CN105673045B - Big counter-slope narrow-bore tunnel dual stage car direct connection lining construction method - Google Patents
Big counter-slope narrow-bore tunnel dual stage car direct connection lining construction method Download PDFInfo
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- CN105673045B CN105673045B CN201511011575.4A CN201511011575A CN105673045B CN 105673045 B CN105673045 B CN 105673045B CN 201511011575 A CN201511011575 A CN 201511011575A CN 105673045 B CN105673045 B CN 105673045B
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- 238000010276 construction Methods 0.000 title claims abstract description 80
- 230000009977 dual effect Effects 0.000 title claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 77
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 10
- 238000005086 pumping Methods 0.000 claims description 17
- 230000001965 increasing effect Effects 0.000 claims description 9
- 238000012857 repacking Methods 0.000 claims description 8
- 238000009412 basement excavation Methods 0.000 claims description 5
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 239000004746 geotextile Substances 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000007569 slipcasting Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
nullThe present invention relates to a kind of method for tunnel construction，It is specially a kind of big counter-slope narrow-bore tunnel dual stage car direct connection lining construction method，In order to reduce the big counter-slope narrow-bore tunnel dual stage car construction pump concrete proportion of goods damageds、Accelerate lining construction progress、Reduce lining construction difficulty，Two lining trolleys are reequiped，Increase in the front-end and back-end of two lining trolleys respectively and connect lining trolley lengthening panel，Two lining trolleys carry out seamless overlap joint by lengthening panel and leakproof self-adhering rubber band，During direct connection lining construction，Concreting uses oblique layer casting method，Pour window I from No. 2 lining trolley rear end outermost rows and pour window II propelling to No. 1 interior row in lining trolley front end，Simultaneously along two lining trolley panel longitudinal centre line left and right sides symmetry alternately constructions，The last demoulding，One lining cutting has circulated，Reduce the big counter-slope narrow-bore tunnel dual stage car construction pump concrete proportion of goods damageds，Accelerate lining construction progress，Reduce lining construction difficulty，Ensure that construction quality.
Description
Technical field
The present invention relates to a kind of method for tunnel construction, be specially a kind of big counter-slope narrow-bore tunnel dual stage car direct connection lining cutting and execute
Work method.
Background technology
Big cross section double-coil output or multilane highway lining-building platform car for tunnel construction length mostly are 12m, 10.5m at present
Or space is available for construction machinery vehicle and passes through under 9m, and general lining trolley.Light section single-track railway tunnel or service gallery lining
Platform building cart length mostly is insufficient space under 9m or 7.5m, and general chassis, and Construction traffic can not pass through.
Lining trolley is too short to be had the disadvantage that:
1, the tunnel-liner plate number of equal length will increase, and corresponding stopper template erects number of times, lining cutting overlap joint number of times, coagulation
Soil pours number of times, solidifying soil pours interval times also by increasing, and reduces construction speed；
2, the proportion of goods damageds of stopper template and concrete are added；
Lining trolley is long to be had the disadvantage that:
1, unfavorable lining trolley is assembled, walk, chassis panel positions, and voltage regulator tube difficulty strengthens；
2, it is unfavorable for concreting；
3, construction joint space strengthens, and concrete heating problem is more serious, causes the risk that lining concrete occurs
Strengthen；
If 4 in the middle of easement curve or circular curve tunnel, lining cutting is less useful for line type control, in the middle of vertical curve, no
It is beneficial to high process control.
Therefore, at present in long distance tunnel lining construction, for accelerating construction progress, two lining trolleys constructions of many uses
(for difference, by named for front end chassis No. 1 lining trolley, rear end chassis is No. 2 lining trolleys), concrete pump closelys follow chassis,
One in front and one in back at a distance of several adjoining rocks, without using an overlength lining trolley.Can under large cross-section tunnel lining trolley
Crossing car, the spacing of No. 1 lining trolley and No. 2 lining trolleys can strengthen as far as possible, and the spacing strengthening chassis has following excellent
Point:
1, to reduce construction interference；
2, minimizing is newly opened lining cutting both sides and is both needed to erect the number of times of stopper template, No. 2 lining trolley one end and the lining watered
Building concrete overlaps, and the other end erects stopper template, No. 1 lining trolley newly open lining cutting both sides need to erect stopper template (as Fig. 1,2
Shown in)；
3, lining cutting back cavity slip casting number of times is reduced, because rear a left a blank hole of plate lining cutting observation port can be filled out by previous plate lining cutting
Full, the cavity of No. 2 last plate lining cutting of lining trolley and No. 1 lining trolley the first plate lining joint position then needs slip casting
(as shown in Figure 3)；
But for narrow-bore tunnel because crossing car under lining trolley, concrete pump can only closely follow No. 2 lining trolleys, and
Need to connect the longest pump line during No. 1 lining trolley casting concrete, pumping difficulty strengthens, and concrete loss strengthens (such as Fig. 4 institute
Show), therefore, the spacing of two lining trolleys can not be too big, the spacing of the above-mentioned increasing chassis of dual stage car lining construction
Advantage can not be not fully exerted.Especially at big reverse-slope tunnel, concrete pumping difficulty strengthens further, and various construction difficult problems will
More prominent.
