CN209025677U - A kind of water conductive fault comprehensive treatment parallel construction system - Google Patents
A kind of water conductive fault comprehensive treatment parallel construction system Download PDFInfo
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- CN209025677U CN209025677U CN201821612215.9U CN201821612215U CN209025677U CN 209025677 U CN209025677 U CN 209025677U CN 201821612215 U CN201821612215 U CN 201821612215U CN 209025677 U CN209025677 U CN 209025677U
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Abstract
The utility model provides a kind of water conductive fault comprehensive treatment parallel construction system, and parallel construction system includes: high pressure deep hole grouting system, and high pressure deep hole grouting system is located on the outside of tunnel in the rock mass of surrounding；High pressure deep hole grouting system includes high pressure deep hole grouting aperture apparatus, and high pressure deep hole grouting aperture apparatus includes first sleeve, and first sleeve is arranged in the rock stratum around tunnel, for providing positioning and support；Grouting with small pipe system, grouting with small pipe system are located at high pressure deep hole grouting system memory, and grouting with small pipe system is connected to the inner wall in tunnel；High pressure deep hole grouting system with grouting with small pipe system is parallel on the outside of tunnel constructs simultaneously；The method that the utility model uses high pressure deep hole grouting and grouting with small pipe parallel construction carries out so that grouting with small pipe is synchronous while high pressure deep hole grouting；The method that high pressure deep hole grouting uses three-wheel slip casting simultaneously, ductule uses the construction method of class interval, so that water conductive fault is effectively administered.
Description
Technical field
The utility model belongs to full section of tunnel slurry injection technique field, and in particular to a kind of water conductive fault comprehensive treatment is parallel
Construction system.
Background technique
Full section of tunnel slurry injection technique is that poor different of the soil properties such as weak water rich strata, crushed zone was directed in Tunnel Engineering
Normal section frequently with construction method, by carrying out the work that slip casting plays soil mass consolidation and waterproof to tunnel surrounding ductule of constructing
With, at present during on-site construction, these methods tool that lithology observation method of comparison, testization method etc. is usually taken, but uses in the past
There is the features such as project amount is big, costly, accuracy rate is low.
It is mainly mining under safe waterpressure of aquifer coal seam that coal master, which mines, at present, and it is about 1 MPa, coal seam that seat earth, which bears Ordovician karst water pressure,
It is about 40~60m with Ordovician karst water distance, since coal seam floor grey watery difficult to understand is strong and mature fault, safe working is by bottom plate ash difficult to understand
The threat of water, national mine water inrush data show that 70% water inrush accident all occurs during tunnelling in recent years, tunnel
Water inrush accident is especially easily sent out when encountering tomography conducting Ordovician karst water in the process.It is controlled using the tomography design method based on previous bottom plate admittedly
Manage the two tomographies administer it is long in time limit, effect is undesirable, although certain tomography drops are only 3m, the fault hydraulic conductivity is strong,
Preceding prospecting bit hole water yield is high, and meet head on the position back water outlet 25m that drills3/ h, execution conditions are poor, and band is administered to it in grieshoch position difficult to understand
Great difficulty is carried out.
Accordingly, it is desirable to provide a kind of be directed to the insufficient water conductive fault comprehensive treatment parallel construction system of the above-mentioned prior art.
Utility model content
The purpose of this utility model is to provide a kind of water conductive fault comprehensive treatment parallel construction system and construction method with
At least solve at present the tomography design method based on solid bottom plate to administer tomography is long in time limit, effect is undesirable, project amount is big, expense
With the low problem of high, accuracy rate.
To achieve the goals above, the utility model provides the following technical solutions:
A kind of water conductive fault comprehensive treatment parallel construction system, the parallel construction system include:
High pressure deep hole grouting system, the high pressure deep hole grouting system are located on the outside of tunnel in the rock mass of surrounding；The height
Pressing deep hole grouting system includes high pressure deep hole grouting aperture apparatus, and the high pressure deep hole grouting aperture apparatus includes first sleeve, described
First sleeve is arranged in the rock stratum around tunnel, for providing positioning and support；
Grouting with small pipe system, the grouting with small pipe system is located at the high pressure deep hole grouting system memory, described small
Conduit grouting system is connected to the inner wall in the tunnel；
The high pressure deep hole grouting system with grouting with small pipe system is parallel on the outside of tunnel constructs simultaneously.
A kind of water conductive fault comprehensive treatment parallel construction system as described above, it is preferable that high pressure deep hole grouting hole dress
It sets further include:
Second casing, the outer diameter of second casing are less than the internal diameter of the first sleeve；Second casing is set with one heart
It sets in the first sleeve, injected hole is equipped in second casing；
Short tube, the short tube are connected to the left side of second casing, and the short tube is equipped with pressure gauge；
Plug, the plug are connected on the left of the short tube, are equipped with spherical cavity in the plug, in the spherical cavity
Equipped with the second gate valve.
