CN105927249A - Construction method for pouring tunnel second lining self-compacting concrete - Google Patents
Construction method for pouring tunnel second lining self-compacting concrete Download PDFInfo
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- CN105927249A CN105927249A CN201610346501.4A CN201610346501A CN105927249A CN 105927249 A CN105927249 A CN 105927249A CN 201610346501 A CN201610346501 A CN 201610346501A CN 105927249 A CN105927249 A CN 105927249A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention provides a construction method for pouring tunnel second lining self-compacting concrete. Firstly, pouring is conducted from a waist window on the single side for storage, and then a top pouring mode is switched. The construction method comprises the steps that a ground pump pipe is arranged for storage, specifically, after formwork erection of a trolley is finished, the pump pipe is connected into the trolley, and the pump pipe is guided to an observation window on one side through a hose for storage; concrete at the bottom of formworks is poured, specifically, the concrete poured from the single side for storage flows from one side to the other side till the lower observation window is closed; and pipe switching is conducted, specifically, the hose is moved out from the side pouring window and connected with a corresponding top pouring hole till pouring is finished. By the adoption of the construction method, on one hand, applicability selection of the ground pump power in the pouring process of an all-round-formwork trolley of the self-compacting concrete is achieved; and on the other hand, reinforcing bar reveal and retention of the bottom concrete are effectively avoided, finally the construction quality of concrete structure formation is improved, and the construction efficiency is improved.
Description
Technical field
The invention belongs to underground engineering, the construction method of the cast-in-place two lining self-compacting concretes in a kind of tunnel.
Background technology
Development along with China's underground engineering, self-compacting concrete is widely used in tunnel (hole) liner structure with its good mobility, stability, education resistance and uniformity, particularly in water-conveyance tunnel, one section of tunnel structure uses built-in shuttering supporting, self-compacting concrete one-time-concreting molding, decreases the horizontal joint of structure.Self-compacting concrete elder generation ground is transported to underground, then is transported to pour the scope of operation from underground, is pumped to pour mouth by ground pump and puts in storage, and selects different modes of putting in storage to have a certain impact for the effect of concreting process and shaping structures.
In underground engineering, being poured the technology of liner structure by underground haulage self-compacting concrete, concrete warehousing mode mainly has three kinds: one is that first bottom trolley formwork, pouring hole pours, then shifts to top pouring hole and pour；The second is first to pour from trolley formwork both sides waist observation window symmetry, then shifts to top pouring hole and pours；The third, top arranges pouring hole, and concrete directly puts in storage from top, is changed without pouring mouth.Practice have shown that, the self-compacting concrete structure that one-shot forming is poured, three kinds of concrete warehousing modes in construction in various degree occur in that impact construction seriality and the problem of molding tunnel quality, first method, it is bigger that bottom squeeze formula pours required pump pressure, easy appearance is because pump pressure is not enough " suppressing pump ", and then causes pouring the formation of concrete structure cold seam of appearance interrupting causing, and to change the pipe time from bottom to up long halfway；Second mode principle of putting in storage with the third is identical, belong to symmetry pour, the concrete put in storage in both sides is unfavorable for the discharge of air when meeting bottom template, lower concrete is caused to be locally filled with leakiness, occur in that local retention and the problem of dew muscle, also causing the phenomenon that bottom bubble is more, additionally to change the pipe time long for second method, and the third method easily causes concrete disintegration under conditions of drop is big simultaneously.The coldest seam, it is detained, reveals muscle and the leakiness of concrete that concrete disintegration causes all have impact on presentation quality and the entity structure quality of concrete.
