CN104328782A - Expansive pouring device and method for governing railway roadbed sedimentation and deformation - Google Patents
Expansive pouring device and method for governing railway roadbed sedimentation and deformation Download PDFInfo
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- CN104328782A CN104328782A CN201410690251.7A CN201410690251A CN104328782A CN 104328782 A CN104328782 A CN 104328782A CN 201410690251 A CN201410690251 A CN 201410690251A CN 104328782 A CN104328782 A CN 104328782A
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- castinplace pile
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
- E01B2/006—Deep foundation of tracks
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/08—Deep or vertical foundation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0075—Textiles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2450/00—Gaskets
- E02D2450/10—Membranes
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Architecture (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to the field of railway roadbed maintenance, in particular to an expansive pouring device and a method for governing railway roadbed sedimentation and deformation. The expansive pouring device comprises a pouring pile core (1), a containing bag (2) and a slip casting pipe (11), wherein the slip casting pipe (11) is connected on the upper end of the pouring pile core (1) through a sleeved nut (4), the containing bag (2) sleeves the lower end of the pouring pile core (1) through a contracting sealing ring (3), and an expansive ring (12) is arranged on the contact segment of the slip casting pipe (11) and a roadbed (10). The expansive pouring device uses a frame structure supporting principle and a pile type structure principle, expansive foam, slip casting equipment and monitoring equipment are poured by matching with high pressure, the damaged roadbed can be accurately lifted, the accurate degree can realize plus-minus 1mm, the material using rate is high, the government of a large-scale cavity or an underground dark river is also effective, the damage to the roadbed structure is small, and the construction is rapid and convenient.
Description
Technical field
The present invention relates to railway bed area of maintenance, particularly relate to a kind of method of expansiveness device for casting and the distortion of improvement railroad bed settlement thereof.
Background technology
China is vast in territory, the landform more complicated of railway process, roadbed is as the important component part of railway, it is the basis of bearing track structure weight and train load and various additional force, also be the weakest least stable component in line project, the irregularity of roadbed physical dimension can cause the Geometric irregularity of track naturally.In order to ensure train safe, even running, roadbed must have that high strength, rigidity are large, stability, durability, the good characteristic such as not yielding, therefore, as carrying high-speed railway basis---the design of roadbed is subject to paying attention to more and more widely.And in the ordinary course of things, the control difficulty of the stabilized soil pavement of most sections ground is all little, the main bugbear brought to engineering is the solidification problem that sedimentation and deformation and various control measures thereof produce, and thus subgrade settlement problem on deformation is the major control factors will considered in Railway Design.Along with the transformation of China both wired raising speed by a large scale and speed rail, the building of high-speed railway, the frequent subgrade settlement problem on deformation occurred becomes urgently to be resolved hurrily.
