CN111255490B - Device for preventing soil body on upper part of pipe curtain structure from settling and construction method thereof - Google Patents
Device for preventing soil body on upper part of pipe curtain structure from settling and construction method thereof Download PDFInfo
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- CN111255490B CN111255490B CN202010041209.8A CN202010041209A CN111255490B CN 111255490 B CN111255490 B CN 111255490B CN 202010041209 A CN202010041209 A CN 202010041209A CN 111255490 B CN111255490 B CN 111255490B
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- pipe curtain
- curtain structure
- cross beam
- soil
- jacking
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- 239000002689 soil Substances 0.000 title claims abstract description 78
- 238000010276 construction Methods 0.000 title abstract description 18
- 238000000034 method Methods 0.000 claims description 15
- 238000009412 basement excavation Methods 0.000 claims description 5
- 238000004904 shortening Methods 0.000 claims description 5
- 238000005056 compaction Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/10—Details of mine caps for engaging the tops of pit-props, with or without retaining-plates; Retaining-plates
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0056—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with individual advancing shifting devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Foundations (AREA)
Abstract
The invention relates to a device for preventing the upper soil body of a pipe curtain structure from settling, wherein part of un-excavated soil is reserved in the pipe curtain structure, a bottom cross beam is paved on the soil, a top cross beam is erected at the top of the pipe curtain structure, and the device comprises: a frame body for placement between the bottom cross member and the top cross member; and the jacking part is vertically arranged on the frame body and has adjustable length, and the two ends of the jacking part are respectively propped against the bottom cross beam and the top cross beam by adjusting the length of the jacking part, so that the bottom cross beam is pushed to compact soil downwards and support the pipe curtain structure and soil on the upper part of the pipe curtain structure. The invention effectively solves the problem of serious ground settlement, supports the pipe curtain structure by using the device, prevents the pipe curtain structure from deforming, ensures the construction quality, and has wide application range.
Description
Technical Field
The invention relates to the field of building construction, in particular to a device for preventing the settlement of soil on the upper part of a pipe curtain structure.
Background
With the increasing scale of underground space development and utilization, if a common open cut method is adopted in a central urban area with dense personnel, heavy traffic and complex environment, multiple times of traffic and pipeline turnover are needed in the construction process, the construction planning is complex, the construction period is long, and the influence on the normal operation of the city is inevitable.
Therefore, the underground excavation method represented by the pipe curtain method is widely used in the field of underground engineering because of small influence on normal operation of a city, low cost and high efficiency, and the pipe curtain method is generally characterized in that steel pipes are arranged around an underground structure to be formed, an underground space with strong sealing performance is formed by combining lock catches, grouting, artificial freezing and other water stopping modes between the pipes, and then soil bodies in the space are excavated under the support of the pipe curtain.
However, in the actual construction process, the cross section of the pipe curtain structure is large, the soil in the construction area is saturated soft soil, the soil sensitivity is high, the water content is large, the self-stability capability is weak, and the like, and the soil is soft and easy to settle, so that the pipe curtain structure deforms, the soil above the pipe curtain structure deforms, and the problem of serious ground settlement is caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides the device for preventing the soil body on the upper part of the pipe curtain structure from settling, solves the problem of serious ground settlement, supports the pipe curtain structure by using the device, prevents the pipe curtain structure from deforming, ensures the construction quality, and has wide application range.
The technical scheme for realizing the purpose is as follows:
the invention provides a device for preventing the settlement of soil body on the upper part of a pipe curtain structure, wherein part of un-excavated soil is reserved in the pipe curtain structure, a bottom cross beam is paved on the soil, a top cross beam is erected at the top of the pipe curtain structure, and the device comprises:
a frame body for placement between the bottom cross member and the top cross member; and
the jacking piece is vertically arranged on the frame body and adjustable in length, and the two ends of the jacking piece are respectively abutted against the bottom cross beam and the top cross beam by adjusting the length of the jacking piece, so that the bottom cross beam is pushed to compact soil downwards and support the pipe curtain structure and the soil body on the upper portion of the pipe curtain structure.
