孔(kong)位布局根據(ju)施工(gong)圖，測量(liang)員(yuan)在開(kai)挖面(mian)上準確標記小(xiao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)孔(kong)位置。（2）鉆孔(kong)使(shi)用(yong)氣動鉆進行(xing)鉆孔(kong)，鉆頭直徑比設計(ji)的(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)直徑大20毫(hao)米以(yi)上。（3）制作(zuo)鋼(gang)花管(guan)(guan)(guan)(guan)(guan)(guan)(guan)小(xiao)導管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)制成(cheng)尖(jian)頭圓錐形，尾(wei)部(bu)焊(han)(han)接有8毫(hao)米的(de)(de)(de)鋼(gang)筋環，每10-20厘(li)米鉆一次管(guan)(guan)(guan)(guan)(guan)(guan)(guan)壁。孔(kong)的(de)(de)(de)直徑為6-8毫(hao)米，尾(wei)部(bu)長(chang)度(du)(du)不(bu)小(xiao)于30cm作(zuo)為不(bu)鉆孔(kong)的(de)(de)(de)止漿(jiang)段。（4）小(xiao)導管(guan)(guan)(guan)(guan)(guan)(guan)(guan)安裝用(yong)氣鉆將小(xiao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)子推入(ru)，鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)尾(wei)端(duan)露(lu)出足夠(gou)的(de)(de)(de)長(chang)度(du)(du)。嚴格(ge)按照施工(gong)圖的(de)(de)(de)要(yao)求(qiu)制成(cheng)小(xiao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)外插角(jiao)，尾(wei)部(bu)焊(han)(han)接在鋼(gang)架上，小(xiao)導管(guan)(guan)(guan)(guan)(guan)(guan)(guan)大致平(ping)行(xing)于中(zhong)心線。鉆孔(kong)偏(pian)差應(ying)(ying)不(bu)大于10厘(li)米，并且孔(kong)眼(yan)深(shen)度(du)(du)應(ying)(ying)大于小(xiao)導管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)長(chang)度(du)(du)。（5）灌(guan)(guan)(guan)漿(jiang)使(shi)用(yong)KBY-50/70注漿(jiang)泵(beng)注入(ru)水泥漿(jiang)或水泥砂漿(jiang)，在灌(guan)(guan)(guan)漿(jiang)之(zhi)前(qian)，噴涂5-10厘(li)米厚的(de)(de)(de)混凝(ning)土(tu)以(yi)密封(feng)工(gong)作(zuo)面(mian)，形成(cheng)灌(guan)(guan)(guan)漿(jiang)板(ban)。在灌(guan)(guan)(guan)漿(jiang)之(zhi)前(qian)，沖(chong)洗管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)中(zhong)的(de)(de)(de)沉積物，然后(hou)(hou)從下(xia)往上進行(xing)。單孔(kong)注漿(jiang)壓力達(da)(da)到設計(ji)要(yao)求(qiu)值，注漿(jiang)持續(xu)10分鐘，注漿(jiang)速度(du)(du)為初始注漿(jiang)速度(du)(du)的(de)(de)(de)1/4或注漿(jiang)量(liang)達(da)(da)到設計(ji)注漿(jiang)量(liang)的(de)(de)(de)80％以(yi)上。灌(guan)(guan)(guan)漿(jiang)后(hou)(hou)的(de)(de)(de)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)應(ying)(ying)立即堵塞孔(kong)口，以(yi)防止灌(guan)(guan)(guan)漿(jiang)流(liu)出。在灌(guan)(guan)(guan)漿(jiang)過程中(zhong)要(yao)認(ren)真填寫灌(guan)(guan)(guan)漿(jiang)記錄，隨時分析和改善操作(zuo)，并注意施工(gong)支撐面(mian)的(de)(de)(de)狀態(tai)，灌(guan)(guan)(guan)漿(jiang)參數(shu)應(ying)(ying)根據(ju)灌(guan)(guan)(guan)漿(jiang)試驗(yan)結果(guo)和現場條件進行(xing)調整。可(ke)以(yi)參考以(yi)下(xia)數(shu)據(ju)選擇灌(guan)(guan)(guan)漿(jiang)參數(shu)：灌(guan)(guan)(guan)漿(jiang)壓力：一般(ban)為?；漿(jiang)料初始凝(ning)結時間：1?2min；水泥：P。銅仁管(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚廠家——貴州合縱達(da)(da)鋼(gang)結構有限責任(ren)公司。黔(qian)南聲(sheng)測管(guan)(guan)(guan)(guan)(guan)(guan)(guan)費用(yong)

