CN105134069B - One kind is related to gas vertical and passes through the anti-well method construction technology in strong rich water rock stratum - Google Patents

One kind is related to gas vertical and passes through the anti-well method construction technology in strong rich water rock stratum Download PDF

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Publication number
CN105134069B
CN105134069B CN201510532310.2A CN201510532310A CN105134069B CN 105134069 B CN105134069 B CN 105134069B CN 201510532310 A CN201510532310 A CN 201510532310A CN 105134069 B CN105134069 B CN 105134069B
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gas
pipe
well
slip casting
vertical
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CN105134069A (en
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汪船
程守业
黄德辉
荆国业
李英全
姜浩亮
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CHONGQING SONGZAO C&E Co Ltd
Beijing Zhongmei Mine Engineering Co Ltd
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CHONGQING SONGZAO C&E Co Ltd
Beijing Zhongmei Mine Engineering Co Ltd
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Abstract

The present invention, which discloses one kind and is related to gas vertical, passes through the anti-well method construction technology in strong rich water rock stratum, comprises the following steps:(1) gas vertical excavates;(2) gas pipe is transferred;(3) bottom of annular space between gas shaft wall and gas tube wall is blocked using closure disk (7);(4) filled after gas vertical.The present invention is by studying lower port annular space method for blocking, innovation filling process, pipe external and internal pressure difference problem and pack densification problem when solving big water burst closure problem, filling, duration and the cost of gas pipe installation are substantially reduced, while has also further widened the application of anti-well rig.

Description

One kind is related to gas vertical and passes through the anti-well method construction technology in strong rich water rock stratum
Technical field
The present invention relates to mining machinery field, more particularly to one kind, which is related to gas vertical and passes through the anti-well method in strong rich water rock stratum, applies Work technique.
Background technology
The safety requirements of state coal Work Safety Supervision Bureau is answered, high methane coal mine must first be taken out and adopt afterwards.After colliery gathers coal-bed gas, Concentrate and ground is pumped into by major diameter gas standpipe (bore 1m or so), then by gas drawing station application, among these gas standpipe Installation and support with backfilling turn into key project.
At present, gas standpipe construction method of installation has two kinds, and one kind is anti-well rig shaft sinking system, and another kind is positive well method. It is more than 2 times of anti-well rig shaft sinking system the durations that the shortcomings that positive well method construction, which is, and engineering cost is also especially high, and advantage is suitable Various formation conditions;Anti- well rig shaft sinking system advantage is short time limit, expense is low, when shortcoming is that rock stratum has a large amount of water bursts, lower port Annular space blocks and gas pipe support with backfilling turns into great difficult problem.
The content of the invention
In view of this, it is related to gas vertical the invention reside in offer one kind and passes through the anti-well method construction technology in strong rich water rock stratum, Pipe external and internal pressure difference problem and pack densification problem, substantially reduce gas and stand when solving big water burst closure problem, filling The duration of pipe installation and cost, while also further widened the application of anti-well rig.
To solve the above problems, the present invention adopts the following technical scheme that:One kind is related to gas vertical and passes through strong rich water rock stratum Anti- well method construction technology, comprises the following steps:
(1) gas vertical excavates;
(2) gas pipe is transferred;
(3) bottom of annular space between gas shaft wall and gas tube wall is blocked using closure disk;
(4) gas vertical support with backfilling.
The above-mentioned gas vertical that is related to passes through the anti-well method construction technology in strong rich water rock stratum, and gas vertical is using anti-in step (1) Well drilling technology is crept into, and the mine shaft rising boring technique comprises the following steps:
(i) guide hole is crept into, and drill bit is crept into from upper entry downward horizontal tunnel, until upper entry and lower horizontal lane Road is penetrated, and broken landwaste is extracted and is discharged into along the annular space between drilling rod and hole wall with direct flushing liquid On entry in set sedimentation basin;
(ii) the drilled guide hole of step (i) is subjected to reaming and forms gas shaft of vertical well, drill bit is from lower entry Upward entry drilling, landwaste are fallen directly in lower entry by deadweight, cleared up using dirt loader or other transporting equipments Transport.
The above-mentioned gas vertical that is related to passes through the anti-well method construction technology in strong rich water rock stratum, and step (2) comprises the following steps:
(a) first segment gas pipe is sling by first cross-arm with crane gear on well head on gas vertical, and will The lower end of first segment gas pipe is put into gas vertical wellhole;
(b) the upper end load of first segment gas pipe is placed on gas vertical on the cross beam of well head with first cross-arm;
(c) the second section gas pipe is sling by second cross-arm with crane gear, and the down tube for saving gas pipe by second The upper orifice butt welding of mouth and first segment gas pipe;
(d) first cross-arm is removed, and the gas pipe after welding is put into gas vertical wellhole by crane gear, Then the upper end load of the second section gas pipe is placed on gas vertical on the cross beam of well head by the second cross-arm;
(e) repeat step (c) and step (d) are until gas pipe is all transferred into gas vertical.