The device for preventing the soil body on the upper part of the pipe curtain structure from settling is adopted, the frame body is arranged on the bottom cross beam, the length of the jacking piece is adjusted, so that two ends of the jacking piece are respectively abutted against the bottom cross beam and the top cross beam, the bottom cross beam pushes earth downwards in the jacking process of the jacking piece so that the earth is pressed and compacted, the bottom cross beam is located on the compacted earth, the soil cannot be settled due to the deformation of the earth, and the top of the jacking piece is also abutted against the top cross beam, so that the soil body above the top cross beam and the pipe curtain structure can be supported, the soil body above the pipe curtain structure is prevented from settling, the problem of serious ground settlement is solved, the pipe curtain structure is supported by the device, the deformation of the pipe curtain structure is prevented, the construction quality is guaranteed, and the device is wide in application range.
The device for preventing the soil body on the upper part of the pipe curtain structure from settling is further improved in that the bottom of the frame body is also provided with the roller, and the roller and the jacking piece are arranged in a staggered mode.
The device for preventing the soil body on the upper part of the pipe curtain structure from settling is further improved in that the jacking piece comprises a vertical column fixedly arranged on the frame body and a jack arranged at the end part of the vertical column, and the length of the jacking piece is changed by extending or shortening the jack.
The device for preventing the soil body on the upper part of the pipe curtain structure from settling is further improved in that the jack is a hydraulic jack.
The device for preventing the soil body on the upper part of the pipe curtain structure from settling is further improved in that the frame body comprises a frame body with a rectangular cross section and a plurality of support rods connected between the frame bodies in a pulling mode, and the jacking piece is vertically arranged on the frame body.
The device for preventing the soil body on the upper part of the pipe curtain structure from settling is further improved in that the jacking pieces are provided with two parts which are oppositely arranged on two sides of the frame body.
The device for preventing the soil body on the upper part of the pipe curtain structure from settling is further improved in that a cross brace is supported between two opposite jacking pieces, and the cross brace is fixedly connected with the jacking pieces through a rib plate.
The device for preventing the soil body on the upper part of the pipe curtain structure from settling is further improved in that a plurality of inclined struts are connected between the jacking piece and the frame body.
The invention provides a construction method of a device for preventing soil mass on the upper part of a pipe curtain structure from settling, which comprises the following steps:
mounting a support structure on the bottom cross beam;
providing the device, and placing the device on the bottom cross beam;
extending the jacking piece to enable two ends of the jacking piece to respectively abut against the bottom cross beam and the top cross beam, so that the bottom cross beam is pushed to compact soil downwards and support the top cross beam and soil on the upper part of the pipe curtain structure, and a gap is formed between the top of the supporting structure and the top cross beam;
filling the gap with a spacer to shorten the jacking member for taking out the device.
The use method of the device for preventing the soil body on the upper part of the pipe curtain structure from settling is further improved in that the jacking piece comprises an upright post vertically arranged on the frame body and a jack arranged at the end part of the upright post;
and extending jacks at the top and the bottom of the upright column to prop the top cross beam and the bottom cross beam.
Drawings
Fig. 1 is a front view of the apparatus for preventing soil mass from settling on the upper portion of a pipe curtain structure according to the present invention.
Fig. 2 is a side view of the apparatus for preventing soil mass from settling on the pipe curtain structure of the present invention.
