CN106088146A - 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
- CN106088146A CN106088146A CN201610580185.7A CN201610580185A CN106088146A CN 106088146 A CN106088146 A CN 106088146A CN 201610580185 A CN201610580185 A CN 201610580185A CN 106088146 A CN106088146 A CN 106088146A
- Authority
- CN
- China
- Prior art keywords
- wall
- sole plate
- interim ground
- construction method
- soil body
- 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
- 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 method, including step: remove interim ground-connecting-wall in the bottom soil body below sole plate bottom cushion；Backfill described bottom soil body to sole plate bottom cushion；Fill up sole plate bottom cushion；Close sole plate.The present invention uses and will remove in the bottom soil body to sole plate bottom cushion bottom interim ground-connecting-wall, and reduce the sole plate rigidity at the polycrystalline substance connecting wall displacement provisionally by backfill soil, thus reduce the base plate drawing crack that sole plate causes because of differential settlement, while ensureing basis and job safety, ensure that the integrity of sole plate, it is therefore prevented that subsoil water seepage.
Description
Technical field
The present invention relates to a kind of building field, particularly relate to a kind of interim ground-connecting-wall Demolition Construction method.
Background technology
Coastal Soft Deep Foundation Pit has significantly " tau-effect ", and open-assembly time is the longest, and foundation ditch area is the biggest, and foundation ditch becomes
Shape amount is the biggest.Therefore the methods that many employing point storehouses are implemented in construction, reduce foundation ditch area, and wherein the interim ground-connecting-wall of many employings enters
Row separates.Need to remove interim ground-connecting-wall after interim ground-connecting-wall both sides agent structure goes out foundation ditch.But remove interim ground-connecting-wall
Construction method needs science, rationally, on the premise of ensureing deep pit monitor, it is ensured that the integrity of sole plate.Because connecting provisionally
The vertical elevation that wall is removed directly determines the water penetration on basis, integrity.If removing to sole plate bottom interim ground-connecting-wall
Epithelium, then subsoil water can from the gap of interim ground-connecting-wall and both sides base plate seepage.If interim ground-connecting-wall 21 is removed to basis
Base plate 22 bed course 23 times, the most again construction sole plate 22, as it is shown in figure 1, because sole plate 22 is at interim ground-connecting-wall 21
Position is different from the rigidity of other position sole plate bottom solums 24, therefore sole plate can be caused to draw because of differential settlement
Split, thus cause subsoil water seepage.
Summary of the invention
The technical problem to be solved is to provide a kind of interim ground-connecting-wall Demolition Construction method, it is possible to effectively reduce
Sole plate is connecting the bottom rigidity of wall displacement provisionally, thus reduces the base plate that sole plate causes because of differential settlement and draw
Split.
For realizing above-mentioned technique effect, the invention discloses a kind of interim ground-connecting-wall Demolition Construction method, including step:
Remove interim ground-connecting-wall in the bottom soil body below sole plate bottom cushion；
Backfill described bottom soil body to sole plate bottom cushion；
Fill up sole plate bottom cushion；
Close sole plate.
Described interim ground-connecting-wall Demolition Construction method is further improved by, and removes interim ground-connecting-wall at the bottom of sole plate
Before in bottom soil body below portion's bed course, also include: remove the interim ground-connecting-wall of each floor the most successively, and removing
The beam slab post-cast strip of the interim ground-connecting-wall rear enclosed correspondence floor of each floor.
Described interim ground-connecting-wall Demolition Construction method is further improved by, and described interim ground-connecting-wall was removed to the end, basis
200mm～400mm below plate bottom cushion, forms the refill spaces of the corresponding degree of depth in described bottom soil body.
Described interim ground-connecting-wall Demolition Construction method is further improved by, and also includes before backfilling described bottom soil body
Step: waterproof layer is set in described refill spaces.
Described interim ground-connecting-wall Demolition Construction method is further improved by, and described waterproof layer is completely laid on described backfill sky
Between and extend to the upper surface of sole plate bottom cushion.
Described interim ground-connecting-wall Demolition Construction method is further improved by, and uses consistent with described bottom soil body intensity
The soil body backfill described refill spaces to the lower surface of sole plate bottom cushion.
Described interim ground-connecting-wall Demolition Construction method is further improved by, and when closing sole plate, connects in closing
Seam arranges waterproof construction.
Described interim ground-connecting-wall Demolition Construction method is further improved by, and described waterproof construction includes steel plate for sealing water
And/or rubber water-proof bar.
Described interim ground-connecting-wall Demolition Construction method is further improved by, and sole plate is base plate of foundation pit.