A kind of water conductive fault comprehensive treatment parallel construction system as described above, it is preferable that the length of second casing is big
In the length of the first sleeve, the first sleeve is concordant with the left end of second casing to be arranged；The first sleeve and
The screed of same thickness is equipped between second casing, between second casing and the injected hole；Described first
Casing and second casing are circumferentially distributed multiple through-holes, flow out out of casing for slurries, form the entirety of sealing.
A kind of water conductive fault comprehensive treatment parallel construction system as described above, it is preferable that the first sleeve left end connection
There is first flange, second casing left end is connected with second flange, and the right end of the short tube is connected with third flange；Described
One flange, the second flange and third flange abutting link together；The second flange is located at the first flange
Between the third flange；
The short tube outer wall connection is equipped with pressure-measuring pipe, and the first gate valve is equipped in the pressure-measuring pipe, and the pressure-measuring pipe upper end connects
It is connected to pressure gauge；First gate valve is for being connected to the pressure gauge and the short tube；
Preferably, the internal diameter of the short tube is identical as the internal diameter of second casing.
A kind of water conductive fault comprehensive treatment parallel construction system as described above, it is preferable that the injected hole has three groups, respectively
For first group of injected hole, second group of injected hole and third group injected hole；Injected hole described in each group is along the circumferential direction of construction tunnel
Be uniformly distributed, first group of injected hole is identical as the third group injected hole distribution mode, and with second group of the distribution
Mode is different；
Preferably, first group of injected hole and third group injected hole and center line in roadway angle are 11~25 °, hole depth
For 43~56m；
More preferably, second group of injected hole and center line in roadway angle are 15~22 °, and hole depth is 57~62m.
A kind of water conductive fault comprehensive treatment parallel construction system as described above, it is preferable that the grouting with small pipe system packet
Grouting with small pipe aperture apparatus is included, the grouting with small pipe aperture apparatus includes:
S group ductule, the s group ductule are arranged in the circumferential direction in tunnel, and one end of the s group ductule is from tunnel
Inner wall radiates extend to the other end around；
Q group ductule, the q group ductule and the s group ductule are arranged at the circumferential direction interval in tunnel, the q
The length of group ductule is greater than the length of the s group ductule；
Aqueduct, the aqueduct are located at the lower part of the left side in tunnel, the right side of the opening direction of the aqueduct towards tunnel
Side.
A kind of water conductive fault comprehensive treatment parallel construction system as described above, it is preferable that the s group ductule includes s1 group
Ductule, s2 group ductule, s3 group ductule, s4 group ductule, s5 group ductule, s6 group ductule, s7 group ductule, s8
Group ductule and s9 group ductule；One end of the s1 group ductule is connected at the left side in the tunnel, and the s2 group is small to be led
One end of pipe is connected to the crown junction in the tunnel Zuo Bangyu in the tunnel；One end of the s5 group ductule is connected to described
The crown junction of tunnel right side and tunnel；It is small that the s3 group ductule and the s4 group ductule are evenly distributed on the s2 group
Between conduit and the s5 group ductule；One end of the s6 group ductule is connected at the right side in the tunnel；The s7 group
Ductule to s9 group ductule is uniformly arranged on the tunnel bottom；
The q group ductule includes q1 group ductule, q2 group ductule, q3 group ductule, q4 group ductule, q5 group is small leads
Pipe, q6 group ductule, q7 group ductule, q8 group ductule and q9 group ductule；One end of the q1 group ductule is connected to institute
State the left side in tunnel and the bottom junction in tunnel；One end of the q7 group ductule is connected to the lane You Banghe in the tunnel
The bottom junction in road；The q8 group ductule and q9 group ductule are arranged perpendicular to the bottom in the tunnel；The q4 group is small
Conduit is connected to the highest point of the arch in the tunnel；The q2 group ductule is located at the s1 group ductule and s2 group ductule
Between；The q3 group ductule is between the s2 group ductule and s3 group ductule；The q5 group ductule is located at described
Between s4 group ductule and s5 group ductule；The q6 group ductule is between the s5 group ductule and s6 group ductule；
The aqueduct is connected on the U-shaped canopy leg, is connected with one section of exposed pipe on the right side of the aqueduct, described exposed
Pipe is identical as the internal diameter of the aqueduct, is connected with ring flange on the right side of the exposed pipe；
The s group ductule and q group ductule are extended towards tunnelling direction in country rock with 60~90 ° of inclination angles
It is interior；
The s group ductule and q group ductule are the steel floral tube of one end sealing, and the other end of the steel floral tube is equipped with spiral shell
Line, the sealed end of the steel floral tube is in coniform, for creeping into rock mass；The surrounding of the steel floral tube offers through-hole, for going out
Slurry；
It is also connected with water guide gate valve on the right side of the aqueduct, for controlling the opening and closing of water flow；
Preferably, the liftoff spacing of the aqueduct is not less than 300mm.
