CN114961342A - Unearthed passage structure utilizing existing diagonal braces in foundation pit - Google Patents
Unearthed passage structure utilizing existing diagonal braces in foundation pit Download PDFInfo
- Publication number
- CN114961342A CN114961342A CN202210672581.8A CN202210672581A CN114961342A CN 114961342 A CN114961342 A CN 114961342A CN 202210672581 A CN202210672581 A CN 202210672581A CN 114961342 A CN114961342 A CN 114961342A
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- foundation pit
- trestle
- horizontal channel
- inclined ramp
- horizontal
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- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 8
- 238000004134 energy conservation Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 101150054854 POU1F1 gene Proteins 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G27/00—Temporary arrangements for giving access from one level to another for men or vehicles, e.g. steps, ramps
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
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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
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Foundations (AREA)
Abstract
The invention discloses a unearthed passage structure utilizing an existing diagonal brace in a foundation pit, which comprises three sections, wherein the first section is a horizontal passage I which is arranged by utilizing a supporting beam of a first support in the existing diagonal brace, the second section is an inclined ramp which is arranged between the existing first support and a second support, and the third section is a horizontal passage II which is arranged by utilizing a supporting beam of the second support in the existing diagonal brace; the horizontal channel I, the inclined ramp and the horizontal channel II are sequentially connected, and two ends of a supporting beam of the first support right above the inclined ramp are elevated to form a portal upturning beam; and all laying the trestle plates on the horizontal channel I, the inclined ramp and the horizontal channel II to form a supporting beam of the horizontal channel I and the horizontal channel II as trestle beams, so that the unearthed channel structure forms a trestle structure, and the trestle beam of the trestle structure is supported on the engineering pile through the existing stand column. The invention fully utilizes the internal space of the original support structure system and increases the construction operation space inside the foundation pit.
Description
Technical Field
The invention belongs to the field of foundation pit engineering, and particularly relates to a unearthed passage structure utilizing existing diagonal braces in a foundation pit.
Background
The method improves the traditional engineering technology, realizes energy conservation and environmental protection, and is one of the current technological innovation directions. The foundation pit unearthing technology of the slope road in the traditional trestle structure form is independent of a supporting structure. In general, the ramp in the trestle structure form and the counter-bracing structure of the foundation pit are parallel to each other in spatial relationship, and the structural forms of the ramp and the counter-bracing structure have certain similarity. Therefore, the ramp in the trestle type by utilizing the foundation pit opposite-supporting structure is researched, so that the extrusion of the inner space of the foundation pit by independently arranging the ramp can be avoided, and materials, manpower, construction period and construction cost can be saved to a considerable extent; the method is beneficial to the improvement of engineering technology, and realizes energy conservation and environmental protection to a certain extent.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a unearthed passage structure utilizing the existing diagonal braces in the foundation pit, and the passage increases the construction operation space in the foundation pit on the basis of the existing diagonal brace structure of the foundation pit, can realize energy conservation and environmental protection, and can save materials, manpower, construction period and construction cost to a certain extent.
A unearthed channel structure utilizing existing diagonal braces in a foundation pit is characterized in that the existing diagonal braces in the foundation pit are a first brace and a second brace which are arranged in parallel, the unearthed channel structure comprises three sections, the first section is a horizontal channel I which is arranged by utilizing a support beam of the first brace in the existing diagonal braces, the second section is an inclined ramp which is arranged between the first brace and the second brace, and the third section is a horizontal channel II which is arranged by utilizing a support beam of the second brace in the existing diagonal braces; the horizontal channel I, the inclined ramp and the horizontal channel II are sequentially connected, and two ends of a supporting beam of the first support right above the inclined ramp are elevated to form a portal upturning beam;
all lay the trestle board on horizontal channel one, inclined ramp and the horizontal channel two, constitute horizontal channel one and the supporting beam of horizontal channel two regard as the trestle bridge simultaneously, thereby make unearthed access structure forms the trestle structure, the trestle bridge of trestle structure supports on the engineering stake through existing stand.
Furthermore, the cross-sectional sizes of the support beams forming the first horizontal channel and the support beams forming the second horizontal channel are increased and are consistent with the cross-sectional size of the stack bridge forming the inclined ramp.
Furthermore, a reinforced supporting structure is arranged on the original supporting foundation on the side wall of the foundation pit at an inlet of the horizontal channel.