From the case of administering subgrade settlement distortion in the past, the conventional method of being out of shape for slowing down and administer ground settlement after construction both at home and abroad mainly contains Sand-gravel-cushion Technioue, dynamic compaction, down hole deep compaction compacting method, plastic draining board surcharge preloading or vacuum method, Dynamic Drainage Consolidation Method, cement Powder Spray Pile, cement mixing pile, broken stone pile, sand compaction pile, CFG (CFG stake) and reinforced concrete pile net structure and pile slab structure etc.But, what require orbital forcing due to high-speed railway improves constantly, the continuous shortening in skylight, the defect that these methods exist becomes and becomes increasingly conspicuous, such as, it is larger that Sand-gravel-cushion Technioue changes the thickness filled out, and cost is higher, and be not suitable for processing the ground that Soft Soil Layer is thicker, buried depth is larger, groundwater table high, easy infiltration section water-pumping/draining is costly; The vibrations that dynamic compaction produces and noise are comparatively large, more responsive to earthwork water content, when water content is higher, easily form spongy soil after hammering, and the construction plant of requirement is comparatively large, if weight contact fragment of brick or concrete block easily cause casualties; Plastic draining board preloading long in time limit, procedure calls is high, and precompressed comparatively conference significantly increases cost, is difficult to solve ground secondary consolidation settlement; The treating depth of Dynamic Drainage Consolidation Method is generally less than 10 meters, complex procedures, requires higher to precipitation, drainage system, can not section, independent process pool, affects larger by surrounding enviroment; The reinforcement depth of cement Powder Spray Pile is less than 18 meters, is not suitable for processing organic content, soil that index of plasticity is larger, and cost is higher; Ground uniformity after cement mixing pile process is difficult to control, and this is because construction technology cannot ensure that Site must be more even on the one hand, is because pile strength is uneven in the axial direction on the other hand, and the settling amount processed after composite foundation is larger; The reinforcement depth of broken stone pile is generally less than 25 meters, involves great expense, and is difficult to pile on the mucky soil that vane-shear strength is very low, the more difficult control in stake footpath, and bearing power increase amplitude is less, and settlement after construction is difficult to control; The reinforcement depth of sand compaction pile is generally less than 20 meters, and process muddy foundation need in conjunction with piling prepressing, and need control replacement ratio well, is not suitable for high-bearing capacity requirement ground; CFG stake cost is higher, is not suitable for processing muddy foundation; Reinforced concrete pile net structure and pile slab structure complex procedures, cost is higher relative to composite foundation.And the major part in these methods is all not suitable for the subgrade settlement distortion processing non-fragment orbit, this is because non-fragment orbit is by the restriction of self adjustment capability, proposes stricter requirement to the sedimentation and deformation of engineering under line.
At present, the domestic System and method for having occurred being applicable to ballastless track bed sinking be carried out to lifting, particular content can be respectively two patents of " 201310027717.0 " and " 201320039996.8 " see application number, but, it is ballastless track bed that this System and method for is only only applicable to lifting, carry out slip-casting lifting under track plates, the defect of deep foundation can not be processed, thus can only alleviate foundation settlement deformation within the limited time.And, in slip casting process, easily produce a large amount of materials run off, increase construction cost.If there is comparatively macroscopic-void or underground river, underground under ground, can cause cannot lifting or lifting DeGrain, and because deep foundation problem is not solved at all, after construction, after a period of time, sedimentation still can occur, and needs repeatedly to administer.And lifting precision is lower, minimumly can only reach 3 to about 5mm, the 1mm that is less than required from high ferro Foundation Treatment control accuracy differs greatly.
Summary of the invention
The object of the present invention is to provide a kind of method of expansiveness device for casting and the distortion of improvement railroad bed settlement thereof, solve and cannot administer deep foundation the administering method of railroad bed settlement distortion at present, and control accuracy is poor, also easily cause by underground environment affects that regulation effect is poor, the unabiding problem of regulation effect.
For solving the problem, the technical solution used in the present invention is:
A kind of expansiveness device for casting, comprise castinplace pile core, bag container, contraction seal ring and cover connected nut, described bag container is firmly socketed in the lower end of described castinplace pile core by shrinking seal ring, described cover connected nut is arranged on the upper end of castinplace pile core, for connecting Grouting Pipe.
Further technical scheme is, the diameter before described castinplace pile core retainer plate expands after connecing described bag container is at 1 ~ 10cm, and the diameter after expansion is at 1 ~ 200cm.
Further technical scheme is, described bag container is high tenacity weaving bag or film.
