CN106088146B - A kind of interim ground-connecting-wall Demolition Construction method - Google Patents
A kind of interim ground-connecting-wall Demolition Construction method Download PDFInfo
- Publication number
- CN106088146B CN106088146B CN201610580185.7A CN201610580185A CN106088146B CN 106088146 B CN106088146 B CN 106088146B CN 201610580185 A CN201610580185 A CN 201610580185A CN 106088146 B CN106088146 B CN 106088146B
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- China
- Prior art keywords
- wall
- sole plate
- interim ground
- soil body
- construction method
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
Abstract
The invention discloses a kind of interim ground-connecting-wall Demolition Construction methods, comprising steps of removing in the bottom soil body below interim ground-connecting-wall to sole plate bottom cushion；The bottom soil body is backfilled to sole plate bottom cushion；Fill up sole plate bottom cushion；Close sole plate.The present invention uses and removes interim ground-connecting-wall bottom to the bottom soil body below sole plate bottom cushion, and sole plate is reduced by backfill in the rigidity for the bottom structure for provisionally connecting wall displacement, to reduce sole plate because of bottom plate drawing crack caused by differential settlement, while guaranteeing basis and operation safety, it ensure that the integrality of sole plate, it is therefore prevented that underground water leakage.
Description
Technical field
The present invention relates to a kind of building field more particularly to a kind of interim ground-connecting-wall Demolition Construction methods.
Background technique
Coastal Soft Deep Foundation Pit has significant " tau-effect ", and exposure duration is longer, and foundation pit area is bigger, and foundation pit becomes
Shape amount is bigger.Therefore the method for mostly using point storehouse to implement in construction reduces foundation pit area, wherein mostly use interim ground-connecting-wall into
Row separates.When interim ground-connecting-wall two sides, main structure needs to remove interim ground-connecting-wall after going out foundation pit.However remove interim ground-connecting-wall
It is scientific, reasonable that construction method needs, under the premise of guaranteeing deep pit monitor, it is ensured that the integrality of sole plate.Because provisionally connecting
The vertical elevation that wall is removed directly determines the water penetration on basis, integrality.If interim ground-connecting-wall bottom is removed to sole plate
Epithelium, then underground water can be leaked from the gap of interim ground-connecting-wall and two sides bottom plate.If interim ground-connecting-wall 21 is removed to basis
Under 22 bed course 23 of bottom plate, sole plate 22 of then constructing again, as shown in Figure 1, because sole plate 22 is in interim ground-connecting-wall 21
Position is different from the rigidity of other positions sole plate bottom solum 24, therefore sole plate can be caused to draw because of differential settlement
It splits, so as to cause underground water leakage.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of interim ground-connecting-wall Demolition Construction methods, can be effectively reduced
Sole plate in the bottom rigidity for provisionally connecting wall displacement, thus reduce sole plate because caused by differential settlement bottom plate draw
It splits.
In order to realize the above technical effect, the invention discloses a kind of interim ground-connecting-wall Demolition Construction methods, comprising steps of
It removes in the bottom soil body below interim ground-connecting-wall to sole plate bottom cushion；
The bottom soil body is backfilled to sole plate bottom cushion；
Fill up sole plate bottom cushion；
Close sole plate.
The interim ground-connecting-wall Demolition Construction method, which is further improved, to be, removes interim ground-connecting-wall to sole plate bottom
Before in bottom soil body below portion's bed course, further includes: from top to bottom successively remove the interim ground-connecting-wall of each floor, and removing
The interim ground-connecting-wall rear enclosed of each floor corresponds to the beam slab post-cast strip of floor.
The interim ground-connecting-wall Demolition Construction method, which is further improved, to be, the interim ground-connecting-wall is removed to basic bottom
200mm~400mm below plate bottom cushion, in the refill spaces for forming corresponding depth in the bottom soil body.
The interim ground-connecting-wall Demolition Construction method, which is further improved, to be, further includes before backfilling the bottom soil body
Step: in waterproof layer is arranged in the refill spaces.
The interim ground-connecting-wall Demolition Construction method, which is further improved, to be, it is empty that the waterproof layer is completely laid on the backfill
Between and extend to the upper surface of sole plate bottom cushion.
The interim ground-connecting-wall Demolition Construction method, which is further improved, to be, using consistent with the bottom soil body intensity
The soil body backfill the refill spaces to the lower surface of sole plate bottom cushion.
The interim ground-connecting-wall Demolition Construction method, which is further improved, to be, when closing sole plate, is connect in closing
Waterproof construction is set in seam.
The interim ground-connecting-wall Demolition Construction method, which is further improved, to be, the waterproof construction includes steel plate for sealing water
And/or rubber water-proof item.
The interim ground-connecting-wall Demolition Construction method, which is further improved, to be, sole plate is base plate of foundation pit.
