CN101251018A - Subsection retrusive slip-casting method for porthole slurry-stop mixed double-pipe - Google Patents
Subsection retrusive slip-casting method for porthole slurry-stop mixed double-pipe Download PDFInfo
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- CN101251018A CN101251018A CNA2008100495278A CN200810049527A CN101251018A CN 101251018 A CN101251018 A CN 101251018A CN A2008100495278 A CNA2008100495278 A CN A2008100495278A CN 200810049527 A CN200810049527 A CN 200810049527A CN 101251018 A CN101251018 A CN 101251018A
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Abstract
The invention provides a sectional retreating grouting method for a mixed duplex pipe on the outside of an orifice stop-grouting pipe, comprising the following technological steps that: a shallow hole is drilled on a grouting wall (13) by utilization of a drilling machine at first; a drill rod is retreated; an orifice pipe (11) is arranged and then fixed on the orifice wall by utilization of anchor agents (12); the drill rod with a single drill bit and the structure of an inner sleeve and an outer sleeve is adopted for drilling; one end of the orifice pipe positioned on the outside of the drill hole is connected with a drainage (8) and a water inrush resistant device (6) during the drilling process; tail ends of both an inner pipe (2) and an outer pipe (3) of the drill rod are connected with water supply pipes; drilling is performed through the water inrush resistant device, the drainage and the orifice pipe until the designed drilling depth is reached; the water inrush resistant device is disassembled; a hollow pressure plate (5) and a stop-grouting plug (7) are sleeved on the drill rod; the water supply pipes on tail ends of the inner pipe and the outer pipe are respectively connected with a cement slurry supply pipe and a water glass slurry supply pipe; grouting is performed and cement slurry is driven to be ejected from the front of the drill bit along the inner pipe, and simultaneously the cement slurry and water glass slurry are ejected respectively from a water and slurry outlet hole (16) and a water and slurry outlet hole (17) on the front section of the inner pipe and the outer pipe, mixed on the outside of the pipes and then enter into the stratum; when the designed grouting quantity is reached, the drill rod is released by the stop-grouting plug; after the drill rod is retreated for a section of distance, the stop-grouting plug is sealed again, and a gap between the drainage and the outer pipe is grouted continuously; in such manner.
Description
Technical field
The invention belongs to tunnel and underground construction weak surrounding rock pre-grouting and reinforce and water-plugging technique, mainly propose a kind of aperture and only mix two-tube segmentation retrusive grouting method outside the slurry pipe.
Background technology
In the weak broken water bearing ground, carry out tunnel and underground engineering construction, the problem of easy appearance is the country rock large deformation and caves in and excavate face water burst, prominent mud, jeopardize personnel, device security, cause casualty accident, cause that the face of land caves in when serious, groundwater table decreasing influences resident's normal life, and ground environment is damaged.In order to guarantee construction safety, stratum consolidation and shutoff method commonly used both at home and abroad at present are slip casting method, slip casting method is exactly by certain pressure a certain amount of gelling material to be injected the rock stratum or the soil body, make that it flows in formation fractures or soil body space, diffusion, filling, fixed, be formed with the adhesive bond of certain intensity and low permeability, strengthening stratum, shutoff underground water, thereby improve the self-stabilization time of country rock, for the construction of supporting and protection structure gains time, creates conditions.Double-tube method slip casting is one of leading reinforcement means in stratum relatively more commonly used both at home and abroad at present.Two bit bores are adopted in present double-tube method slip casting, and the little drill bit that connects with interior pipe and the big drill bit that connects outer tube are not in one plane managed moment of torsion in when preventing hard rock too greatly and the deformed damaged that is distorted; And this kind structure makes boulder or particle easily enter and be stuck between the large and small drill bit, and little drill bit is stuck; Cement paste and water glass slurries are ejected in drill bit the place ahead and are mixed by little drill bit, big drill bit respectively, make cement paste mix inhomogeneous with the water glass slurries and easily cause water outlet (slurry) hole plug of slurries with drill bit; Existing in addition its injection slurry of two-tube grouting method flows out from the aperture easily, influences grouting pressure and makes slurries can't enter the stratum, makes slip casting effect be difficult to guarantee.