Administer a method for railroad bed settlement distortion, comprise the following steps:
Step one, height according to cavity in the vertical direction everywhere selects the expansiveness device for casting of different length, described expansiveness device for casting comprises castinplace pile core, bag container, contraction seal ring and cover connected nut, described bag container is firmly socketed in the lower end of described castinplace pile core by shrinking seal ring, described cover connected nut is arranged on the upper end of castinplace pile core;
Step 2, sinking roadbed is drilled with the injection hole in one or more through cavity, the Grouting Pipe being equipped with expansion loop is connected with the upper end of castinplace pile core by cover connected nut, carry out splicing according to desired depth to slurry pipe to lengthen, ensure that bag container can arrive desired depth after expanding in cavity;
Step 3, store up sizing device by outside and injection material is carried out slip casting from Grouting Pipe, and the castinplace pile core inner guided to by Grouting Pipe under injection hole, injection material is two components through mixing, they can not react when Grouting Pipe and the flowing of castinplace pile core inner, be injected into after inside bag container, reduce rapidly owing to contacting rear temperature with surrounding environment, then react rapidly and start to expand, because before injection material foaming, density is little, viscosity is low, not containing particulate material, penetration is strong, can fit tightly in underground rapid diffusion with bag container.
Step 4, control slip casting and adopt interval, the grouting mode successively decreased, material to be implanted completes preliminary expansion, after solidification, judge whether to continue injection and injection rate next time according to the height of lifting, when rising height moves closer to predeterminated target, reduce injecting glue flow gradually, extend the time of operating interval, material complete expansion to be implanted, after solidification, the Uplifting amount of each position on the data determination roadbed obtained according to monitoring device again, judge whether to continue to inject and suitable injection rate, in slip casting, pause, monitoring, again in slip casting operation so repeatedly gradually by steady for the roadbed of sedimentation and deformation, be lifted to predeterminated position exactly, lifting precision is less than ± 1mm, complete improvement.
Further technical scheme is, fluid operating pressure during slip casting, at 1-30Mpa, can make injection material disperse rapidly, penetrate into disease place.
Further technical scheme is, the diameter of described injection hole, at 1 ~ 10cm, does not destroy the reinforcing bar load-carrying construction of concrete foundation or railway bed substantially, and construction fast, conveniently, neatly, only need be filled up with mortar after work and can recover normally to be open to traffic at once.
Further technical scheme is, when processing underground shallow layer or deep layer, there is no the small-sized cavity of underground secret tunnel, also can take away the woven bag part outside slip casting tube core, direct use Grouting Pipe carries out slip-casting lifting, the foam of high-pressure injection just can any gap of surrounding or fault location spread in the past, can arrive more than 10 meters farthest.After Foam Expansion thus and surrounding soil stone form composite structure, play that underground defect is filled up, soil matrix improvement, ground fix and the effect of lifting.Meanwhile, first can also form expansion stake in underground and support, then carry out soil improvement in its periphery direct cannulation injected foam, on stake, injected foam carrys out lifting.This several using method is combined, the ground problem of complexity more than can processing very.And due to control device many, lifting precision is very high.The precision that can meet high ferro needs is less than the requirement of 1mm.
The beneficial effect adopting technique scheme to produce is: the present invention utilizes frame construction support concept and stake formula structural principle, high pressure is coordinated to inject expandable foam and grouting equipment thereof and monitoring equipment, accurate lifting is carried out to disease roadbed, accuracy can reach ± 1mm, and stock utilization is high; Meanwhile, described expansiveness castinplace pile both can be used alone, and can connect together with common Grouting Pipe again collaborative use, further increases its range of application and flexibility.Destroy little to road structure, quick construction, effectively can administer the various degree of depth, various types of subgrade settlement problem on deformation.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of expansiveness device for casting of the present invention.
Fig. 2 is the using state schematic diagram of a kind of expansiveness device for casting of the present invention before slip casting.
Fig. 3-6 is that a kind of expansiveness device for casting of the present invention is at slip casting status of processes schematic diagram.
Fig. 7-Fig. 9 is administering method schematic diagram when the present invention is directed to small-sized, medium-sized, large-scale cavity.
Figure 10 shows that to the present invention is directed to underground large-scale and have the administration way schematic diagram in the cavity of a lot of secret tunnel.
Figure 11 shows and the present invention is directed to the large-scale and administration way schematic diagram in the cavity of highly differing in underground.