Fig. 3 is a top view of the apparatus for preventing soil mass settlement above a pipe curtain structure according to the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the invention provides a device for preventing the settlement of the soil body on the upper part of a pipe curtain structure, the frame body is arranged on a bottom cross beam, the length of a jacking piece is further adjusted, so that two ends of the jacking piece are respectively propped against the bottom cross beam and a top cross beam, the bottom cross beam pushes earth downwards in the jacking process of the jacking piece so that the earth is pressed and compacted, the bottom cross beam is located on the compacted earth, the settlement of the bottom cross beam and the top cross beam due to the deformation of the earth is avoided, and the top of the jacking piece is also propped against the top cross beam, so that the soil body above the top cross beam and the pipe curtain structure can be supported, the settlement of the soil body above the pipe curtain structure is prevented, the problem of serious ground settlement is solved, the pipe curtain structure is supported by the device, the deformation of the pipe curtain structure is prevented, the construction quality is ensured, and the application range of the device is wide. The following describes the device for preventing the soil body on the upper part of the pipe curtain structure from settling with reference to the attached drawings.
Referring to fig. 1, fig. 1 is a front view of the device for preventing soil mass on the pipe curtain structure from settling. The device for preventing the soil body on the upper part of the pipe curtain structure from settling is described with reference to fig. 1.
As shown in fig. 1, the device for preventing soil body on the upper part of a pipe curtain structure from settling of the invention is characterized in that a part of un-excavated soil is reserved in the pipe curtain structure, a bottom cross beam is paved on the soil, a top cross beam is erected at the top of the pipe curtain structure, and the device comprises: a frame body for being placed between the bottom cross beam and the top cross beam; and the jacking part 12 is vertically arranged on the frame body and has adjustable length, the two ends of the jacking part 12 respectively abut against the bottom cross beam and the top cross beam by adjusting the length of the jacking part 12, so that the bottom cross beam is pushed to compact soil downwards, and the top cross beam is tightly abutted against the top of the pipe curtain structure by the pushing of the jacking part 12, so that the pipe curtain structure and soil on the upper part of the pipe curtain structure are supported.
As a preferred embodiment of the present invention, as shown in fig. 3, the bottom of the frame body is further provided with a roller 13, the roller 13 and the lifting member 12 are arranged in a staggered manner, so that the frame body is convenient to move, and the roller 13 does not affect the length adjustment of the lifting member 12 due to the staggered arrangement.
Further, the lifting member 12 includes an upright 121 fixedly installed on the frame body and a jack 122 installed at an end of the upright 121, and the length of the lifting member 12 is changed by extending and retracting the jack 122.
Preferably, the jack 122 is a hydraulic jack.
Further, as shown in fig. 2, the frame body includes a frame body 11 with a rectangular cross section and a plurality of support rods 111 connected between the frame body 11 by a tie, the lifting member 12 is vertically installed on the frame body 11, and the hydraulic pump of the jack 122 can be placed on the frame body 11.
Preferably, the lifting member 12 is provided with two parts and is oppositely mounted on two sides of the frame 11.
Specifically, a cross brace 112 is supported between two opposite jacking pieces 12, and the cross brace 112 and the jacking pieces 12 are fixedly connected through a cross rib plate 1121, so as to reinforce the supporting strength between the jacking pieces 12.
Preferably, a plurality of braces 113 are connected between the lifting member 12 and the frame 11.
The concrete implementation mode of the device for preventing the soil body on the upper part of the pipe curtain structure from settling is as follows:
after the construction of the pipe curtain structure is completed, soil in the pipe curtain structure needs to be excavated step by step along the length direction of the pipe curtain structure, the upper half part of the soil in the pipe curtain structure is excavated firstly in the actual excavation process, so that the lower half part of the soil is left in the pipe curtain structure, a bottom cross beam is laid on the soil, a roller 13 of the device is arranged on the bottom cross beam, a vertical supporting structure is arranged on the bottom cross beam, and a top cross beam is erected at the top of the pipe curtain structure and above the supporting structure;
jacking a jack 122 positioned at the bottom of the upright 121, so that the end part of the jack 122 props against a bottom cross beam, jacking the jack 122 positioned at the top of the upright 121, so that the end part of the jack 122 props against a corresponding top cross beam, at the moment, the jacking piece 12 is supported between the top cross beam and the bottom cross beam, and the jacking piece 12 pushes against the bottom cross beam to compact soil downwards;
filling a cushion block in the gap to reduce the installation gap of the support frame, so that the support structure and the cushion block can prop the top cross beam and the bottom cross beam, shortening the jack 122 after the cushion block is erected, and pushing the device forwards to the next construction point along the bottom cross beam;
excavating the soil body of the lower half part of the pipe curtain structure, erecting a supporting structure at the bottom of the pipe curtain structure, and fixedly connecting the supporting structure with the supporting structure of the upper half part of the pipe curtain structure.
