CN105803957A - Box culvert jacking device and box culvert jacking method - Google Patents

Box culvert jacking device and box culvert jacking method Download PDF

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Publication number
CN105803957A
CN105803957A CN201610211923.0A CN201610211923A CN105803957A CN 105803957 A CN105803957 A CN 105803957A CN 201610211923 A CN201610211923 A CN 201610211923A CN 105803957 A CN105803957 A CN 105803957A
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China
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steel
box culvert
pipe
curtain
erects
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CN201610211923.0A
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Chinese (zh)
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CN105803957B (en
Inventor
李勇
张树国
刘防震
武必秀
张前明
穆小龙
房昆
宁斌
苏世超
刁寒涛
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中铁大桥局集团第四工程有限公司
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F5/00Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
    • E01F5/005Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes

Abstract

The invention provides a box culvert jacking device which comprises a box culvert, three layers of steel gratings, jet concrete, four rows of pipe curtains and joist steel.The four rows of pipe curtains are arranged to be a hollow cube, every two adjacent upper-row pipe curtains are connected through the corresponding joist steel, every two adjacent left-row pipe curtains are connected through the corresponding joist steel, every two adjacent right-row pipe curtains are connected through the corresponding joist steel, one layer of steel gratings are connected with the row of pipe curtain located on the upper portion in the hollow cube, the other two layers of steel gratings are connected with the two rows of pipe curtains on the two side faces in the hollow cube respectively, each layer of steel gratings are filled with jet concrete, and the box culvert is inserted into the hollow cube.The invention further provides a box culvert jacking method.By means of the box culvert jacking device, difficulty appearing in construction can be overcome, and higher benefits can be created.By means of the box culvert jacking method, subgrade settlement can be effectively controlled, and the method is suitable for box culvert jacking under the hard geological condition.

