CN102465536A - Construction process for cleaning holes in groove section of anti-seepage wall by air-lift method - Google Patents

Construction process for cleaning holes in groove section of anti-seepage wall by air-lift method Download PDF

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Publication number
CN102465536A
CN102465536A CN2010105533625A CN201010553362A CN102465536A CN 102465536 A CN102465536 A CN 102465536A CN 2010105533625 A CN2010105533625 A CN 2010105533625A CN 201010553362 A CN201010553362 A CN 201010553362A CN 102465536 A CN102465536 A CN 102465536A
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CN
China
Prior art keywords
pipe
groove section
air
hole
process
Prior art date
Application number
CN2010105533625A
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Chinese (zh)
Inventor
李振远
李明宇
梁荣
王虎山
石峰
谭修桥
陈红刚
Original Assignee
李振远
李明宇
梁荣
王虎山
石峰
谭修桥
陈红刚
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Application filed by 李振远, 李明宇, 梁荣, 王虎山, 石峰, 谭修桥, 陈红刚 filed Critical 李振远
Priority to CN2010105533625A priority Critical patent/CN102465536A/en
Publication of CN102465536A publication Critical patent/CN102465536A/en

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Abstract

The invention provides a process for cleaning holes in a groove section of an anti-seepage wall by an air-lift method. Namely, after holes in the groove section are checked and accepted, a deslagging pipe and an air pipe are arranged down. The deslagging pipe is connected to a sand removing machine by a hose pipe. A slurry return pipe of the sand removing machine is connected to a hole cleaning groove section. The air pipe is connected to an air compressor. The air compressor is started to supply air. The slurry containing drilling waste may enter in the sand removing machine by the pipeline to be purified, and the purified slurry returns to the groove section. The deslagging pipe is lengthened to clean slurry solution at the lower part until the deslagging pipe is arranged down to be close to the bottom of the groove section. After the holes are cleaned to enable the slurry solution to be qualified, hole positions are changed. The deslagging pipe does reciprocating movement in the groove section to clean the holes and is stopped until the hole positions in the whole groove section meet the qualification standard. The deslagging pipe and related equipment are disassembled, so that the hole cleaning process is finished.

Description

防渗墙槽段气举法清孔施工工艺 Cutoff Wall Grooves gas lift method Khong Construction Technology

[0001] 技术领域:防渗墙、地下连续墙、桩基施工领域 [0001] TECHNICAL FIELD: cutoff wall, diaphragm wall, pile foundation construction field

[0002] 背景技术:防渗墙槽段清孔传统工艺为抽桶换浆法,清孔速度慢、清孔效果差、泥浆浪费严重,尤其深度大的槽孔更是困难。 [0002] BACKGROUND: Cutoff Wall Grooves hole cleaning process is a conventional transducer barrels pumped slurry method, Khong slow, poor hole cleaning, waste mud serious, especially large slot depth even more difficult. 为了提高清孔速度和清孔质量,我们采用了气举法清孔工艺,大大提高了清孔换浆速度和清孔质量,减少了泥浆浪费。 In order to improve hole cleaning hole cleaning quality and speed, we used the gas lift method hole cleaning process, greatly improving the speed and syrup Khong transducer hole cleaning quality and reduce the waste of slurry.

[0003] 发明内容:防渗墙槽段气举法清孔工艺,即在槽段孔型验收合格后,先用抽桶将孔底沉渣及钻渣含量高的泥浆抽出槽孔,然后下设排渣管及风管,排渣管通过软管连接到除砂机及回浆管路,风管连接到空压机,设备管路连接见附图1。 [0003] SUMMARY: Cutoff Wall Grooves gas lift method hole cleaning process, i.e. after the acceptance slot section hole, the first hole with a high pumping tub bottom sediment and mud drilling residue content extraction slot, then under and scum duct, is connected via a hose to a scum sand removing machine and recycle slurry pipe, duct connected to the air compressor, see Fig. 1 connected to the device conduit. 管路连接完毕后,开启空压机送风,压缩空气通过风管进入排渣管与浆液混合,形成低密度的浆、气混合物,在外部浆液压力下快速上升,带动排渣管底部浆液上升,槽段下部含钻渣的泥浆会通过管路进入除砂机,浆液内的沙石经振动筛、旋流器从泥浆中分离出来,经过处理的泥浆回流到槽段内。 After the line is connected, open blowing air compressor, compressed air through the air duct into the slurry mixing with scum, is formed of a low density slurry, gas mixture, the slurry rises quickly under external pressure to drive the bottom of the slurry increased scum the lower slot section containing drilling mud will pass conduit slag removing sand machine, sand in the slurry through a vibrating screen, cyclone separation from the slurry out of slurry through the tank back into the treated segment. 根据出渣速度,可判断槽段内泥浆的钻渣含量,待出渣较少时,可继续向槽段下部加长排渣管,清理下部浆液,直至排渣管下设至距离槽段底部15cm处,清孔至浆液合格、孔底淤积厚度满足要求后在槽段内其他孔位继续清孔,排渣管可在槽段内往复移动,直至全槽段每一个孔位达到合格标准后停止,拆卸排渣管路及相关设备,完成清孔。 The tapping speed, determines the slag content in the drilling mud channel section, to be a small residue, a lower slot section may continue to 15cm slag elongated tube, the lower part of cleaning the slurry, until the scum from the bottom to the trough section consists of , the clear aperture to the slurry passing hole bottom deposition thickness to meet the requirements in the other slot section holes continue to hole cleaning, scum reciprocally movable within the groove segments, up to full vat segment stops after each hole meet the eligibility criteria Removal slag piping and related equipment, to complete the hole cleaning.