A kind of construction method of water conductive fault comprehensive treatment parallel construction system, the construction method include the following steps:
Step 1, high pressure deep hole grouting:
Step 11, drill construction technique program is determined:
After drilling tool aperture drilling and tripping in first sleeve → note dual slurry sealing → pressure-bearing pass the test → drilling tool super hole cutter
Into and the second casing of tripping in → note dual slurry sealing → pressure-bearing pass the test after → drilling tool super hole cutter proceeds to projected depth → observation
Water, hydraulic pressure and the water temperature in the whole hole of water outlet drilling；
Step 12, it tripping in first sleeve and the second casing and is fixed:
It is first crept into forward using drill bit A, then tripping in first sleeve, then infuses rapid hardening expansion hole sealing agent and carry out sealing；
It is first crept into forward using drill bit B, then the second casing of tripping in, note dual slurry carries out sealing；
Step 13, sealing inspection:
After first sleeve and the second casing sealing in step 12, using high pressure slurry pump respectively to first sleeve and second
Casing carries out sealing quality examination, then is crept into drill bit C；
Step 2, grouting with small pipe:
Step 21, ductule is chosen:
Ductule synchronous construction when roadway construction deep hole grouting drills, ductule are not less than 1.5m, and material is 1 cun of Φ
Steel floral tube, steel pipe exposed junction is threaded, surrounding should open up uniform through-hole；
Step 22, ductule is installed:
Two groups of ductules of s group ductule and q group ductule are constructed in channel spacing, every group of spacing 4m, can be according to live real
Border situation arrangement group number, general arrangement group number should cover entire construction area；A, two groups of b each 9 holes, with 60~90 ° of inclination angle courts
Driving front is squeezed into country rock；It squeezes into after country rock, slip casting can be carried out to ductule；
Step 23, aqueduct is installed:
Aqueduct is securely taken root on U-shaped canopy leg, so that the exposed 200mm of aqueduct, revealed section need welding flange, from
Ground spacing is not less than 300mm, to install control Water gate valve；Installing for aqueduct is not limited to design position, according to practical water outlet
It installs position；
Step 3, high pressure deep hole grouting and grouting with small pipe parallel construction:
While high pressure deep hole grouting, grouting with small pipe is constructed while being carried out.
A kind of construction method of water conductive fault comprehensive treatment parallel construction system as described above, it is preferable that the step 12
Described in drill bit A use Φ 168mm drill bit, the distance crept into forward be 6m；
The drill bit B uses the drill bit of Φ 127mm, and the distance crept into forward is 12m；
Cement slurry ratio of mud 1:1 in double slurries, cement slurry and waterglass volume ratio 1:0.6.
A kind of construction method of water conductive fault comprehensive treatment parallel construction system as described above, it is preferable that the step 11
In, cement slurry and waterglass volume ratio are 1:1~1:0.6 in the dual slurry；
In the step 12, the slip casting strengthening material of sealing is P.O42.5 portland cement, water and 35~40 Baumes
The waterglass of degree；
In the step 12, final grouting pressure 9MPa；
In the step 22, in grouting with small pipe, grouting pressure is not less than 6MPa；
There are two aqueducts in the step 23, and distance is 800mm between two pipes.
Compared with the immediate prior art, technical solution provided by the utility model has following excellent effect:
The method that the utility model uses high pressure deep hole grouting and grouting with small pipe parallel construction, so that being infused in high pressure deep hole
Grouting with small pipe is synchronous while slurry carries out；The method that high pressure deep hole grouting uses three-wheel slip casting simultaneously, ductule is using grouping
The construction method at interval, so that water conductive fault is effectively administered.The utility model makes water conductive fault administer the tomography duration
It shortens, project amount is less, expense is low, accuracy rate is high.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
Wherein:
Fig. 1 is the high-pressure slip-casting hole aperture layout drawing of the utility model embodiment；
Fig. 2 is the high-pressure slip-casting hole floor map of the utility model embodiment；
Fig. 3 is the high-pressure slip-casting hole diagrammatic cross-section of the utility model embodiment；
Fig. 4 is the first and third wheel slip casting section effect diagram of the utility model embodiment；
Fig. 5 is the second wheel slip casting section effect diagram of the utility model embodiment；
Fig. 6 is the section deep hole grouting cloth hole overall effect schematic diagram of the utility model embodiment；
Fig. 7 is that the ductule s group of the utility model embodiment arranges sectional schematic diagram；
Fig. 8 is that the conduit q group of the utility model embodiment arranges sectional schematic diagram；
Fig. 9 is the ductule plan view of the utility model embodiment；
Figure 10 is the ductule section arrangement schematic diagram of the utility model embodiment；
Figure 11 is the ductule structural schematic diagram of the utility model embodiment.