The above-mentioned gas vertical that is related to passes through the anti-well method construction technology in strong rich water rock stratum, in step (a) and step (c), rises Heavy equipment is crane or derrick.
The above-mentioned gas vertical that is related to passes through the anti-well method construction technology in strong rich water rock stratum, and in step (3), closure disk includes upper Hold cylindrical shell, annulus pallet, lower end cylindrical shell, sluicing and closure Grouting Pipe and sluicing and closure slip casting observation tube, the upper end Cylindrical shell includes left half upper end cylindrical shell and right half upper end cylindrical shell, and the annulus pallet includes left semicircle ring pallet and right semi-circle Ring pallet, the lower end cylindrical shell include left half lower end cylindrical shell and right half lower end cylindrical shell;The left half upper end cylindrical shell, institute State left semicircle ring pallet and the left half lower end cylindrical shell is fixedly connected into left half closure disk, the right half upper end cylindrical shell, institute State right semi-circle ring pallet and the right half lower end cylindrical shell is fixedly connected into right half closure disk;The left half lower end cylindrical shell passes through Bolt plate and bolt are fixedly connected with the right half lower end cylindrical shell, the left half lower end cylindrical shell and right half lower end The bolt plate is respectively equipped with cylindrical shell;The lower end of the upper end cylindrical shell and the upper disk surface of the annulus pallet are fixed Connection, the lower card of the annulus pallet are fixedly connected with the upper end of the lower end cylindrical shell, sluicing and the closure Grouting Pipe Upper end and the upper end of the sluicing and closure slip casting observation tube be each passed through mounting hole and be located in the upper end cylindrical shell, it is described The lower end and the lower end of the sluicing and closure slip casting observation tube for sluicing and blocking Grouting Pipe are respectively provided at the lower end cylindrical shell Outside;It is described sluicing and closure Grouting Pipe and it is described sluicing and closure slip casting observation tube by the mounting hole with the left side Semicircular ring pallet or the right semi-circle ring pallet are fixedly connected;The upper orifice of sluicing and closure the slip casting observation tube is higher than described Sluice and block the upper orifice of Grouting Pipe;Seen on the sluicing and closure Grouting Pipe lower end pipe shaft with the sluicing and closure slip casting Examine and be equipped with controlled valve on the pipe shaft of pipe lower end.
The above-mentioned gas vertical that is related to passes through the anti-well method construction technology in strong rich water rock stratum, and step (3) comprises the following steps:
(I) the tight gas pipe of embraced will be blocked;
(II) supported by hydraulic monomer and closure disk is pushed into annular space between gas shaft wall and gas tube wall In;
(III) blocked by the sluicing and the slip casting of closure Grouting Pipe, when cement grout from the sluicing and blocks slip casting When being flowed out in observation tube, stop slip casting and fasten the controlled valve of the sluicing and closure Grouting Pipe, treat that cement grout solidifies Afterwards, the lower port closure of annular space terminates between gas shaft wall and gas tube wall;Sluicing and the closure slip casting is seen It is 5m to examine pipe to enter the height of annular space between gas shaft wall and gas tube wall;The grout cures time is 70~75 small When.
The above-mentioned gas vertical that is related to passes through the anti-well method construction technology in strong rich water rock stratum, and step (4) comprises the following steps:
(A) presbyopia sleeve pipe is transferred;
(B) Grouting Pipe is transferred;
(C) division treats slip casting well section height and calculates cement grout charging quantity;
(D) cement grout is suctioned out and injected from cement stock tank and treat the gas shaft wall of slip casting well section and gas tube wall Between in annular space, and treat that cement grout often raises 5m in slip casting well section, Grouting Pipe liquid outlet will be pulled out in Grouting Pipe and is located at In slip casting well section under cement grout liquid level 0.5~1.0m position, until originally treat slip casting well section grouting filling complete.
The above-mentioned gas vertical that is related to passes through the anti-well method construction technology in strong rich water rock stratum, the presbyopia sleeve pipe in step (A) and step Suddenly the gas pipe in (2) is transferred together, and the attached outside for being welded in gas pipe of presbyopia sleeve pipe, and the axial direction of two adjacent sections presbyopia sleeve pipe Angle less than 2 °, by the way of gas cutting processed by the presbyopia on presbyopia sleeve pipe, and often saves the length of presbyopia sleeve pipe with being spent with the section The equal length of the gas pipe of eye sleeve pipe welding;Presbyopia aperture is 4~5cm.