Further, the inclination angle of the series of door frame type upturning beams of the first support right above the inclined ramp is the same as that of the inclined ramp.
Further, the upright posts are lattice upright posts.
The invention has the following beneficial effects:
1. the invention utilizes the unearthed passage structure with the slope ramp arranged on the opposite supports, fully utilizes the internal space of the support structure system, saves the space required by independently arranging the slope ramp and increases the whole construction operation space inside the foundation pit.
2. According to the invention, the existing unearthing passage structure with the slope ramp oppositely arranged is utilized, and the existing supporting structure system is partially utilized, so that compared with the structure with the slope ramp arranged independently, the manpower and material resources can be saved to a great extent, and further, the construction period and the engineering cost are saved; energy conservation and environmental protection are indirectly realized to a certain extent.
Drawings
FIG. 1 is a longitudinal sectional view of the unearthed passage structure.
FIG. 2 is a sectional view taken along line A-A.
Figure 3 is a first floor plan.
Fig. 4 is a second support floor plan.
Figure 5 is a plan top view of the entire unearthed channel structure.
Fig. 6 is a large view of the pillar structure.
Illustration of the drawings: 1-foundation pit, 2-supporting beam, 3-portal upturning beam, 4-inclined ramp, 5-trestle, 6-trestle plate, 7-upright post, 8-foundation pit bottom, 9-engineering pile, 10-row pile, 11-waterproof curtain, 12-capping beam, 13-connecting beam and 14-enclosure .
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the objects and effects of the present invention will become more apparent, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
The design of the invention is originally designed as follows: the inclined ramp and the opposite support of the foundation pit are generally arranged in parallel, and the inclined ramp in the trestle structure form has certain similarity with a structural system of the opposite support, and part of components can be shared theoretically, so that the inclined ramp is fused into the structural system of the opposite support of the foundation pit, the existing opposite support is fully utilized, and the inclined ramp is arranged in the middle to construct a digging channel.
As shown in fig. 1 to 6, the existing counter stays in the foundation pit 1 are a first support and a second support which are arranged in parallel, the unearthed passage structure utilizing the existing counter stays in the foundation pit 1 of the invention comprises three sections, the first section is a horizontal passage I which is arranged by utilizing the supporting beam 2 of the first support in the existing counter stays, the second section is an inclined ramp 4 which is arranged between the existing first support and the second support, and the third section is a horizontal passage II which is arranged by utilizing the supporting beam 2 of the second support in the existing counter stays; horizontal channel one, inclined ramp 4 and horizontal channel two connect gradually, and in order to avoid the not enough problem that leads to the unable current of earth moving car of vertical space between inclined ramp 4 and the supporting beam 2, the supporting beam both ends of the first support directly over inclined ramp 4 are raised and are become portal formula upturning roof beam 3. And bridge decks 6 are paved on the horizontal channel I, the inclined ramp 4 and the horizontal channel II, so that the unearthed channel structure forms a trestle structure, and a trestle bridge 5 of the trestle structure is supported on an engineering pile 9 through an existing upright post 7.
Under normal conditions, the unearthed passage structure needs to bear the load of an earth moving vehicle, and the supporting beams 2 forming the horizontal passage I and the horizontal passage II are simultaneously used as the trestle 5, so that the section size of the supporting beam 2 at the position needs to be increased to be consistent with the section size of the trestle 5 forming the inclined ramp 4, and the integral rigidity of the original supporting structure system is improved. The upright columns 7 forming the whole unearthed passage structure are all original lattice upright columns and are supported on the engineering piles 9 below the bottom surface 8 of the foundation pit. Meanwhile, in consideration of the load effect when the earthwork vehicle enters and exits, the side wall of the foundation pit at the entrance of the foundation pit of the unearthed passage structure is reinforced and supported. As shown in fig. 1, the support of the periphery of the foundation pit 1 is implemented by using row piles 10 combined with a waterproof curtain 11, and is reinforced by using double row piles 10 near the entrance position of the unearthed passage structure. The top of the row piles 10 are connected into a whole by adopting capping beams 12, wherein the capping beams 12 at the top of the double row piles 10 are connected by adopting connecting beams 13. The supporting beams 2 and the row piles 10 are connected through arranging surrounding purlins 14 or capping beams 12.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and although the invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes in the form and details of the embodiments may be made and equivalents may be substituted for elements thereof. All modifications, equivalents and the like which come within the spirit and principle of the invention are intended to be included within the scope of the invention.
