁固腳、拋石固腳、堤頂防汛砼路面、上堤坡道和上堤踏步等工程，安澧垸堤防工程級別為3級。3.2 工程地質情況安澧垸位于洞庭湖坳陷盆地西部安鄉地塹之中，地勢北高南低，相對高差2-3m，垸內地面標高30.5-33.5。地形平坦開闊，人工溝渠及封堵的啞河縱橫交錯，大小湖泊星羅棋布，除東北角見有零星

4、殘存的級階地外，其他地段均為典型的沖積、湖積型地貌。垸內地表出露地層以第四系全新統沖、湖積物（Q4al+1）為主，部分地段為第四系近代河流沖積堆積物（Q4al），下覆地層為第四系中更新統河流階地堆積物（Q2al）。四、檢測依據及評定標準4.1、檢測依據：、水利水電工程注水試驗規程SL345-2007 、水利水電建設工程驗收規范SL223-2008 、水利水電工程施工質量檢驗與評定規程SL176-2007 、設計文件及圖紙4.2、設計合格標準水泥土攪拌樁防滲墻：滲透系數K5.010-7cm/s五、現場檢測5.1、試驗時間：2014年06月04日2014年07月05日5.2、檢測頻率：按設計要求沿

5、堤每300m布設孔位5.3、檢測方法：采用鉆孔注水試驗檢測方法5.4、檢測設備、儀器：(1)、鉆進設備：GY-1型工程鉆機，108mm合金鉆頭(2)、供水設備：150泵(3)、量測設備：0.25級壓力表、LWY-15型渦輪流量計、量筒、秒表、SWJ-90型鋼尺水位計、米尺等(4)、止水設備：橡膠止水栓塞、套管5.5、試驗流程(1)、現場檢測孔布置根據相關規范和設計要求，由監理單位、業主共同確定位置進行鉆孔，共計53個檢測孔。各檢測孔的布置如下表1表二。、鉆孔鉆孔釆用108mm合金鉆頭鉆進。、洗孔壓水試驗前進行洗孔，洗孔釆用壓水法進行，洗孔時鉆具下至孔底，流量應達到水泵最大出力，洗孔應至回水清潔

6、，肉眼觀察無巖粉時方可結束。、試段隔離根據規范要求及現場實際施工情況，本次注水試驗自上而下分段隔離進行。注水試驗釆用套管進行試段隔離止水。 (5)、地下水位觀測試驗前進行地下水位觀測，確定試驗水頭和壓力計算零線。(6)、壓力和流量觀測注水試驗流量開始每隔5min量測一次，連續量測5次，以后每隔20min量測一次，當連續2次量測的注入流量之差不大于最后一次的10%時，試驗結束，取最后一次注入流量作為計算值。 (7)、封孔試驗完成后，按相關規定和技術要求進行封孔。25鉆孔注水試驗檢測孔統計表一檢測孔編號檢測孔位置（樁號）檢測孔孔深（m)檢測孔部位ZK-01K60+98015.2水泥土深層攪拌樁ZK

7、-02K61+28014.6水泥土深層攪拌樁ZK-03K61+58012.5水泥土深層攪拌樁ZK-04K61+88012.4水泥土深層攪拌樁ZK-05K62+18012.5水泥土深層攪拌樁ZK-06K62+48012.5水泥土深層攪拌樁ZK-07K62+78014.4水泥土深層攪拌樁ZK-08K63+08014.3水泥土深層攪拌樁ZK-09K63+38014.4水泥土深層攪拌樁ZK-10K63+68014.3水泥土深層攪拌樁ZK-11K63+98014.4水泥土深層攪拌樁ZK-12K64+28014.2水泥土深層攪拌樁ZK-13K66+48011.6水泥土深層攪拌樁ZK-14K66+78011

8、.4水泥土深層攪拌樁ZK-15K67+08011.5水泥土深層攪拌樁ZK-16K67+38013.4水泥土深層攪拌樁ZK-17K67+68013.5水泥土深層攪拌樁ZK-18K67+98015.5水泥土深層攪拌樁ZK-19K68+28012.6水泥土深層攪拌樁ZK-20K68+58012.5水泥土深層攪拌樁ZK-21K68+88012.6水泥土深層攪拌樁ZK-22K69+18012.5水泥土深層攪拌樁ZK-23K69+48012.6水泥土深層攪拌樁ZK-24K0+05015.4水泥土深層攪拌樁ZK-25K3+85013.5水泥土深層攪拌樁ZK-26K4+15013.4水泥土深層攪拌樁ZK-27

