CN105839644A - Foundation pit fixed foot drainage device and method - Google Patents
Foundation pit fixed foot drainage device and method Download PDFInfo
- Publication number
- CN105839644A CN105839644A CN201610099815.9A CN201610099815A CN105839644A CN 105839644 A CN105839644 A CN 105839644A CN 201610099815 A CN201610099815 A CN 201610099815A CN 105839644 A CN105839644 A CN 105839644A
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- CN
- China
- Prior art keywords
- section steel
- channel
- foundation pit
- steel
- foundation ditch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/20—Restraining of underground water by damming or interrupting the passage of underground water by displacing the water, e.g. by compressed air
Abstract
The invention discloses a foundation pit fixed foot drainage device and method. Layering excavation and layering supporting are conducted on a foundation pit. A plurality of pieces of U-steel are additionally arranged at the bottom of the side wall of the foundation pit and are connected through anchor ropes, the bottom of the foundation pit is additionally provided with pieces of U-steel connected with the vertical U-steel arranged on the side wall through bolts, and finally a piece of angle steel is additionally arranged on each piece of U-steel so that the stability of the U-steel on the side wall of the foundation pit can be ensured. The supporting mode of the foundation pit is the mode of soil nails and a concrete pavement or the mode of slope protection piles. According to the foundation pit fixed foot drainage device and method, soil bodies at the bottom of the side wall of the foundation pit are reinforced, and a fixed foot anti-slide function is achieved; combined supporting of the U-steel and the anchor ropes is adopted, the integrity of the supporting structure is improved, and the drainage performance of the interior of the foundation pit is improved; the pieces of U-steel are embedded at the bottom of the foundation pit, so that underground water of the side wall of the foundation pit is drained through the U-steel, and a better drainage effect is achieved; and accordingly, foundation pit supporting is conducted through the method, not only can the integrity and the anti-slide stability of the supporting structure be improved, but also the drainage function of the foundation pit can be improved.
Description
Technical field
The present invention is the solid foot discharge structure of a kind of foundation ditch, and this structure mainly uses channel-section steel and angle steel pair
Foundation ditch carries out draining and reinforces foundation pit side-wall bottom soil body, prevents the base of foundation ditch generation lateral sliding
Hole support engineering, belongs to engineering construction technology field,
Background technology
In the Excavation Process of city, according to foundation ditch periphery exist existing building situation and
Geological condition situation, selects different method for protecting support.In order to ensure foundation ditch stable,
Prevent foundation ditch from sliding failure occurring, it is necessary to use suitable foundation pit support plan, general in practice
Conventional foundation pit supporting method includes: 1) plate brad supporting.Foundation ditch is used to put slope excavation, to base
Hole sidewall uses the method that soil-nail wall support adds gunite concrete surface layer.2) campshed Prestressing
Anchorage cable method.I.e. first lay placing of reinforcement concrete-pile, then a step excavation soil body at foundation ditch periphery,
Shi Hanzhang anchor cable at projected depth, limits the horizontal displacement of hole Zhou Tuti.3) campshed
Add inner support method.I.e. first lay placing of reinforcement concrete-pile, then a step excavation at foundation ditch periphery
The soil body, applies bracing members at projected depth, limits the horizontal displacement of hole Zhou Tuti, strengthen and prop up
The stability of protection structure.
Above-mentioned three kinds of foundation pit support plan, all have respective limitation, in some specific environments
Inapplicable:
Plate brad supporting method, it is desirable to surrounding building can not be too near apart from foundation ditch, otherwise cannot be carried out
Put slope construction, and require that foundation depth can not be the deepest.
Campshed Prestressing anchorage cable method, it is desirable to buildings around foundation pit basis can not hypotelorism,
Otherwise affect anchor cable construction.
Campshed adds inner support method, it is desirable to sleeve configuration foundation ditch, and the direction applying bracing members can not be oversize,
Otherwise bracing members amount of deflection is excessive.
Summary of the invention
Technical scheme and key technology are to lay bottom the foundation pit side-wall intending excavation
Channel-section steel is reinforced and channel-section steel discharge structure.
The solid foot drainage arrangement of a kind of foundation ditch, wherein, foundation ditch uses stage excavation layering supporting；?