The above-mentioned gas vertical that is related to passes through the anti-well method construction technology in strong rich water rock stratum, will when transferring Grouting Pipe in step (B) Grouting Pipe is put into presbyopia sleeve pipe and transfers Grouting Pipe along presbyopia sleeve pipe, and gas shaft wall is higher by the liquid outlet of Grouting Pipe Stop decentralization Grouting Pipe when annular space bottom or last time annular pack consolidate 1.0~2.0m of face between gas tube wall.
The above-mentioned gas vertical that is related to passes through the anti-well method construction technology in strong rich water rock stratum, one section of gas vertical for treating slip casting well section After Filling of Annulus Space construction terminates between the borehole wall and gas tube wall, rinse Grouting Pipe and above carry Grouting Pipe until Grouting Pipe Lower nozzle distance treats between the gas shaft wall of slip casting well section and gas tube wall cement grout liquid level 20m in annular space, Upper one carries out next gas shaft wall for treating slip casting well section after cement grout in slip casting well section solidifies 45~50 hours The Filling of Annulus Space mortar depositing construction between gas tube wall.
The beneficial effects of the invention are as follows:
1. the present invention efficiently solves big water burst closure problem during mine shaft rising boring.
2. the present invention efficiently solves the problems, such as pipe external and internal pressure difference and pack densification problem during filling, substantially reduce watt The duration of this standpipe installation and cost.
3. the present invention has further widened the application of anti-well rig.
Brief description of the drawings
Fig. 1 is the present invention relates to the schematic diagram that gas vertical passes through the anti-well method construction technology in strong rich water rock stratum;
Fig. 2 is that gas vertical of the present invention passes through in the anti-well method construction technology in strong rich water rock stratum the side line of vision structure for blocking disk Schematic diagram;
Fig. 3 is that gas vertical of the present invention passes through in the anti-well method construction technology in strong rich water rock stratum the left half closure disk for blocking disk Structural representation;
Fig. 4 is that gas vertical of the present invention passes through in the anti-well method construction technology in strong rich water rock stratum the right half closure disk for blocking disk Structural representation.
In figure:1- grouting pumps;2- Grouting Pipes;3- cross-arms;4- gas pipes;5- cross beams;6- presbyopia sleeve pipes;7- blocks disk; 8- sluices and closure slip casting observation tube;9- concrete support platforms;10- sluices and closure Grouting Pipe;11- hydraulic monomers support; 12- cement stock tanks;Entry under 13-;14- extraction vertical;15- upper ends cylindrical shell;16- annulus pallets;17- lower ends cylinder Shell;18- bolt plates;Half upper end cylindrical shell of a 19- left sides;Half lower end cylindrical shell of a 20- left sides;21- left semicircle ring pallets;22- right half Upper end cylindrical shell;23- right semi-circle ring pallets;Half lower end cylindrical shell of the 24- right sides;25- controlled valves.
Embodiment
For the scheme in the clear explanation present invention, preferred embodiment is given below and is described with reference to the accompanying drawings.
The present embodiment is by taking Chongqing pine algal coal electricity company stone moat ore deposit gas pumping vertical as an example, the construction of the gas pumping vertical Technique comprises the following steps:
(1) gas vertical excavates.
Gas vertical 14 is constructed using anti-well rig shaft sinking system in the present embodiment, by guide hole reaming into a diameter of 1.65m's The pit shaft of gas vertical 14, the depth of gas vertical 14 is 305.33m, and the open-hole rock stratum water yield of gas vertical 14 is 20m3/h, Bottom hole deviation is 0.54%..In guide hole drilling process, thrust and torsion are transmitted to power by rig by promoting mainly oil cylinder and motor Thrust and torsion are transmitted to guide hole drill bit by head, unit head by drilling rod, and hobboing cutter is sheared and broken by rolling extrusion on guide hole drill bit Crushed rocks, and guide hole drill bit is crept into from upper entry downward horizontal tunnel, until upper entry connects with lower entry 13 Insertion is connect, broken landwaste is extracted to arrive side by side with direct flushing liquid along the annular space between drilling rod and hole wall to be located at In sedimentation basin in upper entry.And by guide hole reaming into pit shaft during, rig will by promoting mainly oil cylinder and motor Pulling force and torsion are transmitted to unit head, and pulling force and torsion are transmitted to guide hole drill bit by unit head by drilling rod, and hobboing cutter leads on guide hole drill bit Rolling extrusion is crossed to shear and fractured rock, and guide hole drill bit is crept into from lower 13 upward entry of entry, landwaste is by deadweight Fall directly in lower entry 13, using dirt loader or other transporting equipments etc., cleaning transports in time.