隧道用鋼花管(guan)(guan)(guan)、管(guan)(guan)(guan)棚管(guan)(guan)(guan)：可定制規格(ge):外(wai)(wai)(wai)徑(jing)（mm）Φ20-Φ108厚度(du)齒高（mm）±（mm）±標準(zhun)長(chang)度(du)56米注漿(jiang)(jiang)錨桿常備現貨(huo)(huo)規格(ge)：外(wai)(wai)(wai)徑(jing)（mm）Φ25、Φ27、Φ28、Φ32、Φ38。壁(bi)厚（mm）、3、、4、、5、6、7、8。【聲測管(guan)(guan)(guan)現貨(huo)(huo)供應(ying)】液壓式螺(luo)旋式套筒式法蘭式外(wai)(wai)(wai)徑(jing)50壁(bi)厚到外(wai)(wai)(wai)徑(jing)54壁(bi)厚到外(wai)(wai)(wai)徑(jing)57壁(bi)厚到超(chao)前小(xiao)導(dao)管(guan)(guan)(guan)注漿(jiang)(jiang)步驟為(wei)：（1）沿開挖(wa)面周(zhou)邊布置注漿(jiang)(jiang)眼。（2）按(an)布置的(de)注漿(jiang)(jiang)眼位置鉆眼，眼深(shen)3~4m（接(jie)設計）。將壓漿(jiang)(jiang)管(guan)(guan)(guan)頂(ding)入巖層。壓漿(jiang)(jiang)管(guan)(guan)(guan)采用ф32/38/42/48㎜熱軋無(wu)縫鋼管(guan)(guan)(guan)，管(guan)(guan)(guan)壁(bi)四周(zhou)每隔ф10㎜的(de)注漿(jiang)(jiang)孔。為(wei)防止漏漿(jiang)(jiang)，管(guan)(guan)(guan)端(duan)無(wu)孔部分(fen)長(chang)1m，管(guan)(guan)(guan)前端(duan)鍛成鐵尖，尾端(duan)焊上ф6㎜鋼筋加(jia)勁(jing)箍。南明區管(guan)(guan)(guan)棚管(guan)(guan)(guan)生產廠家銅仁跟管(guan)(guan)(guan)廠家——貴(gui)州合縱達(da)鋼結構有限責任公司。

【技術(shu)干貨】潛(qian)孔(kong)(kong)鉆(zhan)(zhan)(zhan)(zhan)(zhan)跟(gen)管(guan)(guan)(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)(zhan)進(jin)技術(shu)（一(yi)(yi)）1、概述空氣(qi)(qi)潛(qian)孔(kong)(kong)錘(chui)跟(gen)管(guan)(guan)(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)(zhan)進(jin)技術(shu)是以(yi)壓縮空氣(qi)(qi)作(zuo)為動力，跟(gen)管(guan)(guan)(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)(zhan)具(ju)(ju)在空氣(qi)(qi)潛(qian)孔(kong)(kong)錘(chui)和鉆(zhan)(zhan)(zhan)(zhan)(zhan)機(ji)(ji)扭矩作(zuo)用(yong)下進(jin)行沖擊(ji)回(hui)(hui)轉鉆(zhan)(zhan)(zhan)(zhan)(zhan)進(jin)并(bing)實現同(tong)步跟(gen)進(jin)套管(guan)(guan)(guan)(guan)，終孔(kong)(kong)后跟(gen)管(guan)(guan)(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)(zhan)具(ju)(ju)從套管(guan)(guan)(guan)(guan)中提出(chu)，套管(guan)(guan)(guan)(guan)用(yong)于護壁的(de)一(yi)(yi)種鉆(zhan)(zhan)(zhan)(zhan)(zhan)進(jin)新技術(shu)。空氣(qi)(qi)潛(qian)孔(kong)(kong)錘(chui)跟(gen)管(guan)(guan)(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)(zhan)進(jin)特點主要(yao)用(yong)于難于成孔(kong)(kong)的(de)破碎地(di)層(ceng)，如卵礫石層(ceng)、流砂層(ceng)、覆蓋(gai)層(ceng)、坡(po)積(ji)層(ceng)等；鉆(zhan)(zhan)(zhan)(zhan)(zhan)進(jin)速(su)度快、效率高(gao)(gao)，一(yi)(yi)般可(ke)達到5m/h,干式（空氣(qi)(qi)）鉆(zhan)(zhan)(zhan)(zhan)(zhan)進(jin)，對缺水(shui)地(di)區(qu)