CN107740596A - A kind of non-open cut Demolition Construction method of underground structure being drilled into - Google Patents

A kind of non-open cut Demolition Construction method of underground structure being drilled into Download PDF

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Publication number
CN107740596A
CN107740596A CN201711233286.8A CN201711233286A CN107740596A CN 107740596 A CN107740596 A CN 107740596A CN 201711233286 A CN201711233286 A CN 201711233286A CN 107740596 A CN107740596 A CN 107740596A
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CN
China
Prior art keywords
underground
crossed
drilled
construction
open cut
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CN201711233286.8A
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Chinese (zh)
Inventor
高波
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中建三局第建设工程有限责任公司
中建三局第一建设工程有限责任公司
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Priority to CN201711233286.8A priority Critical patent/CN107740596A/en
Publication of CN107740596A publication Critical patent/CN107740596A/en

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/08Wrecking of buildings

Abstract

The invention discloses a kind of non-open cut Demolition Construction method of underground structure being drilled into, comprise the following steps:Step 1: determine that underground structure is drilled into the position passed through;Step 2: to rock mass or grouting in soil mass:Step 3: subregion removes the position that underground structure is crossed and makes supporting construction:Extend Step 4: being crossed position from underground structure to both ends, reserve safe distance, close pouring template concrete in the underground structure outside safe distance, close the through section of the underground structure.Beneficial effects of the present invention are:Compared with the open cut mode of current generally use, reduce earth's surface and go along with sb. to guard him, traffic will not be caused to perplex, non-open cut Demolition Construction will not also produce noise dust etc.;Securely and reliably, before works is removed, to rock mass or grouting in soil mass, the self-stability of guarantee rock mass and the soil body;Supporting construction is made in time when removing part-structure, ensure that the safety of workmen;Fill concrete is protected after dismounting, effectively prevents underground structure from will not cave in.