Due to the fact that and have employed above technical scheme so that it is have the advantages that by interim ground-connecting-wall is torn open
Remove in the bottom soil body to sole plate bottom cushion, and reduce sole plate in interim ground-connecting-wall position by backfill soil
The rigidity of the polycrystalline substance put, thus reduce the base plate drawing crack that sole plate causes because of differential settlement, ensureing basis and making
While industry safety, it is ensured that the integrity of sole plate, it is therefore prevented that subsoil water seepage.
Accompanying drawing explanation
Fig. 1 is Demolition Construction figure bottom conventional interim ground-connecting-wall.
Fig. 2 is the construction process figure of the present invention interim ground-connecting-wall Demolition Construction method.
Fig. 3～6 is Demolition Construction schematic diagram bottom interim ground-connecting-wall in the present invention interim ground-connecting-wall Demolition Construction method.
Fig. 7～14 is that in the present invention interim ground-connecting-wall Demolition Construction method, interim ground-connecting-wall is removed above bottom base panel
Construction schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention the present invention is further detailed explanation.
First, refering to shown in Fig. 2～6, a kind of interim ground-connecting-wall Demolition Construction method of the present invention mainly includes construction procedure:
S001: remove in the bottom soil body 14 below interim ground-connecting-wall 11 to sole plate 12 bottom cushion 13, such as Fig. 3 institute
Show；
S002: backfill bottom soil body is to sole plate 12 bottom cushion 13, as shown in Figure 4；
S003: fill up sole plate 12 bottom cushion 13, as shown in Figure 5；
S004: close sole plate 12, as shown in Figure 6.
Wherein, the bottom of interim ground-connecting-wall 11 the most dismountable to about 200mm below sole plate 12 bottom cushion 13～
400mm, preferably 300mm (through repeatedly Check computations, it is contemplated that efficiency of construction, engine request and economic benefit, show this thickness
Can reach preferable construction effect), now, in the bottom soil body 14 below bed course 13, form the refill spaces of the corresponding degree of depth
141。
In step S002: before backfill bottom soil body, further comprise the steps of: the refill spaces 141 formed in bottom soil body 14
Inside arranging waterproof layer (not showing waterproof layer in figure), this waterproof layer can completely be laid on refill spaces 141 and extend to sole plate 12
The upper surface of bottom cushion 13, prevents bed course 13 seepage.
When backfilling the refill spaces 141 of bottom soil body 14, the soil body consistent with bottom soil body 14 intensity is generally used to enter
Row backfill is the most pragmatic, and the backfill soil body is to the lower surface of sole plate 12 bottom cushion 13, to guarantee the sole plate after backfilling
The rigidity of polycrystalline substance consistent, after preventing ground-connecting-wall from removing, sole plate causes differential settlement because bottom rigidity is different,
Thus cause sole plate drawing crack, the problem of subsoil water seepage.
Closing in step S004: when closing sole plate 12, between sole plate and the former sole plate of new construction
Arranging waterproof construction in seam, this waterproof construction can include steel plate for sealing water and/or rubber water-proof bar, in the present embodiment, simultaneously
Have employed steel plate for sealing water 121 and rubber water-proof bar 122, be separately positioned between sole plate and the former sole plate of new construction
In closure seam, to avoid subsoil water seepage at closure seam, waterproof effect is preferable.
A kind of interim ground-connecting-wall Demolition Construction method of the present invention is mainly by removing interim ground-connecting-wall at the bottom of sole plate
In bottom soil body below portion's bed course, and reduce sole plate by backfill soil and connecting the polycrystalline substance of wall displacement provisionally
Rigidity, thus reduce the base plate drawing crack that sole plate causes because of differential settlement, while ensureing basis and job safety, protect
Demonstrate,prove the integrity of sole plate, it is therefore prevented that subsoil water seepage.
A kind of interim ground-connecting-wall Demolition Construction method of the present invention is applicable to the construction of coastal Soft Deep Foundation Pit.Now, basis
Base plate is base plate of foundation pit, and the bottom of base plate of foundation pit is provided with bed course, is bottom soil body below bed course, and the bottom of interim ground-connecting-wall is deeply
In bottom soil body, after interim ground-connecting-wall both sides agent structure goes out foundation ditch, need to remove interim ground-connecting-wall, repair base plate of foundation pit simultaneously
With each floor beam slab.
