測(ce)量(liang)孔(kong)深:鉆孔(kong)終孔(kong)時測(ce)量(liang)鉆桿鉆具(ju)長度，孔(kong)深大于20m時，進行(xing)孔(kong)內測(ce)斜。

下噴(pen)射(she)管:鉆孔經驗收合(he)格后(hou)，方可進行高壓噴(pen)射(she)注漿，下噴(pen)射(she)管前檢查(cha)以下事項。

 1) 測量噴射(she)管(guan)長度，測量噴嘴中心(xin)線(xian)是否與噴射(she)管(guan)方向箭一致，噴射(she)管(guan)應標識尺度。 

2) 將噴(pen)頭置(zhi)于高(gao)壓水泵附(fu)近(jin)，試壓管路應(ying)小(xiao)于20m，試噴(pen)調為設計(ji)噴(pen)射壓力(li)。 

3) 施工時下噴射(she)管(guan)前進行地面(mian)水(shui)、氣、漿試噴，三重管(guan)高壓(ya)旋噴樁，即設(she)計(ji)噴射(she)壓(ya)力(li)+管(guan)路壓(ya)力(li)。 

4) 設計噴射壓(ya)力(li)+管路(lu)壓(ya)力(li)為施(shi)工(gong)用的標準噴射壓(ya)力(li)，更換噴嘴時重新(xin)調試。 

5) 擺噴(pen)施(shi)工下噴(pen)射管前，應進行(xing)地面試噴(pen)并調準噴(pen)射方向和擺動角(jiao)度。

 6) 地面(mian)試噴(pen)經驗(yan)收合格后(hou)，下入(ru)噴(pen)射管時，應采取措施防止(zhi)噴(pen)嘴堵塞(sai)。 

7) 孔(kong)內沉淀物較多時(shi)(shi)，應(ying)事先準備黏土泥(ni)漿，下噴射管時(shi)(shi)邊沖入泥(ni)漿邊下管。

 8) 鉆(zhan)孔(kong)當(dang)采用套管(guan)(guan)護(hu)壁時(shi)，下(xia)入噴射管(guan)(guan)后，拔出護(hu)壁套管(guan)(guan)。 

9) 當采用振沖(chong)沉管(guan)時(shi)，必須滿(man)足以上要求(qiu)。 

10) 當噴射管下至設計深度時，經監理工程師批準后，準備開噴。

施工試驗計劃

1. 參數確定

(1) 施工前在場地內選擇與工程條(tiao)件相類似地段，進行現(xian)場試驗確定施工工藝參數。

(2) 為工(gong)(gong)程開工(gong)(gong)準備，高壓旋噴樁公(gong)司，先選擇工(gong)(gong)程中少量部(bu)分進行試驗(yan)性施工(gong)(gong)確定(ding)施工(gong)(gong)工(gong)(gong)藝參數。

(3) 施(shi)工(gong)中(zhong)發現(xian)使(shi)用的技(ji)術參數有問題(ti)，應當及時進行修正和調(diao)整施(shi)工(gong)工(gong)藝參數。

2. 施工試驗

(1) 根據工(gong)程需(xu)要開工(gong)前試驗，高(gao)壓旋噴(pen)樁價格，可(ke)選擇(ze)旋噴(pen)注漿、擺噴(pen)注漿和定噴(pen)注漿等類別(bie)。

(2) 噴(pen)射形式和(he)結(jie)構，可(ke)選擇(ze)旋噴(pen)樁、擺噴(pen)墻、定噴(pen)板單(dan)噴(pen)和(he)連接或圍(wei)井(jing)試驗。