Summary of the invention
Purpose of the present invention promptly is to propose a kind of aperture only to mix two-tube segmentation retrusive grouting method outside the slurry pipe, and the bit freezing problem of solution when two-tube slip casting makes the mixing of slurries and grouting pressure be guaranteed simultaneously, improves slip casting effect.
The processing step of the inventive method is: get out shallow bore hole with rig on wall for grouting earlier, withdraw from drilling rod, orifice tube is installed also to be fixed on the port wall with the anchoring agent, adopt single drill bit, the drilling rod boring of internal and external casing structure, orifice tube is positioned at the outer end connection dewatering installation of boring during boring, anti-gushing water device, the interior pipe of drilling rod, the outer tube tail end all connects feed pipe, by anti-gushing water device, dewatering installation, orifice tube boring, boring is inwardly managed simultaneously, outer tube supply water and make press water along interior pipe from drill bit anterior ejection simultaneously along interior pipe, the water outlet slurry outlet that outer tube sets sprays around outer wall rock dust, slag particle is gone out; Boring is to designing hole depth; The one joint drilling rod that will be positioned at the orifice tube outer end is taken apart from rig, remove anti-gushing water device, on drilling rod, be nested with hollow platen and stop grouting plug, and its miner diameter end of stop grouting plug that makes hollow frustum structure is positioned at the pipe of dewatering installation, and the hollow platen is positioned at the stop grouting plug rear end and is connected with the flange of dewatering installation by bolt; The feed pipe of interior pipe, outer tube tail end is connected with cement grout, water glass slurries flow inlet road respectively, make stop grouting plug seal gap between dewatering installation and the drilling rod outer tube forward, slip casting and make cement grout along interior pipe from drill bit anterior ejection simultaneously cement grout, water glass slurries respectively from the water outlet slurry outlet ejection of interior pipe, outer tube leading portion and after the outer mixing of pipe, enter the stratum, after reaching the design grouting amount, stop grouting plug is retreated loosen drilling rod; Slip casting is continued in the gap that drilling rod makes stop grouting plug seal forward between dewatering installation and the outer tube behind the pipe, outer tube slow astern segment distance promptly again, and so slip casting is one section, the slow astern section, and one section of slip casting is until the slip casting of finishing this hole again.
The two-tube segmentation retrusive grouting method of the outer mixing of slurry pipe is ended in aperture proposed by the invention, and it adopts single drill bit double hose drilling rod boring, the slip casting of segmentation retrusive, efficiently solve the existing existing problem of double hose slip casting, during slip casting injection slurry respectively from the drill bit front portion, ejection and mix and make slurries mix and guaranteed grouting quality around the boring to boring; Adopt the stop grouting plug closed orifices to make slurries not flow out, guaranteed the pressure and the slip casting effect of slip casting, simplified construction technology, improved slip casting efficient from the aperture.
Description of drawings
Fig. 1-Fig. 5 is the processing step schematic diagram of grouting method of the present invention.
Among the figure, 1,4, water inlet pipe, 2, interior pipe, 3, outer tube, 5, hollow platen, 6, anti-gushing water device, 7, stop grouting plug, 8, dewatering installation, 9, rig, 10, snap joint, 11, orifice tube, 12, the anchoring agent, 13, wall for grouting, 14, boring, 15, reinforce soil layer, 16, interior pipe water outlet slurry outlet, 17, outer tube water outlet slurry outlet, 18, drill bit, 19, cement mortar.
The specific embodiment
In conjunction with the accompanying drawings the embodiment of the invention is illustrated:
The processing step of grouting method proposed by the invention is:
As shown in Figure 1, step 1 is bored shallow bore hole.After rig 9 is in place, adjusts the rig angle according to position of opening and data of holes drilled and satisfy the design boring requirement, boring 1.8m.