、不能(neng)用(yong)水(shui)的(de)滑坡(po)施工(gong)(gong)等有(you)重(zhong)要(yao)意義(yi)；套管(guan)(guan)(guan)(guan)能(neng)回(hui)(hui)收(shou)，重(zhong)復使(shi)用(yong)；單(dan)級跟(gen)管(guan)(guan)(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)(zhan)進(jin)孔(kong)(kong)深一(yi)(yi)般為40m，有(you)的(de)可(ke)達到80m以(yi)上；地(di)層(ceng)含(han)泥(ni)量很(hen)高(gao)(gao)時易堵氣(qi)(qi)孔(kong)(kong)；鉆(zhan)(zhan)(zhan)(zhan)(zhan)機(ji)(ji)要(yao)求(qiu)低(di)轉速(su)（50轉/分以(yi)下）、大扭矩，好是長行程(cheng)的(de)多功(gong)能(neng)鉆(zhan)(zhan)(zhan)(zhan)(zhan)機(ji)(ji)、水(shui)井(jing)鉆(zhan)(zhan)(zhan)(zhan)(zhan)機(ji)(ji)等，若地(di)質鉆(zhan)(zhan)(zhan)(zhan)(zhan)機(ji)(ji)要(yao)能(neng)降速(su)。空氣(qi)(qi)潛(qian)孔(kong)(kong)錘(chui)跟(gen)管(guan)(guan)(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)(zhan)進(jin)應(ying)用(yong)領域地(di)質勘(kan)探地(di)災治理(li)、應(ying)急搶(qiang)險（重(zhong)慶(qing)武隆滑坡(po)搶(qiang)險工(gong)(gong)程(cheng)）水(shui)井(jing)鉆(zhan)(zhan)(zhan)(zhan)(zhan)進(jin)（云(yun)南抗旱打(da)井(jing)工(gong)(gong)程(cheng)、山(shan)東抗旱打(da)井(jing)工(gong)(gong)程(cheng)）水(shui)電站(zhan)建(jian)設（云(yun)南小灣水(shui)電站(zhan)高(gao)(gao)邊坡(po)搶(qiang)險工(gong)(gong)程(cheng)）城市高(gao)(gao)層(ceng)建(jian)筑(zhu)地(di)基處理(li)高(gao)(gao)速(su)公路(lu)、鐵道建(jian)設工(gong)(gong)程(cheng)隧道管(guan)(guan)(guan)(guan)棚施工(gong)(gong)石油物探鉆(zhan)(zhan)(zhan)(zhan)(zhan)孔(kong)(kong)等。GK-4孔(kong)(kong)巖(yan)芯(xin)（局(ju)部）GK-4孔(kong)(kong)巖(yan)芯(xin)（局(ju)部）2、空氣(qi)(qi)潛(qian)孔(kong)(kong)錘(chui)跟(gen)管(guan)(guan)(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)(zhan)進(jin)工(gong)(gong)作(zuo)原(yuan)理(li)跟(gen)管(guan)(guan)(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)(zhan)具(ju)(ju)結構(gou)類(lei)型空氣(qi)(qi)潛(qian)孔(kong)(kong)錘(chui)跟(gen)管(guan)(guan)(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)(zhan)具(ju)(ju)是進(jin)行跟(gen)管(guan)(guan)(guan)(guan)鉆(zhan)(zhan)(zhan)(zhan)(zhan)進(jin)主要(yao)的(de)器具(ju)(ju)，目前國(guo)內外有(you)很(hen)多種結構(gou)類(lei)型。

作(zuo)為(wei)隧(sui)道洞口段(duan)及修建大斷面隧(sui)道施(shi)工(gong)的(de)(de)(de)輔助工(gong)法及作(zuo)為(wei)其他施(shi)工(gong)的(de)(de)(de)輔助工(gong)法，也常用(yong)于(yu)淺埋但不(bu)宜(yi)(yi)(yi)明挖地(di)段(duan)或(huo)淺埋隧(sui)道情況下，地(di)表有(you)建筑物、或(huo)隧(sui)道接近地(di)中結(jie)構物時等(deng)對施(shi)工(gong)沉降有(you)特殊要(yao)求(qiu)的(de)(de)(de)工(gong)程等(deng)。