In figure: 1-castinplace pile core, 2-bag container, 3-shrinks seal ring, and 4-overlaps connected nut, 5-injection material, 6-soil, the small-sized cavity of 7-, the neutral cavity of 8-, the large-scale cavity of 9-, 10-roadbed, 11-Grouting Pipe, 12-expansion loop, 13-underground secret tunnel, 14-injection hole.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1-Fig. 6 shows an embodiment of a kind of expansiveness of the present invention device for casting: a kind of expansiveness device for casting, comprise castinplace pile core 1, bag container 2, shrink seal ring 3 and cover connected nut 4, described bag container 2 is firmly socketed in the lower end of described castinplace pile core 1 by shrinking seal ring 3, described cover connected nut 4 is arranged on the upper end of castinplace pile core 1, for connecting Grouting Pipe 11.
According to a preferred embodiment of a kind of expansiveness device for casting of the present invention, the diameter before described castinplace pile core 1 expands after being socketed described bag container 2 is at 3 ~ 5cm, and the diameter after expansion is at 3 ~ 100cm.
According to another preferred embodiment of a kind of expansiveness device for casting of the present invention, described bag container 2 is high tenacity weaving bag or film.
Fig. 1-Fig. 6 also show a kind of method of administering railroad bed settlement distortion of the present invention, comprises the following steps:
Step one, height according to cavity in the vertical direction everywhere selects the expansiveness device for casting of different length, described expansiveness device for casting comprises castinplace pile core 1, bag container 2, shrinks seal ring 3 and cover connected nut 4, described bag container 2 is firmly socketed in the lower end of described castinplace pile core 1 by shrinking seal ring 3, described cover connected nut 4 is arranged on the upper end of castinplace pile core 1;
Step 2, sinking roadbed 10 is drilled with the injection hole 14 in one or more through cavity, the Grouting Pipe 11 being equipped with expansion loop 12 is connected with the upper end of castinplace pile core 1 by cover connected nut 4, carry out splicing according to desired depth to slurry pipe 11 to lengthen, ensure that bag container 2 can arrive desired depth after expanding in cavity;
Step 3, store up sizing device by outside and injection material 5 is carried out slip casting from Grouting Pipe 11, and the castinplace pile core 1 guided under injection hole 14 by Grouting Pipe 11 is inner, injection material 5 is two components through mixing, they can not react when Grouting Pipe 11 and 1 internal flow of castinplace pile core, be injected into after inside bag container 2, reduce rapidly owing to contacting rear temperature with surrounding environment, then react rapidly and start to expand, because before injection material foaming, density is little, viscosity is low, not containing particulate material, penetration is strong, can fit tightly with bag container in underground rapid diffusion.
Step 4, control slip casting and adopt interval, the grouting mode successively decreased, material 5 to be implanted completes preliminary expansion, after solidification, judge whether to continue injection and injection rate next time according to the height of lifting, when rising height moves closer to predeterminated target, reduce injecting glue flow gradually, extend the time of operating interval, material 5 to be implanted complete expansion, after solidification, the Uplifting amount of each position on the data determination roadbed obtained according to monitoring device again, judge whether to continue to inject and suitable injection rate, in slip casting, pause, monitoring, again in slip casting operation so repeatedly gradually by steady for the roadbed of sedimentation and deformation, be lifted to predeterminated position exactly, lifting precision is less than ± 1mm, complete improvement.
According to a kind of preferred embodiment administering the method for railroad bed settlement distortion of the present invention, fluid operating pressure during slip casting, at 1-30Mpa, can make injection material disperse rapidly, penetrate into disease place.
According to a kind of another preferred embodiment administering the method for railroad bed settlement distortion of the present invention, the diameter of described injection hole 14 is at 1 ~ 10cm.Substantially do not destroy the reinforcing bar load-carrying construction of concrete foundation or railway bed, construction fast, conveniently, neatly, only need be filled up with mortar after work and can recover normally to be open to traffic at once.