(2) gas pipe 1 is transferred, and is comprised the following steps:
(a) first segment gas pipe 4 is sling by first cross-arm 3 with crane gear on well head on gas vertical 14, And the lower end of first segment gas pipe 4 is put into the wellhole of gas vertical 14;
(b) the upper end load of first segment gas pipe 4 is placed on to the cross beam 5 of well head on gas vertical 14 with first cross-arm 3 On;
(c) second section gas pipe 4 is sling by second cross-arm 3 with crane gear, and second is saved under gas pipe 4 The upper orifice butt welding of the mouth of pipe and first segment gas pipe 4;
(d) first cross-arm 3 is removed, and the gas pipe 4 after welding is put into by the well of gas vertical 14 by crane gear Kong Zhong, then the upper end load of second section gas pipe 4 is placed on the cross beam 5 of well head on gas vertical 14 by the second cross-arm 3;
(e) repeat step (c) and step (d) are until gas pipe 4 is all transferred into gas vertical 14.
In the present embodiment, crane gear uses 3 section 3 using derrick, the gas pipe 4 of the interior decentralization installation of gas vertical 14 Kind specification, wherein, the gas pipe 4 in the bottom 107.23m well sections of gas vertical 14 selects DN1000mm × 22mm spiral welded pipes, Gas pipe 4 in the middle 100m well sections of gas vertical 14 selects DN1000mm × 20mm, in the upper end residue well section of gas vertical 14 Gas pipe 4 select DN1000mm × 16mm spiral welded pipes, pipe joint is welded to connect, and often saves 4 long 10m of gas pipe.
(3) bottom of the annular space between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 is blocked with closure disk 7, including Following steps:
(I) closure disk 7 is held tightly gas pipe 4;
(II) closure disk 7 is pushed into by ring between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 by hydraulic monomer support 11 In shape space;
(III) blocked by the sluicing and the slip casting of closure Grouting Pipe 10, when cement grout from the sluicing and blocks note When being flowed out in slurry observation tube 8, stop slip casting and fasten the controlled valve 25 of the sluicing and closure Grouting Pipe 10, treat cement mortar After liquid solidification, the lower port of annular space is blocked and terminated between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4;The sluicing and envelope The height that stifled slip casting observation tube 8 enters annular space between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 is 5m;During grout cures Between be 70~75 hours.
Wherein, as shown in Fig. 2 in step (3), closure disk 7 includes upper end cylindrical shell 15, annulus pallet 16, lower end cylinder Shell 17, sluice and block Grouting Pipe 10 and sluice and block slip casting observation tube 8, lower end and the circle of the upper end cylindrical shell 15 The upper disk surface of ring pallet 16 is fixedly connected, and the upper end of the lower card of the annulus pallet 16 and the lower end cylindrical shell 17, which is fixed, to be connected Connect, the upper end and the upper end of the sluicing and closure slip casting observation tube 8 of sluicing and the closure Grouting Pipe 10 are each passed through installation Hole is located in the upper end cylindrical shell 15, the lower end of sluicing and the closure Grouting Pipe 10 and the sluicing and closure slip casting observation The lower end of pipe 8 is respectively provided at the outside of the lower end cylindrical shell 17;The sluicing and closure Grouting Pipe 10 and the sluicing and envelope Stifled slip casting observation tube 8 is fixedly connected by the mounting hole with the annulus pallet 16;Sluicing and closure the slip casting observation tube 8 Upper orifice higher than it is described sluicing and closure Grouting Pipe 10 upper orifice;It is described sluicing and closure the lower end pipe shaft of Grouting Pipe 10 on and Controlled valve 25 is equipped with the lower end pipe shaft of sluicing and closure slip casting observation tube 8.
As shown in Figure 3 and Figure 4, the upper end cylindrical shell 15 includes the upper end cylindrical shell 19 of a left side half and right half upper end cylindrical shell 22, the annulus pallet 16 includes left semicircle ring pallet 21 and right semi-circle ring pallet 23, and the lower end cylindrical shell is included under left half Hold cylindrical shell 20 and right half lower end cylindrical shell 24;The left half upper end cylindrical shell 19, the left semicircle ring pallet 21 and the left side Half lower end cylindrical shell 20 is fixedly connected into left half closure disk, the right half upper end cylindrical shell 22, the and of right semi-circle ring pallet 23 The right half lower end cylindrical shell 24 is fixedly connected into right half closure disk;The left half lower end cylindrical shell 20 is bolted plate 18 It is fixedly connected with bolt with the right half lower end cylindrical shell 24, the left half lower end cylindrical shell 20 and the right half lower end cylindrical shell The bolt plate 18 is respectively equipped with 24;The sluicing and closure Grouting Pipe 10 and the sluicing and closure slip casting observation tube 8 are fixedly connected with the left semicircle ring pallet 21.