As shown in Figure 2, step 2 withdraws from drilling rod, and orifice tube 11 and dewatering installation 8, anti-gushing water device 6 are installed.Orifice tube 11 adopts the seamless steel pipe processing and fabricating, end welding snap joint 10, other end cement mortar 19 shutoff 20cm.Begin to twine flax silk at orifice tube apart from 30cm place, snap joint end before installing and become spindle, and the aperture is put in anchoring agent 12, adopt rig 9 that orifice tube 11 is headed in the boring, orifice tube stays 20cm outward; Anti-gushing water device 6 and dewatering installation 8 are installed; After orifice tube 11 is installed fixed finishing, dewatering installation 8 and anti-gushing water device 6 usefulness flange are coupled together and be connected on the orifice tube 11 by snap joint 10; Snap joint 10, anti-gushing water device 6, dewatering installation 8 are the parts that generally adopt in the constructing tunnel device.
As shown in Figure 3, step 3 boring.By anti-gushing water device 6, dewatering installation 8 and orifice tube 11 begin boring, adopt single drill bit, inner and outer pipes bushing type drilling rod, interior pipe front end is communicated with the water outlet slurry outlet of drill bit, interior pipe 2, the water outlet slurry outlet 16 that has a plurality of circle distribution of many rows on the outer tube 3 leading portion tube walls, 17, water outlet slurry outlet 16 corresponding aperture on outer tube on the wherein corresponding inner pipe wall, and the water outlet slurry outlet of interior pipe is communicated with perforate on the outer tube, constitute water outlet pulp passage, spray (the water outlet slurry outlet 17 on the outer tube wall is for being provided with separately) from the outer tube perforate thereby make from the press water or the injection slurry of interior pipe water outlet slurry outlet 16 ejections; Tail end at interior pipe 2, outer tube 3 is connected with water inlet pipe 1,4 respectively, and feed pipe supplies water during boring, and the water inlet pipe 1,4 of pipe, outer tube tail end all is communicated with supply channel in being about to; Press water anterior ejection and outwards spray along interior pipe 2 from drill bit from the water outlet slurry outlet 16,17 of interior pipe, outer tube leading portion tube wall, rock sand particle in the boring is gone out from dewatering installation 8 discharges, the press water that pipe, outer tube wall outwards spray simultaneously can prevent that the rock sand particle from entering in the pipe along the water outlet slurry outlet, and boring is to designing hole depth.
As shown in Figure 4, step 4 slip casting.The joint drilling rod that orifice tube is outer is taken apart from rig, and remove and prevent gushing water device 6, on drilling rod, be nested with hollow platen 5 and stop grouting plug 7, and stop grouting plug 7 its miner diameter ends that make hollow frustum structure are positioned at the pipe of dewatering installation 8, and hollow platen 5 is positioned at stop grouting plug 7 rear ends and is connected by the flange of bolt with dewatering installation 8; Water inlet pipe 1 and cement paste pipeline connection with pipe in the drilling rod, the water inlet pipe 4 of outer tube is communicated with the water glass slurry pipe line, tightening the bolt that hollow platen 5 is connected with dewatering installation 8 makes stop grouting plug 7 forward that the envelope of the gap between dewatering installation and the outer tube 3 is tight, beginning slip casting, 18 front portions spray simultaneously cement grout, water glass slurries forward respectively from water outlet slurry outlet 16,17 ejections of interior pipe 2, outer tube 3 leading portions and enter the stratum after the outer mixing of pipe to cement grout along interior pipe from drill bit, and the slurries that flow to the aperture along drill hole wall are by stop grouting plug 7 shutoff.After slip casting reaches requirement, stop slip casting.
As shown in Figure 5, retreat slip casting.Make by reverse turn bolt that the hollow platen is stepped back, stop grouting plug loosens drilling rod, with drilling rod slow astern segment distance, remove unnecessary drilling rod outside the hole, make stop grouting plug seal gap between dewatering installation 8 and the drilling rod outer tube forward again, carry out slip casting, finish the slip casting of this section boring.
So, one section of slip casting, the slow astern section, one section of slip casting is until the slip casting of finishing this hole again.