Summary of the invention
It is an object of the invention to provide a kind of construction method pouring tunnel double-lining self-compacting concrete, solve existing concrete warehousing mode to there is bottom squeeze formula to pour required pump pressure bigger, the technical problem of " suppressing pump " easily occurs because pump pressure is not enough, lower concrete is also wanted to be locally filled with leakiness, occurring in that local retention and the technical problem of dew muscle, concrete drop to be solved easily causes greatly the technical problem of concrete disintegration.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of construction method pouring tunnel double-lining self-compacting concrete, construction procedure is as follows:
Step one, arranges observation window and top pouring hole on trolley formwork；
Step 2, opens the door of whole observation windows；
Step 3, in the front of chassis direct of travel, tunnel one serve as a contrast interior resettlement pump；
Step 4, ground pump pump line puts in storage: after chassis formwork completes, and is accessed in chassis by ground pump by hard pump line, and causes the middle observation window of side by soft pump line and put in storage；
Step 5, after pump line installation, opens ground switch pump and pumps outside trolley formwork and pour self-compacting concrete；
Step 6, template lower concrete pours: the one side concrete poured that puts in storage flows to opposite side from side, until the door of lower observation window is closed；
Step 7, changes pipe: continue casting concrete, is removed by soft pump line therefrom observation window, and the top pouring hole closed on observation window in this is connected, and in closedown, the door of observation window continues to pour；
Step 8, when concrete liquid level is close to upper observation window, closes and closes observation window until having poured.
In described step one, both sides obliquely downward at trolley formwork arranges lower observation window, observation window in the both sides waist of trolley formwork is arranged, observation window and top pouring hole are set at the top of trolley formwork, all observation windows are equipped with can the door of folding, described top pouring hole at least provided with two, at least one be positioned at trolley formwork constructed tunnel two lining one end, at least one be positioned at trolley formwork do not construct tunnel two lining one end.
In described step 4, hard pump line is used to pick out from ground pump discharge, hard pump line lays along the bottom that tunnel one serves as a contrast and extends near trolley formwork, horizontally enter into inside chassis needle beam after 90 ° of elbow conversion elevations of two hard pump lines, and extend close to or the pouring hole position, top of corresponding trolley formwork, then 90 ° of elbow conversion directions are reconnected upward, the union joint of 90 ° of elbows connects the soft pump line of sufficient length, soft pump line is upwardly into above chassis needle beam and to curving, introduce the middle observation window of this side, then the hard short tube of spreading on soft pump line, and hard short tube is temporarily fixed on middle observation window.
In described step 6, put in storage and pour in the self-compacting concrete middle observation window one side in step 4, concrete slurry therefrom flows to opposite side in observation window side, observe template both sides concrete liquid level discrepancy in elevation situation, when both sides liquid level rises to the lower limb of lower observation window, close the door of the lower observation window of both sides；
In described step 7, further comprising the steps of:
Step a, continues casting concrete, until concrete liquid level is raised above the position of top edge about 10cm of lower observation window, the template both sides liquid level discrepancy in elevation less than stopping during 30cm pouring；
Step b, leaves soft pump line by dismounting on the hard short tube middle observation window from step 4, is connected firmly by top pouring hole close or corresponding with observation window in this for soft pump line, and closes the door of observation window in both sides.
In described step 8, further comprising the steps of:
Step c, self-compacting concrete continues to put in storage from top pouring hole to pour, and until concreting to when will flush with die head, being removed by the anti-floating jack stretching out upper observation window, closing the door closing observation window, until having poured；
Step d, closes this top pouring hole, removes soft pump line；
Step e, adjusts the length of hard pump line, in order to the middle observation window near the pouring hole of top that the next one marched to is close or corresponding, carries out the construction of next construction position in storehouse, until whole constructing tunnel is complete.
In described step one, upper observation window and top pouring hole are spaced setting in units of the single-chip template of trolley formwork.
In described step one, the absolute altitude of described lower observation window is the most equal, and in units of the single-chip template of trolley formwork, arrange at template both sides space crossings, the absolute altitude of described middle observation window is the most equal, and in units of the single-chip template of trolley formwork, arranging at template both sides space crossings, described lower observation window and middle observation window are arranged at the non-homonymy of same single-chip template.
Hard pump line in described step 4,90 ° of elbows and hard short tube are steel pipe, and described soft pump line is rubber tube, all uses buckle merogenesis to be connected between steel pipe, between rubber tube and between steel pipe with rubber tube.
The selection of the top pouring hole in described step 4 need to take into account flow distance and the length of construction position in storehouse of concrete, and the selection of described middle observation window need to close on this top pouring hole.