Therefore, research one reduces the dual stage car construction pump concrete proportion of goods damageds, quickening lining construction progress, reduces lining cutting
Difficulty of construction, and the construction method being suitable for big anti-broken narrow-bore tunnel dual stage car lining cutting seems the most necessary.
Summary of the invention
The present invention is to reduce the big counter-slope narrow-bore tunnel dual stage car construction pump concrete proportion of goods damageds, accelerating lining cutting and execute
Work progress, reduce lining construction difficulty and a kind of big counter-slope narrow-bore tunnel dual stage car direct connection lining construction method is provided.
The present invention is achieved by the following technical solutions: a kind of big counter-slope narrow-bore tunnel dual stage car direct connection lining construction
Method, comprises the following steps:
Step one, lining trolley are reequiped
(1) No. 2 lining trolley repacking
No. 2 lining trolley front end work platformses are removed by 1.1, make No. 2 lining trolley front end frameworks and No. 2 lining trolleys
Panel is in same perpendicular；
No. 2 lining trolley front end running motors are moved within lining trolley skeleton after travelling wheel by 1.2, make No. 2 lining cutting
Chassis front end is smooth；
No. 2 lining trolley lining front edge of board increasings are connect No. 2 lining trolleys by 1.3 lengthens panels, and circumferentially direction is every 1
Rice angle bar is reinforced, and No. 2 lining trolley lining cutting panel both sides are along watering that its longitudinal centre line symmetry offers that some rows be arranged in parallel
Building window I, on longitudinal centre line, three push pipe pumping holes I are laid at interval；
(2) No. 1 lining trolley repackings
No. 1 lining trolley rear end work platforms is removed by 2.1, makes No. 1 lining trolley rear end skeleton and No. 1 lining trolley
Panel is in same perpendicular；
No. 1 lining trolley rear end running motor and travelling wheel are moved forward within lining trolley skeleton by 2.2, make No. 1 lining cutting
Chassis rear end is smooth；
No. 1 lining trolley lining cutting panel rear end increasing is connect No. 1 lining trolley by 2.3 lengthens panel, and circumferentially direction is every 1
Rice angle bar is reinforced, and No. 1 lining trolley lengthens panel radius and is less than former lining cutting panel radius, and No. 1 lining trolley lengthening panel is long
Degree lengthens panel length less than No. 2 lining trolleys, if No. 1 lining trolley lining cutting panel both sides are offered along its longitudinal centre line symmetry
What dry row be arranged in parallel pours window II, and on longitudinal centre line, three push pipe pumping holes II are laid at interval, and often row pours window II and 2
On number lining trolley lining cutting panel, the window I that pours of relevant position is linked as a row；
(3) leakproof self-adhering rubber band processing
3.1 leakproof self-adhering rubber bands expand into strip rectangular structure, and tape thickness lengthens face equal to No. 1 lining trolley
Plate radius and the difference of former lining cutting panel radius, width lengthens the length of panel equal to No. 1 lining trolley, and length is more than lining cutting platform
Car panel hoop length, to reserve lap segment length, leakproof self-adhering rubber band lower surface has adhered layer, upper surface to offer in length and breadth
The joint-cutting being crisscross arranged, the joint-cutting degree of depth is to lengthen plate thickness 1cm more than No. 2 lining trolleys；
Leakproof self-adhering rubber band is affixed on No. 1 lining trolley by 3.2 to be lengthened on panel；
Step 2, direct connection lining construction
(1) preparation
After excavation and support has worked in tunnel, lay geotextiles and splash guard, again bar-mat reinforcement and draining be installed
Pipe, various built-in fittings or be fixed on lining trolley or be fixed on reinforced mesh, setting-out goes out tunnel center line the most again, if
For curved tunnel, then tunnel center line becomes broken line by lining trolley length setting-out, re-lays traveling rail afterwards, prepares lining trolley
Location；
(2) lining trolley location
First No. 1 lining trolley is moved ahead by 2.1, and the distance that moves ahead is with more than No. 1 lining trolley length 0.5m；
No. 2 lining trolley travelings are put in place by 2.2, rise lining cutting panel jack, make lining cutting panel absolute altitude put in place after centering,
Reinflated side form, fixes with screw mandrel after putting in place, completes No. 2 lining trolley location；
No. 1 lining trolley is fallen back by 2.3, makes No. 1 lining trolley lengthen panel and No. 2 lining trolleys lengthen panel lap,
Afterwards by No. 1 lining trolley centering, rise lining cutting panel jack, make the joint-cutting of leakproof self-adhering rubber band hold out against No. 2 lining cutting platforms
Car lengthens lower panels, and along seam indentation compressive state, is uncompressed part and lengthens panel, No. 1 lining with No. 2 lining trolleys
Platform building cart panel is concordant, launches No. 1 lining trolley side template, fixes with screw mandrel, install waterstop and stopper the most again after putting in place
Template, completes No. 1 lining trolley and the overlap joint of No. 2 lining trolleys；
(3) concreting
Concreting uses oblique layer casting method, and concrete casting method is: pour window from No. 2 lining trolley rear end outermost rows
Mouthful I pours window II propelling to No. 1 interior row in lining trolley front end, simultaneously along about two lining trolley panel longitudinal centre lines
The alternately construction of side symmetry, side every for longitudinal centre line be multiple rows of pours window when pouring, by interior row pour window to
Outermost row pours window and pours and pour track in the oblique grade line of the multilamellar extended forward, the slope of every layer of oblique grade line