Fig. 7-Fig. 9 shows administering method when the present invention is directed to small-sized, medium-sized, large-scale cavity, and namely according to the size in cavity, uniform employing many expansiveness device for casting, utilize multiple bag container 2 to support.Wherein it should be noted that improvement for neutral and large-scale cavity time, slip casting is many slip castings simultaneously, the mode simultaneously adopting interval to rest and to successively decrease controls grouting amount, to carry out synchronous lifting everywhere to the roadbed of sedimentation and deformation, roadbed entirety is prevented to be damaged because of discontinuity, simultaneously, all right strict console rising amount, prevent lifting from obtaining too much, the Uplifting amount determining each position on roadbed according to the real-time measurements of monitoring device is all needed in whole lifting operating process, to ensure that roadbed can be steady on each position, be lifted to precalculated position accurately.
Described cavity can be divided into small-sized empty 7, neutral cavity 8 and large-scale by empty 9.
Figure 10 shows that to the present invention is directed to underground large-scale and have the administration way in the cavity of a lot of secret tunnel, and it is large-scale by empty 9 that roadbed often not only exists underground 10 times, also may there is more underground secret tunnel 13.If directly injection injection material 5 is filled and lifting cavity, a large amount of loss and the waste of injection material 5 can be caused undoubtedly, causing cannot lifting or lifting DeGrain, because ground steadiness problem is not solved at all, after construction, after a period of time, sedimentation still can occur, and needs repeatedly to administer.And injection material 5 can constrain in limited space by the present invention, and the expansion force of injection material 5 is converted into longitudinal holding power, not only greatly reduce the unnecessary mistake of stream of injection material 5, greatly improve the utilization rate of injection material 5, remarkable reduction construction cost, and fundamentally reinforce and lifting ground, can not secondary settlement be there is, control grouting amount and rising height by monitoring device for lifting operation provides real-time data parameters to assist, accuracy is less than ± 1mm.
Figure 11 shows the administration way that the present invention is directed to the cavity that the large-scale and degree of depth in underground differs, when roadbed 10 times is large-scale by empty 9 except there is underground, also exist the underground small-sized empty 7 of more shallow-layer or deep layer or underground medium-sized empty 8 time, expansiveness castinplace pile core can be first adopted to carry out lifting, support, reinforcing deep ground to underground large-scale empty 9.Then, in order to Lesion more efficiently, expansiveness castinplace pile core can be separated with Grouting Pipe 11 and use, slip casting is directly carried out to less underground cavity in the basis of expansiveness castinplace pile core, injection material 5 under high pressure towards periphery the fault location of soil spread rapidly, permeate, then foaming and intumescing, rely on produce expansion force compacting surrounding soil, further lifting roadbed, consolidated subsoil.Assist to control grouting amount and rising height according to the real-time measurements of monitoring device in whole lifting operating process, accuracy is less than ± 1mm.
The present invention is directed to the administration way in the cavity of multiple different depth, for the subgrade settlement distortion only caused by less underground cavity, in order to Lesion more efficiently, usually expansiveness castinplace pile core is separated with Grouting Pipe 11 and use, owing to there is not the losing issue of injection material 5, thus can directly by Grouting Pipe injection injection material 5, the fault location diffusion of the quick soil towards periphery of the high-pressure osmosis power of its liquid is utilized to come, then foaming and intumescing, utilize the expansion force compacting surrounding soil in the pressure of slip casting and injection material 5 foaming process, lifting roadbed.Assist to control grouting amount and rising height according to the real-time measurements of monitoring device in whole lifting operating process, accuracy is less than ± 1mm.