In described step 6, after self-compacting concrete is full of template bottom space, continue one side to pour, template both sides liquid level synchronizes to rise, the liquid level rate of climb pouring side of putting in storage can be slightly larger than the opposite side rate of climb, causing both sides liquid level certain discrepancy in elevation occur, therefrom the liquid level discrepancy in elevation of template both sides observed by observation window, and the mode processing the discrepancy in elevation has:
If described self-compacting concrete mobility is poor, vibrating spear drain when flowing to opposite side from side, can be used；
If the both sides liquid level discrepancy in elevation is bigger, only hard short tube need to be taken apart from the middle observation window of this side, and move to opposite side is fixed on observation window the most temporarily, then pour to both sides liquid level and flush.
Compared with prior art the invention have the characteristics that and beneficial effect:
The present invention solve existing three kinds of concrete warehousing modes in construction in various degree occur in that impact construction seriality and the problem of molding tunnel quality, first pour from waist side and the most directly change top and pour, pouring the concrete put in storage is by flowing to opposite side from side, smoothly the air bottom template can be squeezed away from opposite side, until trolley formwork underfill is closely knit, good exhaust effect, molding tunnel floor Concrete Filled is closely knit, it is to avoid occur revealing muscle, delay and the problem of a large amount of bubble.
The concrete that the present invention is put in storage is that the principle by Gravitative Loads and U-shaped linker is depressed into opposite side from template side, self-compacting concrete has high fluidity and performance is passed through in good gap, without vibrating, one side pours after putting in storage, can quickly flow to template opposite side and template two ends, it is not necessary to the pressure by ground pump is pressed into by force, and pump pressure requires relatively low the most over the ground, it is suitable for pouring work in the case of the ground each range pressure of pump, it is to avoid casting process occurs the phenomenon that pump pressure is not enough.The present invention solves self-compacting concrete in wholecircle formwork jumbo casting process, the problem that the suitability of the power of ground pump selects, on the other hand also effectively prevent dew muscle and the phenomenon of delay of the concrete of bottom, the final construction quality improving xoncrete structure molding, improve efficiency of construction.
Concrete drop of the present invention is little does not easily cause concrete disintegration, it is ensured that the presentation quality of concrete and entity structure quality.
Casting process of the present invention changes pipe during pouring hole replacing simple to operate, it is not necessary to dismounting, only direct flexible pipe need to be moved to top pouring hole from side and install, shorten the engineering time and reduce manpower and materials, substantially increasing effect.
Present invention tunnel (hole) lining cutting be applicable to the engineering such as subway or water conservancy uses self-compacting concrete to pour the construction operation of one-shot forming structure, it is particularly well-suited to tunnel (hole) clear height less than 10m, the tunnel that freely falling body maximum height is 5m (hole) of self-compacting concrete.
Accompanying drawing explanation
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the sectional structure chart that in embodiment, observation window is arranged.
Fig. 2 is the three-dimensional structure diagram that in embodiment, top pouring hole and observation window are arranged.
Fig. 3 is that formwork jumbo inner concrete pump line puts in storage the side block diagram of set-up mode.
Fig. 4 be Fig. 3 sectional structure schematic diagram.
Fig. 5 is to put in storage and pour the structural representation of lower concrete in one side.
Fig. 6 be one side put in storage pour to template observation window close structural representation.
Fig. 7 is concrete liquid level close to pump line during the door of lower observation window shifts to the structural representation of top pouring hole.
Fig. 8 is the structural representation from trolley formwork top casting concrete to waist.
Fig. 9 is concreting to the structural representation of die head.
Reference: observation window under 1-trolley formwork, 2-, 3-chassis needle beam, 4-top pouring hole, the hard pump line of 5-, the soft pump line of 6-, 7-90 ° of elbow, 8-tunnel one serve as a contrast, 9-has constructed, and tunnel two serves as a contrast, observation window, the upper observation window of 13-in the hard short tube of 10-self-compacting concrete, 11-, 12-.