Degree not can exceed that 10O, outermost row pours window rear end and interior row to pour the track that pours of window front end be straightway；
(4) demoulding
After concreting, after concrete initial set, start from the bottom up remove stopper mould, treat concrete final set and
After reaching dismountable bearing form intensity, unscrew screw mandrel, first pack up No. 1 lining trolley side form, fall No. 1 lining trolley panel
Jack, then No. 1 lining trolley moves ahead, then according to said sequence makes No. 2 lining trolley demouldings；
One lining cutting has circulated, and just can position successively, spread rail, carries out subsequent cycle construction.
Preferably, in above-mentioned steps (3), alternately pour along two lining trolley panel longitudinal centre line left and right sides symmetries
Time, when left side first row pour window pour maximum height reach 1.5m time, change pour window to right side first row, work as the right side
What side first row poured window pours when highly reaching 3m, then pours window from this side second row and start to pour, and so circulation is past
Multiple, complete all concrete pouring constructions pouring window.This pours mode in order to keep lining trolley not by the biggest bias
Power, it is ensured that extruding force balance suffered by chassis both sides.
Preferably, No. 2 lining trolleys lengthen a length of 20cm of panel, and No. 1 lining trolley lengthens a length of of panel
10cm, No. 1 lining trolley lengthens panel radius less than former lining cutting panel radius 5cm.
Preferably, the thickness of leakproof self-adhering rubber band is 5cm, and width is 10cm.
Preferably, when concreting to push pipe, pour according to the direction advanced from lining trolley rear end forward end, first
Carried out push pipe by three push pipe pumping holes I at No. 2 lining trolley tops one by one to pour, more one by one by the three of No. 1 lining trolley top
Individual push pipe pumping hole II carries out push pipe and pours in order to first fill up the observation cavity that a mould stays, finally in this lining cutting
At stopper mould, observation port position leaves cavity.
Preferably, after the demoulding, check leakproof self-adhering rubber band, because the joint-cutting degree of depth lengthens panel thickness more than No. 2 lining trolleys
Degree 1cm, if resilient after the demoulding, i.e. can be used for subsequent cycle construction after being cleaned out by mortar between joint-cutting；According to existing
Field is observed, if cannot restoring to the original state after the demoulding and spillage phenomenon occur, then needs to change rubber strip, during replacing, only need to tear old
Leakproof self-adhering rubber band, stick new leakproof self-adhering rubber band.
Compared with prior art, present invention, avoiding the shortcoming that chassis is too short and chassis is long, have the advantage that
1, two lining trolleys are reequiped, connect lining trolley in the increasing of the front-end and back-end of two lining trolleys respectively and add
Long panel, two lining trolleys carry out seamless overlap joint by lengthening panel and leakproof self-adhering rubber band, it is to avoid concrete is from panel
Seam crossing seepage, also ensures normally to overlap in the case of lining trolley location exists construction error, occurs without faulting of slab ends, it is ensured that
Lining construction quality；
2, two organic connecting together of lining trolley being carried out lining construction, assembly, location conveniently, accurately, easily operate, subtract
Having lacked construction interference, minimizing is newly opened lining cutting both sides and is both needed to erect the number of times of stopper template and reduces lining cutting back cavity slip casting time
Number, accelerates lining construction progress；
3, use oblique layer casting method during concreting, pour window I to No. 1 lining from No. 2 lining trolley rear end outermost rows
The interior row in platform building cart front end pours window II propelling, keeps certain gradient, to adapt to tunnel counter-slope, simultaneously along two lining cutting platforms
The alternately construction of car panel longitudinal centre line left and right sides symmetry, keeps lining trolley not by the biggest biasing force, and decreases and change pipe
Number of times, is particularly suited for big reverse-slope tunnel so that concrete pumping difficulty is substantially reduced；
4, pour length add 1 times because of every circulation lining cutting, therefore the tunnel-liner plate number of equal length will reduce, and keep off accordingly
Head mould grillage founds number of times, lining cutting overlaps number of times, concreting number of times, solidifying soil pour interval times and also will reduce, and accelerates
Construction speed；
5, reduce because of Mo Jiali number of stopper, therefore decrease the proportion of goods damageds of stopper template, pour several minimizing, reduce
Pump line wash number and concrete opening quotation number of times, therefore reduce the proportion of goods damageds of concrete；
6, compared to a long chassis, the favourable lining trolley of dual stage car direct connection is assembled, walking, beneficially chassis panel are fixed
Position, advantageously reduces voltage regulator tube number of times；
If 7 in the middle of easement curve or circular curve tunnel, compared to a long chassis, two chassis are in the plane
Location can be closer to curve, beneficially line type control, in the middle of vertical curve, and the highest process control；
In a word, lining construction method of the present invention is substantially reduced big counter-slope narrow-bore tunnel dual stage car construction pumped concrete
The soil proportion of goods damageds, accelerate lining construction progress, reduce lining construction difficulty, it is ensured that construction quality, have well popularization
Using value.