Claims (1)
1, the two-tube segmentation retrusive grouting method of the outer mixing of slurry pipe is ended in a kind of aperture, it is characterized in that: on wall for grouting (13), get out shallow bore hole with rig earlier, withdraw from drilling rod, orifice tube (11) is installed also to be fixed on the port wall with anchoring agent (12), adopt single drill bit, the drilling rod boring of internal and external casing structure, orifice tube during boring (11) is positioned at the outer end of boring and connects dewatering installation (8), anti-gushing water device (6), the interior pipe (2) of drilling rod, outer tube (3) tail end all connects feed pipe, by anti-gushing water device (6), dewatering installation (8), orifice tube (11) boring, boring is inwardly managed simultaneously, outer tube supply water and make press water along interior pipe from drill bit anterior ejection simultaneously along interior pipe, the water outlet slurry outlet (16) (17) that outer tube sets sprays around outer wall rock dust, slag particle is gone out; Boring is to designing hole depth; The one joint drilling rod that will be positioned at orifice tube (11) outer end is taken apart from rig, remove anti-gushing water device (6), on drilling rod, be nested with hollow platen (5) and stop grouting plug (7), and its miner diameter end of stop grouting plug that makes hollow frustum structure is positioned at the pipe of dewatering installation (8), and hollow platen (5) is positioned at stop grouting plug (7) rear end and is connected by the flange of bolt with dewatering installation (8); The feed pipe of interior pipe, outer tube tail end is connected with cement grout, water glass slurries flow inlet road respectively, make stop grouting plug (7) seal gap between dewatering installation (8) and the drilling rod outer tube forward, slip casting and make cement grout along interior pipe from drill bit anterior ejection simultaneously cement grout, water glass slurries respectively from water outlet slurry outlet (16) (17) ejection of interior pipe, outer tube leading portion and after the outer mixing of pipe, enter the stratum, after reaching the design grouting amount, stop grouting plug (7) is retreated loosen drilling rod; Slip casting is continued in the gap that drilling rod makes stop grouting plug seal forward between dewatering installation (8) and the outer tube (3) behind the pipe, outer tube slow astern segment distance promptly again, one section of slip casting like this, the slow astern section, one section of slip casting is until the slip casting of finishing this hole again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008100495278A CN101251018B (en) | 2008-04-14 | 2008-04-14 | Subsection retrusive slip-casting method for porthole slurry-stop mixed double-pipe |
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| CN2008100495278A CN101251018B (en) | 2008-04-14 | 2008-04-14 | Subsection retrusive slip-casting method for porthole slurry-stop mixed double-pipe |
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| CN104499487A (en) * | 2014-12-25 | 2015-04-08 | 周志宏 | Double-liquid stirring grouting system |
| CN104948133A (en) * | 2015-05-19 | 2015-09-30 | 山东大学 | Grouting plugging device suitable for high-pressure mass-flow gushing water and technology thereof |
| CN106638606A (en) * | 2016-12-29 | 2017-05-10 | 中国葛洲坝集团基础工程有限公司 | Rapid grouting method of deep overburden layer |
| CN107023302A (en) * | 2017-05-26 | 2017-08-08 | 华东交通大学 | A kind of micro-disturbance advanced tubule device and its application method |
| CN108252719A (en) * | 2017-12-29 | 2018-07-06 | 中铁隆工程集团有限公司 | Plastic flow modeling shape red clay layer construction method is worn under a kind of urban shallow tunnel |
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| CN109098687A (en) * | 2018-10-11 | 2018-12-28 | 中国石油大学(华东) | Single stop grouting plug retrusive sublevel grouting device and method suitable for crack rock |
