CN106906829A - A kind of horizontal soil body reinforcement means of subway open-cut foundation ditch - Google Patents
A kind of horizontal soil body reinforcement means of subway open-cut foundation ditch Download PDFInfo
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- CN106906829A CN106906829A CN201710215772.0A CN201710215772A CN106906829A CN 106906829 A CN106906829 A CN 106906829A CN 201710215772 A CN201710215772 A CN 201710215772A CN 106906829 A CN106906829 A CN 106906829A
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- foundation ditch
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/08—Restraining of underground water by employing open ditches arranged below the level of the water
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Foundations (AREA)
Abstract
The invention discloses a kind of horizontal soil body reinforcement means of subway open-cut foundation ditch, a kind of horizontal soil body reinforcement means of subway open-cut foundation ditch is comprised the following steps that：S1：The construction of pumping equipment, S2：Remove open-cut foundation ditch bottom barrier, S3：Compacting foundation ditch basis, S4：The mapping of foundation ditch width and depth, S5：Reinforced steel is got the raw materials ready, S6：Pouring reinforcement concrete, S7：The reinforced concrete surface being molded in the step S6 is surveyed and drawn again, S8：The construction of pile, S9：The construction of superstructure, the present invention carries out the construction of pumping equipment first, prevents ponding excessive, ensure unobstructed in foundation ditch, difficulty of construction is reduced, using high pressure jet grouting, high working efficiency, and the bubble remained in concrete is timely removed by vibrating head, improve concrete pouring quality, it is ensured that the reinforcing of foundation ditch, in the mapping of foundation ditch width and depth, minimum to carry out 3 mappings, final value is 3 average values of mapping, it is ensured that the degree of accuracy of mapped results.
Description
Technical field
The present invention relates to engineering construction technical field, specially a kind of horizontal soil body reinforcement means of subway open-cut foundation ditch.
Background technology
The arrival in subway epoch, let us is full of free thought to following trip and life, and subway is not singly a kind of traffic work
Tool, or a kind of civilization, a kind of life style.The road that subway let us is gone home is more happy, and let us has the more time to enjoy from this
Lived, the improved and complete circle that subway builds is more comfortable by the life of let us.Subway is the form along ground rail system
Progressively develop a kind of quick large conveying quantity urban track traffic pattern of use electric propulsion of formation, its circuit is generally laid in underground
In tunnel, have beyond down town, go to system of laying on ground or overpass from underground.Holed not in underground
It is a nothing the matter, and needs extremely large amount of money and time, at least also to want several years to complete.Open cut backfill is most simple
Single directly method is bright cut and fill（Open cut is backfilled）.This method is usually that hollow place is excavated on street, then is built below
Just road surface is spread again after there are enough supporting forces in tunnel structure, tunnel.Except road is dug out, other underground structures such as electricity
Line, telephone wire, water pipe etc. are required for reconfiguring.Build the material usually concrete or steel in this tunnel, but older system
Also have and use fragment of brick and iron.
The horizontal soil stabilization of subway open-cut foundation ditch is the problem that subway construction must be solved, and the quality of strengthening quality is directly determined
The quality of subway is determined, in the prior art, the horizontal soil body reinforcement means difficulty of subway open-cut foundation ditch is big, high cost, it is difficult to full
The demand of foot production.
The content of the invention
It is an object of the invention to provide a kind of horizontal soil body reinforcement means of subway open-cut foundation ditch, to solve above-mentioned background skill
The problem proposed in art.