Accompanying drawing explanation
Fig. 1 is original two lining trolley constructing structure schematic diagrams in background technology；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is original lining trolley observation port and pump line schematic diagram in background technology；
Fig. 4 is concrete pumping schematic diagram in narrow-bore tunnel in background technology；
Fig. 5 is schematic diagram before No. 2 lining trolley work platforms repackings；
Fig. 6 is schematic diagram after No. 2 lining trolley work platforms repackings；
Fig. 7 is that travelling wheel reequips schematic diagram；
Fig. 8 is that No. 2 lining trolleys lengthen panel sectional view；
Fig. 9 is that No. 1 lining trolley lengthens panel sectional view；
Figure 10 is leakproof self-adhering rubber band schematic diagram；
Figure 11 is tunnel curved section central line lofting schematic diagram；
Figure 12 is Plane Curved line segment dual stage car direct connection plane graph；
Figure 13 is No. 1 lining trolley and face figure is indulged at No. 2 lining trolley direct connection tops；
Figure 14 is No. 1 lining trolley and No. 2 lining trolley direct connection overlap joint detail drawings；
Figure 15 is that lining trolley panel launches window number figure；
Figure 16 is that double lining chassis panel launches to pour window track figure；
Figure 17 is dual stage car direct connection lining construction schematic diagram；
In figure: 1-2 lining trolley；2-2 lining trolley front end work platforms；3-2 lining trolley panel；4-traveling
Motor；5-travelling wheel；6-2 lining trolley lengthens panel；7-angle bar；8-pours window I；9-push pipe pumping hole I；10-1 lining cutting
Chassis；11-1 lining trolley rear end work platforms；12-1 lining trolley panel；13-1 lining trolley lengthens panel；14-
Pour window II；15-push pipe pumping hole II；16-leakproof self-adhering rubber band；17-joint-cutting；The oblique grade line of 18-multilamellar；19-straight line
Section；20-excavation contour line；21-lining trolley panel；22-stopper template；23-has poured section concrete；The 24-section of pouring is seen
Examine cavity, hole site；The 25-newly section of pouring observation port is intended leaving a blank hole；26-pump line；27-concrete pump；28-tunnel center line；29-is bent
Line tunnel contour；30-1 lining trolley launches panel；31-2 lining trolley launches panel；32-2 lining trolley panel adds
Long district；34-lining construction direction；35-2 lining trolley rear end work platforms.