The invention also provides a construction method of the device for preventing the soil body on the upper part of the pipe curtain structure from settling, which comprises the following steps:
mounting a support structure on the bottom cross beam; providing the device, and placing the device on the bottom cross beam; extending the jacking piece 12 to enable two ends of the jacking piece 12 to respectively abut against the top cross beam and the bottom cross beam, so that the bottom cross beam is pushed to compact soil downwards and support soil bodies on the top cross beam and the upper part of the pipe curtain structure, and a gap is formed between the top of the supporting structure and the top cross beam; the gap is filled with spacers to reduce the mounting gap of the support frame and thereby shorten the jack 12 to remove the device.
Further, the jacking member 12 comprises a vertical column 121 vertically mounted on the frame body and a jack 122 mounted on the end of the vertical column 121;
The concrete operation mode of the construction method provided by the invention is as follows:
after the construction of the pipe curtain structure is completed, soil in the pipe curtain structure needs to be excavated step by step along the length direction of the pipe curtain structure, the upper half part of the soil in the pipe curtain structure is excavated firstly in the actual excavation process, so that the lower half part of the soil is left in the pipe curtain structure, a bottom cross beam is laid on the soil, a roller 13 of the device is arranged on the bottom cross beam, a vertical supporting structure is arranged on the bottom cross beam, and a top cross beam is erected at the top of the pipe curtain structure and above the supporting structure;
jacking a jack 122 positioned at the bottom of the upright 121, so that the end part of the jack 122 props against a bottom cross beam, jacking the jack 122 positioned at the top of the upright 121, so that the end part of the jack 122 props against a corresponding top cross beam, at the moment, the jacking piece 12 is supported between the top cross beam and the bottom cross beam, and the jacking piece 12 pushes against the bottom cross beam to compact soil downwards;
filling a cushion block in the gap to reduce the installation gap of the support frame, so that the support structure and the cushion block can prop the top cross beam and the bottom cross beam, shortening the jack 122 after the cushion block is erected, and pushing the device forwards to the next construction point along the bottom cross beam;
excavating the soil body of the lower half part of the pipe curtain structure, erecting a supporting structure at the bottom of the pipe curtain structure, and fixedly connecting the supporting structure with the supporting structure of the upper half part of the pipe curtain structure.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (4)
1. The utility model provides a device for preventing pipe curtain structure upper portion soil body subsides, a serial communication port, it has the partial earth that does not excavate to reserve in the pipe curtain structure, the earth upper berth is equipped with the bottom crossbeam, the pipe curtain structure top has erect the top crossbeam, the device includes:
the frame body is arranged between the bottom cross beam and the top cross beam and comprises a frame body with a rectangular cross section and a plurality of support rods connected between the frame bodies in a pulling mode;
the jacking parts are vertically and oppositely arranged on two sides of the frame body, a cross brace is supported between the two opposite jacking parts, the cross brace is fixedly connected with the jacking parts through a rib plate, a plurality of inclined braces are connected between the jacking parts and the frame body, each jacking part comprises an upright post fixedly arranged on the frame body and a jack arranged at the end part of the upright post, and the length of each jacking part is changed by extending or shortening the jack, so that two ends of each jacking part respectively abut against the bottom cross beam and the top cross beam, and the bottom cross beams are pushed to downwards compact the soil and support the pipe curtain structure and soil on the upper part of the pipe curtain structure; and
install in the gyro wheel of support body bottom, the gyro wheel with jacking piece dislocation set through the excavation the top half's earth in the pipe curtain structure is laid the bottom crossbeam at the top of surplus earth, and the extension jacking piece is in order to support the top the bottom crossbeam to the earth of downward compaction below can prevent that ground from subsiding and support the inside of pipe curtain structure, and then excavate again the earth of the latter half in the pipe curtain structure can avoid excavating the in-process of the inside soil body of pipe curtain structure, the soil body at pipe curtain structure top subsides to reduce the influence to ground and peripheral building.