Description

A kind of non-open cut Demolition Construction method of underground structure being drilled into
Technical field
The present invention relates to underground construction technology field, and in particular to a kind of underground structure crept into by shield machine or push-bench The non-open cut Demolition Construction method of thing.
Background technology
With society fast development, urban transportation and environment lifting demand it is more and more urgent, subway, pipe gallery, Rain sewage pipe the underground engineering quantity such as is promoted and increased sharply.Underground engineering is constructed using shield machine and push-bench more, due to China The hysteresis quality of urban planning, shield machine and push-bench inevitably run into culvert, Prefabricated Concrete pipe, steel conduit in work progress Etc. structure, due to shield and the limitation of jacking construction, original structure thing need to be removed and relocated.At present, it is common practice that after open cut Will original structure thing remove after backfill, but when many works that need to be removed are constructed at road bottom, dismounting during underground structure Between it is long, influence traffic and environment, and it is high to remove cost.
The content of the invention
It is an object of the present invention in view of the shortcomings of the prior art, there is provided a kind of safe and reliable by shield machine or push pipe The non-open cut method for dismounting of underground structure that machine drill enters.
The technical solution adopted by the present invention is:A kind of non-open cut Demolition Construction method of underground structure being drilled into, including Following steps:
Step 1: according to shield machine or the construction access road of push-bench, determine that underground structure is drilled into the position passed through;
Step 2: to rock mass or grouting in soil mass:The rock mass of position lateral surface or native internal injection are crossed to underground structure, is filled out The gap that underground structure is crossed position lateral surface rock mass is filled, Grouting Pipe is pulled out after the completion of slip casting;
Step 3: subregion removes the position that underground structure is crossed and makes supporting construction:Underground structure is cut to be worn Position more, cuts off the structure reinforcing bars at the position, and makes supporting construction supporting and cut face;
Extend Step 4: being crossed position from underground structure to both ends, reserve safe distance, the underground knot outside safe distance Pouring template concrete is closed in structure thing, closes the through section of the underground structure.
By such scheme, in step 2, range of grouting can be drilled into position surrounding from underground structure and stretch out 1 ~ 3 Rice.
By such scheme, in step 3, slitting, piecemeal, piecewise cut the position that underground structure is crossed.
By such scheme, in step 3, using clay brick or low grade concrete prefabricated member etc. can stress immediately material system Make supporting construction.
By such scheme, supporting construction is made using the mortar auxiliary of increase accelerator.
By such scheme, the both ends fill concrete of part is crossed in underground structure.
By such scheme, in step 3, the structure reinforcing bars that underground structure is crossed position are cut off using oxygen-acetylene.
By such scheme, in step 3, the gap that gunite concrete filling cuts face carries out Seal treatment.
Beneficial effects of the present invention are:
(1)Demolition Construction method of the present invention reduces earth's surface and gone along with sb. to guard him, or even be not required to compared with currently used open cut mode Want earth's surface to go along with sb. to guard him, traffic will not be caused to perplex, non-open cut Demolition Construction will not also produce noise, dust etc. in addition;
(2)Demolition Construction method safety of the present invention is reliable, before works is removed, to rock mass or grouting in soil mass, ensures rock mass With the self-stability of the soil body;Supporting construction is made in time when removing part-structure, ensure that the safety of workmen;After dismounting Fill concrete is protected, and effectively prevents underground structure from will not cave in;
(3)Demolition Construction method of the present invention is simple, and feasibility is high, and the construction period is short, and construction cost is low.
Brief description of the drawings
Fig. 1 is the schematic diagram that shield machine creeps into the middle part of culvert in embodiment one.
Fig. 2 is that the side being drilled into embodiment one to culvert carries out the schematic diagram of injecting treatment.
Fig. 3 is that the side being drilled into embodiment one to culvert carries out the schematic diagram of supporting processing.
Fig. 4 is the schematic diagram that shield machine creeps into culvert top in embodiment two.
Fig. 5 is to be drilled into the schematic diagram contained body and carry out injecting treatment in embodiment two to culvert.
Fig. 6 is to be drilled into the schematic diagram contained body and carry out supporting processing in embodiment two to culvert.
Fig. 7 is the schematic diagram that shield machine creeps into culvert bottom in embodiment three.
Fig. 8 is the schematic diagram of the top and bottom that shield machine runs through culvert in example IV.
Wherein:1st, culvert;2nd, it is crossed culvert body;3rd, injected hole;4th, supporting construction.
Embodiment
For a better understanding of the present invention, the present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
A kind of non-open cut Demolition Construction method of underground structure being drilled into, comprises the following steps:
Step 1: according to shield machine or the construction access road of push-bench, the position that underground structure is passed through by shield machine drilling is determined;