Detailed description of the invention
Big counter-slope narrow-bore tunnel dual stage car direct connection lining construction method, comprises the following steps:
Step one, lining trolley are reequiped
(1) No. 2 lining trolley 1 is reequiped
No. 2 lining trolley front end work platformses 2 are removed by 1.1, make No. 2 lining trolley front end frameworks and No. 2 lining trolleys
Panel 3 is in same perpendicular, and Fig. 5 is that front schematic diagram reequiped by lining trolley work platforms, Fig. 6 is No. 2 lining trolley front ends
Schematic diagram after work platforms repacking；
No. 2 lining trolley front end running motors 4 are moved within lining trolley skeleton after travelling wheel 5 by 1.2, make No. 2 linings
Platform building cart front end is smooth, is illustrated in figure 7 walking motor and travelling wheel repacking schematic diagram；
No. 2 lining trolley lining front edge of board increasings are connect No. 2 lining trolleys by 1.3 lengthens panels 6, and a length of 20cm, along ring
Reinforcing with angle bar 7 every 1 meter to direction, as shown in Figure 8, No. 2 lining trolley lining cutting panel both sides are symmetrical along its longitudinal centre line
That offers that 3 rows be arranged in parallel pours window I 8, and on longitudinal centre line, three push pipe pumping holes I 9, as shown in figure 15, lining are laid in interval
Platform building cart panel launches to pour window number figure；
(2) No. 1 lining trolleys 10 are reequiped
No. 1 lining trolley rear end work platforms 11 is removed by 2.1, makes No. 1 lining trolley rear end skeleton and No. 1 lining trolley
Panel 12 is in same perpendicular；
No. 1 lining trolley rear end running motor and travelling wheel are moved forward within lining trolley skeleton by 2.2, make No. 1 lining cutting
Chassis rear end is smooth；
No. 1 lining trolley lining cutting panel rear end increasing is connect No. 1 lining trolley by 2.3 lengthens panel 13, a length of 10cm, edge
Hoop direction reinforces with angle bar every 1 meter, and No. 1 lining trolley lengthens panel radius and is less than former lining cutting panel radius 5cm, such as Fig. 9
Shown in, No. 1 lining trolley lengthens panel length and lengthens panel length, No. 1 lining trolley lining cutting panel two less than No. 2 lining trolleys
Side pours window II 14 along what its longitudinal centre line symmetry offered that three rows be arranged in parallel, and on longitudinal centre line, three tops are laid at interval
Tube pump mouth II 15, often row pours the window I that pours of relevant position on window II and No. 2 lining trolley lining cutting panels and is linked as a row,
As shown in figure 15, lining trolley panel launches to pour window number figure；
(3) leakproof self-adhering rubber band 16 is processed
3.1 leakproof self-adhering rubber bands expand into strip rectangular structure, and as shown in Figure 10, tape thickness is equal to No. 1 lining
Platform building cart lengthens the difference of panel radius and former lining cutting panel radius, and for 5cm, width lengthens panel equal to No. 1 lining trolley
Length, for 10cm, length is more than lining trolley panel hoop length, to reserve lap segment length, leakproof self-adhering rubber leukorrhagia
Surface has adhered layer, upper surface to offer the joint-cutting 17 of crisscross setting, and the joint-cutting degree of depth is to lengthen panel more than No. 2 lining trolleys
Thickness 1cm；
Leakproof self-adhering rubber band is affixed on No. 1 lining trolley by 3.2 to be lengthened on panel；
Step 2, direct connection lining construction
(1) preparation
After excavation and support has worked in tunnel, lay geotextiles and splash guard, again bar-mat reinforcement and draining be installed
Pipe, various built-in fittings or be fixed on lining trolley or be fixed on reinforced mesh, setting-out goes out tunnel center line the most again, if
For curved tunnel, then tunnel center line becomes broken line (as shown in figure 11) by lining trolley length setting-out, re-lays traveling rail afterwards,
Prepare lining trolley location；
(2) lining trolley location
First No. 1 lining trolley is moved ahead by 2.1, and the distance that moves ahead is more than No. 1 lining trolley length 0.5m, to facilitate observer
Member observes No. 2 lining trolley positioning scenarios in No. 1 lining trolley；
No. 2 lining trolley travelings are put in place by 2.2, rise lining cutting panel jack, make lining cutting panel absolute altitude put in place after centering,
Reinflated side form, fixes with screw mandrel after putting in place, completes No. 2 lining trolley location, No. 2 lining trolley location and normal separate unit car
As location；
No. 1 lining trolley is fallen back by 2.3, makes No. 1 lining trolley lengthen panel and No. 2 lining trolleys lengthen panel lap,
Afterwards by No. 1 lining trolley centering, rise lining cutting panel jack, make the joint-cutting of leakproof self-adhering rubber band hold out against No. 2 lining cutting platforms
Car lengthens lower panels, and along seam indentation compressive state, is uncompressed part and lengthens panel, No. 1 lining with No. 2 lining trolleys
Platform building cart panel is concordant, it is ensured that concrete not seepage at slab joint, also ensures to exist the feelings of error in lining trolley location
Normally overlap under condition, occur without faulting of slab ends (see Figure 12, Figure 13, Figure 14)；Launch No. 1 lining trolley side template, after putting in place, use screw mandrel
Fixing, waterstop and stopper template are installed the most again, complete No. 1 lining trolley and the overlap joint of No. 2 lining trolleys, according to such as Figure 17
Shown in, carry out dual stage car direct connection lining construction.
(3) concreting
Concreting prepares: coordinate ready-mixed concrete by anti-crack concrete, and cracking resistance mix-design has been ripe the most
Technology, does not repeats them here, and installs concrete pump, connects pump line, first pumps into water, wet channels, then pumps into mortar, lubrication
Pipeline, the most just can formal casting concrete.