9、K4+45013.4水泥土深層攪拌樁鉆孔注水試驗檢測孔統計表二檢測孔編號檢測孔位置（樁號）檢測孔孔深（m)檢測孔部位ZK-28K8+08012.6水泥土深層攪拌樁ZK-29K8+38012.4水泥土深層攪拌樁ZK-30K8+68014.6水泥土深層攪拌樁ZK-31K8+98014.6水泥土深層攪拌樁ZK-32K14+9007.7水泥土深層攪拌樁ZK-33K15+1009.5水泥土深層攪拌樁ZK-34K15+4009.7水泥土深層攪拌樁ZK-35K15+70012.4水泥土深層攪拌樁ZK-36K16+00014.2水泥土深層攪拌樁ZK-37K16+30014.4水泥土深層攪拌樁ZK-38K16+

10、60011.6水泥土深層攪拌樁ZK-39K16+90013.3水泥土深層攪拌樁ZK-40K17+20013.4水泥土深層攪拌樁ZK-41K17+50015.3水泥土深層攪拌樁ZK-42K17+80015.3水泥土深層攪拌樁ZK-43K18+10015.5水泥土深層攪拌樁ZK-44K22+80010.5水泥土深層攪拌樁ZK-45K23+00012.5水泥土深層攪拌樁ZK-46K23+30014.3水泥土深層攪拌樁ZK-47K23+80014.4水泥土深層攪拌樁ZK-48K24+10015.4水泥土深層攪拌樁ZK-49K24+40015.4水泥土深層攪拌樁ZK-50K24+70015.2水泥土深層

11、攪拌樁ZK-51K58+12014.6水泥土深層攪拌樁ZK-52K58+42014.4水泥土深層攪拌樁ZK-53K58+72014.5水泥土深層攪拌樁六、檢測結果與質量評定1、計算方式（一）、常水頭注水試驗滲透系數K=(A=lg)滲透系數K=(A=lg)根據水利水電工程注水試驗規程（SL345-2007):（1）、當試段位于地下水位以下時、當試段位于地下水位以上時 滲透系數K=lg式中：K一試驗土層的滲透系數，cm/s;Q一注入流量，L/min;H試驗水頭，cm；等于試驗水位與地下水位之差；A形狀系數；按規程附錄B選用；L試段長度，cm; r鉆孔內半徑，cm。2、檢測孔鉆孔注水試驗檢測結果詳見

12、下表。鉆孔注水試驗檢測結果匯總表一孔號檢測內容試段試段長度(m)實測值設計值質量評定ZK-01攪拌樁防滲墻0107.84. 2710-7cm/sk5.010-7 cm/s合格027.815.23.1810-7cm/sk5.010-7 cm/s合格ZK-02攪拌樁防滲墻0106.54.5910-7cm/sk5.010-7 cm/s合格026.512.52. 3710-7cm/sk5.010-7 cm/s合格ZK-03攪拌樁防滲墻0106.03.9510-7cm/sk5.010-7 cm/s合格026.012.53.3110-7cm/sk5.010-7 cm/s合格ZK-04攪拌樁防滲墻0107.

13、14. 9110-7cm/sk5.010-7 cm/s合格027.112.44.3910-7cm/sk5.010-7 cm/s合格ZK-05攪拌樁防滲墻0107.53.8210-7cm/sk5.010-7 cm/s合格027.512.52. 9710-7cm/sk5.010-7 cm/s合格ZK-06攪拌樁防滲墻0107.34.5910-7cm/sk5.010-7 cm/s合格027.312.54.2410-7cm/sk5.010-7 cm/s合格ZK-07攪拌樁防滲墻0106.94.6910-7cm/sk5.010-7 cm/s合格026.914.44.2310-7cm/sk5.010-7

14、cm/s合格ZK-08攪拌樁防滲墻0107.04. 2710-7cm/sk5.010-7 cm/s合格027.014.33.8310-7cm/sk5.010-7 cm/s合格ZK-09攪拌樁防滲墻0107.74.8610-7cm/sk5.010-7 cm/s合格027.714.44.7710-7cm/sk5.010-7 cm/s合格ZK-10攪拌樁防滲墻0107.62. 2710-7cm/sk5.010-7 cm/s合格027.614.33.9110-7cm/sk5.010-7 cm/s合格ZK-11攪拌樁防滲墻0107.34.5510-7cm/sk5.010-7 cm/s合格027.314.