If adding arterial highway channel-section steel (1) bottom foundation pit side-wall, between each channel-section steel (1), use anchor cable (2)
Connect, bottom foundation ditch, add channel-section steel (1) channel-section steel vertical with sidewall bolt (4) be connected,
Finally on channel-section steel (1), add one angle steel (3), to ensure the channel-section steel (1) of foundation pit side-wall
Stability；The support pattern of foundation ditch is that soil nailing (6) adds concrete topping (5) or slope protection pile
(7) form.
The solid foot water discharge method of a kind of foundation ditch, when the support pattern of foundation ditch is that soil nailing (6) adds coagulation
During soil surface layer (5) form, after foundation pit side-wall gunite concrete surface layer (5) completes, at foundation ditch
Sidewall bottom embed twice level to channel-section steel and make channel-section steel opening direction towards foundation pit side-wall, simultaneously
On channel-section steel, the some roads of vertical channel-section steel that spacing is equal are added in twice level；Level to channel-section steel and
Anchor cable (2) is used to connect between vertical channel-section steel；Bottom foundation ditch lay channel-section steel (1) and make its with
The vertical channel-section steel bolt (4) of sidewall connects.Steady in order to ensure the channel-section steel (1) of foundation pit side-wall
Qualitative, add one angle steel (3) thereon.
The solid foot water discharge method of a kind of foundation ditch, when the support pattern of foundation ditch is slope protection pile (7) form
Time, the level that adds bottom foundation pit side-wall is to channel-section steel twice, and makes channel-section steel opening direction and foundation ditch
Sidewall is on the contrary, and the vertical channel-section steel simultaneously adding spacing on channel-section steel equal in twice level is some
Road, vertical channel-section steel uses anchor cable (2) to be connected with level to channel-section steel, lays channel-section steel bottom foundation ditch
And make it be connected with the vertical channel-section steel bolt (4) of sidewall (1).In order to ensure foundation pit side-wall
Channel-section steel (1) stability, add one angle steel (3) thereon.
The present invention is the solid foot draining of foundation ditch, is a set of mainly for preventing foundation pit side-wall from sliding
Dynamic, strengthen the foundation pit supporting method of drainage of foundation pit.Mainly solve techniques below problem: 1,
Foundation pit side-wall bottom soil body is reinforced, plays the effect of solid foot antiskid；Use channel-section steel (1)
With anchor cable (2) combined support, strengthen the globality of supporting construction.2, the row in foundation ditch is strengthened
Water；By burying channel-section steel (1) bottom foundation ditch underground, the subsoil water of foundation pit side-wall is made to pass through channel-section steel
Drain, reach more preferable drainage effect.Therefore, use this method to carry out pattern foundation pit supporting structure, both may be used
To increase globality and the stability against sliding of supporting construction, the drain function of foundation ditch also can be strengthened.
Accompanying drawing explanation
Fig. 1 is elevation during plate brad supporting.
Fig. 2 is elevation during campshed.
Fig. 3 is profile during plate brad supporting.
Fig. 4 is profile during campshed.
In figure: 1, channel-section steel, 2, anchor cable, 3, angle steel, 4, bolt, 5, concrete topping,
6, soil nailing, 7, slope protection pile.
Detailed description of the invention
As Figure 1-4, foundation ditch uses stage excavation layering supporting, and supporting uses soil nailing (6)
Add concrete topping (5) or use the method for protecting support of slope protection pile (7).At the bottom of foundation pit side-wall
If portion adds horizontal twice and arterial highway vertical slot steel (1), between transverse channel steels and vertical channel-section steel
Use anchor cable (2) to connect, bottom foundation ditch, add channel-section steel (1) and sidewall vertical channel-section steel spiral shell
Bolt (4) connects, and finally adds one angle steel (3) on channel-section steel (1).
Claims (3)
1. the solid foot drainage arrangement of foundation ditch, wherein, foundation ditch uses stage excavation layering supporting；
It is characterized in that: if adding arterial highway channel-section steel (1) bottom foundation pit side-wall, each channel-section steel (1) it
Between use anchor cable (2) to connect, bottom foundation ditch, add channel-section steel (1) and the vertical channel-section steel of sidewall use
Bolt (4) connects, and finally adds one angle steel (3) on channel-section steel (1), to ensure base
Channel-section steel (1) stability of hole sidewall；The support pattern of foundation ditch is that soil nailing (6) adds concrete surface
Layer (5) or the form of slope protection pile (7).