2. The apparatus for preventing settlement of a soil mass above a pipe screen structure of claim 1, wherein the jack is a hydraulic jack.
3. A method of constructing an apparatus for preventing soil mass above a pipe curtain structure from settling as claimed in claim 1, comprising the steps of:
excavating the soil of the upper half part of the pipe curtain structure, and mounting a support structure on the bottom cross beam;
providing the device, and placing the device on the bottom cross beam;
extending the jacking piece to enable two ends of the jacking piece to respectively abut against the bottom cross beam and the top cross beam, so that the bottom cross beam is pushed to downwardly compact the soil and support the top cross beam and the soil body on the upper portion of the pipe curtain structure, and a gap is formed between the top of the supporting structure and the top cross beam, so that the soil body on the top of the pipe curtain structure can be prevented from settling in the process of excavating the soil body inside the pipe curtain structure, and the influence on the ground and surrounding buildings is reduced;
filling a cushion block in the gap, and further shortening the jacking piece to take out the device;
excavation the earth of the latter half among the pipe curtain structure the bottom of pipe curtain structure is established bearing structure, and will bearing structure in the latter half of pipe curtain structure with bearing structure fixed connection in the first half of pipe curtain structure.
4. The method of using the apparatus for preventing settlement of soil above a pipe screen structure according to claim 3, wherein the jacking member comprises a column vertically installed on the frame body and a jack installed at an end of the column;
and extending the jacks at the top and the bottom of the upright column to prop the top cross beam and the bottom cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041209.8A CN111255490B (en) | 2020-01-15 | 2020-01-15 | Device for preventing soil body on upper part of pipe curtain structure from settling and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041209.8A CN111255490B (en) | 2020-01-15 | 2020-01-15 | Device for preventing soil body on upper part of pipe curtain structure from settling and construction method thereof |
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| Publication Number | Publication Date |
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| CN111255490A CN111255490A (en) | 2020-06-09 |
| CN111255490B true CN111255490B (en) | 2021-11-19 |
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| CN107060348A (en) * | 2017-06-16 | 2017-08-18 | 中国五冶集团有限公司 | A kind of jacking adjusting apparatus for high-altitude wire frame |
| CN110017158A (en) * | 2019-04-26 | 2019-07-16 | 天地科技股份有限公司上海分公司 | Tunnel safety protective cradle |
| CN209163402U (en) * | 2018-07-27 | 2019-07-26 | 中铁十四局集团有限公司 | A kind of movable operation platform |
| CN209354168U (en) * | 2018-11-30 | 2019-09-06 | 上海隧道工程有限公司 | The adjustable bracketing of pipe curtain inner support |
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2020
- 2020-01-15 CN CN202010041209.8A patent/CN111255490B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803450A (en) * | 2012-11-15 | 2014-05-21 | 五冶集团上海有限公司 | Hydraulic jacking rapid supporting device and method |
| CN204591280U (en) * | 2015-04-28 | 2015-08-26 | 中铁十八局集团第一工程有限公司 | A kind of mobile platform structure for pipe curtain jacking construction |
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| CN111255490A (en) | 2020-06-09 |
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