15、43.7010-7cm/sk5.010-7 cm/s合格鉆孔注水試驗檢測結果匯總表二孔號檢測內容試段試段長度(m)實測值設計值質量評定ZK-12攪拌樁防滲墻0107.13.9910-7cm/sk5.010-7 cm/s合格027.114.22.7910-7cm/sk5.010-7 cm/s合格ZK-13攪拌樁防滲墻0106.24.7910-7cm/sk5.010-7 cm/s合格026.211.63.0610-7cm/sk5.010-7 cm/s合格ZK-14攪拌樁防滲墻0105.94.8810-7cm/sk5.010-7 cm/s合格025.911.43.6210-7cm/sk5.010-7

16、 cm/s合格ZK-15攪拌樁防滲墻0106.84. 9410-7cm/sk5.010-7 cm/s合格026.811.54.8210-7cm/sk5.010-7 cm/s合格ZK-16攪拌樁防滲墻0107.44.8710-7cm/sk5.010-7 cm/s合格027.413.44.5410-7cm/sk5.010-7 cm/s合格ZK-17攪拌樁防滲墻0107.73.8110-7cm/sk5.010-7 cm/s合格027.713.52.8210-7cm/sk5.010-7 cm/s合格ZK-18攪拌樁防滲墻0107.93.7710-7cm/sk5.010-7 cm/s合格027.913.

17、52.8210-7cm/sk5.010-7 cm/s合格ZK-19攪拌樁防滲墻0107.84. 0910-7cm/sk5.010-7 cm/s合格027.812.63.3810-7cm/sk5.010-7 cm/s合格ZK-20攪拌樁防滲墻0107.54.3510-7cm/sk5.010-7 cm/s合格027.512.53.7710-7cm/sk5.010-7 cm/s合格ZK-21攪拌樁防滲墻0107.44.4810-7cm/sk5.010-7 cm/s合格027.412.62.7210-7cm/sk5.010-7 cm/s合格ZK-22攪拌樁防滲墻0106.53.9710-7cm/sk5

18、.010-7 cm/s合格026.512.52.4810-7cm/sk5.010-7 cm/s合格ZK-23攪拌樁防滲墻0105.84.8410-7cm/sk5.010-7 cm/s合格025.812.62.6510-7cm/sk5.010-7 cm/s合格鉆孔注水試驗檢測結果匯總表三孔號檢測內容試段試段長度(m)實測值設計值質量評定ZK-24攪拌樁防滲墻0107.93.8910-7cm/sk5.010-7 cm/s合格027.915.42.8310-7cm/sk5.010-7 cm/s合格ZK-25攪拌樁防滲墻0107.74.9810-7cm/sk5.010-7 cm/s合格027.713.

19、54.0010-7cm/sk5.010-7 cm/s合格ZK-26攪拌樁防滲墻0106.94.4510-7cm/sk5.010-7 cm/s合格026.913.43.4110-7cm/sk5.010-7 cm/s合格ZK-27攪拌樁防滲墻0106.84. 5810-7cm/sk5.010-7 cm/s合格026.813.43.0810-7cm/sk5.010-7 cm/s合格ZK-28攪拌樁防滲墻0106.64.7810-7cm/sk5.010-7 cm/s合格026.612.63.6610-7cm/sk5.010-7 cm/s合格ZK-29攪拌樁防滲墻0106.74.0110-7cm/sk5

20、.010-7 cm/s合格026.712.42.8010-7cm/sk5.010-7 cm/s合格ZK-30攪拌樁防滲墻0107.24.1810-7cm/sk5.010-7 cm/s合格027.214.62.7910-7cm/sk5.010-7 cm/s合格ZK-31攪拌樁防滲墻0107.84. 3910-7cm/sk5.010-7 cm/s合格027.814.62.4410-7cm/sk5.010-7 cm/s合格ZK-32攪拌樁防滲墻0105.24. 9910-7cm/sk5.010-7 cm/s合格025.27.74.8210-7cm/sk5.010-7 cm/s合格ZK-33攪拌樁防滲

21、墻0105.84. 8810-7cm/sk5.010-7 cm/s合格025.89.54.7410-7cm/sk5.010-7 cm/s合格ZK-34攪拌樁防滲墻0106.24.2110-7cm/sk5.010-7 cm/s合格026.29.73.8210-7cm/sk5.010-7 cm/s合格ZK-35攪拌樁防滲墻0107.54.5610-7cm/sk5.010-7 cm/s合格027.512.43.1810-7cm/sk5.010-7 cm/s合格鉆孔注水試驗檢測結果匯總表四孔號檢測內容試段試段長度(m)實測值設計值質量評定ZK-36攪拌樁防滲墻0108.14.5510-7cm/sk5.