Claims (5)
1. A unearthed channel structure utilizing existing diagonal braces in a foundation pit is characterized by comprising three sections, wherein the first section is a horizontal channel I arranged by utilizing a supporting beam of the first brace in the existing diagonal braces, the second section is an inclined ramp arranged between the first brace and the second brace, and the third section is a horizontal channel II arranged by utilizing the supporting beam of the second brace in the existing diagonal braces; the horizontal channel I, the inclined ramp and the horizontal channel II are sequentially connected, and two ends of a supporting beam of the first support right above the inclined ramp are elevated to form a portal upturning beam;
all lay the trestle board on horizontal channel one, inclined ramp and the horizontal channel two, constitute horizontal channel one and the supporting beam of horizontal channel two regard as the trestle bridge simultaneously, thereby make unearthed access structure forms the trestle structure, the trestle bridge of trestle structure supports on the engineering stake through existing stand.
2. The unearthed passage structure using existing diagonal braces in a foundation pit according to claim 1, wherein the cross-sectional dimensions of the support beams constituting the first horizontal passage and the support beams constituting the second horizontal passage are increased to be consistent with the cross-sectional dimensions of the trestle bridges constituting the inclined ramp.
3. The structure of the excavated passageway using the existing diagonal braces in the foundation pit according to claim 1, wherein a reinforcing brace structure is provided on the original brace foundation at the side wall of the foundation pit at an entrance of the horizontal passageway.
4. The unearthing passage structure for utilizing existing diagonal braces in a foundation pit as claimed in claim 1, wherein the inclination angle of the series of portal upturned beams of the first brace right above the inclined ramp is the same as that of the inclined ramp.
5. The unearthed passage structure utilizing existing diagonal braces in a foundation pit as claimed in claim 1, wherein the columns are lattice columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210672581.8A CN114961342A (en) | 2022-06-14 | 2022-06-14 | Unearthed passage structure utilizing existing diagonal braces in foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210672581.8A CN114961342A (en) | 2022-06-14 | 2022-06-14 | Unearthed passage structure utilizing existing diagonal braces in foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114961342A true CN114961342A (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210672581.8A Pending CN114961342A (en) | 2022-06-14 | 2022-06-14 | Unearthed passage structure utilizing existing diagonal braces in foundation pit |
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| CN (1) | CN114961342A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08128213A (en) * | 1994-11-01 | 1996-05-21 | Sekisui House Ltd | Construction method using workbench unit |
| CN104005571A (en) * | 2014-06-17 | 2014-08-27 | 浙江华展工程研究设计院有限公司 | Slanting construction trestle combined with internal supporting system |
| RU2686206C1 (en) * | 2018-08-28 | 2019-04-24 | Руслан Игоревич Чернов | Method of erection of underground structures along river bed or canal |
| CN110004936A (en) * | 2019-05-20 | 2019-07-12 | 中建四局土木工程有限公司 | A kind of unearthed ramp and construction method based on deep foundation pit supporting structure |
| CN110593080A (en) * | 2019-09-26 | 2019-12-20 | 中建钢构有限公司 | Inter-support trestle system combined with inner support system and construction method |
| CN111851509A (en) * | 2020-07-22 | 2020-10-30 | 深圳市工勘岩土集团有限公司 | Temporary channel construction method based on deep foundation pit inner support structure |
-
2022
- 2022-06-14 CN CN202210672581.8A patent/CN114961342A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08128213A (en) * | 1994-11-01 | 1996-05-21 | Sekisui House Ltd | Construction method using workbench unit |
| CN104005571A (en) * | 2014-06-17 | 2014-08-27 | 浙江华展工程研究设计院有限公司 | Slanting construction trestle combined with internal supporting system |
| RU2686206C1 (en) * | 2018-08-28 | 2019-04-24 | Руслан Игоревич Чернов | Method of erection of underground structures along river bed or canal |
| CN110004936A (en) * | 2019-05-20 | 2019-07-12 | 中建四局土木工程有限公司 | A kind of unearthed ramp and construction method based on deep foundation pit supporting structure |
| CN110593080A (en) * | 2019-09-26 | 2019-12-20 | 中建钢构有限公司 | Inter-support trestle system combined with inner support system and construction method |
| CN111851509A (en) * | 2020-07-22 | 2020-10-30 | 深圳市工勘岩土集团有限公司 | Temporary channel construction method based on deep foundation pit inner support structure |
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