[0004] 附图说明:附图1为设备管路连接示意图 [0004] BRIEF DESCRIPTION OF DRAWINGS: Figure 1 is a schematic view of devices connected to the line

[0005] 具体实施方式:槽段孔型验收合格后,用抽桶清除孔底沉渣,向槽孔口补充新制合格泥浆,待沉渣基本清理完毕后,下设排渣管底管、排渣管、风管,风管在排渣管上的接口(混合器)下设在距孔口2(Γ30米深度范围内为宜,管底下设至距离孔底50米深度处,可安装孔口弯管、软管,将软管连接至除砂机,将除砂机回浆管出口放置在清孔槽段孔口,孔内风管经高压风管连接至空压机。检查管路连接合格后,开启空压机,根据排渣管出浆量情况,上下活动排渣管下设深度,除砂机出渣量很少时即可向下连接排渣管,管底下放至距离孔底15cm处时则停止下放。清孔过程中要随时检查除砂机回浆质量,当孔底泥浆质量太差时,可将部分泥浆排放掉,补充新制合格泥浆,待泥浆指标和孔底沉渣厚度满足要求后,可将排渣管移动至槽段内其他孔位。排渣管在 [0005] DETAILED DESCRIPTION: grooved channel sections after acceptance by pumping clear barrel hole bottom sediment, the mud passing added freshly slot opening, to be cleared up sediment, under the bottom pipe scum, scum , duct, pipe duct in the slag interface (mixer) under the (Γ30 m depth from the orifice 2 is appropriate, provided under the pipe to the bottom of the hole at a distance of 50 m depth, mounting apertures may be bent tubes, hoses, the hose is connected to the sand removing machine, the sand removing machine recycle slurry pipe outlet placed in the groove segment opening hole cleaning, hole pipe is connected to the duct via a high pressure air compressor. check the pipe connection passing after the compressor is turned on, to connect scum down small when the amount of slag scum case the amount of pulp, vertically movable under the scum depth of the sand out of the machine, under the discharge pipe to the bottom of the hole from 15cm is stopped at the lower levels. hole cleaning process should always check the sand removing machine back to pulp quality, when the poor quality of the hole bottom mud, the mud can be partially drained, added fresh mud qualified to be mud hole bottom sediment thickness and index after meet the requirements, additional holes can be moved to the inner groove segment scum. scum in 段内往复移动孔位,确保每一孔位清孔质量都满足要求后停止清孔,停等一小时后进行全槽段清孔质量验收,合格后拆卸排渣管、风管等相关设备,清孔结束,进行下道工序。排渣管采用外径159mm厚壁钢管,空压机采用排风量不低于13m7s的中压空压机、泥浆净化机处理能力不低于120m3/h。 The segment reciprocated holes, to ensure that each hole hole cleaning quality meet full vat segment Khong quality inspection after stopping hole cleaning, stop and so one hour claim, after passing disassembly scum, duct, and other related equipment, Khong end of the next process. scum using 159mm outside diameter thick-walled steel, medium pressure compressor exhaust air compressor with an amount of not less than 13m7s mud cleaner handling capacity of not less than 120m3 / h.

Claims (6)