The distribution of the slurry that the slip casting degree of depth and injection are gone down is adjustable.When overlapping the woven bag part had outside slip casting tube core, Foam Expansion scope is constrained in a narrow and small scope, thus forms foundation pile, plays a supporting role.When processing underground shallow layer or deep layer, there is no the small-sized cavity of underground secret tunnel, also can take away the woven bag part outside slip casting tube core, direct use Grouting Pipe carries out slip-casting lifting, and the foam of high-pressure injection just can any gap of surrounding or fault location spread in the past, can arrive more than 10 meters farthest.After Foam Expansion thus and surrounding soil stone form composite structure, play that underground defect is filled up, soil matrix improvement, ground fix and the effect of lifting.Meanwhile, first can also form expansion stake in underground and support, then carry out soil improvement in its periphery direct cannulation injected foam, on stake, injected foam carrys out lifting.This several using method is combined, the ground problem of complexity more than can processing very.And due to control device many, lifting precision is very high.The precision that can meet high ferro needs is less than the requirement of 1mm.
The advantage that the present invention brings is as follows:
(1) stock utilization is high, for the large-scale cavity administered under ground or underground river, underground still very effective
Effectively can administer overall roadbed last transition larger part, particularly underground to have been formed bottom the very dark underground defect area of the penetrability of very large cavity or formation or roadbed and there is large the water gaging even region of circulating water.No matter be concrete grout or foam slurry, all there is a large amount of loss and effective phenomenon of filling cannot be carried out.And expansiveness castinplace pile core can make injected foamed material expand therein and complete curing reaction, the expansion force of injection material is converted into longitudinal holding power, form diameter 3 ~ 100cm cylinder expansion foundation pile, underground VOID POSITIONS is formed and effectively supports and lifting, avoid injecting paste material to run off in a large number, and the space between foam stake does not need slip casting again to fill, and greatly reduces material consumption, therefore, foam stake method effectively can make up the deficiency of direct slip casting method.And, because the geology density of underground diverse location is different, the foam stake formed is surface is cylinder in irregular shape, greatly can strengthen frictional force and the support force of foundation pile, more much bigger than general support force that is straight-through up and down, ganoid concrete friction stake.And the proportion of this stake is very little, also have the effect of positive buoyancy in underground, avoid the secondary subsidence problems because large weight concrete stake causes.In addition, can also when opening is very little to carrying out Wicresoft's punching, pile anchoring, fixing roadbed under roadbed, preventing from sinking and ground lifting operation.
(2) destroy little to road structure, quick construction
Surface perforate is little, and the general 2 ~ 3cm of diameter is maximum less than 8cm, effectively can avoid the stiffener in concrete structure, thus not destroy the main force support structure of the reinforcing bar load-carrying construction of concrete foundation or railway bed.The high pressure swelling foam material injected can within a few minutes solidifying and setting.The method construction fast, conveniently, neatly.Only needing simply to fill up surperficial perforate with fast strength mortar after work can the curing time of maintenance 1 to 2 week (carries out concrete structure reparation needs at least) under normal circumstances, can recover normally to be open to traffic at once.Device therefor small volume, without the need to very large construction plant, the highest 3mm that is no more than of such as rig, can construct in tunnel, subway, even building.Usually the piling work of concrete pile cannot be carried out in these places at all.In addition material consumption is few, and the material weight required for the defect of underground filling up same volume only has a thirtieth of cement paste, greatly reduces the workloads such as the preparation of construction material, carrying.Manually considerably less needed for execute-in-place, even the teams and groups of 2 people just can complete.
(3) be applicable to administer various subgrade settlement deformation
After geologic radar detection subgrade settlement situation, can by expansiveness castinplace pile core and Grouting Pipe flexibly with the use of, the piling of underground cavity can be fixed and combine with the operation of concrete slab hemostasis high pressure expandable foam lifting, thus realize shallow-layer, deep layer and the slip-casting lifting ground all standing etc. under all kinds of Complicated Geologic Condition under water.This System and method for is not only applicable to railway, is also applicable to the fields such as subway, highway, municipal administration, building, bay work, has greatly widened the range of application of existing foam filling system.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the distortion carried out building block and/or layout and improving, to those skilled in the art, other purposes also will be obvious.