Description

A kind of box culvert advancing device and box culvert advancing method
Technical field
The present invention relates to a kind of box culvert advancing device.
Background technology
Currently known box culvert jacking construction technology is for eating soil jacking, this construction method needs first to arrange working pit in the place of jacking, slide plate is made at the end, hole, Prefabricated reinforced concrete box culvert on slide plate, the prominent basil is made in box culvert front end, then nearby building back from box culvert, then installs jack between back and box culvert base plate, simultaneously to need through highway reinforce, box culvert is headed into roadbed by the counter-force of back by last jack.During jacking, the box culvert front end basil is constantly cut the earth, with digging Sui Ding, till box culvert all heads into roadbed.
Fast development along with urban transportation, oneself is increasing for big cross section shallow embedding formula lower cervical spine passage, for passing through busy urban road, restriction due to traffic above-ground and architectural environment, usually can not adopt traditional cut and cover tunneling technology, and adopt and ground and surrounding are disturbed less shallow mining method, major technique have shallow burial hidden digging, shield method, push bench process, pipe curtain-box culvert method (namely eating soil jacking) etc..
Eat soil jacking technology and be only applicable to weak soil basis, but for the ground that the geological conditions such as severely-weathered metasandstone are special, some problem following can be there is: 1, the basil is still not inserted into roadbed when jacking force reaches design jacking force according to eating soil jacking technology, after continuing to strengthen top power, box culvert internode, correction tooth plate edge etc. occur in various degree burst apart 2, whole box culvert twists new line phenomenon.3, in the process of excavation, the soil body between pipe curtain and box culvert in various degree down drop thus increasing subgrade settlement, surface subsidence is uneven, affects high speed traveling.
Summary of the invention
The present invention proposes a kind of box culvert advancing device, overcomes and causes owing to jacking force is excessive difficulty of burying, box culvert attitude (e.g., coming back) out of control, box culvert damage and the defect that cannot subgrade settlement be control effectively occur in box culvert advancing process.
The technical scheme is that and be achieved in that: a kind of box culvert advancing device, including box culvert, steel grating, jetting cement, four comb curtain and I-steel, four comb curtains are the arrangement of hollow cubic body, connected by I-steel between adjacent two pipe curtains of a comb curtain above, connected by I-steel between adjacent two pipe curtains of the comb curtain in left side, connected by I-steel between adjacent two pipe curtains of the comb curtain on right side, wherein one layer of steel grating is connected with a comb curtain of hollow cubic body inner upper, additionally two-layer steel grating is connected with two comb curtains of two sides in portion in hollow cubic body respectively, every layer of steel grating is all filled jetting cement, box culvert inserts in described hollow cubic body.
Further, between end face and the jetting cement face of described box culvert, it is provided with cushion, the some concrete steel pipes of grafting in described cushion.
Further, some concrete steel pipes are arranged in parallel between two.
Further, connected by I-steel between pipe curtain.
Further, described box culvert includes box culvert body and the basil, described box culvert body and the one-body molded setting of the described basil.
A kind of box culvert advancing method, comprises the following steps:
Step one, being divided into upper and bottom section inside the cube surrounded by pipe curtain;
Step 2, first the upper part of excavation, erects I-steel, and by adjacent to top, left side and right side two pipe curtain I-steel welding, the inner side being close to square tube curtain, left side pipe curtain and right side pipe curtain respectively erects steel grating, fills jetting cement in steel grating;
Step 3, excavates lower part, erects I-steel, and by adjacent with right side for left side two pipe curtain I-steel welding, the inner side being close to left side pipe curtain and right side pipe curtain respectively erects steel grating, fills jetting cement in steel grating;
Step 4, is positioned in the cushion between jetting cement face and box culvert end face by concrete steel pipe, jacking box culvert.
Further, in box culvert advancing method, step 2 sets up at least one bracing members after having filled jetting cement, step 3 sets up at least one bracing members after having filled jetting cement, one layer of paraffin is uniformly sprayed on the steel grating surface filling jetting cement, step 4 is be positioned in the cushion between jetting cement face and box culvert end face by concrete steel pipe, remove bracing members, jacking box culvert.
Preferably, box culvert advancing method, comprise the following steps:
Step one, is divided into two parts by upper part, lower part is divided into two parts, respectively upper left, upper right portion, bottom left section, lower right-most portion;