管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)支(zhi)護(hu)(hu)(hu)的(de)(de)(de)設(she)(she)計管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)支(zhi)護(hu)(hu)(hu)的(de)(de)(de)設(she)(she)計參數主要(yao)包括：鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)直徑(jing)(jing)、長(chang)(chang)度(du)、間距、仰角、水(shui)平搭接長(chang)(chang)度(du)、鋼(gang)(gang)架(jia)間距、注漿參數等(deng)，當(dang)需要(yao)增大鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)強度(du)和剛(gang)度(du)時，可在管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)內設(she)(she)置(zhi)鋼(gang)(gang)筋籠而后用(yong)水(shui)泥砂(sha)漿填(tian)充。我國《鐵路隧(sui)道施(shi)工(gong)規(gui)范》規(gui)定：管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)用(yong)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)直徑(jing)(jing)宜(yi)(yi)(yi)為(wei)φ70-φ127mm；鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)中心(xin)間距宜(yi)(yi)(yi)為(wei)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)(jing)的(de)(de)(de)2-3倍(bei)；管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)長(chang)(chang)度(du)應(ying)(ying)根據地(di)層情況選(xuan)用(yong)，不(bu)宜(yi)(yi)(yi)小(xiao)于(yu)10m；縱向(xiang)兩組(zu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)的(de)(de)(de)搭接長(chang)(chang)度(du)應(ying)(ying)大于(yu)3m。管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)支(zhi)護(hu)(hu)(hu)參數可按(an)工(gong)程類比(bi)法確定，并(bing)在施(shi)工(gong)中根據實際情況調整。管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)(jing)的(de)(de)(de)選(xuan)擇(ze)大部(bu)分工(gong)程的(de)(de)(de)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)直徑(jing)(jing)在中φ50-φ180mm之(zhi)間，有(you)學(xue)者(zhe)將管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)支(zhi)護(hu)(hu)(hu)按(an)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)(jing)分類為(wei)小(xiao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)和大管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)，小(xiao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)(jing)一(yi)般在φ30-φ50mm，大管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)(jing)介(jie)于(yu)φ89-φ159mm，工(gong)程中多用(yong)φ108mm的(de)(de)(de)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，環(huan)向(xiang)間距以不(bu)大于(yu)3-5倍(bei)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)(jing)為(wei)宜(yi)(yi)(yi)。管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)棚(peng)(peng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)選(xuan)擇(ze)根據計算結(jie)果(guo)和技術(shu)經(jing)濟因素分析，對于(yu)支(zhi)護(hu)(hu)(hu)條件要(yao)求(qiu)較高的(de)(de)(de)松軟(ruan)地(di)層，應(ying)(ying)選(xuan)取φ127mm鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，土體凝聚力較高的(de)(de)(de)粘性土，可選(xuan)取φ89mm鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，一(yi)般土層在多數情況下選(xuan)取φ108mm鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。水(shui)城(cheng)跟(gen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)廠家——貴州合縱達鋼(gang)(gang)結(jie)構有(you)限(xian)責任公司。