Detailed description of the invention
Embodiment sees shown in Fig. 1-9, pours and provide a kind of construction method pouring tunnel double-lining self-compacting concrete as a example by tunnel two serves as a contrast self-compact concrete in construction in whole-circle needle beam formwork jumbo.Tunnel two lining is that tunnel one serves as a contrast after construction completes, and has certain thickness reinforced concrete lining layer structure what tunnel one served as a contrast construction on basal plane.Formwork need to be carried out on the basis of tunnel one serves as a contrast during tunnel two lining construction, employing whole-circle needle beam formwork jumbo formwork is the formwork way that current circular tunnel is commonly used, simultaneously take account of circular modular space concrete vibrating difficulty, use the self-compacting concrete of without vibration to pour.
Specific construction step is as follows:
Step one, trolley formwork 1 arranges observation window and top pouring hole: the both sides obliquely downward at trolley formwork 1 arranges lower observation window 2, observation window 12 in the both sides waist of trolley formwork 1 is arranged, arranges observation window 13 and top pouring hole 4 at the top of trolley formwork 1.
Shown in Figure 1, in terms of transverse section, it is respectively provided with observation window at both sides obliquely downward, waist and the top of trolley formwork 1, size is 450mm × 500mm, all configuring the door that can open and close, observation window is mainly used in observing concrete mobility status between trolley formwork and tunnel one serve as a contrast and putting in storage for concreting.
Shown in Figure 2, by 112m(lap of splice 20cm) trolley formwork 1 as a example by, be made up of 1 piece of wide template of 1.7m and 7 pieces of 1.5m width templates, template is respectively 1-8 block from left to right.Wherein, 1.7m wide template one end and the overlap joint 20cm of lined tunnel two lining structure, therefore, effective adjoining rock is 12m.
The absolute altitude of described lower observation window 2 is the most equal, and in units of the single-chip template of trolley formwork, arrange at template both sides space crossings, the absolute altitude of described middle observation window 12 is the most equal, and in units of the single-chip template of trolley formwork, arranging at template both sides space crossings, described lower observation window 2 and middle observation window 12 are arranged at the non-homonymy of same single-chip template.
In the present embodiment, respectively arranging 8 lower observation windows 2 and 8 middle observation windows 12 in trolley formwork both sides obliquely downward and waist, top arranges 2 observation windows 2.Calculating from 1.7m width template one end, the 1st, 3,5,7 pieces of template left side lumbar and right side obliquely downward are respectively provided with 1 observation window, and the 2nd, 4,6,8 pieces of template left lumbar and left side obliquely downward are respectively provided with 1 observation window.
Upper observation window 13 and top pouring hole 4 are spaced setting in units of the single-chip template of trolley formwork.Described top pouring hole 4 is at least provided with two, at least one be positioned at trolley formwork constructed tunnel two lining one end, at least one be positioned at trolley formwork do not construct tunnel two lining one end, template longer for lining cutting arranges one near centre position, lining cutting end and the centre position pouring hole the most poured for top in the method.In the present embodiment, the 3rd, 6 pieces of die head respectively arrange 1 upper observation window 13, and the 2nd, 4,7 pieces of die head respectively arrange 1 top pouring hole 4, bore dia 100mm.
Step 2, opens the door of whole observation windows；
Step 3, resettlement pump in the front of chassis direct of travel, tunnel one serve as a contrast 8；
Step 4, ground pump pump line puts in storage: see shown in Fig. 3-4, after chassis formwork completes, is accessed in chassis by ground pump by hard pump line, and causes the middle observation window of side by soft pump line and put in storage.Hard pump line 5 is used to pick out from ground pump discharge, hard pump line 5 serves as a contrast the bottom of 8 along tunnel one and lays and extend near trolley formwork 1, chassis needle beam 3 is horizontally entered into internal after 90 ° of elbows 7 of two hard pump lines change elevation, and extend close to or corresponding trolley formwork has been constructed top pouring hole 4 position of one end of tunnel two lining, then one 90 ° elbow 7 conversion directions are reconnected upward, the union joint of 90 ° of elbows 7 connects the soft pump line 6 of sufficient length, soft pump line is upwardly into above chassis needle beam 3 and to curving, introduce the middle observation window 12 of this side, then the hard short tube of spreading 11 on soft pump line 6, and hard short tube 11 is temporarily fixed on middle observation window 12.