The present invention makes it have following the utility model has the advantages that by tearing interim ground-connecting-wall open due to using above technical scheme
Except in the bottom soil body below sole plate bottom cushion, and sole plate is reduced in interim ground-connecting-wall position by backfill
The rigidity for the bottom structure set is guaranteeing basis and is making to reduce sole plate because of bottom plate drawing crack caused by differential settlement
While industry is safe, the integrality of sole plate ensure that, it is therefore prevented that underground water leakage.
Detailed description of the invention
Fig. 1 is conventional interim ground-connecting-wall bottom Demolition Construction figure.
Fig. 2 is the construction process figure of the interim ground-connecting-wall Demolition Construction method of the present invention.
Fig. 3~6 are interim ground-connecting-wall bottom Demolition Construction schematic diagram in the interim ground-connecting-wall Demolition Construction method of the present invention.
Fig. 7~14 are that interim ground-connecting-wall is removed to bottom base panel in the interim ground-connecting-wall Demolition Construction method of the present invention
Construction schematic diagram.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is described in further detail.
Firstly, a kind of interim ground-connecting-wall Demolition Construction method of the present invention mainly includes construction procedure refering to shown in Fig. 2~6:
S001: it removes in interim ground-connecting-wall 11 to the bottom soil body 14 of 12 bottom cushion of sole plate, 13 lower section, such as Fig. 3 institute
Show；
S002: backfill bottom soil body to 12 bottom cushion 13 of sole plate, as shown in Figure 4；
S003: 12 bottom cushion 13 of sole plate is filled up, as shown in Figure 5；
S004: closing sole plate 12, as shown in Figure 6.
Wherein, the bottom of interim ground-connecting-wall 11 it is general it is dismountable to 12 bottom cushion of sole plate, 13 lower section about 200mm~
400mm, preferably 300mm are (through multiple Check computations, it is contemplated that construction efficiency, engine request and economic benefit show the thickness
Can reach preferable construction effect), at this point, in the refill spaces for forming corresponding depth in the bottom soil body 14 of 13 lower section of bed course
141。
In step S002: before backfill bottom soil body, further comprising the steps of: in the refill spaces 141 formed in bottom soil body 14
Interior setting waterproof layer (not showing waterproof layer in figure), the waterproof layer completely can be laid on refill spaces 141 and extend to sole plate 12
The upper surface of bottom cushion 13 prevents bed course 13 from leaking.
Backfill bottom soil body 14 refill spaces 141 when, generally use with the consistent soil body of 14 intensity of bottom soil body into
Row backfill is simultaneously pragmatic, and backfills the soil body to the lower surface of 12 bottom cushion 13 of sole plate, to ensure the sole plate after backfilling
Bottom structure rigidity it is consistent, prevent ground-connecting-wall remove after sole plate because bottom rigidity difference due to cause differential settlement,
To cause sole plate drawing crack, the problem of underground water leaks.
In step S004: when closing sole plate 12, the closing between the sole plate newly constructed and original basis bottom plate
Waterproof construction is set in seam, which may include steel plate for sealing water and/or rubber water-proof item, in the present embodiment, simultaneously
Using steel plate for sealing water 121 and rubber water-proof item 122, it is separately positioned between the sole plate newly constructed and original basis bottom plate
In closure seam, leaked to avoid underground water at closure seam, waterproof effect is preferable.
A kind of interim ground-connecting-wall Demolition Construction method of the present invention, which mainly passes through, removes interim ground-connecting-wall to sole plate bottom
In bottom soil body below portion's bed course, and sole plate is reduced by backfill and is provisionally connecting the bottom structure of wall displacement
Rigidity while guaranteeing basis and operation safety, is protected to reduce sole plate because of bottom plate drawing crack caused by differential settlement
The integrality of sole plate is demonstrate,proved, it is therefore prevented that underground water leakage.
A kind of interim ground-connecting-wall Demolition Construction method of the present invention is constructed suitable for coastal Soft Deep Foundation Pit.At this point, basic
Bottom plate is base plate of foundation pit, and it is bottom soil body below bed course that the bottom of base plate of foundation pit, which is equipped with bed course, and the bottom of interim ground-connecting-wall is goed deep into
In bottom soil body, in interim ground-connecting-wall two sides, main structure needs to remove interim ground-connecting-wall after going out foundation pit, while repairing base plate of foundation pit
With each floor beam slab.
Below with reference to interim ground-connecting-wall Demolition Construction method of the invention, the base of a base plate of foundation pit five floor of room located underground is enumerated
The overall pulling down arrangement and method for construction for cheating interim ground-connecting-wall specifically includes following construction procedure in conjunction with shown in Fig. 7~14:
Step 1: removing one layer of basement (B1) interim ground-connecting-wall 11, as shown in Figure 7 and Figure 8；
Step 2: closing one level beam of basement, floor slab back casting band, then remove the interim ground-connecting-wall 11 of subcellar,
As shown in Figure 9 and Figure 10；
Step 3: closing two level beam of basement, floor slab back casting band, then remove three layers of basement interim ground-connecting-wall 11,
As is illustrated by figs. 11 and 12；
Step 4: closing basement tri-layer beam, floor slab back casting band, then remove four layers of basement interim ground-connecting-wall 11,
As shown in Figure 13 and Figure 14；
Step 5: interim ground-connecting-wall 11 is removed to 12 bed course of sole plate, the 13 lower part 300mm of foundation pit, backfills element soil and ram
It is real, it then constructs and bottom cushion and improves waterproof layer, steel plate for sealing water 121, rubber water-proof item 122 finally closes sole plate 12,
The dismounting of interim ground-connecting-wall is completed, as illustrated in figures 3-6.