Concreting uses oblique layer casting method, and to increase area of dissipation, concrete casting method is: from No. 2 lining trolleys
Rear end outermost row pours window I and pours window II propelling to No. 1 interior row in lining trolley front end, to cover in time in propelling, with
Time along the alternately construction of two lining trolley panel longitudinal centre line left and right sides symmetries, side every for longitudinal centre line is multiple rows of to be poured
When window pours, interior row pour window and pour window to outermost row and pour and pour track in extending forward
The oblique grade line of multilamellar 18, the gradient of every layer of oblique grade line not can exceed that 10O, concrete excess flow is otherwise easily made when vibrating
Dynamic and aggregate separated occurs, outermost row pours window rear end and interior row to pour the track that pours of window front end be straightway 19；
In above-mentioned steps (3), along two lining trolley panel longitudinal centre line left and right sides symmetries alternately pour time, when left side, first row waters
That builds window pours maximum height when reaching 1.5m, changes and pours window to right side first row, and when right side, first row pours window
Pour when highly reaching 3m, then pour window from this side second row and start to pour, when right side second row pours pouring of window
When maximum height reaches 1.5m, change and pour window to left side the 3rd row, so move in circles, complete all windows that pour
Concrete pouring construction.When concreting to push pipe, pour according to the direction advanced from lining trolley rear end forward end, first
Carried out push pipe by three push pipe pumping holes I (serial number 50,70,90 in Figure 15) at No. 2 lining trolley tops one by one to pour, more one by one
Carried out push pipe by three push pipe pumping holes II (serial number 120,140,160 in Figure 15) at No. 1 lining trolley top to pour.Specifically water
The order that pours building window combines Figure 15 explanation, and order is as follows:
Pour the track sequentially formed and see Figure 16；
(4) demoulding
After concreting, after concrete initial set, starting to remove from the bottom up stopper mould, now concrete is the most not
Reach final set strength, now remove stopper mould and can facilitate dabbing, treat concrete final set and reach dismountable bearing form intensity
After, unscrew screw mandrel, first pack up No. 1 lining trolley side form, fall No. 1 lining trolley panel jack, then No. 1 lining trolley
Move ahead, then according to said sequence makes No. 2 lining trolley demouldings；
(5) leakproof self-adhering rubber band is changed
After the demoulding, after checking the demoulding, check leakproof self-adhering rubber band, because the joint-cutting degree of depth lengthens face more than No. 2 lining trolleys
Plate thickness 1cm, if resilient after the demoulding, i.e. can be used for subsequent cycle construction after being cleaned out by mortar between joint-cutting；
According to field observation, if cannot restoring to the original state after the demoulding and spillage phenomenon occurring, then need to change rubber strip, during replacing, only need to tear
Under old leakproof self-adhering rubber band, stick new leakproof self-adhering rubber band.
So far, a lining cutting has circulated, and just can position successively, spread rail, carries out subsequent cycle construction.
In order to prove the advance of construction method of the present invention, practicality further, it is real that applicant enumerates following engineering
Example illustrates:
Project profile:
It is Shanxi Province's " two indulge ten horizontal strokes " big network of rivers "backbone" projects that Shanxi Province's Xiao Langdi draws yellow engineering, is positioned at Shanxi Province's fortune
City, north, according to Luliang Mountains, borders on Linfen, and Zhongtiao Shan Mountain is stood erect in east and Jincheng City adjoins, west, south and Shaanxi Province's Weinan City, Henan
Save Sanmenxia City to face each other every the Yellow River.Engineering Overall tendency is the southeast-north-westward, is the Xiao Langdi water conservancy pivot on the Yellow River mainstream
Knob engineering is to the large-scale water diversion project of the Sushui River, Shanxi Province river valley water transfer, and diversion main line originates in river, domestic Ban Jian river, Yuanqu County
The Xiaolangdi Reservoir of mouthful right bank, terminates at the Lv Zhuan reservoir that Wenxi County is domestic, and the total trend of circuit is the southeast-north-westward,
Total length 59.6km.The Xiao Langdi undertaken the construction of by applicant draws yellow engineering construction III mark in Yuncheng Yuanqu County, this mark
Section tunnel overall length 11.908km, for new tunnel excavation, designs longitudinal gradient 1/3000, and wherein 2# tunnel pile No. is 8+113～11+210
Section design discharge 20.0m3/ s, 13+957～20+250 section design discharge 16.25 m3/ s, long 9.39km, Yuanqu branch line pile No. Y0+
000～2+518 section design discharge 3.94 m3/ s, long 2.518km, have tri-working tunnel of 3#, 4#, 5# in pipeline section.
This big counter-slope narrow-bore tunnel, for large cross-section tunnel, uses the construction of original lining methods to there is such as machine
Tool is because can not rapid construction, photoface exploision slotting being difficult to create the problems such as effective freeing surface by lining trolley.Use
Dual stage car direct connection lining construction method of the present invention, is substantially reduced big counter-slope narrow-bore tunnel dual stage car construction pumped concrete
The soil proportion of goods damageds, accelerate lining construction progress, reduce lining construction difficulty, it is ensured that construction quality, dual stage car direct connection lining cutting
Construct and draw yellow engineering tunnel at Xiao Langdi and succeed application, there is good application value.