The closure disk 7 is being pushed into ring between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 with hydraulic monomer support 11 When in shape space, controlled valve 25 and the sluicing and closure note on sluicing and the closure pipe shaft of Grouting Pipe 10 should be first opened The controlled valve 25 on the pipe shaft of observation tube 8 is starched, the closure disk 7 is then pushed into gas vertical with hydraulic monomer support 11 Between 14 boreholes wall and the tube wall of gas pipe 4 in annular space, so not only contribute to the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 it Between annular space water discharge, also reduce and the closure disk 7 be pushed into the difficulty of the annular space.
It is pushed into the closure disk 7 in the annular space between the borehole wall of gas vertical 14 and gas pipe 4, then passes through institute State and sluice and block Grouting Pipe 10 to the annular space slip casting above the closure disk 7, until slurries are let out from described Outflow stops slip casting in water and closure slip casting observation tube 8, and the switch valve closed on sluicing and the closure pipe shaft of Grouting Pipe 10 Door 25, the sluicing and the controlled valve 25 blocked on the pipe shaft of slip casting observation tube 8 are kept it turned on, so as to firedamp drainage vertical The water burst in annular space between 14 boreholes wall and the tube wall of gas pipe 4.
Further, since the borehole wall of gas vertical 14 is not proper cylindrical shape, and the borehole wall of gas vertical 14 and institute Certain gap can be present by stating between the shell wall of upper end cylindrical shell 15 on closure disk 7, thus with cement grout to gas During annular space bottom carries out closure slip casting between the borehole wall of vertical 14 and the tube wall of gas pipe 4, cement grout can along watt Gap outflow between this borehole wall of vertical 14 and the shell wall of upper end cylindrical shell 15, thus the gap is clogged using flexible fabric In order to avoid cement grout flows out, the gap is clogged using cotton yarn in the present embodiment.
By the sluicing and Grouting Pipe 10 is blocked to annular space slip casting knot between gas vertical 14 and the tube wall of gas pipe 4 After beam after 72 hours, to the sluicing and blocked from the upper disk surface of annulus pallet 16 in the range of the upper orifice of slip casting observation tube 8 Cement slurry sets, water burst between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 in annular space only can by the sluicing and Closure slip casting observation tube 8 is leaked, and so far the closure of annular space bottom is completed between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4.
(4) gas vertical support with backfilling, comprises the following steps:
(A) presbyopia sleeve pipe 6 is transferred;
For the ease of subsequently carrying out support with backfilling note to the annular space between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 Slurry construction, when transferring gas pipe 4, the presbyopia sleeve pipe 6 that will act as transferring the passage of Grouting Pipe 2 is transferred together with gas pipe 4, that is, is walked Suddenly (A) implements to complete in step (2).The wherein attached outside for being welded in gas pipe 4 of presbyopia sleeve pipe 6, and two adjacent sections presbyopia sleeve pipe 6 Axial angle be less than 2 °, in order to avoid when presbyopia sleeve pipe 6 is spatially changed direction occur drastically bend and influence under Grouting Pipe 2 Put, in view of this, the method that the present embodiment uses projective iteration, projected in the plane to flower by using the major axis of presbyopia sleeve pipe 6 Eye sleeve pipe 6 positioned, it is smoothly straight with the presbyopia sleeve pipe 6 of welding manner spreading to ensure, it is ensured that Grouting Pipe 2 it is smooth under Put.Wherein, presbyopia sleeve pipe 6 cuts out presbyopia by the way of gas cutting presbyopia on sleeve pipe, and presbyopia aperture is 4~5cm.Making Asymmetric gas cutting should be avoided during presbyopia sleeve pipe 6, in order to avoid make entering for deformation effect Grouting Pipe 2 occur on the long axis direction of presbyopia sleeve pipe 6 Transfer in hole.
(B) Grouting Pipe 2 is transferred, concrete operations are:Annular space bottom between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 After end seal is blocked up successfully, Grouting Pipe 2 is put into presbyopia sleeve pipe 6 and transfers Grouting Pipe 2 along presbyopia sleeve pipe 6, in going out for Grouting Pipe 2 Liquid mouth be higher by between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 annular space bottom or last time annular pack consolidation face 1.0~ Stop decentralization Grouting Pipe 2 during 2.0m.