In figure: 11, first sleeve；12, the second casing；13, injected hole；14, first flange；15, second flange；16,
Three flanges；17, pressure gauge；18, the first gate valve；19, short tube；110, the second gate valve；111, the 4th flange；112, plug；21,
One wheel Grouting Pipe；22, the second wheel Grouting Pipe；23, third round Grouting Pipe；31, tunnel；41, left side；42, right side；43, third lock
Valve；44, reinforcing bar；51 screw threads；52, steel floral tube；53, tip；54, slurry outlet；S1, first group of conduit；S2, second group of conduit；
S3, third group conduit；S4, the 4th group of conduit；Q1, the 5th group of conduit；Q2, the 6th group of conduit；Q3, the 7th group of conduit；Q4, the 8th
Group conduit.
Specific embodiment
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that not conflicting
In the case where, the features in the embodiments and the embodiments of the present application can be combined with each other.
In the description of the present invention, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom" is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of description the utility model rather than requires the utility model that must be constructed and operated in a specific orientation, therefore
It should not be understood as limiting the present invention.Term used in the utility model " connected ", " connection " shall be understood in a broad sense,
For example, it may be being fixedly connected, may be a detachable connection；It can be directly connected, it can also be indirect by intermediate member
It is connected, for the ordinary skill in the art, can understands the concrete meaning of above-mentioned term as the case may be.
Specific embodiment according to the present utility model, as shown in Figure 1, being the 13 aperture cloth of high-pressure slip-casting hole of the utility model
Set figure, first sleeve 11 internal diameter 146mm, length 5.5m, 12 internal diameter 108mm of first sleeve.Length 11m, center are injected hole
13；The outflow of the water in pipeline can be can control on pressure gauge 17 with the pressure in display pipes, the second gate valve 110；Plug 112 is left
End is connected with the 4th flange 111, is convenient for other external pipelines.It is the high-pressure slip-casting end face of the utility model as shown in Fig. 2 to 6
Schematic diagram, 13 mouthfuls of high-pressure slip-casting hole arrangement are divided into three-wheel, respectively, first round Grouting Pipe 21, the second wheel Grouting Pipe 22, third
Grouting Pipe 23 is taken turns, first round Grouting Pipe 21 is as the arrangement of third round Grouting Pipe 23, the arrangement of the second wheel Grouting Pipe 22
Mode is different from first round Grouting Pipe 21 and third round Grouting Pipe 23.It is arranged in this way so that intensity of the tunnel 31 in tunneling process
It is guaranteed.Water conductive fault bring is prevented to endanger.As described in Fig. 7-11, show for the grouting with small pipe end face of the utility model
It is intended to, grouting with small pipe is divided into s and two big groups of q in the utility model, and each big group is divided into 9 groups, i.e. first group of conduit s1 again；
Second group of conduit s2；Third group conduit s3；4th group of conduit s4；5th group of conduit q1；6th group of conduit q2；7th group of conduit
q3；8th group of conduit q4；9th group of conduit q5, s and q two organizes greatly spaced apart arrangement, so that its area coverage becomes more
Extensively, bring effect is more obvious.Tunnel bottom is equipped with reinforcing bar 44 simultaneously, and for providing support, ductule front end is equipped with tip
53, convenient for being more easily inserted into rock mass, ductule is surrounded by slurry outlet 54.
Specific embodiment according to the present utility model, a kind of water conductive fault comprehensive treatment parallel construction system, parallel construction
System includes that high pressure deep hole grouting system, high pressure deep hole grouting system is located in the rock mass of 31 outside surrounding of tunnel.High pressure deep hole
Grouting system includes 13 device of high pressure deep hole grouting hole, and 13 device of high pressure deep hole grouting hole includes first sleeve 11, first sleeve
11 are arranged in the rock stratum around tunnel 31.For providing positioning and support.
Grouting with small pipe system, grouting with small pipe system are located at high pressure deep hole grouting system memory, grouting with small pipe system
It is connected to the inner wall in tunnel 31.