To achieve the above object, the present invention provides following technical scheme：A kind of horizontal soil stabilization side of subway open-cut foundation ditch
Method, the production technology of the peanut oil is comprised the following steps that：
S1：The construction of pumping equipment, excavation of foundation pit scope is mainly rainwater and residential quarter without obvious aquifer water-bearing stratum, foundation ditch internal water accumulation
Interior domestic water and engineering water are built up and are formed, therefore, station in excavation of foundation pit draining based on bright draining, in capping beam
Pit edge sets the interim intercepting ditch of 0.4 × 0.5m, after its current is introduced into plash, sedimentation basin is drained into by electric pump,
After the completion of every section of excavation of foundation pit, i.e., the catch pit of 1.0 × 1.0 × 1.5m is set at the outer 1.5m of the section, by engineering water in foundation ditch,
Underground water, immersion etc. introduce catch pit, then are taken away ponding with electric pump；
S2：Open-cut foundation ditch bottom barrier is removed, using excavating machinery, the barrier of bottom of foundation ditch is removed totally, under being easy to
A one-step process is constructed；
S3：Compacting foundation ditch basis, using ballast consolidating machine, the ground to bottom of foundation ditch carries out compacting treatment, makes foundation ditch basis smooth,
Ensure that the flatness on foundation ditch basis is no more than 30mm；
S4：The mapping of foundation ditch width and depth, is surveyed and drawn, accurately by instrument of surveying and mapping to the foundation ditch basis in the step S3
Measure foundation ditch basis length and width, at least carry out 3 times mapping, final value be 3 times mapping average values, it is ensured that survey
The degree of accuracy of result is painted, makes measurement error no more than 3/1000ths of overall measurement length；
S5：Reinforced steel is got the raw materials ready, and selection diameter specifications are reinforced steel for the grade III steel of 12mm, according to obtained by mapping in S4
Foundation ditch width determines transverse steel length, and workmen carries out grid cage making at the scene, the number of plies of grid is no less than 3
Layer, the height of grid cage is not less than 0.8m, is equidistantly distributed between grid layer；
S6：Pouring reinforcement concrete, the grid cage to being made in the step S5 carries out pouring reinforcement concrete, using high pressure
Jet groutinl, high working efficiency, and the bubble remained in concrete is timely removed by vibrating head, it is ensured that concreting matter
Amount, after pouring end, inserts mark warning sign, and quiescing personnel construction at least 36 hours is reminded in warning, it is ensured that armored concrete
Forming Quality；
S7：The reinforced concrete surface being molded in the step S6 is surveyed and drawn again, determines campshed preparatively according to foundation ditch width
Point, and mark is carried out, horizontal campshed number is at least at 3, horizontal campshed point is equidistantly distributed, between horizontal campshed point
Ultimate range is no more than 5m, it is many to campshed point determine that crowd is equidistantly distributed to campshed point, crowd is to row according to subway total length
Ultimate range between stake point is no more than 25m；
S8：The construction of pile, pile is carried out according to the horizontal campshed point and crowd that determine in the step S7 to the position of campshed point
Construction, pile is designed as cylinder, the intended diameter of pile is 1m, and the design height of pile is 1.5m, it is ensured that pile
Diameter error no more than 3/1000ths of pile intended diameter, the height error of pile no more than pile design height thousand/
Two, by high pressure jet grouting, high working efficiency, and the bubble remained in concrete is timely removed by vibrating head, it is ensured that
Concrete pouring quality, after pouring end, inserts mark warning sign, and warning is reminded quiescing personnel construction at least 36 hours, protected
Card armored concrete Forming Quality；
S9：The construction of superstructure, superstructure is built at the top of the step S8 pile posts, and selection diameter specifications are 12mm
Grade III steel be reinforced steel, workmen carries out grid cage making at the scene, makes the number of plies of grid no less than 3 layers, grid cage
Height be not less than 0.8m, equidistantly distributed between grid layer, by high pressure jet grouting, and timely removed by vibrating head
The bubble of residual in concrete, it is ensured that concrete pouring quality, after pouring end, inserts mark warning sign, and warning prompting at least 36 is small
When interior quiescing personnel construction, it is ensured that armored concrete Forming Quality.