1.防渗墙槽段气举法清孔施工工艺是一种用于防渗墙、灌注桩清孔的先进工艺,其特征在于该工艺用压缩空气进行清孔换浆,可完成深达158米的槽孔的清孔工序,具有清孔效率高、清孔质量好且节省大量泥浆的特点。 1. Cutoff Wall Grooves gas lift method is a hole cleaning process for cutoff wall construction, advanced technology pile clear aperture, wherein the process is carried syrup Khong exchange with compressed air, can be completed deep 158 slots meter hole cleaning process, having a high hole cleaning efficiency and hole quality and a good cleaning characteristics save a lot of mud.
2.权利1所述的防渗墙槽段气举法清孔施工工艺,采用Φ 159、Φ 110钢管作为排渣管, 管外附着一定长度的高压风管。 2. The groove as claimed cutoff wall section of the gas lift method is a construction hole cleaning process, using Φ 159, Φ 110 steel as scum, the outer tube is attached a length of high-pressure duct.
3.权利2所述的防渗墙槽段气举法清孔施工工艺,采用风压0.6Mpa左右、风量13方以上的空压机。 Cutoff Wall Grooves of claim 2, said gas lift method Khong construction process, the use of air pressure of about 0.6Mpa, more air volume air compressor 13 side.
4.权利3所述的防渗墙槽段气举法清孔施工工艺,混合器下设深度控制在泥浆下2(T30m 为宜。 Claim 4. The gas cutoff wall section of the groove 3, hole cleaning method cited construction process, in a mixer under the control of the depth of the slurry 2 (T30m appropriate.
5.权利3所述的防渗墙槽段气举法清孔施工工艺,使用泥浆净化机的处理能力要求不低于120m3/min。 Cutoff wall section of the groove 3, 5. The gas lift method Khong construction process, the use of mud cleaner processing capacity requirements of not less than 120m3 / min.
6.以上权利保护期为10年。 6. The above rights are protected for 10 years.
CN2010105533625A 2010-11-12 2010-11-12 Construction process for cleaning holes in groove section of anti-seepage wall by air-lift method CN102465536A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103233693A (en) * 2013-05-08 2013-08-07 中铁隧道集团一处有限公司 Drilling pile foundation secondary hole cleaning device and method
CN103556646A (en) * 2013-09-29 2014-02-05 河北钢铁集团矿业有限公司 Method for forming water shutoff walls in sand and gravel layer
CN105937376A (en) * 2016-06-08 2016-09-14 深圳市宏业基基础工程有限公司 Hole clearing system for drilling construction pile
CN105986576A (en) * 2015-02-11 2016-10-05 甘肃建研岩土工程有限公司 Airflow type bottom cleaning method for cast-in-situ bored pile of dry construction
CN106948354A (en) * 2017-04-24 2017-07-14 中国电建集团西北勘测设计研究院有限公司 Construction method of anti-seepage wall of hydropower station

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS5944427A (en) * 1982-09-07 1984-03-12 Ishikawajima Harima Heavy Ind Co Ltd Sucker for ground-water
CN101109179A (en) * 2007-06-21 2008-01-23 河北建设勘察研究院有限公司 Gas lifting reverse circulation porus cleaning construction method for slurry bulkhead cast-in-situ bored pile
CN101328709A (en) * 2007-06-20 2008-12-24 上海塔奇实业有限公司 Borehole cleaning method and apparatus for fast reverse circulation by using high pressure air
CN101353951A (en) * 2008-09-05 2009-01-28 中建七局第三建筑有限公司 Pile bottom hole clearing system and process of pile bottom hole clearing
CN201605577U (en) * 2009-12-28 2010-10-13 中国核工业华兴建设有限公司 Khong mechanically pile into the hole

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5944427A (en) * 1982-09-07 1984-03-12 Ishikawajima Harima Heavy Ind Co Ltd Sucker for ground-water
CN101328709A (en) * 2007-06-20 2008-12-24 上海塔奇实业有限公司 Borehole cleaning method and apparatus for fast reverse circulation by using high pressure air
CN101109179A (en) * 2007-06-21 2008-01-23 河北建设勘察研究院有限公司 Gas lifting reverse circulation porus cleaning construction method for slurry bulkhead cast-in-situ bored pile
CN101353951A (en) * 2008-09-05 2009-01-28 中建七局第三建筑有限公司 Pile bottom hole clearing system and process of pile bottom hole clearing
CN201605577U (en) * 2009-12-28 2010-10-13 中国核工业华兴建设有限公司 Khong mechanically pile into the hole

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103233693A (en) * 2013-05-08 2013-08-07 中铁隧道集团一处有限公司 Drilling pile foundation secondary hole cleaning device and method
CN103233693B (en) * 2013-05-08 2016-03-30 中铁隧道集团一处有限公司 Pile-based secondary bore hole cleaning hole cleaning apparatus and method
CN103556646A (en) * 2013-09-29 2014-02-05 河北钢铁集团矿业有限公司 Method for forming water shutoff walls in sand and gravel layer
CN103556646B (en) * 2013-09-29 2015-07-08 河北钢铁集团矿业有限公司 Method for forming water shutoff walls in sand and gravel layer
CN105986576A (en) * 2015-02-11 2016-10-05 甘肃建研岩土工程有限公司 Airflow type bottom cleaning method for cast-in-situ bored pile of dry construction
CN105937376A (en) * 2016-06-08 2016-09-14 深圳市宏业基基础工程有限公司 Hole clearing system for drilling construction pile
CN106948354A (en) * 2017-04-24 2017-07-14 中国电建集团西北勘测设计研究院有限公司 Construction method of anti-seepage wall of hydropower station

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