Specific embodiment according to the present utility model, 13 device of high pressure deep hole grouting hole further includes first sleeve 12, and first
The outer diameter of casing 12 is less than the internal diameter of first sleeve 11.First sleeve 12 is arranged concentrically in first sleeve 11, first sleeve 12
It is interior to be equipped with injected hole 13.Short tube 19, short tube 19 are connected to the left side of first sleeve 12, and short tube 19 is equipped with pressure gauge 17.Plug
112, plug 112 is connected to 19 left side of short tube, and spherical cavity is equipped in plug 112, is equipped with the second gate valve 110 in spherical cavity.
Specific embodiment according to the present utility model, the length of first sleeve 12 are greater than the length of first sleeve 11, and first
Casing 11 is concordant with the left end of first sleeve 12 to be arranged.Between first sleeve 11 and first sleeve 12, first sleeve 12 and slip casting
The screed of same thickness is equipped between hole 13.First sleeve 11 and first sleeve 12 are circumferentially distributed multiple through-holes, use
It is flowed out out of casing in slurries, forms the entirety of sealing.
Specific embodiment according to the present utility model, 11 left end of first sleeve are connected with first flange 14, first sleeve 12
Left end is connected with second flange 15, and the right end of short tube 19 is connected with third flange 16.First flange 14, second flange 15 and third
The abutting of flange 16 links together.Second flange 15 is between first flange 14 and third flange 16.The connection of 19 outer wall of short tube
Equipped with pressure-measuring pipe, it is equipped with the first gate valve 18 in pressure-measuring pipe, pressure-measuring pipe upper end is connected with pressure gauge 17.First gate valve 18 is for being connected to
Pressure gauge 17 and short tube 19.
Preferably, the internal diameter of short tube 19 is identical as the internal diameter of first sleeve 12.
Specific embodiment according to the present utility model, injected hole 13 have three groups, respectively first group of injected hole, second group of note
Starch hole and third group injected hole.Surrounding of each group of injected hole 13 along construction tunnel 31 is uniformly distributed, first group of injected hole with
Third group injected hole distribution mode is identical, and different from the distribution mode of second group of injected hole.
Preferably, first group of injected hole and third group injected hole and 31 centerlines of tunnel be 11~25 ° (such as
11 °, 12 °, 13 °, 14 °, 15 °, 18 °, 20 °, 22 °, 25 °), hole depth be 43~56m (such as 43m, 45m, 46m, 48m, 49m,
52m、53m、55m、56m)。
More preferably, second group of injected hole 13 and 31 centerlines of tunnel be 15~22 ° (such as 15 °, 16 °, 17 °,
18 °, 19 °, 20 °, 21 °, 22 °), hole depth is 57~62m (such as 57m, 58m, 59m, 60m, 61m, 62m).
Specific embodiment according to the present utility model, grouting with small pipe system include grouting with small pipe aperture apparatus, ductule
Slip casting aperture apparatus includes,
S group ductule, s group ductule are arranged in the surrounding in tunnel 31, one end of s group ductule from 31 inner wall of tunnel to
It extends around to the other end.
Q group ductule, q group ductule and s group ductule interval are arranged, and the length of q group ductule is greater than s group ductule
Length.
Aqueduct, aqueduct are located at the lower part of the left side 41 in tunnel 31, the right side of the opening direction of aqueduct towards tunnel 31
42。
Specific embodiment according to the present utility model, s group ductule include that s1 group ductule, s2 group ductule, s3 group are small
Conduit, s4 group ductule, s5 group ductule, s6 group ductule, s7 group ductule, s8 group ductule and s9 group ductule.S1 group
One end of ductule is connected at the left side 41 in tunnel 31, and one end of s2 group ductule is connected to the left lane Bang41Yu in tunnel 31
The crown junction in road 31.One end of s5 group ductule is connected to the crown junction of tunnel 31 right side 42 and tunnel 31.S3 group
Ductule and s4 group ductule are evenly distributed between s2 group ductule and s5 group ductule.One end of s6 group ductule is connected to
At the right side 42 in tunnel 31.S7 group ductule to s9 group ductule is uniformly arranged on 31 bottom of tunnel.
Q group ductule include q1 group ductule, q2 group ductule, q3 group ductule, q4 group ductule, q5 group ductule,
Q6 group ductule, q7 group ductule, q8 group ductule and q9 group ductule.One end of q1 group ductule is connected to tunnel 31
The bottom junction of left side 41 and tunnel 31.One end of q7 group ductule is connected to the right side 42 in tunnel 31 and the bottom in tunnel 31
Junction.Q8 group ductule and q9 group ductule are arranged perpendicular to the bottom in tunnel 31.Q4 group ductule is connected to tunnel 31
The highest point of arch.Q2 group ductule is located between s1 group ductule and s2 group ductule.Q3 group ductule is located at that s2 group is small to be led
Between pipe and s3 group ductule.Q5 group ductule is located between s4 group ductule and s5 group ductule.Q6 group ductule is located at s5
Between group ductule and s6 group ductule.