In this example, 5,90 ° of elbows 7 of hard pump line and hard short tube 11 are steel pipe, and described soft pump line is rubber tube, all uses buckle merogenesis to be connected between steel pipe, between rubber tube and between steel pipe with rubber tube.The selection of top pouring hole 4 need to take into account flow distance and the length of construction position in storehouse of concrete, and the selection of described middle observation window 12 need to close on this top pouring hole 4.
Step 5, after pump line installation, opens ground switch pump and pumps outside trolley formwork and pour self-compacting concrete；
Step 6, template lower concrete pours: put in storage and pour in the self-compacting concrete middle observation window 12 one side in step 4, concrete slurry therefrom flows to opposite side in observation window 12 side, observe template both sides concrete liquid level discrepancy in elevation situation, when both sides liquid level rises to the lower limb of lower observation window 2, close the door of the lower observation window 2 of both sides.
After self-compacting concrete is full of template bottom space, continue one side to pour, template both sides liquid level synchronizes to rise, the liquid level rate of climb pouring side of putting in storage can be slightly larger than the opposite side rate of climb, cause both sides liquid level that certain discrepancy in elevation occurs, therefrom the liquid level discrepancy in elevation of template both sides observed by observation window 12, and the mode processing the discrepancy in elevation has:
If described self-compacting concrete mobility is poor, vibrating spear drain when flowing to opposite side from side, can be used；
If the both sides liquid level discrepancy in elevation is bigger, only hard short tube 11 need to be taken apart from the middle observation window 12 of this side, and move to opposite side is fixed on observation window 12 the most temporarily, then pour to both sides liquid level and flush.
Step 7, changes pipe: continue casting concrete, until concrete liquid level is raised above the position of top edge about 10cm of lower observation window 2, the template both sides liquid level discrepancy in elevation less than stopping during 30cm pouring；Dismounting on the hard short tube 11 middle observation window 12 from step 4 is left soft pump line 6, soft pump line is connected firmly with the close or corresponding top pouring hole 4 of observation window in this 12, and closes the door of observation window 12 in both sides.
Step 8, self-compacting concrete continues to put in storage from top pouring hole 4 to pour, and until concreting to when will flush with die head, being removed by the anti-floating jack stretching out upper observation window 13, closing the door closing observation window 13, until having poured；
Close this top pouring hole 4, remove soft pump line 6；
Adjust the length of hard pump line 5, in order to the middle observation window 12 near the pouring hole of top that the next one marched to is close or corresponding, carry out the construction of next construction position in storehouse, until whole constructing tunnel is complete.
It should be understood that the detailed description of the invention described in description above is merely to illustrate the present invention rather than limits the scope of the present invention.After having read the present invention, those skilled in the art all fall within the application claims limited range to the amendment of the various equivalents of the present invention.
Claims (10)
1. the construction method pouring tunnel double-lining self-compacting concrete, it is characterised in that construction procedure is as follows:
Step one, arranges observation window and top pouring hole on trolley formwork (1)；
Step 2, opens the door of whole observation windows；
Step 3, resettlement pump in the front of chassis direct of travel, tunnel one serve as a contrast (8)；
Step 4, ground pump pump line puts in storage: after chassis formwork completes, and is accessed in chassis by ground pump by hard pump line, and causes the middle observation window of side by soft pump line and put in storage；
Step 5, after pump line installation, opens ground switch pump and pumps outside trolley formwork and pour self-compacting concrete；
Step 6, template lower concrete pours: the one side concrete poured that puts in storage flows to opposite side from side, until the door of lower observation window (2) is closed；
Step 7, changes pipe: continue casting concrete, is removed by soft pump line therefrom observation window, and the top pouring hole (4) closed on observation window in this is connected, and in closedown, the door of observation window (12) continues to pour；
Step 8, when concrete liquid level is close to upper observation window (13), closes and closes observation window (13) until having poured.