Below in conjunction with the present invention interim ground-connecting-wall Demolition Construction method, enumerate the base of base plate of foundation pit room located underground five floor
Cheat the overall pulling down arrangement and method for construction of interim ground-connecting-wall, shown in Fig. 7～14, specifically include following construction procedure:
The first step: remove the interim ground-connecting-wall 11 of basement one layer (B1), as shown in Figure 7 and Figure 8；
Second step: close basement one level beam, floor slab back casting band, remove the interim ground-connecting-wall of subcellar 11 subsequently,
As shown in Figure 9 and Figure 10；
3rd step: close basement two level beam, floor slab back casting band, remove the interim ground-connecting-wall 11 of basement three layers subsequently,
As is illustrated by figs. 11 and 12；
4th step: close basement tri-layer beam, floor slab back casting band, remove the interim ground-connecting-wall 11 of basement four layers subsequently,
As shown in Figure 13 and Figure 14；
5th step: interim ground-connecting-wall 11 removes the sole plate 12 bed course 13 bottom 300mm to foundation ditch, backfill element soil also rams
Real, then construction bottom cushion improve waterproof layer, steel plate for sealing water 121, rubber water-proof bar 122, finally close sole plate 12,
Complete the dismounting of interim ground-connecting-wall, as illustrated in figures 3-6.
The present invention interim ground-connecting-wall Demolition Construction method first uses removes connecting provisionally of each floor the most successively
Wall, and in the beam slab post-cast strip of the interim ground-connecting-wall rear enclosed correspondence floor removing each floor；Then, sole plate is being removed
During the interim ground-connecting-wall of position, use and will remove the bottom soil body to sole plate bottom cushion bottom interim ground-connecting-wall
In, and reduce the sole plate rigidity at the polycrystalline substance connecting wall displacement provisionally by backfill soil, thus reduce the end, basis
The base plate drawing crack that plate causes because of differential settlement, while ensureing basis and job safety, it is ensured that sole plate complete
Property, it is therefore prevented that subsoil water seepage.
Being described in detail the present invention above in association with drawings and Examples, those skilled in the art can basis
The present invention is made many variations example by described above.Thus, some details in embodiment should not constitute limitation of the invention,
The present invention by the scope that defines using appended claims as protection scope of the present invention.
Claims (9)
1. an interim ground-connecting-wall Demolition Construction method, it is characterised in that include step:
Remove interim ground-connecting-wall in the bottom soil body below sole plate bottom cushion；
Backfill described bottom soil body to sole plate bottom cushion；
Fill up sole plate bottom cushion；
Close sole plate.
2. interim ground-connecting-wall Demolition Construction method as claimed in claim 1, it is characterised in that remove interim ground-connecting-wall to basis
Before in bottom soil body below base plate bottom cushion, also include: remove the interim ground-connecting-wall of each floor the most successively, and
Beam slab post-cast strip at the interim ground-connecting-wall rear enclosed correspondence floor removing each floor.
3. interim ground-connecting-wall Demolition Construction method as claimed in claim 1, it is characterised in that: described interim ground-connecting-wall is removed extremely
200mm～400mm below sole plate bottom cushion, forms the refill spaces of the corresponding degree of depth in described bottom soil body.
4. interim ground-connecting-wall Demolition Construction method as claimed in claim 3, it is characterised in that before backfilling described bottom soil body
Further comprise the steps of: and waterproof layer is set in described refill spaces.
5. interim ground-connecting-wall Demolition Construction method as claimed in claim 4, it is characterised in that: described waterproof layer is completely laid on described
Refill spaces also extends to the upper surface of sole plate bottom cushion.
6. interim ground-connecting-wall Demolition Construction method as claimed in claim 3, it is characterised in that: use strong with described bottom soil body
Spend the consistent soil body and backfill described refill spaces to the lower surface of sole plate bottom cushion.
7. interim ground-connecting-wall Demolition Construction method as claimed in claim 1, it is characterised in that: when closing sole plate, in
Closure seam arranges waterproof construction.
8. interim ground-connecting-wall Demolition Construction method as claimed in claim 7, it is characterised in that: described waterproof construction includes sealing
Steel plate and/or rubber water-proof bar.
9. interim ground-connecting-wall Demolition Construction method as claimed in claim 1, it is characterised in that: described sole plate is at the bottom of foundation ditch
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106088146A true CN106088146A (en) | 2016-11-09 |
| CN106088146B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (3)
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|---|---|---|---|---|
| KR20100032361A (en) * | 2007-06-22 | 2010-03-25 | 덴끼 가가꾸 고교 가부시키가이샤 | Method for grinding semiconductor wafer, and resin composition and protective sheet used for the method |
| 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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2016
- 2016-07-22 CN CN201610580185.7A patent/CN106088146B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100032361A (en) * | 2007-06-22 | 2010-03-25 | 덴끼 가가꾸 고교 가부시키가이샤 | Method for grinding semiconductor wafer, and resin composition and protective sheet used for the method |
| 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 |
Non-Patent Citations (1)
| Title |
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| 徐伟等: "《建筑工程施工》", 31 August 2013 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
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| CN106088146B (en) | 2018-12-18 |
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