旋(xuan)(xuan)擺(bai)(bai)(bai)(bai)(bai)提(ti)(ti)(ti)(ti)升:單嘴噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)頭(tou)擺(bai)(bai)(bai)(bai)(bai)360°為(wei)(wei)旋(xuan)(xuan)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen);小(xiao)(xiao)于(yu)(yu)(yu)360°為(wei)(wei)弧噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen);小(xiao)(xiao)于(yu)(yu)(yu)等于(yu)(yu)(yu)180°為(wei)(wei)拱噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen);小(xiao)(xiao)于(yu)(yu)(yu)等于(yu)(yu)(yu)90°為(wei)(wei)擺(bai)(bai)(bai)(bai)(bai)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen);擺(bai)(bai)(bai)(bai)(bai)角(jiao)(jiao)為(wei)(wei)0°時為(wei)(wei)單向(xiang)(xiang)定(ding)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)。同軸雙(shuang)嘴噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)頭(tou)擺(bai)(bai)(bai)(bai)(bai)180°為(wei)(wei)旋(xuan)(xuan)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen);小(xiao)(xiao)于(yu)(yu)(yu)180°為(wei)(wei)雙(shuang)向(xiang)(xiang)拱噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen);小(xiao)(xiao)于(yu)(yu)(yu)等于(yu)(yu)(yu)90°為(wei)(wei)雙(shuang)向(xiang)(xiang)擺(bai)(bai)(bai)(bai)(bai)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen);擺(bai)(bai)(bai)(bai)(bai)角(jiao)(jiao)為(wei)(wei)0°時為(wei)(wei)雙(shuang)向(xiang)(xiang)定(ding)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)。非(fei)同軸雙(shuang)嘴噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)頭(tou)有90°夾(jia)角(jiao)(jiao)、120°夾(jia)角(jiao)(jiao)、150°夾(jia)角(jiao)(jiao)，可(ke)用(yong)(yong)(yong)于(yu)(yu)(yu)擺(bai)(bai)(bai)(bai)(bai)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)和(he)(he)定(ding)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)。多嘴噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)頭(tou)目前國內使用(yong)(yong)(yong)的(de)不(bu)多。旋(xuan)(xuan)擺(bai)(bai)(bai)(bai)(bai)為(wei)(wei)機械旋(xuan)(xuan)擺(bai)(bai)(bai)(bai)(bai)和(he)(he)特殊環境下(xia)人(ren)工(gong)旋(xuan)(xuan)擺(bai)(bai)(bai)(bai)(bai)。 1) 高(gao)壓(ya)(ya)旋(xuan)(xuan)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)切割土(tu)(tu)體(ti)一周，旋(xuan)(xuan)擺(bai)(bai)(bai)(bai)(bai)和(he)(he)提(ti)(ti)(ti)(ti)升速(su)度(du)(du)慢，噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射(she)(she)(she)半徑(jing)長(chang)，形成(cheng)(cheng)樁(zhuang)徑(jing)大(da)。 2) 高(gao)壓(ya)(ya)擺(bai)(bai)(bai)(bai)(bai)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)切割土(tu)(tu)體(ti)，擺(bai)(bai)(bai)(bai)(bai)動和(he)(he)提(ti)(ti)(ti)(ti)升速(su)度(du)(du)慢，噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射(she)(she)(she)半徑(jing)長(chang)，形成(cheng)(cheng)凝固(gu)體(ti)積大(da)。 3) 高(gao)壓(ya)(ya)定(ding)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)切割土(tu)(tu)體(ti)，提(ti)(ti)(ti)(ti)升速(su)度(du)(du)慢，噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射(she)(she)(she)半徑(jing)長(chang)，形成(cheng)(cheng)凝固(gu)體(ti)板長(chang)。 4) 提(ti)(ti)(ti)(ti)升速(su)度(du)(du)應(ying)與注漿(jiang)量(liang)匹(pi)配，供漿(jiang)量(liang)應(ying)滿足(zu)提(ti)(ti)(ti)(ti)速(su)，提(ti)(ti)(ti)(ti)速(su)應(ying)滿足(zu)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射(she)(she)(she)半徑(jing)長(chang)度(du)(du)。 5) 高(gao)壓(ya)(ya)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射(she)(she)(she)注漿(jiang)機械旋(xuan)(xuan)擺(bai)(bai)(bai)(bai)(bai)，形成(cheng)(cheng)凝固(gu)體(ti)積規(gui)則(ze)(ze)，人(ren)工(gong)旋(xuan)(xuan)擺(bai)(bai)(bai)(bai)(bai)，形成(cheng)(cheng)凝固(gu)體(ti)積不(bu)規(gui)則(ze)(ze)。 6) 旋(xuan)(xuan)擺(bai)(bai)(bai)(bai)(bai)定(ding)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射(she)(she)(she)過程中要(yao)固(gu)定(ding)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)方(fang)(fang)向(xiang)(xiang)樁(zhuang)，以便隨時檢查和(he)(he)防止(zhi)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)方(fang)(fang)向(xiang)(xiang)位(wei)移。 7) 噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射(she)(she)(she)過程中接(jie)卸換管(guan)時要(yao)檢查噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)方(fang)(fang)向(xiang)(xiang)，武漢高(gao)壓(ya)(ya)旋(xuan)(xuan)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)樁(zhuang)，防止(zhi)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射(she)(she)(she)方(fang)(fang)向(xiang)(xiang)位(wei)移。 8) 按設(she)計要(yao)求旋(xuan)(xuan)擺(bai)(bai)(bai)(bai)(bai)定(ding)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射(she)(she)(she)提(ti)(ti)(ti)(ti)升，自下(xia)而上至設(she)計標高(gao)，停止(zhi)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射(she)(she)(she)，提(ti)(ti)(ti)(ti)出(chu)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射(she)(she)(she)管(guan)。 9) 旋(xuan)(xuan)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)注漿(jiang)適(shi)用(yong)(yong)(yong)于(yu)(yu)(yu)細(xi)顆粒和(he)(he)粗顆粒松散(san)(san)地(di)層(ceng)(ceng)，定(ding)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)注漿(jiang)適(shi)用(yong)(yong)(yong)于(yu)(yu)(yu)細(xi)顆粒松散(san)(san)地(di)層(ceng)(ceng)。 a. 定(ding)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen):適(shi)用(yong)(yong)(yong)于(yu)(yu)(yu)黏(nian)性土(tu)(tu)、粉(fen)土(tu)(tu)、砂土(tu)(tu)細(xi)顆粒松散(san)(san)地(di)層(ceng)(ceng)。 b. 擺(bai)(bai)(bai)(bai)(bai)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen):適(shi)用(yong)(yong)(yong)于(yu)(yu)(yu)黏(nian)性土(tu)(tu)、粉(fen)土(tu)(tu)、砂土(tu)(tu)、礫(li)石中顆粒松散(san)(san)地(di)層(ceng)(ceng)。 c. 旋(xuan)(xuan)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen):適(shi)用(yong)(yong)(yong)于(yu)(yu)(yu)黏(nian)性土(tu)(tu)、粉(fen)土(tu)(tu)、砂土(tu)(tu)、礫(li)石、卵石粗顆粒松散(san)(san)地(di)層(ceng)(ceng)。