Step 2: to rock mass or grouting in soil mass:The grouting pipe grown using 50cm, position lateral surface is crossed to underground structure Rock mass or native internal injection, filling underground structure be crossed the gap of position lateral surface rock mass, ensure the stability of rock mass; The slip casting of injected hole 3 is suitably set up between Grouting Pipe, Grouting Pipe is pulled out after the completion of slip casting;
Step 3: the position that underground structure is crossed is removed in subregion, and make supporting construction 4:Slitting, piecemeal, piecewise The position that underground structure is crossed is cut, the structure reinforcing bars for being crossed position are cut off using oxygen-acetylene, then build clay brick by laying bricks or stones Or low grade concrete prefabricated member etc. can stress immediately material to make supporting construction 4, supporting cuts face, and in the gap for cutting face Interior gunite concrete Seal treatment;
Extend Step 4: being crossed position from underground structure to both ends, reserve safe distance(The safe distance is according to push-bench Or the diameter value of shield machine), pouring template concrete is closed in the underground structure in safe distance, closes this section of underground knot Structure thing.
In step 2, range of grouting can suitably expand, and it is circumferential that range of grouting can be drilled into position four from underground structure Outer 1 ~ 3 meter of extension.
In step 3, it is contemplated that construction error, can suitably amplify the face of cutting, actually cut the position that face should be crossed certainly Surrounding stretches out about 30cm;When building clay brick or low grade concrete prefabricated member making supporting construction 4 by laying bricks or stones, mortar used can increase speed Solidifying agent, makes supporting construction 4 quickly solidify stress.
In step 3, it is contemplated that the influence that shield machine or push-bench are constructed to underground structure periphery, to ensure to creep into Safety, the both ends that part is crossed in underground structure backfill certain thickness concrete.
Preferably, if underground structure is crossed the both ends of part in 200m distance without gateway, transport of materials and When personnel's disengaging is difficult, can suit measures to local conditions to be selected in influences the underground structure that small position drilling connection need to be cut, as material Personnel channel.
Below so that shield machine passes through culvert as an example, the present invention will be described.
Embodiment one:As shown in figure 1, shield machine passes through from the middle part of culvert 1 drilling, 1 two sides of culvert are by shield machine Its specific method for dismounting of the position passed through is as follows:
Step 1: according to the drilling route of shield machine, the particular location that the two sides of culvert 1 are crossed is determined, namely be crossed culvert The position of body;
Step 2: to rock mass or grouting in soil mass
In side rock internal injection:To grouting and reinforcing in the rock mass or the soil body for containing the lateral surface of body 2 is crossed, rock mass or the soil body are filled Interior gap, ensure that being crossed the rock mass for containing the lateral surface of body 2 or the soil body has certain self-stability;Missed in view of practice of construction Difference, suitably expands range of grouting, and range of grouting stretches out 1 ~ 3 meter from the culvert surrounding of body 2 is crossed;Grouting Pipe is 0.5 meter or so The steel pipe of length, is pulled out in time after slip casting, as shown in Figure 2;
Step 3: subregion removes the position that culvert 1 is crossed and makes supporting construction 4
Side is crossed the dismounting for containing body 2:Manually cut by swelling agent and with the slittings such as pneumatic pick, piecemeal, piecewise and be crossed Contain body 2, cut off the structure reinforcing bars for being crossed and containing body 2, then can stress immediately with clay brick or the prefabricated solid brick of low grade concrete etc. Material makes supporting construction 4 and resists resistance to stress(The supporting construction 4 is a slope, as shown in Figure 3), supporting cuts face, and is digging Except gunite concrete backfill is closely knit in the gap in face;Cut successively by said process and be crossed culvert body on 1 two sides of culvert 2;
Step 4: considering the influence of shield machine construction, the both ends of culvert body 2 are being crossed(Along along the length direction of culvert 1)Reserved peace Full distance(The value of the safe distance can be the diameter value of shield machine or push-bench), the interior pass mould of culvert 1 in safe distance Plate pours into a mould low-grade concrete, closes the inner space of culvert 1 in safe distance.
Embodiment two:As shown in figure 4, shield machine passes through from the top of culvert 1, shield machine passes through two sides of culvert 1 And top surface, the specific method for dismounting that 1 two sides of culvert and top surface are crossed position are as follows:
Step 1: according to the drilling route of shield machine, the two sides of culvert 1 and the particular location that top surface is crossed are determined, namely by Pass through the position for containing body 2;
Step 2: to rock mass or grouting in soil mass(As shown in Figure 5)
Rock mass or native internal injection in side:It is crossed from side and contains body 2 to 1 ~ 3 meter of surrounding extension, on the outside of the expanded range Rock mass and be crossed the rock internal injection for containing the outside of body 2;