The construction method pouring tunnel double-lining self-compacting concrete the most according to claim 1, it is characterized in that: in described step one, both sides obliquely downward at trolley formwork (1) arranges lower observation window (2), both sides waist at trolley formwork (1) arranges middle observation window (12), upper observation window (13) and top pouring hole (4) are set at the top of trolley formwork (1), all observation windows are equipped with can the door of folding, described top pouring hole (4) is at least provided with two, at least one be positioned at trolley formwork constructed tunnel two lining one end, at least one be positioned at trolley formwork do not construct tunnel two lining one end.
nullThe construction method pouring tunnel double-lining self-compacting concrete the most according to claim 1，It is characterized in that: in described step 4，Hard pump line (5) is used to pick out from ground pump discharge，Hard pump line (5) serves as a contrast the bottom of (8) along tunnel one and lays and extend near trolley formwork (1)，Chassis needle beam (3) is horizontally entered into internal after 90 ° of elbow (7) conversion elevations of two hard pump lines、And extend close to or top pouring hole (4) position of corresponding trolley formwork，Then one 90 ° elbow (7) conversion directions are reconnected upward，The union joint of 90 ° of elbows (7) connects the soft pump line (6) of sufficient length，Soft pump line is upwardly into chassis needle beam (3) top and to curving、Introduce the middle observation window (12) of this side，Then at the upper hard short tube of the spreading (11) of soft pump line (6)，And hard short tube (11) is temporarily fixed on middle observation window (12).
The construction method pouring tunnel double-lining self-compacting concrete the most according to claim 1, it is characterized in that: in described step 6, put in storage and pour in the self-compacting concrete middle observation window (12) one side in step 4, concrete slurry therefrom observation window (12) side flows to opposite side, observe template both sides concrete liquid level discrepancy in elevation situation, when both sides liquid level rises to the lower limb of lower observation window (2), close the door of the lower observation window (2) of both sides.
The construction method pouring tunnel double-lining self-compacting concrete the most according to claim 1, it is characterised in that: in described step 7, comprise the following steps:
Step a, continues casting concrete, until concrete liquid level is raised above the position of top edge about 10cm of lower observation window (2), the template both sides liquid level discrepancy in elevation less than stopping during 30cm pouring；
Step b, upper for the hard short tube (11) middle observation window (12) from step 4 dismounting is left soft pump line (6), top pouring hole (4) close or corresponding with observation window in this (12) for soft pump line is connected firmly, and closes the door of observation window in both sides (12).
The construction method pouring tunnel double-lining self-compacting concrete the most according to claim 1, it is characterised in that: in described step 8, comprise the following steps:
Step c, self-compacting concrete continues to put in storage from top pouring hole (4) to pour, and until concreting to when will flush with die head, the anti-floating jack that will stretch out observation window (13) is removed, and closes the door closing observation window (13), until having poured；
Step d, closes this top pouring hole (4), removes soft pump line (6)；
Step e, adjusts the length of hard pump line (5), in order to the middle observation window (12) near the pouring hole of top that the next one marched to is close or corresponding, carries out the construction of next construction position in storehouse, until whole constructing tunnel is complete.
The construction method pouring tunnel double-lining self-compacting concrete the most according to claim 2, it is characterised in that: in described step one, upper observation window (13) and top pouring hole (4) are spaced setting in units of the single-chip template of trolley formwork；The absolute altitude of described lower observation window (2) is the most equal, and in units of the single-chip template of trolley formwork, arrange at template both sides space crossings, the absolute altitude of described middle observation window (12) is the most equal, and in units of the single-chip template of trolley formwork, arranging at template both sides space crossings, described lower observation window (2) and middle observation window (12) are arranged at the non-homonymy of same single-chip template.
The construction method pouring tunnel double-lining self-compacting concrete the most according to claim 3, it is characterized in that: the hard pump line (5) in described step 4,90 ° of elbows (7) and hard short tube (11) are steel pipe, described soft pump line is rubber tube, all uses buckle merogenesis to be connected between steel pipe, between rubber tube and between steel pipe with rubber tube.