Aqueduct is connected on U-shaped canopy leg, is connected with one section of exposed pipe, the internal diameter of exposed pipe and aqueduct on the right side of aqueduct
It is identical, ring flange is connected on the right side of exposed pipe.
S group ductule and q group ductule are extended towards 31 tunneling direction of tunnel in country rock with 60~90 ° of inclination angles.
S group ductule and q group ductule are the steel floral tube 52 of one end sealing, and the other end of steel floral tube 52 is equipped with screw thread
51, the sealed end of steel floral tube 52 is in coniform, for creeping into rock mass.The surrounding of steel floral tube 52 offers through-hole, is used for pulp.
It is also connected with water guide gate valve on the right side of aqueduct, for controlling the opening and closing of water flow.
Preferably, the liftoff spacing of aqueduct is not less than 300mm.
A kind of construction method of water conductive fault comprehensive treatment parallel construction system, construction method include the following steps:
Step 1, high pressure deep hole grouting:
Step 11, drill construction technique program is determined:
After drilling tool aperture drilling, tripping in first sleeve 11 → note dual slurry sealing → pressure-bearing pass the test → drilling tool super hole cutter
After into, tripping in first sleeve 12 → note dual slurry sealing → pressure-bearing pass the test → drilling tool super hole cutter proceeds to projected depth → observation
Water, hydraulic pressure and the water temperature in the whole hole of water outlet drilling.
Step 12, it tripping in first sleeve 11 and first sleeve 12 and is fixed:
6m, tripping in first sleeve 11 are crept into using Φ 168mm drill bit, note rapid hardening expansion hole sealing agent carries out sealing, cement slurry
Ratio of mud 1:1, cement slurry and waterglass volume ratio 1:0.6.
12m, tripping in first sleeve 12 are crept into using Φ 127mm drill bit, note dual slurry carries out sealing, the cement slurry ratio of mud 1:
1, cement slurry and waterglass volume ratio 1:0.6.
Step 13, sealing inspection:
By the first sleeve 11 in step 12 and after 12 sealing of first sleeve 8 hours, first sleeve is done with high pressure slurry pump
11 and second set of pressure-bearing sealing quality examination, into first sleeve 11, water filling, aperture pressure are stablized 30 minutes up to 3Mpa, with aperture
And the not permeable leak in periphery is qualification, otherwise again slip casting sealing until qualified.Into first sleeve 12, water filling, aperture pressure reach
5Mpa stablizes 30 minutes, is qualification with the not permeable leak in aperture and periphery, otherwise again slip casting sealing until qualified.First sleeve 12
After sealing passed examination, the voltage-controlled Water gate valve of 108mm high is installed with the drill bit C of Φ 75mm and is drilled into design hole depth.
Step 2, grouting with small pipe:
Step 21, ductule is chosen:
Ductule synchronous construction when deep hole grouting drilling is constructed in tunnel 31, ductule are not less than 1.5m, and material is 1 cun of Φ
Steel floral tube 52, steel pipe exposed junction is threaded 51, surrounding should open up uniform through-hole.
Step 22, ductule is installed:
Two groups of ductules of s group ductule and q group ductule are staggeredly constructed in tunnel 31, and every group of spacing 4m can be according to scene
Actual conditions arrangement group number, general arrangement group number should cover entire construction area.A, two groups of b each 9 holes, with 60~90 ° of inclination angles
It is squeezed into country rock towards driving front.It squeezes into after country rock, slip casting can be carried out to ductule.
Step 23, aqueduct is installed:
Aqueduct is securely taken root on U-shaped canopy leg, so that the exposed 200mm of aqueduct, revealed section need welding flange, from
Ground spacing is not less than 300mm, to install control Water gate valve.Installing for aqueduct is not limited to design position, according to practical water outlet
It installs position.
Step 3, high pressure deep hole grouting and grouting with small pipe parallel construction:
While high pressure deep hole grouting, grouting with small pipe is constructed while being carried out.
Specific embodiment according to the present utility model, in step 11, cement slurry and waterglass volume ratio are 1:1 in dual slurry
~1:0.6.
In step 12, the slip casting strengthening material of sealing is P.O42.5 portland cement, water and 35~40 Baume degrees
Waterglass.
In step 12, final grouting pressure 9MPa.