In top rock mass or native internal injection:It is crossed from top and contains body 2 to surrounding 1 ~ 3m of extension, on the outside of the expanded range Rock mass and the rock internal injection for containing the outside of body 2 is crossed, and the rock mass to stretch out to shield machine working region in the range of 1 ~ 3m Slip casting, grouting parameter are identical with the grouting parameter described in the step 1 of embodiment one;
Step 3: subregion, which removes to be crossed, contains body 2(As shown in Figure 6)
(1)The side of culvert 1 is crossed the dismounting for containing body 2:Method for dismounting is identical with the step 3 of embodiment one;
(2)The top surface of culvert 1 is crossed the dismounting for containing body 2:Dug by swelling agent and manually with the slittings such as pneumatic pick, piecemeal, piecewise Contain body 2 except being crossed, cut off the structure reinforcing bars for being crossed and containing body 2, and cut section bottom brick certainly(Common brick or low mark can be used Number concrete block)Build the working region to shield machine or push-bench by laying bricks or stones;The gap that can not be manually filled up to top and side, spray coagulation Earthen backfill is closely knit, to ensure effective transmission of stress;
The culvert 1 for often cutting 20-30cm width just makes supporting construction 4, to ensure that the soil body can be from surely;Circular order is dug successively Except the culvert segment structure that shield machine or push-bench influence, and backfilled with brick, gunite concrete backfill is closely knit;
Step 4: considering the influence of shield machine construction, the both ends of culvert body 2 are being crossed(Along along the length direction of culvert 1)Reserved peace Full distance(The value of the safe distance can be the diameter value of shield machine or push-bench), the interior pass mould of culvert 1 in safe distance Plate pours into a mould low-grade concrete, closes the inner space of culvert 1 in safe distance.
Embodiment three:As shown in fig. 7, shield machine passes through from the bottom of culvert 1,1 two sides of culvert and bottom surface are crossed The specific method for dismounting of culvert body it is as follows:
Step 1: according to the drilling route of shield machine, the particular location that the two sides of culvert 1 and bottom surface are crossed is determined(Namely by Pass through the particular location for containing body 2);
Step 2: to rock mass or grouting in soil mass
Rock mass or native internal injection in side:It is crossed from side and contains body to 1 ~ 3 meter of surrounding extension, on the outside of the expanded range Rock mass and the rock internal injection being crossed on the outside of culvert body;
Step 3: subregion dismounting is crossed culvert body and makes supporting construction 4
(1)Culvert side is crossed the dismounting for containing body:Method for dismounting is identical with the step 3 of embodiment one;
(2)Culvert bottom surface is crossed the dismounting for containing body:Culvert polycrystalline substance is directly cut using swelling agent or pneumatic pick etc., and cut off The structure reinforcing bars for the culvert body 2 that bottom surface is crossed;
Step 4: considering the influence of shield machine construction, the both ends of culvert body 2 are being crossed(Along along the length direction of culvert 1)Reserved peace Full distance(The value of the safe distance can be the diameter value of shield machine or push-bench), the interior pass mould of culvert 1 in safe distance Plate pours into a mould low-grade concrete, closes the inner space of culvert 1 in safe distance.
Example IV:As shown in figure 8, shield machine runs through the top and bottom of culvert 1,1 two sides of culvert, top surface and bottom The specific method for dismounting that face is crossed position is as follows:
Step 1: according to the drilling route of shield machine, the particular location that the two sides of culvert 1, top surface and bottom surface are crossed is determined( It is crossed and contains body 2)Particular location;
Step 2: to rock mass or grouting in soil mass
Rock mass or native internal injection in side:It is crossed from side and contains body to 1 ~ 3 meter of surrounding extension, on the outside of the expanded range Rock mass and the rock internal injection being crossed on the outside of culvert body
In top rock mass or native internal injection:Stretch out the grouting in rock mass in the range of 1 ~ 3m to shield machine working region,
Grouting parameter is identical with the grouting parameter described in the step 1 of embodiment one;
Step 3: subregion dismounting is crossed culvert body and makes supporting construction 4
Side is crossed the dismounting for containing body:Method for dismounting and the step 3 of embodiment one(1)It is described identical;
Top surface is crossed the dismounting for containing body:Method for dismounting and the step 3 of embodiment two(2)It is described identical;
Bottom surface is crossed the dismounting for containing body:Method for dismounting and the step 3 of embodiment three(2)It is described identical;
Step 4: considering the influence of shield machine construction, the both ends of culvert body 2 are being crossed(Along along the length direction of culvert 1)Reserved peace Full distance(The value of the safe distance can be the diameter value of shield machine or push-bench), the interior pass mould of culvert 1 in safe distance Plate pours into a mould low-grade concrete, closes the inner space of culvert 1 in safe distance.
Finally it should be noted that these are only the preferred embodiments of the present invention, it is not intended to limit the invention, although The present invention is described in detail with reference to embodiment, for those skilled in the art, it still can be to foregoing Technical scheme described in each embodiment is modified, or to which part technical characteristic carry out equivalent substitution, but it is all Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., the protection of the present invention should be included in Within the scope of.