Preferably, the armored concrete upper surface after being molded in the step S6 carries out the construction of Waterproof structural course.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention carries out the construction of pumping equipment first, by foundation ditch
Interior engineering water, underground water, immersion etc. introduce catch pit, then are taken away ponding with electric pump, prevent ponding excessive, cause
It is muddy in foundation ditch, it is ensured that unobstructed in foundation ditch, difficulty of construction is reduced, using high pressure jet grouting, high working efficiency, and by shaking
Dynamic rod timely removes the bubble remained in concrete, concrete pouring quality is improved, it is ensured that the reinforcing of foundation ditch, in foundation ditch width
And in the mapping of depth, at least carry out 3 times mapping, final value be 3 times mapping average values, it is ensured that mapped results it is accurate
Degree, reduces production cost, it is ensured that strengthening quality.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Embodiment 1
A kind of horizontal soil body reinforcement means of subway open-cut foundation ditch, the horizontal soil body reinforcement means specific steps of the subway open-cut foundation ditch are such as
Under：
S1：The construction of pumping equipment, excavation of foundation pit scope is mainly rainwater and residential quarter without obvious aquifer water-bearing stratum, foundation ditch internal water accumulation
Interior domestic water and engineering water are built up and are formed, therefore, station in excavation of foundation pit draining based on bright draining, in capping beam
Pit edge sets the interim intercepting ditch of 0.4 × 0.5m, after its current is introduced into plash, sedimentation basin is drained into by electric pump,
After the completion of every section of excavation of foundation pit, i.e., the catch pit of 1.0 × 1.0 × 1.5m is set at the outer 1.5m of the section, by engineering water in foundation ditch,
Underground water, immersion etc. introduce catch pit, then are taken away ponding with electric pump；
S2：Open-cut foundation ditch bottom barrier is removed, using excavating machinery, the barrier of bottom of foundation ditch is removed totally, under being easy to
A one-step process is constructed；
S3：Compacting foundation ditch basis, using ballast consolidating machine, the ground to bottom of foundation ditch carries out compacting treatment, makes foundation ditch basis smooth,
Ensure that the flatness on foundation ditch basis is no more than 30mm；
S4：The mapping of foundation ditch width and depth, is surveyed and drawn, accurately by instrument of surveying and mapping to the foundation ditch basis in the step S3
Measure foundation ditch basis length and width, at least carry out 3 times mapping, final value be 3 times mapping average values, it is ensured that survey
The degree of accuracy of result is painted, makes measurement error no more than 3/1000ths of overall measurement length；
S5：Reinforced steel is got the raw materials ready, and selection diameter specifications are reinforced steel for the grade III steel of 12mm, according to obtained by mapping in S4
Foundation ditch width determines transverse steel length, and workmen carries out grid cage making at the scene, the number of plies of grid is no less than 3
Layer, the height of grid cage is not less than 0.8m, is equidistantly distributed between grid layer；
S6：Pouring reinforcement concrete, the grid cage to being made in the step S5 carries out pouring reinforcement concrete, using high pressure
Jet groutinl, high working efficiency, and the bubble remained in concrete is timely removed by vibrating head, it is ensured that concreting matter
Amount, after pouring end, inserts mark warning sign, and quiescing personnel construction at least 36 hours is reminded in warning, it is ensured that armored concrete
Forming Quality；
S7：The reinforced concrete surface being molded in the step S6 is surveyed and drawn again, determines campshed preparatively according to foundation ditch width
Point, and mark is carried out, horizontal campshed number is at least at 3, horizontal campshed point is equidistantly distributed, between horizontal campshed point
Ultimate range is no more than 5m, it is many to campshed point determine that crowd is equidistantly distributed to campshed point, crowd is to row according to subway total length
Ultimate range between stake point is no more than 25m；
S8：The construction of pile, pile is carried out according to the horizontal campshed point and crowd that determine in the step S7 to the position of campshed point
Construction, pile is designed as cylinder, the intended diameter of pile is 1m, and the design height of pile is 1.5m, it is ensured that pile
Diameter error no more than 3/1000ths of pile intended diameter, the height error of pile no more than pile design height thousand/
Two, by high pressure jet grouting, high working efficiency, and the bubble remained in concrete is timely removed by vibrating head, it is ensured that
Concrete pouring quality, after pouring end, inserts mark warning sign, and warning is reminded quiescing personnel construction at least 36 hours, protected
Card armored concrete Forming Quality；
S9：The construction of superstructure, superstructure is built at the top of the step S8 pile posts, and selection diameter specifications are 12mm
Grade III steel be reinforced steel, workmen carries out grid cage making at the scene, makes the number of plies of grid no less than 3 layers, grid cage
Height be not less than 0.8m, equidistantly distributed between grid layer, by high pressure jet grouting, and timely removed by vibrating head
The bubble of residual in concrete, it is ensured that concrete pouring quality, after pouring end, inserts mark warning sign, and warning prompting at least 36 is small
When interior quiescing personnel construction, it is ensured that armored concrete Forming Quality.