(C) according to Specific construction requirement and the property of grouting cement grout, the hardening time of such as cement grout, draw Divide and treat slip casting well section height and calculate cement grout charging quantity, to ensure that Grouting Pipe 2 will not be cured in cement during slip casting In slurry, and ensure to pull up the normal cure that Grouting Pipe 2 does not interfere with cement grout upwards;
(D) cement grout is suctioned out and injected from cement stock tank 12 and treat the borehole wall of gas vertical 14 and gas pipe of slip casting well section Between 4 tube walls in annular space, and treat that cement grout often raises 5m in slip casting well section, go out liquid by Grouting Pipe 2 is pulled out in Grouting Pipe 2 Mouthful positioned in slip casting well section under cement grout liquid level 0.5~1.0m position, until originally treat slip casting well section grouting filling complete.
In the present embodiment, the Filling of Annulus Space between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 is from gas vertical Annular space bottom between 14 boreholes wall and the tube wall of gas pipe 4 starts, and highly treating slip casting well section by default slip casting well section is carried out Push up water tube drawing slip casting.Wherein, according to being set in step (C) and the data that are calculated, with cement pump 1 by cement grout from cement Suction out and injected in the annular space between the borehole wall of gas vertical 14 for treating slip casting well section and the tube wall of gas pipe 4 in stock tank 12, connect And treat that cement grout often raises 5m in slip casting well section, the liquid outlet of Grouting Pipe 2 just will be pulled out in Grouting Pipe 2 and is located in slip casting well section 0.5~1.0m position under cement grout liquid level, until originally treating that slip casting well section grouting filling is completed.And in order to ensure gas vertical The total quality of Filling of Annulus Space between 14 boreholes wall and the tube wall of gas pipe 4, the next section of gas vertical 14 for treating slip casting well section Filling of Annulus Space mortar depositing construction between the borehole wall and the tube wall of gas pipe 4 must treat the well of gas vertical 14 of slip casting well section in the preceding paragraph Carried out in annular space between wall and the tube wall of gas pipe 4 after cement grout solidification, wherein concrete operations are:One section is treated slip casting well After Filling of Annulus Space construction between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 of section terminates, rinse Grouting Pipe 2 and will note Slurry pipe 2 above carries until the lower nozzle distance of Grouting Pipe 2 treats the ring between the borehole wall of gas vertical 14 of slip casting well section and the tube wall of gas pipe 4 Cement grout liquid level 20m in shape space, the ring between upper one borehole wall of gas vertical 14 for treating slip casting well section and the tube wall of gas pipe 4 Cement grout carries out next borehole wall of gas vertical 14 for treating slip casting well section and the tube wall of gas pipe 4 after solidifying 48 hours in shape space Between Filling of Annulus Space mortar depositing construction.Such circulate operation, until the whole borehole wall of gas vertical 14 and the tube wall of gas pipe 4 it Between Filling of Annulus Space construction complete.
In the present embodiment, the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 at the upper well head of gas vertical 14 and lower well head Between annular space use C20 concretings.
Because the depth of the annular space between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 is generally tens of rice to hundreds of Rice, Grouting Pipe 2 be difficult directly transfer in projected depth, such as the present embodiment the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 it Between annular space depth reach 305.33m, if without the downward putting device of Grouting Pipe 2, the lower nozzle of Grouting Pipe 2 is difficult direct decentralization to setting The depth of meter, this just between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4 Filling of Annulus Space construction bring greatly Trouble, have impact on the quality of the Filling of Annulus Space between the whole borehole wall of gas vertical 14 and gas pipe 4 tube wall.The present embodiment In, the use of presbyopia sleeve pipe 6 provides decentralization passage for the decentralization of Grouting Pipe 2, consequently facilitating Grouting Pipe 2 can be transferred to smoothly Default slip casting position, improve decentralization efficiency and the decentralization degree of accuracy of Grouting Pipe 2, so as to improve the borehole wall of gas vertical 14 with The speed of application of Filling of Annulus Space between the tube wall of gas pipe 4, it is also beneficial to the borehole wall of raising gas vertical 14 and is managed with gas pipe 4 The quality of Filling of Annulus Space between wall.And the presbyopia on presbyopia sleeve pipe 6 meets that cement grout is without hindrance from presbyopia sleeve pipe 6 In annular space between the borehole wall of ground outflow injection gas vertical 14 and the tube wall of gas pipe 4.
After the lower port closure of the annular space is completed, rock stratum water burst is observed by the sluicing and closure slip casting Pipe 8 is discharged, and when carrying out filling and injecting slurry construction to the annular space between the borehole wall of gas vertical 14 and the tube wall of gas pipe 4, institute Stating the controlled valve 25 for sluicing and blocking on slip casting observation tube 8 must be tamping, now the borehole wall of gas vertical 14 and gas pipe 4 The water surface in annular space between tube wall can rise rapidly, until hydrostatic level is reached, in order to keep the external and internal pressure of gas pipe 4 Balance, it need to be poured water in the controlled valve 25 on closing the pipe shaft of sluicing and closure slip casting observation tube 8 into gas pipe 4, with Ensure the internal and external pressure balance of gas pipe 4, and ensure the internal and external pressure balance of gas pipe, in filling afterwards, monitor at any time Water level inside and outside gas pipe 4.