Step 2, first excavates upper left, erects I-steel, adjacent to top and left side two pipe curtain I-steel are welded, the inner side being close to square tube curtain and left side pipe curtain respectively erects steel grating, fills jetting cement, then set up bracing members in cubical middle part in steel grating;
Step 3, excavation upper right portion erects I-steel, and by adjacent to top and right side two pipe curtain I-steel welding, the inner side being close to upper strata pipe curtain and right side pipe curtain respectively erects steel grating, fills jetting cement in steel grating;
Step 4, excavates bottom left section, erects I-steel, by adjacent for left side two pipe curtain I-steel welding, is close to inside the pipe curtain of left side and erects steel grating, fills jetting cement, then set up bracing members in cubical middle part in steel grating;
Step 5, excavates lower right-most portion, erects I-steel, by adjacent for right side two pipe curtain I-steel welding, erects steel grating against right side pipe curtain, fills jetting cement in steel grating;
Step 6, is positioned in the cushion between jetting cement face and box culvert end face by concrete steel pipe, removes bracing members, jacking box culvert.
Preferably, box culvert advancing method, comprise the following steps:
Step one, is divided into two parts by upper part, lower part is divided into two parts, respectively upper left, upper right portion, bottom left section, lower right-most portion;
Step 2, excavates upper right portion, erects I-steel, adjacent to top and right side two pipe curtain I-steel are welded, the inner side being close to upper strata pipe curtain and right side pipe curtain respectively erects steel grating, fills jetting cement, then set up bracing members in cubical middle part in steel grating;;
Step 3, excavates upper left, erects I-steel, and by adjacent to top and left side two pipe curtain I-steel welding, the inner side being close to square tube curtain and left side pipe curtain respectively erects steel grating, fills jetting cement in steel grating;
Step 4, excavates bottom left section, erects I-steel, by adjacent for left side two pipe curtain I-steel welding, is close to inside the pipe curtain of left side and erects steel grating, fills jetting cement, then set up bracing members in cubical middle part in steel grating;
Step 5, excavates lower right-most portion, erects I-steel, by adjacent for right side two pipe curtain I-steel welding, erects steel grating against right side pipe curtain, fills jetting cement in steel grating;
Step 6, is positioned in the cushion between jetting cement face and box culvert end face by concrete steel pipe, removes bracing members, jacking box culvert.
Preferably, step one is repeated to step 6.
The invention have the benefit that the box culvert advancing device basil of the present invention easily inserts roadbed, box culvert excavation is easily, box culvert is unlikely to deform, reserved cushion, will not there is the imagination that comes back, sound construction in box culvert, the box culvert advancing device of the present invention can not only solve the difficulty occurred in construction, can also effectively shorten the construction period, create higher benefit.The box culvert advancing method of the present invention can effectively control subgrade settlement, it is adaptable to the box culvert advancing under hard geological conditions.Its Construction Principle is first to arrange steel pipe with push bench process in the periphery of box-body jacking position, forms the steel pipe curtain closed, then under the going along with sb. to guard him of this steel pipe curtain the construction technology of jacking casing.This technique is between starting well and received well, utilize small-sized push bench jacking steel pipe in the soil body, fore shaft is relied on to connect in steel pipe side formation bank of tubes between each single tube, and inject water-stop in fore shaft space to reach sealing requirement, form advance support, then adopt jacking casing technique to carry out the novel shallow mining method art of one of underground structure construction again.This box culvert advancing device can be suitably used for the box culvert advancing under hard geological conditions, can reduce the sedimentation being crossed road and increase the stability of excavation face during casing construction.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the generalized section of a kind of one embodiment of box culvert advancing device of the present invention;
Fig. 2 is the perspective view that box culvert advancing device shown in Fig. 1 is combined with culvert;
Fig. 3 is the structural representation of the box culvert advancing of the excavation upper left soil body;
Fig. 4 is the structural representation of the box culvert advancing having excavated the upper right portion soil body after having excavated the upper left soil body;
Fig. 5 is the structural representation of the box culvert advancing of the excavation bottom left section soil body after excavation upper left and the upper right portion soil body;
Fig. 6 is the structural representation of the box culvert advancing of excavation upper left, upper right portion, bottom left section and the lower right-most portion soil body;
In accompanying drawing: 1-box culvert;3-steel grating;4-jetting cement;5-pipe curtain;6-concrete steel pipe;7-I-steel.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