Claims (6)
1. an expansiveness device for casting, it is characterized in that: comprise castinplace pile core (1), bag container (2), shrink seal ring (3) and cover connected nut (4), described bag container (2) is firmly socketed in the lower end of described castinplace pile core (1) by shrinking seal ring (3), described cover connected nut (4) is arranged on the upper end of castinplace pile core (1), for connecting Grouting Pipe (11).
2. a kind of expansiveness device for casting according to claim 1, is characterized in that: described castinplace pile core (1) be socketed described bag container (2) expand afterwards before diameter at 1 ~ 10cm, the diameter after expansion is at 1 ~ 200cm.
3. a kind of expansiveness device for casting according to claim 1, is characterized in that: described bag container (2) is high tenacity weaving bag or film.
4. administer a method for railroad bed settlement distortion, it is characterized in that comprising the following steps:
Step one, height according to cavity in the vertical direction everywhere selects the expansiveness device for casting of different length, described expansiveness device for casting comprises castinplace pile core (1), bag container (2), shrinks seal ring (3) and cover connected nut (4), described bag container (2) is firmly socketed in the lower end of described castinplace pile core (1) by shrinking seal ring (3), described cover connected nut (4) is arranged on the upper end of castinplace pile core (1);
Step 2, sinking roadbed (10) is drilled with the injection hole (14) in one or more through cavity, the Grouting Pipe (11) being equipped with expansion loop (12) is connected with the upper end of castinplace pile core (1) by cover connected nut (4), carry out splicing according to desired depth to slurry pipe (11) to lengthen, ensure that bag container (2) can arrive desired depth after expanding in cavity;
Step 3, store up sizing device by outside and injection material (5) is carried out slip casting from Grouting Pipe (11), and the castinplace pile core (1) guided under injection hole (14) by Grouting Pipe (11) is inner, injection material (5) is two components through mixing, they can not react when Grouting Pipe (11) and castinplace pile core (1) internal flow, after being injected into bag container (2) the inside, reduce rapidly owing to contacting rear temperature with surrounding environment, then react rapidly and start to expand;
Step 4, control slip casting and adopt interval, the grouting mode successively decreased, material to be implanted (5) completes preliminary expansion, after solidification, judge whether to continue injection and injection rate next time according to the height of lifting, when rising height moves closer to predeterminated target, reduce injecting glue flow gradually, extend the time of operating interval, material to be implanted (5) complete expansion, after solidification, the Uplifting amount of each position on the data determination roadbed obtained according to monitoring device again, judge whether to continue to inject and suitable injection rate, in slip casting, pause, monitoring, again in slip casting operation so repeatedly gradually by steady for the roadbed of sedimentation and deformation, be lifted to predeterminated position exactly, lifting precision is less than ± 1mm, complete improvement.
5. a kind of method of administering railroad bed settlement distortion according to claim 4, is characterized in that: fluid operating pressure during slip casting is at 1 ~ 30Mpa.