2. utilize claim 1 the solid foot water discharge method of a kind of foundation ditch of described device, its feature
Be: when the support pattern of foundation ditch be soil nailing (6) add concrete topping (5) form time, base
After hole sidewall gunite concrete surface layer (5) completes, bottom foundation pit side-wall, embed twice level
To channel-section steel and make channel-section steel opening direction towards foundation pit side-wall, add on channel-section steel in twice level simultaneously
If the some roads of vertical channel-section steel that spacing is equal；Level uses anchor cable between channel-section steel and vertical channel-section steel
(2) connect；Lay channel-section steel (1) bottom foundation ditch and make the vertical channel-section steel bolt of itself and sidewall
(4) connect；In order to ensure channel-section steel (1) stability of foundation pit side-wall, add thereon together
Angle steel (3).
3. utilize claim 1 the solid foot water discharge method of a kind of foundation ditch of described device, its feature
It is: when the support pattern of foundation ditch is slope protection pile (7) form, add bottom foundation pit side-wall
If level is to channel-section steel twice, and make channel-section steel opening direction with foundation pit side-wall to contrary, simultaneously two
Road level adds the some roads of vertical channel-section steel that spacing is equal on channel-section steel, vertical channel-section steel and level to
Channel-section steel uses anchor cable (2) to connect, lay bottom foundation ditch channel-section steel (1) and make it with sidewall perpendicular
Connect to channel-section steel bolt (4)；In order to ensure channel-section steel (1) stability of foundation pit side-wall,
One angle steel (3) is added on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610099815.9A CN105839644B (en) | 2016-02-23 | 2016-02-23 | A kind of solid pin drainage arrangement of foundation ditch and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610099815.9A CN105839644B (en) | 2016-02-23 | 2016-02-23 | A kind of solid pin drainage arrangement of foundation ditch and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105839644A true CN105839644A (en) | 2016-08-10 |
| CN105839644B CN105839644B (en) | 2018-02-23 |
Family
ID=56587872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610099815.9A Active CN105839644B (en) | 2016-02-23 | 2016-02-23 | A kind of solid pin drainage arrangement of foundation ditch and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105839644B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001049667A (en) * | 1999-08-06 | 2001-02-20 | Kaiyo Kogyo Kk | Construction method for road ground or the like |
| CN103410160A (en) * | 2013-08-18 | 2013-11-27 | 葛洲坝集团第五工程有限公司 | Combined supporting method for bedding extra-high rock side slope |
| CN203603127U (en) * | 2013-11-12 | 2014-05-21 | 中工国际工程股份有限公司 | Check valve type drainage system for underground water in channel |
| CN204126343U (en) * | 2014-06-26 | 2015-01-28 | 中天建设集团有限公司 | A kind of channel-section steel rhone platform |
| CN204626396U (en) * | 2015-03-23 | 2015-09-09 | 大连理工大学 | A kind of foundation ditch composite soil nailed wall |
-
2016
- 2016-02-23 CN CN201610099815.9A patent/CN105839644B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001049667A (en) * | 1999-08-06 | 2001-02-20 | Kaiyo Kogyo Kk | Construction method for road ground or the like |
| CN103410160A (en) * | 2013-08-18 | 2013-11-27 | 葛洲坝集团第五工程有限公司 | Combined supporting method for bedding extra-high rock side slope |
| CN203603127U (en) * | 2013-11-12 | 2014-05-21 | 中工国际工程股份有限公司 | Check valve type drainage system for underground water in channel |
| CN204126343U (en) * | 2014-06-26 | 2015-01-28 | 中天建设集团有限公司 | A kind of channel-section steel rhone platform |
| CN204626396U (en) * | 2015-03-23 | 2015-09-09 | 大连理工大学 | A kind of foundation ditch composite soil nailed wall |
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| Publication number | Publication date |
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| CN105839644B (en) | 2018-02-23 |
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Address after: 100022 No. 100 Chaoyang District Ping Tian Park, Beijing Patentee after: Beijing University of Technology Patentee after: China Railway Construction Group Infrastructure Construction Co., Ltd Address before: 100124 Chaoyang District, Beijing Ping Park, No. 100 Patentee before: Beijing University of Technology Patentee before: CHINA RAILWAY CONSTRUCTION GROUP MUNICIPAL ENGINEERING Co.,Ltd. |
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