And it is only 120 days that the construction of the present embodiment gas pumping vertical, which started to final acceptance of construction, actual construction time, and pure construction Time only has 70 days, but construction quality has reached excellent grade.Therefore gas shaft construction is carried out using the present invention, not only Can effectively solve big water burst closure problem during mine shaft rising boring, but also can effectively solve the problems, such as pipe external and internal pressure difference during filling With pack densification problem, duration and the cost of gas pipe installation are substantially reduced, while has further widened anti-well and has bored The application of machine.
Above-described embodiment is only intended to clearly illustrate the invention example, and not has to the invention The restriction of body embodiment.For those of ordinary skill in the field, can also make on the basis of the above description Other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all the present invention Guarantor of any obvious changes or variations extended out within spirit and principle still in the invention claim Protect among scope.

Claims (8)

1. one kind, which is related to gas vertical, passes through the anti-well method construction technology in strong rich water rock stratum, it is characterised in that comprises the following steps:
(1) gas vertical (14) excavates:Crept into mine shaft rising boring technique, the mine shaft rising boring technique comprises the following steps:
(i) guide hole is crept into, and drill bit is crept into from upper entry downward horizontal tunnel (13), until upper entry and lower horizontal lane Road (13) is penetrated, and broken landwaste is extracted with direct flushing liquid and arranged along the annular space between drilling rod and hole wall Enter in sedimentation basin set on upper entry;
(ii) the drilled guide hole of step (i) is subjected to reaming and forms gas shaft of vertical well, drill bit is from lower entry (13) Upward entry drilling, landwaste is fallen directly in lower entry (13) by deadweight, using dirt loader or other transporting equipments Cleaning transports;
(2) gas pipe (4) is transferred;
(3) bottom of annular space between gas vertical (14) borehole wall and gas pipe (4) tube wall is blocked using closure disk (7); Blocking disk (7) includes upper end cylindrical shell (15), annulus pallet (16), lower end cylindrical shell (17), sluicing and closure Grouting Pipe (10) With sluicing and closure slip casting observation tube (8), the upper end cylindrical shell (15) includes left half upper end cylindrical shell (19) and right half upper end Cylindrical shell (22), the annulus pallet (16) include left semicircle ring pallet (21) and right semi-circle ring pallet (23), the lower end circle Post shell (17) includes left half lower end cylindrical shell (20) and right half lower end cylindrical shell (24);The left half upper end cylindrical shell (19), institute State left semicircle ring pallet (21) and the left half lower end cylindrical shell (20) is fixedly connected into left half closure disk, the right half upper end circle Post shell (22), the right semi-circle ring pallet (23) and the right half lower end cylindrical shell (24) are fixedly connected into right half closure disk;Institute State left half lower end cylindrical shell and be bolted plate (18) and bolt and be fixedly connected with the right half lower end cylindrical shell (24), it is described The bolt plate (18) is respectively equipped with left half lower end cylindrical shell (20) and the right half lower end cylindrical shell (24);On described The lower end of end cylindrical shell (15) is fixedly connected with the upper disk surface of the annulus pallet (16), the lower card of the annulus pallet (16) Be fixedly connected with the upper end of the lower end cylindrical shell (17), it is described sluicing and closure Grouting Pipe (10) upper end and it is described sluicing and The upper end of closure slip casting observation tube (8) is each passed through mounting hole and is located in the upper end cylindrical shell (15), the sluicing and closure The lower end of Grouting Pipe (10) and the lower end of the sluicing and closure slip casting observation tube (8) are respectively provided at the lower end cylindrical shell (17) Outside;The sluicing and closure Grouting Pipe (10) and the sluicing and closure slip casting observation tube (8) are equal by the mounting hole It is fixedly connected with the left semicircle ring pallet (21) or the right semi-circle ring pallet (23);Sluicing and closure the slip casting observation tube (8) upper orifice is higher than the sluicing and the upper orifice of closure Grouting Pipe (10);Described sluicing and closure Grouting Pipe (10) lower end Controlled valve (25) is equipped with pipe shaft and on the sluicing and closure slip casting observation tube (8) lower end pipe shaft;
(4) gas vertical support with backfilling.