Further, the armored concrete upper surface after being molded in the step S6 carries out the construction of Waterproof structural course.
The present invention carries out the construction of pumping equipment first, engineering water, underground water, immersion etc. in foundation ditch is introduced and is catchmented
Hole, then taken away ponding with electric pump, prevent ponding excessive, cause muddy in foundation ditch, it is ensured that unobstructed in foundation ditch, reduce
Difficulty of construction, using high pressure jet grouting, high working efficiency, and timely removes the gas remained in concrete by vibrating head
Bubble, improves concrete pouring quality, it is ensured that the reinforcing of foundation ditch, in the mapping of foundation ditch width and depth, at least carries out 3 surveys
Paint, final value is 3 average values of mapping, it is ensured that the degree of accuracy of mapped results, reduces production cost, it is ensured that strengthening quality.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (2)
1. the horizontal soil body reinforcement means of a kind of subway open-cut foundation ditch, it is characterised in that：The horizontal soil stabilization side of subway open-cut foundation ditch
Method is comprised the following steps that：
S1：The construction of pumping equipment, excavation of foundation pit scope is mainly rainwater and residential quarter without obvious aquifer water-bearing stratum, foundation ditch internal water accumulation
Interior domestic water and engineering water are built up and are formed, therefore, station in excavation of foundation pit draining based on bright draining, in capping beam
Pit edge sets the interim intercepting ditch of 0.4 × 0.5m, after its current is introduced into plash, sedimentation basin is drained into by electric pump,
After the completion of every section of excavation of foundation pit, i.e., the catch pit of 1.0 × 1.0 × 1.5m is set at the outer 1.5m of the section, by engineering water in foundation ditch,
Underground water, immersion etc. introduce catch pit, then are taken away ponding with electric pump；
S2：Open-cut foundation ditch bottom barrier is removed, using excavating machinery, the barrier of bottom of foundation ditch is removed totally, under being easy to
A one-step process is constructed；
S3：Compacting foundation ditch basis, using ballast consolidating machine, the ground to bottom of foundation ditch carries out compacting treatment, makes foundation ditch basis smooth,
Ensure that the flatness on foundation ditch basis is no more than 30mm；
S4：The mapping of foundation ditch width and depth, is surveyed and drawn, accurately by instrument of surveying and mapping to the foundation ditch basis in the step S3
Measure foundation ditch basis length and width, at least carry out 3 times mapping, final value be 3 times mapping average values, it is ensured that survey
The degree of accuracy of result is painted, makes measurement error no more than 3/1000ths of overall measurement length；
S5：Reinforced steel is got the raw materials ready, and selection diameter specifications are reinforced steel for the grade III steel of 12mm, according to obtained by mapping in S4
Foundation ditch width determines transverse steel length, and workmen carries out grid cage making at the scene, the number of plies of grid is no less than 3
Layer, the height of grid cage is not less than 0.8m, is equidistantly distributed between grid layer；
S6：Pouring reinforcement concrete, the grid cage to being made in the step S5 carries out pouring reinforcement concrete, using high pressure
Jet groutinl, high working efficiency, and the bubble remained in concrete is timely removed by vibrating head, it is ensured that concreting matter
Amount, after pouring end, inserts mark warning sign, and quiescing personnel construction at least 36 hours is reminded in warning, it is ensured that armored concrete
Forming Quality；