| CN113463620A (en) * | 2021-06-17 | 2021-10-01 | 浙江鸿翔建设集团股份有限公司 | Intertidal zone sand nature foundation compaction slip casting device |
| CN113529721A (en) * | 2021-07-15 | 2021-10-22 | 中国海洋大学 | Combined drilling and grouting pipe for grouting reinforcement of island reef weak stratum and construction method |
| CN114086989A (en) * | 2021-11-23 | 2022-02-25 | 福建工程学院 | Tunnel mud outburst disaster treatment equipment and method |
| CN114458045A (en) * | 2022-03-09 | 2022-05-10 | 鞍山益安房屋修缮有限责任公司 | Grouting plugging method for water leakage of window of hard decoration building and curved grouting needle |
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| CN1110754A (en) * | 1994-08-08 | 1995-10-25 | 何庆林 | Large-head anchor rod construction method and special drilling machine |
| CN100570126C (en) * | 2006-03-07 | 2009-12-16 | 中国京冶工程技术有限公司 | The aperture grout stopping device device of comprehensive high pressure jet grouting worker method |
| CN100570128C (en) * | 2007-03-28 | 2009-12-16 | 中国京冶工程技术有限公司 | The comprehensive high pressure jet grouting job practices of fenestrated grout stopping device |
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- 2008-04-14 CN CN2008100495278A patent/CN101251018B/en active Active
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| CN104499487A (en) * | 2014-12-25 | 2015-04-08 | 周志宏 | Double-liquid stirring grouting system |
| CN104948133B (en) * | 2015-05-19 | 2017-10-31 | 山东大学 | The slip casting plugging device and its technique of a kind of suitable high-pressure high-flow drilling water burst |
| CN104948133A (en) * | 2015-05-19 | 2015-09-30 | 山东大学 | Grouting plugging device suitable for high-pressure mass-flow gushing water and technology thereof |
| CN106638606B (en) * | 2016-12-29 | 2019-08-23 | 中国葛洲坝集团基础工程有限公司 | A kind of quick grouting method of deep covering layer |
| CN106638606A (en) * | 2016-12-29 | 2017-05-10 | 中国葛洲坝集团基础工程有限公司 | Rapid grouting method of deep overburden layer |
| CN107023302B (en) * | 2017-05-26 | 2023-08-15 | 华东交通大学 | Micro-disturbance advance small catheter device and application method thereof |
| CN107023302A (en) * | 2017-05-26 | 2017-08-08 | 华东交通大学 | A kind of micro-disturbance advanced tubule device and its application method |
| CN108252719A (en) * | 2017-12-29 | 2018-07-06 | 中铁隆工程集团有限公司 | Plastic flow modeling shape red clay layer construction method is worn under a kind of urban shallow tunnel |
| CN108252719B (en) * | 2017-12-29 | 2019-11-15 | 中铁隆工程集团有限公司 | Plastic flow modeling shape red clay layer construction method is worn under a kind of urban shallow tunnel |
| CN108301769A (en) * | 2018-01-18 | 2018-07-20 | 北京地矿工程建设有限责任公司 | A kind of RW types horizontal well construction method and its drilling tool used |
| CN109098687A (en) * | 2018-10-11 | 2018-12-28 | 中国石油大学(华东) | Single stop grouting plug retrusive sublevel grouting device and method suitable for crack rock |
| CN109098687B (en) * | 2018-10-11 | 2023-09-05 | 山东大学 | Single-stop-grouting-plug retreating type segmented grouting device and method applicable to fractured rock mass |
| CN113463620A (en) * | 2021-06-17 | 2021-10-01 | 浙江鸿翔建设集团股份有限公司 | Intertidal zone sand nature foundation compaction slip casting device |
| CN113529721B (en) * | 2021-07-15 | 2022-04-19 | 中国海洋大学 | Combined drilling and grouting pipe for grouting reinforcement of island reef weak stratum and construction method |
| CN113529721A (en) * | 2021-07-15 | 2021-10-22 | 中国海洋大学 | Combined drilling and grouting pipe for grouting reinforcement of island reef weak stratum and construction method |
| CN114086989A (en) * | 2021-11-23 | 2022-02-25 | 福建工程学院 | Tunnel mud outburst disaster treatment equipment and method |
| CN114458045A (en) * | 2022-03-09 | 2022-05-10 | 鞍山益安房屋修缮有限责任公司 | Grouting plugging method for water leakage of window of hard decoration building and curved grouting needle |
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