6. a kind of method of administering railroad bed settlement distortion according to claim 4, is characterized in that: the diameter of described injection hole (14) is at 1 ~ 10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410690251.7A CN104328782B (en) | 2014-11-27 | 2014-11-27 | A kind of expansiveness perfusion support arrangement and the method administering railroad bed settlement deformation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410690251.7A CN104328782B (en) | 2014-11-27 | 2014-11-27 | A kind of expansiveness perfusion support arrangement and the method administering railroad bed settlement deformation thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104328782A true CN104328782A (en) | 2015-02-04 |
| CN104328782B CN104328782B (en) | 2016-06-29 |
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| CN201410690251.7A Active CN104328782B (en) | 2014-11-27 | 2014-11-27 | A kind of expansiveness perfusion support arrangement and the method administering railroad bed settlement deformation thereof |
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| CN104652415A (en) * | 2015-02-09 | 2015-05-27 | 郑州安源工程技术有限公司 | Underground pipeline sedimentation repair high polymer membrane bag grouting method |
| CN105926658A (en) * | 2016-05-10 | 2016-09-07 | 中国科学院武汉岩土力学研究所 | Capsule type pouring and filling method and structure for large-size karst pile foundation construction |
| CN106285775A (en) * | 2016-10-10 | 2017-01-04 | 江苏建筑职业技术学院 | Cover goaf filling under a kind of structures and expand bag and construction method |
| CN107165002A (en) * | 2017-05-17 | 2017-09-15 | 中铁西北科学研究院有限公司 | A kind of grouting equipment and its construction method |
| CN107227859A (en) * | 2016-03-23 | 2017-10-03 | 上海杰欧地基建筑科技有限公司 | Inject expanded polyurethane mixture reparation with settling terrace and reinforcement based method |
| CN108589696A (en) * | 2018-05-11 | 2018-09-28 | 浙江诚骏建设工程有限公司 | A kind of road construction method for weakening road sinks at soft soil property |
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| CN111472221A (en) * | 2020-04-15 | 2020-07-31 | 陕西融创交通科技有限公司 | Subgrade settlement treatment method |
| CN111648776A (en) * | 2020-06-16 | 2020-09-11 | 中铁十四局集团隧道工程有限公司 | Rapid treatment method for preventing collapse and expansion of through funnel-shaped tunnel |
| CN112323853A (en) * | 2019-08-05 | 2021-02-05 | 张继红 | Self-adaptive linear underground engineering structure and transverse deformation control method thereof |
| CN113174797A (en) * | 2021-04-02 | 2021-07-27 | 三峡大学 | Device and method for repairing and improving road surface bearing capacity |
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| CN104652415B (en) * | 2015-02-09 | 2016-08-24 | 郑州安源工程技术有限公司 | High-polymer membrane bag grouting method is repaired in underground piping sedimentation |
| CN104652415A (en) * | 2015-02-09 | 2015-05-27 | 郑州安源工程技术有限公司 | Underground pipeline sedimentation repair high polymer membrane bag grouting method |
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| CN108589696A (en) * | 2018-05-11 | 2018-09-28 | 浙江诚骏建设工程有限公司 | A kind of road construction method for weakening road sinks at soft soil property |
| CN109137699A (en) * | 2018-10-08 | 2019-01-04 | 励土峰 | A method of repairing dell |
| CN112323853A (en) * | 2019-08-05 | 2021-02-05 | 张继红 | Self-adaptive linear underground engineering structure and transverse deformation control method thereof |
| CN111472221A (en) * | 2020-04-15 | 2020-07-31 | 陕西融创交通科技有限公司 | Subgrade settlement treatment method |
| CN111648776A (en) * | 2020-06-16 | 2020-09-11 | 中铁十四局集团隧道工程有限公司 | Rapid treatment method for preventing collapse and expansion of through funnel-shaped tunnel |
| CN111648776B (en) * | 2020-06-16 | 2021-11-16 | 中铁十四局集团隧道工程有限公司 | Rapid treatment method for preventing collapse and expansion of through funnel-shaped tunnel |
| CN113174797A (en) * | 2021-04-02 | 2021-07-27 | 三峡大学 | Device and method for repairing and improving road surface bearing capacity |
| CN113174797B (en) * | 2021-04-02 | 2022-04-22 | 三峡大学 | Device and method for repairing and improving road surface bearing capacity |
| CN115027507A (en) * | 2022-06-07 | 2022-09-09 | 中铁二院工程集团有限责任公司 | Railway line structure additionally arranged in existing railway land boundary and train running method |
| CN115027507B (en) * | 2022-06-07 | 2024-05-28 | 中铁二院工程集团有限责任公司 | Railway line structure additionally arranged in boundary of existing railway land and train running method |
| CN115680043A (en) * | 2022-12-05 | 2023-02-03 | 中铁四院集团工程建设有限责任公司 | Method for correcting deviation of rescue channel of operating railway bridge |
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