9. according to the construction method pouring tunnel double-lining self-compacting concrete described in claim 3 or 8, it is characterized in that: the selection of the top pouring hole (4) in described step 4 need to take into account flow distance and the length of construction position in storehouse of concrete, and the selection of described middle observation window (12) need to close on this top pouring hole (4).
The construction method pouring tunnel double-lining self-compacting concrete the most according to claim 3, it is characterized in that: in described step 6, after self-compacting concrete is full of template bottom space, continue one side to pour, template both sides liquid level synchronizes to rise, and the liquid level rate of climb pouring side of putting in storage can be slightly larger than the opposite side rate of climb, causes both sides liquid level certain discrepancy in elevation occur, therefrom the liquid level discrepancy in elevation of template both sides observed by observation window (12), and the mode processing the discrepancy in elevation has:
If described self-compacting concrete mobility is poor, vibrating spear drain when flowing to opposite side from side, can be used；
If the both sides liquid level discrepancy in elevation is bigger, only hard short tube (11) need to be taken apart from the middle observation window (12) of this side, and move to fix on observation window in opposite side (12) the most temporarily, then pour to both sides liquid level and flush.
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| CN106499408A (en) * | 2016-11-02 | 2017-03-15 | 北京翔鲲水务建设有限公司 | Wholecircle full section of tunnel one-shot forming self-compacting concrete pouring construction method |
| CN106968698A (en) * | 2017-04-13 | 2017-07-21 | 中煤能源研究院有限责任公司 | Gob side entry retaining pours the template hydraulic support and its application method of pier stud by lane |
| CN107060830A (en) * | 2017-06-09 | 2017-08-18 | 中铁十七局集团第五工程有限公司 | Single-track tunnel secondary lining concrete pours device and its construction method by window |
| CN109236324A (en) * | 2018-08-01 | 2019-01-18 | 中铁十九局集团第二工程有限公司 | A kind of lining trolley injected hole improved method |
| CN110735651A (en) * | 2019-09-11 | 2020-01-31 | 北京翔鲲水务建设有限公司 | through-hole pipe self-compacting concrete pouring construction method |
| CN110939463A (en) * | 2019-11-21 | 2020-03-31 | 中铁隧道局集团有限公司 | Movable full-section integral steel mould lining trolley and application thereof in pumping and pouring of secondary lining concrete |
| CN111236975A (en) * | 2020-01-19 | 2020-06-05 | 中铁三局集团有限公司 | Large-section tunnel secondary lining separated-bin pouring construction equipment and construction method |
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| CN106499408A (en) * | 2016-11-02 | 2017-03-15 | 北京翔鲲水务建设有限公司 | Wholecircle full section of tunnel one-shot forming self-compacting concrete pouring construction method |
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| CN106968698B (en) * | 2017-04-13 | 2019-07-30 | 中煤能源研究院有限责任公司 | Gob side entry retaining pours the template hydraulic support and its application method of pier stud by lane |
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| CN109236324A (en) * | 2018-08-01 | 2019-01-18 | 中铁十九局集团第二工程有限公司 | A kind of lining trolley injected hole improved method |
| CN110735651A (en) * | 2019-09-11 | 2020-01-31 | 北京翔鲲水务建设有限公司 | through-hole pipe self-compacting concrete pouring construction method |
| CN110735651B (en) * | 2019-09-11 | 2022-01-28 | 北京清河水利建设集团有限公司 | Self-compacting concrete pouring construction method for through-hole pipe |
| CN110939463A (en) * | 2019-11-21 | 2020-03-31 | 中铁隧道局集团有限公司 | Movable full-section integral steel mould lining trolley and application thereof in pumping and pouring of secondary lining concrete |
| CN111236975A (en) * | 2020-01-19 | 2020-06-05 | 中铁三局集团有限公司 | Large-section tunnel secondary lining separated-bin pouring construction equipment and construction method |
| CN117069424A (en) * | 2023-07-03 | 2023-11-17 | 广东粤海珠三角供水有限公司 | Prestressed lining concrete and preparation method and construction method thereof |
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