The interim ground-connecting-wall Demolition Construction method of the present invention first uses and from top to bottom successively removes provisionally connecting for each floor
Wall, and the beam slab post-cast strip of floor is corresponded in the interim ground-connecting-wall rear enclosed for removing each floor；Then, sole plate is being removed
When the interim ground-connecting-wall of position, remove using by interim ground-connecting-wall bottom to the bottom soil body below sole plate bottom cushion
It is interior, and sole plate is reduced in the rigidity for the bottom structure for provisionally connecting wall displacement by backfill, to reduce basic bottom
Plate ensure that the complete of sole plate while guaranteeing basis and operation safety because of bottom plate drawing crack caused by differential settlement
Property, it is therefore prevented that underground water leakage.
It is described the invention in detail above in conjunction with accompanying drawings and embodiments, those skilled in the art can basis
Above description makes many variations example to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention,
The present invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (7)
1. a kind of interim ground-connecting-wall Demolition Construction method, which is characterized in that comprising steps of
It removes in the bottom soil body below interim ground-connecting-wall to sole plate bottom cushion, is corresponded in being formed in the bottom soil body
The refill spaces of depth；
In waterproof layer is arranged in the refill spaces, the waterproof layer is completely laid on the refill spaces and extends to sole plate bottom
The upper surface of portion's bed course；
The bottom soil body is backfilled to sole plate bottom cushion；
Fill up sole plate bottom cushion；
Close sole plate.
2. interim ground-connecting-wall Demolition Construction method as described in claim 1, which is characterized in that remove interim ground-connecting-wall to basis
Before in bottom soil body below bottom base plate bed course, further includes: the interim ground-connecting-wall of each floor is from top to bottom successively removed, and
The beam slab post-cast strip of floor is corresponded in the interim ground-connecting-wall rear enclosed for removing each floor.
3. ground-connecting-wall Demolition Construction method as described in claim 1 interim, it is characterised in that: the interim ground-connecting-wall remove to
200mm~400mm below sole plate bottom cushion.
4. interim ground-connecting-wall Demolition Construction method as claimed in claim 3, it is characterised in that: using strong with the bottom soil body
It spends the consistent soil body and backfills the refill spaces to the lower surface of sole plate bottom cushion.
5. interim ground-connecting-wall Demolition Construction method as described in claim 1, it is characterised in that: when closing sole plate, in
Waterproof construction is set in closure seam.
6. interim ground-connecting-wall Demolition Construction method as claimed in claim 5, it is characterised in that: the waterproof construction includes sealing
Steel plate and/or rubber water-proof item.
7. interim ground-connecting-wall Demolition Construction method as described in claim 1, it is characterised in that: the sole plate is foundation pit bottom
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610580185.7A CN106088146B (en) | 2016-07-22 | 2016-07-22 | A kind of interim ground-connecting-wall Demolition Construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610580185.7A CN106088146B (en) | 2016-07-22 | 2016-07-22 | A kind of interim ground-connecting-wall Demolition Construction method |
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| Publication Number | Publication Date |
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| CN106088146A CN106088146A (en) | 2016-11-09 |
| CN106088146B true CN106088146B (en) | 2018-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610580185.7A Active CN106088146B (en) | 2016-07-22 | 2016-07-22 | A kind of interim ground-connecting-wall Demolition Construction method |
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| CN115404904A (en) * | 2022-06-23 | 2022-11-29 | 中国建筑第八工程局有限公司 | Underground diaphragm wall chamber-divided type dismantling construction method adjacent to subway foundation pit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012211439A (en) * | 2011-03-30 | 2012-11-01 | Taisei Corp | Construction method for underground structure, and pile head structure of temporary intermediate pile |
| CN105002913A (en) * | 2015-08-06 | 2015-10-28 | 中铁隆工程集团有限公司 | Strongly-permeable stratum deep foundation pit bottom sealing water stopping structure and construction method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5517615B2 (en) * | 2007-06-22 | 2014-06-11 | 電気化学工業株式会社 | Semiconductor wafer grinding method and resin composition and protective sheet used therefor |
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- 2016-07-22 CN CN201610580185.7A patent/CN106088146B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012211439A (en) * | 2011-03-30 | 2012-11-01 | Taisei Corp | Construction method for underground structure, and pile head structure of temporary intermediate pile |
| CN105002913A (en) * | 2015-08-06 | 2015-10-28 | 中铁隆工程集团有限公司 | Strongly-permeable stratum deep foundation pit bottom sealing water stopping structure and construction method thereof |
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| CN106088146A (en) | 2016-11-09 |
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