As shown in Figure 1, 2, a kind of box culvert advancing device, including box culvert 1, steel grating 3, jetting cement 4, four comb curtain 5 and I-steel 7, the arrangement in hollow cubic body of four comb curtains 5, connected by I-steel 7 between adjacent two pipe curtains 5 of every comb curtain 5, wherein one layer of steel grating 3 is connected with a comb curtain 5 of hollow cubic body inner upper, additionally two-layer steel grating 3 is connected with two comb curtains 5 of two sides in portion in hollow cubic body respectively, all filling jetting cement 4 in every layer of steel grating 3, box culvert 1 inserts in described hollow cubic body.
It is provided with cushion, the some concrete steel pipes 6 of grafting in described cushion between end face and the jetting cement face of described box culvert 1.
Some concrete steel pipes 6 are arranged in parallel between two.
Connected by I-steel 7 fore shaft between pipe curtain 5.Spacing 50cm mono-Pin.
Described box culvert 1 includes box culvert body and the basil, described box culvert body and the one-body molded setting of the described basil.
As seen in figures 3-6, a kind of box culvert advancing method, comprise the following steps:
Step one, being divided into upper and bottom section inside the cube surrounded by pipe curtain;
Step 2, first the upper part of excavation, erects I-steel, and by adjacent to top, left side and right side two pipe curtain I-steel welding, the inner side being close to square tube curtain, left side pipe curtain and right side pipe curtain respectively erects steel grating, fills jetting cement in steel grating;
Step 3, excavates lower part, erects I-steel, and by adjacent with right side for left side two pipe curtain I-steel welding, the inner side being close to left side pipe curtain and right side pipe curtain respectively erects steel grating, fills jetting cement in steel grating;
Step 4, is positioned in the cushion between jetting cement face and box culvert end face by concrete steel pipe, jacking box culvert.
Further, in box culvert advancing method, step 2 sets up at least one bracing members after having filled jetting cement, step 3 sets up at least one bracing members after having filled jetting cement, one layer of paraffin is uniformly sprayed on the steel grating surface filling jetting cement, step 4 is be positioned in the cushion between jetting cement face and box culvert end face by concrete steel pipe, remove bracing members, jacking box culvert.
Box culvert advancing method in the present embodiment, comprises the following steps:
Step one, is divided into two parts by upper part, lower part is divided into two parts, respectively upper left, upper right portion, bottom left section, lower right-most portion;
Step 2, as it is shown on figure 3, first excavate upper left, erecting I-steel, by adjacent to top and left side two pipe curtain I-steel welding, the inner side being close to square tube curtain and left side pipe curtain respectively erects steel grating, steel grating is filled jetting cement, then sets up bracing members in cubical middle part;
Step 3, as shown in Figure 4, excavation upper right portion erects I-steel, and by adjacent to top and right side two pipe curtain I-steel welding, the inner side being close to upper strata pipe curtain and right side pipe curtain respectively erects steel grating, fills jetting cement in steel grating;
Step 4, as it is shown in figure 5, excavation bottom left section, erects I-steel, by adjacent for left side two pipe curtain I-steel welding, is close to inside the pipe curtain of left side and erects steel grating, fills jetting cement, then set up bracing members in cubical middle part in steel grating;
Step 5, as shown in Figure 6, excavates lower right-most portion, erects I-steel, by adjacent for right side two pipe curtain I-steel welding, erects steel grating against right side pipe curtain, fills jetting cement in steel grating;Uniformly spray one layer of paraffin on the steel grating surface filling jetting cement, reduce jacking frictional resistance;
Step 6, is positioned on box culvert by concrete steel pipe, removes bracing members, jacking box culvert.
Also can adopt following box culvert advancing method, comprise the following steps:
Step one, is divided into two parts by upper part, lower part is divided into two parts, respectively upper left, upper right portion, bottom left section, lower right-most portion;
Step 2, excavates upper right portion, erects I-steel, adjacent to top and right side two pipe curtain I-steel are welded, the inner side being close to upper strata pipe curtain and right side pipe curtain respectively erects steel grating, fills jetting cement, then set up bracing members in cubical middle part in steel grating;
Step 3, excavates upper left, erects I-steel, and by adjacent to top and left side two pipe curtain I-steel welding, the inner side being close to square tube curtain and left side pipe curtain respectively erects steel grating, fills jetting cement in steel grating;
Step 4, excavates bottom left section, erects I-steel, by adjacent for left side two pipe curtain I-steel welding, is close to inside the pipe curtain of left side and erects steel grating, fills jetting cement, then set up bracing members in cubical middle part in steel grating;
Step 5, excavates lower right-most portion, erects I-steel, by adjacent for right side two pipe curtain I-steel welding, erects steel grating against right side pipe curtain, fills jetting cement in steel grating;
Step 6, is positioned on box culvert by concrete steel pipe, removes bracing members, jacking box culvert.
Step 7, repeats step one to step 6.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.