Claims (6)
1. a big counter-slope narrow-bore tunnel dual stage car direct connection lining construction method, is characterized in that comprising the following steps:
Step one, lining trolley are reequiped
(1) No. 2 lining trolley (1) repacking
No. 2 lining trolley front ends work platforms (2) are removed by 1.1, make No. 2 lining trolley front end frameworks and No. 2 lining trolley faces
Plate (3) is in same perpendicular；
No. 2 lining trolley front ends running motor (4) and travelling wheel (5) are moved within lining trolley skeleton by 1.2 afterwards, make No. 2 linings
Platform building cart front end is smooth；
No. 2 lining trolley lining front edge of board increasings are connect No. 2 lining trolleys by 1.3 lengthens panel (6), and circumferentially direction is every 1 meter
Reinforcing with angle bar (7), No. 2 lining trolley lining cutting panel both sides are along watering that its longitudinal centre line symmetry offers that some rows be arranged in parallel
Building window I (8), on longitudinal centre line, three push pipe pumping holes I (9) are laid at interval；
(2) No. 1 lining trolley (10) repackings
No. 1 lining trolley rear end work platforms (11) is removed by 2.1, makes No. 1 lining trolley rear end skeleton and No. 1 lining trolley
Panel (12) is in same perpendicular；
No. 1 lining trolley rear end running motor and travelling wheel are moved forward within lining trolley skeleton by 2.2, make No. 1 lining trolley
Rear end is smooth；
No. 1 lining trolley lining cutting panel rear end increasing is connect No. 1 lining trolley by 2.3 lengthens panel (13), and circumferentially direction is every 1
Rice angle bar is reinforced, and No. 1 lining trolley lengthens panel radius and is less than former lining cutting panel radius, and No. 1 lining trolley lengthening panel is long
Degree lengthens panel length less than No. 2 lining trolleys, if No. 1 lining trolley lining cutting panel both sides are offered along its longitudinal centre line symmetry
What dry row be arranged in parallel pours window II (14), and on longitudinal centre line, three push pipe pumping holes II (15) are laid at interval, and often row pours
On window II and No. 2 lining trolley lining cutting panels, the window I that pours of relevant position is linked as a row；
(3) leakproof self-adhering rubber band (16) processing
3.1 leakproof self-adhering rubber bands expand into strip rectangular structure, and tape thickness lengthens panel equal to No. 1 lining trolley
Radius and the difference of former lining cutting panel radius, width lengthens the length of panel equal to No. 1 lining trolley, and length is more than No. 1 lining cutting
Chassis panel hoop length or No. 2 lining trolley panel hoop length, to reserve lap segment length, leakproof self-adhering rubber leukorrhagia
Surface has adhered layer, upper surface to offer the joint-cutting (17) of crisscross setting, and the joint-cutting degree of depth is to lengthen face more than No. 2 lining trolleys
Plate thickness 1cm；
Leakproof self-adhering rubber band is affixed on No. 1 lining trolley by 3.2 to be lengthened on panel；
Step 2, direct connection lining construction
(1) preparation
After excavation and support has worked in tunnel, lay geotextiles and splash guard, again bar-mat reinforcement and drain pipe be installed, respectively
Planting built-in fitting or be fixed on lining trolley or be fixed on reinforced mesh, setting-out goes out tunnel center line the most again, if bent
Threaded list road, then tunnel center line becomes broken line by lining trolley length setting-out, re-lays traveling rail afterwards, prepares lining trolley fixed
Position；
(2) lining trolley location
First No. 1 lining trolley is moved ahead by 2.1, and the distance that moves ahead is with more than No. 1 lining trolley length 0.5m；
No. 2 lining trolley travelings are put in place by 2.2, rise lining cutting panel jack, make lining cutting panel absolute altitude put in place, then open up after centering
Open side form, fix with screw mandrel after putting in place, complete No. 2 lining trolley location；
No. 1 lining trolley is fallen back by 2.3, makes No. 1 lining trolley lengthen panel and No. 2 lining trolleys lengthen panel lap, afterwards
By No. 1 lining trolley centering, rise lining cutting panel jack, make the joint-cutting of leakproof self-adhering rubber band hold out against No. 2 lining trolleys and add
Long lower panels, and along seam indentation compressive state, be uncompressed part and lengthen panel, No. 1 lining cutting platform with No. 2 lining trolleys
Car panel is concordant, launches No. 1 lining trolley side template, fixes with screw mandrel after putting in place, installs waterstop and stopper template the most again,
Complete No. 1 lining trolley and the overlap joint of No. 2 lining trolleys；
(3) concreting
Concreting uses oblique layer casting method, and concrete casting method is: pour window I from No. 2 lining trolley rear end outermost rows
Window II propelling is poured, simultaneously along two lining trolley panel longitudinal centre line left and right sides to No. 1 interior row in lining trolley front end
Symmetrical alternately construction, side every for longitudinal centre line be multiple rows of pours window when pouring, interior row pour window to
Outer row pours window and pours and pour track in the oblique grade line of the multilamellar extended forward (18), every layer of oblique grade line
The gradient not can exceed that 10O, outermost row pours window rear end and interior row to pour the track that pours of window front end be straightway (19)；
(4) demoulding
After concreting, after concrete initial set, start to remove from the bottom up stopper mould, treat concrete final set and reach
After dismountable bearing form intensity, unscrew screw mandrel, first pack up No. 1 lining trolley side form, fall No. 1 lining trolley panel very heavy
Top, then No. 1 lining trolley moves ahead, then according to said sequence makes No. 2 lining trolley demouldings；
One lining cutting has circulated, and just can position successively, spread rail, carries out subsequent cycle construction.