套(tao)管護孔(kong)(kong)(kong)(kong)鉆(zhan)進(jin)的特點之(zhi)一是只(zhi)跟進(jin)預定長(chang)度(du)套(tao)管，套(tao)管回轉(zhuan)的動力來自(zi)鉆(zhan)桿而非孔(kong)(kong)(kong)(kong)口(kou)鉆(zhan)機直接輸(shu)入，套(tao)管可替代部(bu)分鉆(zhan)桿功能。穿層抽(chou)采(cai)鉆(zhan)孔(kong)(kong)(kong)(kong)是抽(chou)采(cai)突(tu)(tu)出(chu)煤(mei)(mei)(mei)(mei)層瓦(wa)斯(si)，消除(chu)煤(mei)(mei)(mei)(mei)與(yu)瓦(wa)斯(si)突(tu)(tu)出(chu)問題的有(you)(you)(you)效(xiao)方法(fa)之(zhi)一。但在(zai)強突(tu)(tu)出(chu)煤(mei)(mei)(mei)(mei)層，施工(gong)穿層孔(kong)(kong)(kong)(kong)往往會誘發瓦(wa)斯(si)與(yu)煤(mei)(mei)(mei)(mei)突(tu)(tu)出(chu)，引起(qi)噴孔(kong)(kong)(kong)(kong)、塌(ta)孔(kong)(kong)(kong)(kong)和(he)(he)卡(ka)鉆(zhan)等，造(zao)成(cheng)鉆(zhan)孔(kong)(kong)(kong)(kong)深度(du)淺、成(cheng)孔(kong)(kong)(kong)(kong)率(lv)低，甚(shen)至能引起(qi)孔(kong)(kong)(kong)(kong)突(tu)(tu)和(he)(he)劇烈的煤(mei)(mei)(mei)(mei)炮(pao)。目前(qian)一般(ban)采(cai)取的措施為，鉆(zhan)孔(kong)(kong)(kong)(kong)施工(gong)過(guo)程時，在(zai)孔(kong)(kong)(kong)(kong)口(kou)安裝(zhuang)(zhuang)防(fang)噴裝(zhuang)(zhuang)置控制孔(kong)(kong)(kong)(kong)噴，防(fang)噴裝(zhuang)(zhuang)置在(zai)一般(ban)的突(tu)(tu)出(chu)煤(mei)(mei)(mei)(mei)層鉆(zhan)孔(kong)(kong)(kong)(kong)施工(gong)中使(shi)用具有(you)(you)(you)一定效(xiao)果(guo)，但在(zai)煤(mei)(mei)(mei)(mei)層瓦(wa)斯(si)含量更(geng)高、壓力更(geng)大地(di)點使(shi)用效(xiao)果(guo)甚(shen)微，而且防(fang)噴裝(zhuang)(zhuang)置安裝(zhuang)(zhuang)和(he)(he)使(shi)用復雜(za)，影響鉆(zhan)進(jin)效(xiao)率(lv)，也(ye)不能提高穿層鉆(zhan)孔(kong)(kong)(kong)(kong)的穿煤(mei)(mei)(mei)(mei)長(chang)度(du)和(he)(he)成(cheng)孔(kong)(kong)(kong)(kong)率(lv)。黔東南跟管廠(chang)家——貴州合(he)縱達鋼結構有(you)(you)(you)限責任公司(si)。六(liu)盤水管棚(peng)管價格(ge)

畢節跟管廠(chang)家——貴(gui)州合縱達鋼(gang)結構有(you)限責(ze)任公司。黔(qian)南(nan)聲測管費用

超(chao)(chao)(chao)前(qian)(qian)(qian)(qian)預支護及預加固(gu)(gu)(gu)施(shi)(shi)工(gong)技(ji)術(shu)。根(gen)據地(di)質(zhi)條(tiao)(tiao)件(jian)(jian)、地(di)下(xia)(xia)水狀(zhuang)(zhuang)況、施(shi)(shi)工(gong)方(fang)法(fa)以(yi)及環(huan)境條(tiao)(tiao)件(jian)(jian)等因(yin)素，地(di)層(ceng)(ceng)超(chao)(chao)(chao)前(qian)(qian)(qian)(qian)預支護及預加固(gu)(gu)(gu)可采(cai)取下(xia)(xia)列(lie)措施(shi)(shi)：(1)超(chao)(chao)(chao)前(qian)(qian)(qian)(qian)小(xiao)導(dao)(dao)(dao)管(guan)注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)加固(gu)(gu)(gu)；(2)深孔注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)；(3)管(guan)棚支護。