Claims (10)

1. a box culvert advancing device, it is characterized in that: include box culvert, steel grating, jetting cement, four comb curtain and I-steel, four comb curtains are the arrangement of hollow cubic body, connected by I-steel between adjacent two pipe curtains of a comb curtain above, connected by I-steel between adjacent two pipe curtains of the comb curtain in left side, connected by I-steel between adjacent two pipe curtains of the comb curtain on right side, wherein one layer of steel grating is connected with a comb curtain of hollow cubic body inner upper, additionally two-layer steel grating is connected with two comb curtains of two sides in portion in hollow cubic body respectively, every layer of steel grating is all filled jetting cement, box culvert inserts in described hollow cubic body.
2. box culvert advancing device as claimed in claim 1, it is characterised in that: it is provided with cushion between end face and the jetting cement face of described box culvert, the some concrete steel pipes of grafting in described cushion.
3. box culvert advancing device as claimed in claim 2, it is characterised in that: some concrete steel pipes are arranged in parallel between two.
4. box culvert advancing device as claimed in claim 1, it is characterised in that: connected by I-steel between pipe curtain.
5. box culvert advancing device as claimed in claim 1, it is characterised in that: described box culvert includes box culvert body and the basil, described box culvert body and the one-body molded setting of the described basil.
6. a box culvert advancing method, it is characterised in that comprise the following steps:
Step one, being divided into upper and bottom section inside the cube surrounded by pipe curtain;
Step 2, first the upper part of excavation, erects I-steel, and by adjacent to top, left side and right side two pipe curtain I-steel welding, the inner side being close to square tube curtain, left side pipe curtain and right side pipe curtain respectively erects steel grating, fills jetting cement in steel grating;
Step 3, excavates lower part, erects I-steel, and by adjacent with right side for left side two pipe curtain I-steel welding, the inner side being close to left side pipe curtain and right side pipe curtain respectively erects steel grating, fills jetting cement in steel grating;
Step 4, is positioned in the cushion between jetting cement face and box culvert end face by concrete steel pipe, jacking box culvert.
7. box culvert advancing method as claimed in claim 6, it is characterized in that: step 2 sets up at least one bracing members after having filled jetting cement, step 3 sets up at least one bracing members after having filled jetting cement, one layer of paraffin is uniformly sprayed on the steel grating surface filling jetting cement, step 4 is be positioned in the cushion between jetting cement face and box culvert end face by concrete steel pipe, remove bracing members, jacking box culvert.
8. box culvert advancing method as claimed in claim 6, it is characterised in that comprise the following steps:
Step one, is divided into two parts by upper part, lower part is divided into two parts, respectively upper left, upper right portion, bottom left section, lower right-most portion;
Step 2, first excavates upper left, erects I-steel, adjacent to top and left side two pipe curtain I-steel are welded, the inner side being close to square tube curtain and left side pipe curtain respectively erects steel grating, fills jetting cement, then set up bracing members in cubical middle part in steel grating;
Step 3, excavation upper right portion erects I-steel, and by adjacent to top and right side two pipe curtain I-steel welding, the inner side being close to upper strata pipe curtain and right side pipe curtain respectively erects steel grating, fills jetting cement in steel grating;
Step 4, excavates bottom left section, erects I-steel, by adjacent for left side two pipe curtain I-steel welding, is close to inside the pipe curtain of left side and erects steel grating, fills jetting cement, then set up bracing members in cubical middle part in steel grating;
Step 5, excavates lower right-most portion, erects I-steel, by adjacent for right side two pipe curtain I-steel welding, erects steel grating against right side pipe curtain, fills jetting cement in steel grating;
Step 6, is positioned in the cushion between jetting cement face and box culvert end face by concrete steel pipe, removes bracing members, jacking box culvert.
9. box culvert advancing method as claimed in claim 6, it is characterised in that comprise the following steps:
Step one, is divided into two parts by upper part, lower part is divided into two parts, respectively upper left, upper right portion, bottom left section, lower right-most portion;
Step 2, excavates upper right portion, erects I-steel, adjacent to top and right side two pipe curtain I-steel are welded, the inner side being close to upper strata pipe curtain and right side pipe curtain respectively erects steel grating, fills jetting cement, then set up bracing members in cubical middle part in steel grating;;
Step 3, excavates upper left, erects I-steel, and by adjacent to top and left side two pipe curtain I-steel welding, the inner side being close to square tube curtain and left side pipe curtain respectively erects steel grating, fills jetting cement in steel grating;
Step 4, excavates bottom left section, erects I-steel, by adjacent for left side two pipe curtain I-steel welding, is close to inside the pipe curtain of left side and erects steel grating, fills jetting cement, then set up bracing members in cubical middle part in steel grating;
Step 5, excavates lower right-most portion, erects I-steel, by adjacent for right side two pipe curtain I-steel welding, erects steel grating against right side pipe curtain, fills jetting cement in steel grating;
Step 6, is positioned in the cushion between jetting cement face and box culvert end face by concrete steel pipe, removes bracing members, jacking box culvert.
10. as claimed in claim 8 or 9 box culvert advancing method, it is characterised in that: repeat step one to step 6.
CN201610211923.0A 2016-04-06 2016-04-06 A kind of box culvert advancing device and box culvert advancing method Active CN105803957B (en)

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CN107762519A (en) * 2017-11-03 2018-03-06 上海市城市建设设计研究总院(集团)有限公司 The push pipe of subway station end transverse passage-way encloses construction method
CN109797717A (en) * 2019-01-21 2019-05-24 北京通成达水务建设有限公司 The construction method for having subway tunnel is worn on a kind of river

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Publication number Priority date Publication date Assignee Title
CN107762519A (en) * 2017-11-03 2018-03-06 上海市城市建设设计研究总院(集团)有限公司 The push pipe of subway station end transverse passage-way encloses construction method
CN109797717A (en) * 2019-01-21 2019-05-24 北京通成达水务建设有限公司 The construction method for having subway tunnel is worn on a kind of river

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