22、010-7 cm/s合格028.114.23.3610-7cm/sk5.010-7 cm/s合格ZK-37攪拌樁防滲墻0106.74.8710-7cm/sk5.010-7 cm/s合格026.714.43.6410-7cm/sk5.010-7 cm/s合格ZK-38攪拌樁防滲墻0105.84.2610-7cm/sk5.010-7 cm/s合格025.811.63.9310-7cm/sk5.010-7 cm/s合格ZK-39攪拌樁防滲墻0106.33.9810-7cm/sk5.010-7 cm/s合格026.313.33.4810-7cm/sk5.010-7 cm/s合格ZK-40攪拌樁防滲墻0

23、106.14.6710-7cm/sk5.010-7 cm/s合格026.113.42.3710-7cm/sk5.010-7 cm/s合格ZK-41攪拌樁防滲墻0108.84.6110-7cm/sk5.010-7 cm/s合格028.815.33.5710-7cm/sk5.010-7 cm/s合格ZK-42攪拌樁防滲墻0108.54.5610-7cm/sk5.010-7 cm/s合格028.515.33.1210-7cm/sk5.010-7 cm/s合格ZK-43攪拌樁防滲墻0106.94.8710-7cm/sk5.010-7 cm/s合格026.915.53.3510-7cm/sk5.010-

24、7 cm/s合格ZK-44攪拌樁防滲墻0105.54. 3810-7cm/sk5.010-7 cm/s合格025.510.53.7910-7cm/sk5.010-7 cm/s合格ZK-45攪拌樁防滲墻0106.14.5610-7cm/sk5.010-7 cm/s合格026.112.52.3910-7cm/sk5.010-7 cm/s合格ZK-46攪拌樁防滲墻0107.74.9310-7cm/sk5.010-7 cm/s合格027.714.34.1810-7cm/sk5.010-7 cm/s合格ZK-47攪拌樁防滲墻0108.54.8710-7cm/sk5.010-7 cm/s合格028.514

25、.44.3010-7cm/sk5.010-7 cm/s合格鉆孔注水試驗檢測結果匯總表五孔號檢測內容試段試段長度(m)實測值設計值質量評定ZK-48攪拌樁防滲墻0108.74.1110-7cm/sk5.010-7 cm/s合格028.715.43.0210-7cm/sk5.010-7 cm/s合格ZK-49攪拌樁防滲墻0109.14.5610-7cm/sk5.010-7 cm/s合格029.115.43.6110-7cm/sk5.010-7 cm/s合格ZK-50攪拌樁防滲墻0107.54.7310-7cm/sk5.010-7 cm/s合格027.515.24.1910-7cm/sk5.010-

26、7 cm/s合格ZK-51攪拌樁防滲墻0107.84.5110-7cm/sk5.010-7 cm/s合格027.814.63.3310-7cm/sk5.010-7 cm/s合格ZK-52攪拌樁防滲墻0107.34.2810-7cm/sk5.010-7 cm/s合格027.314.42.9210-7cm/sk5.010-7 cm/s合格ZK-53攪拌樁防滲墻0108.14.8910-7cm/sk5.010-7 cm/s合格028.114.54.4310-7cm/sk5.010-7 cm/s合格2、結論經過對本工程項目水泥土攪拌樁防滲墻的鉆孔試驗檢測，根據相關規范和設計要求結合試驗成果資料分析，該

27、水泥土攪拌樁防滲墻滲透系數均滿足設計要求。七、附圖表7.1、部分檢測孔芯樣照片（附件1)7.2、各檢測孔鉆孔柱狀圖（附件2)附件1、部分芯樣照片ZK-51（K58+120）檢測孔芯樣照片ZK-52（K58+420）檢測孔芯樣照片ZK-53（K58+720）檢測孔芯樣照片ZK-23（K69+480）檢測孔芯樣照片ZK-22（K69+180）檢測孔芯樣照片 ZK-20（K69+580）檢測孔芯樣照片ZK-18（K67+980）檢測孔芯樣照片ZK-16（K67+380）檢測孔芯樣照片ZK-11（K63+980）檢測孔芯樣照片ZK-9（K63+380）檢測孔芯樣照片ZK-7（K69+480）檢測孔芯樣照片ZK-24（K0+050）檢測孔芯樣照片