Big counter-slope narrow-bore tunnel the most according to claim 1 dual stage car direct connection lining construction method, is characterized in that above-mentioned
In step (3) concreting process, along two lining trolley panel longitudinal centre line left and right sides symmetries alternately pour time, work as a left side
What side first row poured window pours maximum height when reaching 1.5m, changes to right side first row and pours window, when right side first
What row poured window pours when highly reaching 3m, then pours window from this side second row and start to pour, and so moves in circles, completes
To all concrete pouring constructions pouring window.
Big counter-slope narrow-bore tunnel the most according to claim 1 and 2 dual stage car direct connection lining construction method, is characterized in that 2
Number lining trolley lengthens a length of 20cm of panel, and No. 1 lining trolley lengthens a length of 10cm of panel, No. 1 lining trolley
Lengthen panel radius less than former lining cutting panel radius 5cm.
Big counter-slope narrow-bore tunnel the most according to claim 3 dual stage car direct connection lining construction method, is characterized in that leakproof
The thickness of self-adhering rubber band is 5cm, and width is 10cm.
Big counter-slope narrow-bore tunnel the most according to claim 1 and 2 dual stage car direct connection lining construction method, is characterized in that
When concreting is to push pipe, pour according to the direction advanced from lining trolley rear end forward end, first one by one by No. 2 lining trolleys
Three push pipe pumping holes I at top carry out push pipe and pour, then are pushed up by three push pipe pumping holes II at No. 1 lining trolley top one by one
Pipe pours.
Big counter-slope narrow-bore tunnel the most according to claim 1 and 2 dual stage car direct connection lining construction method, is characterized in that taking off
After mould, check leakproof self-adhering rubber band, because the joint-cutting degree of depth lengthens plate thickness 1cm more than No. 2 lining trolleys, if energy after the demoulding
Restore to the original state, after being cleaned out by mortar between joint-cutting, i.e. can be used for subsequent cycle construction；According to field observation, if nothing after the demoulding
Method restores to the original state and spillage phenomenon occurs, then need to change rubber strip, during replacing, and the leakproof self-adhering rubber band that only need to tear old, patch
Upper new leakproof self-adhering rubber band.
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| CN107401410B (en) * | 2017-07-20 | 2019-03-19 | 青岛理工大学 | Two-parameter curve tunnel cross section optimization design method |
| CN107882578B (en) * | 2017-10-24 | 2019-04-19 | 中国电建集团华东勘测设计研究院有限公司 | A kind of reinforced concrete lined tunnel single stope dual stage vehicle lining cutting continuous placing technology |
| CN108019225A (en) * | 2017-12-01 | 2018-05-11 | 中铁局集团有限公司 | Hydraulic moving formula subway station side wall formwork jumbo |
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| JP2617663B2 (en) * | 1992-10-05 | 1997-06-04 | 三菱重工業株式会社 | Segment retightening device for shield tunnel |
| CN1215250C (en) * | 2002-07-31 | 2005-08-17 | 兰州理工大学 | Hydraulic tunnel bogie for installing facing |
| CN201460910U (en) * | 2009-07-27 | 2010-05-12 | 中铁二局股份有限公司 | Dedicated lining jumbo for open-excavated tunnels |
| CN102061926A (en) * | 2009-11-11 | 2011-05-18 | 中铁十八局集团有限公司 | TBM tunneling and secondary lining synchronous construction method at mucking of continuous belt conveyor and trolley |
| CN102296971B (en) * | 2011-08-08 | 2013-11-27 | 湖南五新重型装备有限公司 | Lining method for tunnel emergency turnout strips and tunnel-lining trolley |
| CN202325552U (en) * | 2011-11-28 | 2012-07-11 | 中铁十二局集团第一工程有限公司 | Lining trolley for widened area construction of tunnel |
| CN202991063U (en) * | 2012-12-27 | 2013-06-12 | 中铁二局股份有限公司 | Large-section tunnel hydraulic trolley |
| CN106117198B (en) * | 2016-07-01 | 2017-10-17 | 江苏正大清江制药有限公司 | The crystal formation and preparation method of a kind of vinpocetine and the salt of D tartaric acid formation |
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