考(kao)點一、超(chao)(chao)(chao)前(qian)(qian)(qian)(qian)小(xiao)導(dao)(dao)(dao)管(guan)注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)加固(gu)(gu)(gu)（1）超(chao)(chao)(chao)前(qian)(qian)(qian)(qian)小(xiao)導(dao)(dao)(dao)管(guan)應(ying)選(xuan)用(yong)直(zhi)徑為40~50mm的(de)(de)鋼管(guan)或水煤氣管(guan)，長度應(ying)大(da)(da)(da)于(yu)(yu)循環(huan)進尺的(de)(de)2倍(bei)，宜(yi)為3~5m，具體長度、直(zhi)徑應(ying)根(gen)據設(she)(she)計要求確定。（2）超(chao)(chao)(chao)前(qian)(qian)(qian)(qian)小(xiao)導(dao)(dao)(dao)管(guan)應(ying)從鋼格(ge)柵的(de)(de)腹部(bu)穿過，后端(duan)應(ying)支承在(zai)已(yi)架(jia)設(she)(she)好的(de)(de)鋼格(ge)柵上，并焊接牢固(gu)(gu)(gu)，前(qian)(qian)(qian)(qian)端(duan)嵌固(gu)(gu)(gu)在(zai)地(di)層(ceng)(ceng)中。前(qian)(qian)(qian)(qian)后兩(liang)排小(xiao)導(dao)(dao)(dao)管(guan)的(de)(de)水平支撐搭接長度不(bu)應(ying)小(xiao)于(yu)(yu)1m。（3）小(xiao)導(dao)(dao)(dao)管(guan)其端(duan)頭應(ying)封閉并制成錐狀(zhuang)(zhuang)，尾端(duan)設(she)(she)鋼筋加強箍，管(guan)身梅花型(xing)布設(she)(she)φ6?φ8mm的(de)(de)溢(yi)漿(jiang)(jiang)(jiang)(jiang)孔。（4）注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)施(shi)(shi)工(gong)應(ying)符合下(xia)(xia)列(lie)要求1）注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)工(gong)藝應(ying)簡(jian)單、方(fang)便、安全，應(ying)根(gen)據土質(zhi)條(tiao)(tiao)件(jian)(jian)選(xuan)擇注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)工(gong)藝（法(fa)）。在(zai)砂卵石地(di)層(ceng)(ceng)中宜(yi)采(cai)用(yong)滲入(ru)注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)法(fa)；在(zai)砂層(ceng)(ceng)中宜(yi)采(cai)用(yong)擠壓(ya)(ya)(ya)、滲透(tou)注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)法(fa)；在(zai)黏(nian)土層(ceng)(ceng)中宜(yi)采(cai)用(yong)劈裂或電動硅化注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)法(fa)。2）滲透(tou)法(fa)注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)壓(ya)(ya)(ya)力：注(zhu)(zhu)(zhu)(zhu)入(ru)壓(ya)(ya)(ya)力應(ying)保持在(zai)，注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)終壓(ya)(ya)(ya)應(ying)由(you)地(di)層(ceng)(ceng)條(tiao)(tiao)件(jian)(jian)和周邊(bian)環(huan)境控制要求確定，一般宜(yi)不(bu)大(da)(da)(da)于(yu)(yu)。每孔穩(wen)壓(ya)(ya)(ya)時(shi)間不(bu)小(xiao)于(yu)(yu)2min。劈裂法(fa)注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)壓(ya)(ya)(ya)力應(ying)大(da)(da)(da)于(yu)(yu)。考(kao)點二、深孔注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)加固(gu)(gu)(gu)技(ji)術(shu)（★★）（1）注(zhu)(zhu)(zhu)(zhu)漿(jiang)(jiang)(jiang)(jiang)段長度應(ying)綜(zong)合考(kao)慮地(di)層(ceng)(ceng)條(tiao)(tiao)件(jian)(jian)、地(di)下(xia)(xia)水狀(zhuang)(zhuang)態和鉆(zhan)孔設(she)(she)備(bei)的(de)(de)工(gong)作能力予(yu)以(yi)確定，宜(yi)為10~15m。黔南聲測(ce)管(guan)費用(yong)

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