Specific embodiment according to the present utility model, in step 22, in grouting with small pipe, grouting pressure is not less than
6MPa。
There are two aqueducts in step 23, and distance is 800mm between two pipes.
Specific embodiment according to the present utility model, the utility model is according to the geology and hydrogeological parameter of Tang Jiahui mine
The checking computations for the treatment of range are carried out, the checking computations for the treatment of range safe impermeable layer thickness calculation formula and 31 bottom plate of digging laneway as follows
Geology and hydrogeological parameter and tunnel 31 design parameter of the safe hydraulic pressure calculation formula of water barrier for Tang Jiahui mine, value meter
It calculates as follows:
Safe impermeable layer thickness calculation formula:
The safe impermeable layer thickness of t-, m in formula；
31 baseplate width of the tunnel L-, L=5.5m；
The average severe of γ-water-resisting floor, γ=0.025MN/m3；
KpThe average tensile strength of water-resisting floor, Kp=1.0MPa；
The head pressure that p- water-resisting floor is born, p=1.1MPa.
Calculate to obtain t=4.05m.
The safe hydraulic pressure of 31 water-resisting floor of digging laneway
In formula, the safe hydraulic pressure that p- water-resisting floor is able to bear, MPa；
T- impermeable layer thickness, t=12m；
31 width of the tunnel L-, L=5.5m；
The average severe of γ-water-resisting floor, 0.025MN/m3；
KpThe average tensile strength of water-resisting floor, Kp=1.0MPa
Calculate to obtain p=9.82MPa.
When delimiting 31 border 12m reinforcing scope of tunnel, the minimum impermeable layer thickness between 31 bottom plate of tunnel and ash difficult to understand is about
For 12m, it is much larger than safe impermeable layer thickness 4.05m；Working face Ordovician karst water pressure is up to 1.1MPa, is much smaller than safe hydraulic pressure
9.82MPa, therefore the treatment range delimited is reasonable.
Meanwhile the utility model additionally provides drilling construction parameter list, it is as shown in table 1 below:
1 drilling construction parameter list of table
In short, the method that the utility model uses high pressure deep hole grouting and grouting with small pipe parallel construction, so that in high pressure
Grouting with small pipe is synchronous while deep hole grouting carries out；The method that high pressure deep hole grouting uses three-wheel slip casting, ductule are adopted simultaneously
With staggered construction method is grouped, so that water conductive fault is effectively administered.So that water conductive fault administer the tomography duration shorten,
Project amount is less, expense is low, accuracy rate is high.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of water conductive fault comprehensive treatment parallel construction system, which is characterized in that the parallel construction system includes:
High pressure deep hole grouting system, the high pressure deep hole grouting system are located on the outside of tunnel in the rock mass of surrounding；The high pressure is deep
Hole grouting system includes high pressure deep hole grouting aperture apparatus, and the high pressure deep hole grouting aperture apparatus includes first sleeve, and described first
Casing is arranged in the rock stratum around tunnel, for providing positioning and support；
Grouting with small pipe system, the grouting with small pipe system are located at the high pressure deep hole grouting system memory, the ductule
Grouting system is connected to the inner wall in the tunnel；
The high pressure deep hole grouting system with grouting with small pipe system is parallel on the outside of tunnel constructs simultaneously.
2. a kind of water conductive fault comprehensive treatment parallel construction system as described in claim 1, which is characterized in that the high pressure is deep
Hole slip casting aperture apparatus further include:
Second casing, the outer diameter of second casing are less than the internal diameter of the first sleeve；Second casing is arranged concentrically on
In the first sleeve, injected hole is equipped in second casing；
Short tube, the short tube are connected to the left side of second casing, and the short tube is equipped with pressure gauge；
Plug, the plug are connected on the left of the short tube, and spherical cavity is equipped in the plug, is equipped in the spherical cavity
Second gate valve.
3. a kind of water conductive fault comprehensive treatment parallel construction system as claimed in claim 2, which is characterized in that described second set
The length of pipe is greater than the length of the first sleeve, and the first sleeve is concordant with the left end of second casing to be arranged；It is described
The mortar of same thickness is equipped between first sleeve and second casing, between second casing and the injected hole
Layer；The first sleeve and second casing are circumferentially distributed multiple through-holes, flow out out of casing for slurries, form envelope
Solid entirety.
4. a kind of water conductive fault comprehensive treatment parallel construction system as claimed in claim 2, which is characterized in that the first set
Pipe left end is connected with first flange, and second casing left end is connected with second flange, and the right end of the short tube is connected with third
Flange；The first flange, the second flange and third flange abutting link together；The second flange is located at institute
It states between first flange and the third flange；
The short tube outer wall connection is equipped with pressure-measuring pipe, is equipped with the first gate valve in the pressure-measuring pipe, the pressure-measuring pipe upper end is connected with
Pressure gauge；First gate valve is for being connected to the pressure gauge and the short tube.