S7：The reinforced concrete surface being molded in the step S6 is surveyed and drawn again, determines campshed preparatively according to foundation ditch width
Point, and mark is carried out, horizontal campshed number is at least at 3, horizontal campshed point is equidistantly distributed, between horizontal campshed point
Ultimate range is no more than 5m, it is many to campshed point determine that crowd is equidistantly distributed to campshed point, crowd is to row according to subway total length
Ultimate range between stake point is no more than 25m；
S8：The construction of pile, pile is carried out according to the horizontal campshed point and crowd that determine in the step S7 to the position of campshed point
Construction, pile is designed as cylinder, the intended diameter of pile is 1m, and the design height of pile is 1.5m, it is ensured that pile
Diameter error no more than 3/1000ths of pile intended diameter, the height error of pile no more than pile design height thousand/
Two, by high pressure jet grouting, high working efficiency, and the bubble remained in concrete is timely removed by vibrating head, it is ensured that
Concrete pouring quality, after pouring end, inserts mark warning sign, and warning is reminded quiescing personnel construction at least 36 hours, protected
Card armored concrete Forming Quality；
S9：The construction of superstructure, superstructure is built at the top of the step S8 pile posts, and selection diameter specifications are 12mm
Grade III steel be reinforced steel, workmen carries out grid cage making at the scene, makes the number of plies of grid no less than 3 layers, grid cage
Height be not less than 0.8m, equidistantly distributed between grid layer, by high pressure jet grouting, and timely removed by vibrating head
The bubble of residual in concrete, it is ensured that concrete pouring quality, after pouring end, inserts mark warning sign, and warning prompting at least 36 is small
When interior quiescing personnel construction, it is ensured that armored concrete Forming Quality.
2. the horizontal soil body reinforcement means of a kind of subway open-cut foundation ditch according to claim 1, it is characterised in that：In the step
Armored concrete upper surface after being molded in rapid S6 carries out the construction of Waterproof structural course.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710215772.0A CN106906829A (en) | 2017-04-04 | 2017-04-04 | A kind of horizontal soil body reinforcement means of subway open-cut foundation ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710215772.0A CN106906829A (en) | 2017-04-04 | 2017-04-04 | A kind of horizontal soil body reinforcement means of subway open-cut foundation ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106906829A true CN106906829A (en) | 2017-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710215772.0A Pending CN106906829A (en) | 2017-04-04 | 2017-04-04 | A kind of horizontal soil body reinforcement means of subway open-cut foundation ditch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894187A (en) * | 2018-08-15 | 2018-11-27 | 温仕鑫 | A kind of hydraulic engineering waterproof construction method |
| CN117107777A (en) * | 2023-10-13 | 2023-11-24 | 中国铁路设计集团有限公司 | Method for constructing underground excavation subway section from open excavation slope foundation pit |
-
2017
- 2017-04-04 CN CN201710215772.0A patent/CN106906829A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894187A (en) * | 2018-08-15 | 2018-11-27 | 温仕鑫 | A kind of hydraulic engineering waterproof construction method |
| CN117107777A (en) * | 2023-10-13 | 2023-11-24 | 中国铁路设计集团有限公司 | Method for constructing underground excavation subway section from open excavation slope foundation pit |
| CN117107777B (en) * | 2023-10-13 | 2024-04-05 | 中国铁路设计集团有限公司 | Method for constructing underground excavation subway section from open excavation slope foundation pit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170630 |
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| WD01 | Invention patent application deemed withdrawn after publication |