2. the gas vertical according to claim 1 that is related to passes through the anti-well method construction technology in strong rich water rock stratum, it is characterised in that Step (2) comprises the following steps:
(a) first segment gas pipe (4) is hung by first cross-arm (3) with crane gear on well head on gas vertical (14) Rise, and the lower end of first segment gas pipe (4) is put into gas vertical (14) wellhole;
(b) the upper end load of first segment gas pipe (4) is placed on to the cross beam of well head on gas vertical (14) with first cross-arm (3) (5) on;
(c) the second section gas pipe (4) is sling by second cross-arm (3) with crane gear, and gas pipe (4) is saved by second The upper orifice butt welding of lower nozzle and first segment gas pipe (4);
(d) first cross-arm (3) is removed, and the gas pipe (4) after welding is put into by gas vertical (14) by crane gear In wellhole, the upper end load of the second section gas pipe (4) is then placed on to the well of well head on gas vertical (14) by the second cross-arm (3) On word beam (5);
(e) repeat step (c) and step (d) are until gas pipe (4) is all transferred into gas vertical (14).
3. the gas vertical according to claim 2 that is related to passes through the anti-well method construction technology in strong rich water rock stratum, it is characterised in that In step (a) and step (c), crane gear is crane or derrick.
4. the gas vertical according to claim 1 that is related to passes through the anti-well method construction technology in strong rich water rock stratum, it is characterised in that Step (3) comprises the following steps:
(I) closure disk (7) is held tightly gas pipe (4);
(II) by hydraulic monomer support (11) will block disk (7) be pushed into gas vertical (14) borehole wall and gas pipe (4) tube wall it Between in annular space;
(III) blocked by the sluicing and closure Grouting Pipe (10) slip casting, when cement grout from the sluicing and blocks slip casting When being flowed out in observation tube (8), stop slip casting and fasten the controlled valve (25) of the sluicing and closure Grouting Pipe (10), treat water After slurry liquid solidification, the lower port of annular space is blocked and terminated between gas vertical (14) borehole wall and gas pipe (4) tube wall;It is described Sluice and block the height that slip casting observation tube (8) enters annular space between gas vertical (14) borehole wall and gas pipe (4) tube wall For 5m;The grout cures time is 70~75 hours.
5. the gas vertical according to claim 1 that is related to passes through the anti-well method construction technology in strong rich water rock stratum, it is characterised in that Step (4) comprises the following steps:
(A) presbyopia sleeve pipe (6) is transferred;
(B) Grouting Pipe (2) is transferred;
(C) division treats slip casting well section height and calculates cement grout charging quantity;
(D) cement grout is suctioned out and injected from cement stock tank (12) and treat gas vertical (14) borehole wall and gas pipe of slip casting well section (4) between tube wall in annular space, and treat that cement grout often raises 5m in slip casting well section, Grouting Pipe will be pulled out in Grouting Pipe (2) (2) liquid outlet positioned in slip casting well section under cement grout liquid level 0.5~1.0m position, until originally treat that slip casting well section slip casting is filled Complete into.
6. the gas vertical according to claim 5 that is related to passes through the anti-well method construction technology in strong rich water rock stratum, it is characterised in that Presbyopia sleeve pipe (6) in step (A) is transferred together with the gas pipe (4) in step (2), and presbyopia sleeve pipe (6) is attached is welded in gas The outside of (4) is managed, and the axial angle of two adjacent sections presbyopia sleeve pipe (6), less than 2 °, the presbyopia on presbyopia sleeve pipe (6) uses gas cutting Mode process, and often save presbyopia sleeve pipe (6) length with and the section presbyopia sleeve pipe (6) weld gas pipe (4) length phase Deng;Presbyopia aperture is 4~5cm.
7. the gas vertical according to claim 6 that is related to passes through the anti-well method construction technology in strong rich water rock stratum, it is characterised in that In step (B) during decentralization Grouting Pipe (2), Grouting Pipe (2) is put into presbyopia sleeve pipe (6) and by Grouting Pipe (2) along presbyopia sleeve pipe (6) transfer, annular space bottom between gas vertical (14) borehole wall and gas pipe (4) tube wall is higher by the liquid outlet of Grouting Pipe (2) End or last time annular pack stop decentralization Grouting Pipe (2) when consolidating 1.0~2.0m of face.
8. passing through the anti-well method construction technology in strong rich water rock stratum according to any described gas vertical that is related to of claim 5~7, it is special Sign is that Filling of Annulus Space, which is constructed, between one section of gas vertical (14) borehole wall for treating slip casting well section and gas pipe (4) tube wall ties Shu Hou, rinse Grouting Pipe (2) and above carry Grouting Pipe (2) until Grouting Pipe (2) lower nozzle distance treats that the gas of slip casting well section is stood Cement grout liquid level 20m in annular space between well (14) borehole wall and gas pipe (4) tube wall, upper one is treated cement in slip casting well section Grout cures are carried out after 45~50 hours between next gas vertical (14) borehole wall for treating slip casting well section and gas pipe (4) tube wall Filling of Annulus Space mortar depositing construction.
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