5. a kind of water conductive fault comprehensive treatment parallel construction system as claimed in claim 2, which is characterized in that the injected hole
There are three groups, respectively first group of injected hole, second group of injected hole and third group injected hole；Injected hole described in each group is along construction
The circumferential direction in tunnel is uniformly distributed, and first group of injected hole is identical as the third group injected hole distribution mode, and with described
Two groups of distribution mode is different.
6. a kind of water conductive fault comprehensive treatment parallel construction system as described in claim 1, which is characterized in that the ductule
Grouting system includes grouting with small pipe aperture apparatus, and the grouting with small pipe aperture apparatus includes:
S group ductule, the s group ductule are arranged in the circumferential direction in tunnel, and one end of the s group ductule is from tunnel inner wall
Radiation extends to the other end around；
Q group ductule, the q group ductule and the s group ductule are arranged at the circumferential direction interval in tunnel, and the q group is small
The length of conduit is greater than the length of the s group ductule；
Aqueduct, the aqueduct are located at the lower part of the left side in tunnel, the right side of the opening direction of the aqueduct towards tunnel.
7. a kind of water conductive fault comprehensive treatment parallel construction system as claimed in claim 6, which is characterized in that the s group is small
Conduit includes s1 group ductule, s2 group ductule, s3 group ductule, s4 group ductule, s5 group ductule, s6 group ductule, s7
Group ductule, s8 group ductule and s9 group ductule；One end of the s1 group ductule is connected at the left side in the tunnel, institute
State s2 group ductule one end be connected to the tunnel the tunnel Zuo Bangyu crown junction；One end of the s5 group ductule
It is connected to the crown junction of the tunnel right side and tunnel；The s3 group ductule and the s4 group ductule are evenly distributed on
Between the s2 group ductule and the s5 group ductule；One end of the s6 group ductule is connected to the right side in the tunnel
Place；The s7 group ductule to s9 group ductule is uniformly arranged on the tunnel bottom.
8. a kind of water conductive fault comprehensive treatment parallel construction system as claimed in claim 7, which is characterized in that the q group is small
Conduit includes q1 group ductule, q2 group ductule, q3 group ductule, q4 group ductule, q5 group ductule, q6 group ductule, q7
Group ductule, q8 group ductule and q9 group ductule；One end of the q1 group ductule is connected to the lane Zuo Banghe in the tunnel
The bottom junction in road；One end of the q7 group ductule is connected to the right side in the tunnel and the bottom junction in tunnel；Institute
The bottom that q8 group ductule and q9 group ductule are stated perpendicular to the tunnel is arranged；The q4 group ductule is connected to the tunnel
Arch highest point；The q2 group ductule is between the s1 group ductule and s2 group ductule；The q3 group is small to be led
Pipe is between the s2 group ductule and s3 group ductule；The q5 group ductule is located at the s4 group ductule and s5 group is small
Between conduit；The q6 group ductule is between the s5 group ductule and s6 group ductule；
The aqueduct is connected on U-shaped canopy leg, is connected with one section of exposed pipe on the right side of the aqueduct, the exposed pipe with it is described
The internal diameter of aqueduct is identical, is connected with ring flange on the right side of the exposed pipe；
The s group ductule and q group ductule are extended towards tunnelling direction in country rock with 60~90 ° of inclination angles；
The s group ductule and q group ductule are the steel floral tube of one end sealing, and the other end of the steel floral tube is equipped with screw thread,
The sealed end of the steel floral tube is in coniform, for creeping into rock mass；The surrounding of the steel floral tube offers through-hole, is used for pulp；
It is also connected with water guide gate valve on the right side of the aqueduct, for controlling the opening and closing of water flow.
9. a kind of water conductive fault comprehensive treatment parallel construction system as claimed in claim 4, which is characterized in that the short tube
Internal diameter is identical as the internal diameter of second casing.
10. a kind of water conductive fault comprehensive treatment parallel construction system as claimed in claim 5, which is characterized in that described first
Group injected hole and third group injected hole and center line in roadway angle are 11~25 °, and hole depth is 43~56m；Second group of slip casting
Hole and center line in roadway angle are 15~22 °, and hole depth is 57~62m.
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| CN109139053A (en) * | 2018-09-30 | 2019-01-04 | 淮矿西部煤矿投资管理有限公司 | A kind of water conductive fault comprehensive treatment parallel construction system and construction method |
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