Claims (8)

  1. A kind of 1. non-open cut Demolition Construction method of underground structure being drilled into, it is characterised in that comprise the following steps:
    Step 1: according to shield machine or the construction access road of push-bench, determine that underground structure is drilled into the position passed through;
    Step 2: to rock mass or grouting in soil mass:The rock mass of position lateral surface or native internal injection are crossed to underground structure, is filled out The gap that underground structure is crossed position lateral surface rock mass is filled, Grouting Pipe is pulled out after the completion of slip casting;
    Step 3: subregion removes the position that underground structure is crossed and makes supporting construction:Underground structure is cut to be worn Position more, cuts off the structure reinforcing bars at the position, and makes supporting construction supporting and cut face;
    Extend Step 4: being crossed position from underground structure to both ends, reserve safe distance, the underground knot outside safe distance Pouring template concrete is closed in structure thing, closes the through section of the underground structure.
  2. 2. the non-open cut Demolition Construction method of the underground structure being drilled into as claimed in claim 1, it is characterised in that in step In two, range of grouting can be drilled into position surrounding from underground structure and stretch out 1 ~ 3 meter.
  3. 3. the non-open cut Demolition Construction method of the underground structure being drilled into as claimed in claim 1, it is characterised in that in step In three, slitting, piecemeal, piecewise cut the position that underground structure is crossed.
  4. 4. the non-open cut Demolition Construction method of the underground structure being drilled into as claimed in claim 1, it is characterised in that in step In three, using clay brick or low grade concrete prefabricated member etc. can immediately stress material make supporting construction.
  5. 5. the non-open cut Demolition Construction method of the underground structure being drilled into as claimed in claim 4, it is characterised in that using increasing The mortar of accelerator is added to aid in making supporting construction.
  6. 6. the non-open cut Demolition Construction method of the underground structure being drilled into as claimed in claim 1, it is characterised in that in underground Works is crossed the both ends fill concrete of part.
  7. 7. the non-open cut Demolition Construction method of the underground structure being drilled into as claimed in claim 1, it is characterised in that in step In three, the structure reinforcing bars that underground structure is crossed position are cut off using oxygen-acetylene.
  8. 8. the non-open cut Demolition Construction method of the underground structure being drilled into as claimed in claim 1, it is characterised in that in step In three, the gap that gunite concrete filling cuts face carries out Seal treatment.
CN201711233286.8A 2017-11-30 2017-11-30 A kind of non-open cut Demolition Construction method of underground structure being drilled into CN107740596A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110388213A (en) * 2018-04-17 2019-10-29 中国石油天然气集团有限公司 Sealing device for the vertical jacking construction of piping lane
CN110439319A (en) * 2019-08-22 2019-11-12 哈尔滨工业大学 It is a kind of high level concrete building structures inversely remove with anti-collapse method

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Publication number Priority date Publication date Assignee Title
CN110388213A (en) * 2018-04-17 2019-10-29 中国石油天然气集团有限公司 Sealing device for the vertical jacking construction of piping lane
CN110439319A (en) * 2019-08-22 2019-11-12 哈尔滨工业大学 It is a kind of high level concrete building structures inversely remove with anti-collapse method

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