CN109577123A - Construction method of strong and over-salt alkaline earth foundation - Google Patents
Construction method of strong and over-salt alkaline earth foundation Download PDFInfo
- Publication number
- CN109577123A CN109577123A CN201811568483.XA CN201811568483A CN109577123A CN 109577123 A CN109577123 A CN 109577123A CN 201811568483 A CN201811568483 A CN 201811568483A CN 109577123 A CN109577123 A CN 109577123A
- Authority
- CN
- China
- Prior art keywords
- antiseepage film
- filling
- strong
- saline
- roadbed filling
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 239000002689 soil Substances 0.000 claims abstract description 21
- 239000003513 alkali Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 238000009966 trimming Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 3
- 239000011780 sodium chloride Substances 0.000 abstract description 3
- 238000009412 basement excavation Methods 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 241001504664 Crossocheilus latius Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a construction method of a strong and over-salt alkaline earth foundation, which comprises the following steps of (1) road groove excavation: (2) paving an anti-seepage film; (3) first roadbed filling; (4) the anti-seepage film is reversely wrapped; (5) and (5) filling the roadbed for the second time. The anti-seepage film is used for wrapping the roadbed filling to form a closed space, so that water and saline alkali in the original soil around the roadbed filling are prevented from permeating into the roadbed filling, and the permeation damage of underground saline water to the roadbed filling is effectively prevented.
Description
Technical field
The present invention relates to a kind of foundation construction methods, and specially one kind is strong, crosses saline-alkali soil foundation construction method.
Background technique
Widely distributed the saline-alkali soil of varying strength, salt ground water therein are filled out by roadbed in China's national territorial area
Material capillary channel slowly infiltrate into roadbed filling at any time, and saline-alkali soil have with temperature reduce volume expansion characteristic, soil in
Containing sulfate amount is more, expands more serious；Before melting from spring late autumn to next year, it makes roadbed generate differential expansion, causes ground
Table pine is swollen to make road surface generate wave, bulge to cracking destruction, to reduce the capacity and level-of-service of road, China is long-term
Since weak, middle intensity saline-alkali soil is concentrated mainly on to the process experience of saline-alkali soil, and to it is strong, cross saline-alkali soil basement process and lack warp
It tests.
Summary of the invention
The purpose of the present invention is to provide one kind by force, crosses saline-alkali soil foundation construction method, to solve the above technical problems.
To achieve the above object, the invention provides the following technical scheme:
One kind is strong, crosses saline-alkali soil foundation construction method, including (1) road slot excavates, and further includes following steps:
(2) antiseepage film is laid with: it is successively paved with antiseepage film in slot bottom and side slope, it is then that adjacent antiseepage film is seamless spliced；
(3) first time roadbed filling: roadbed filling is carried out after the completion of step (2), roadbed filling is filled to original ground
Below；
(4) antiseepage film anti-package: the antiseepage film both ends spliced in step (2) are closed up and are seamlessly connected, make antiseepage film by road
Based filler encloses package；
(5) second of roadbed filling: roadbed filling construction is carried out after the completion of step (4) again and covers antiseepage film.
Preferably, the antiseepage film is composite geo-membrane.
Preferably, every volume antiseepage film is laid with along perpendicular to road direction of travel in the step (2).
Preferably, in the step (1), after the completion of road slot excavates, the slot that satisfies the need carry out it is smooth, roll and slope trimming.
Preferably, in the step (3), " following the method for filling out " is used when roadbed filling fills first layer, i.e., antiseepage film is spread
If covering is filled in time after the completion, positive appliances carries out filling operation on the roadbed filling for filled completion, does not roll directly
Antiseepage film.
Preferably, in the step (3), during roadbed filling, special messenger need to be arranged to adjust antiseepage film in time due to filling
What is occurred upwarps, shifts situation, clears up big partial size sandstone in time.
Preferably, the step (2) is all connected by the way of welding with antiseepage film in step (4).
Preferably, road slot both ends also need arrangement antiseepage film, positioned at the antiseepage film and slot bottom at road slot both ends, side slope it is anti-
Film seamless connection is seeped by roadbed filling sealed envelope.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention wraps up roadbed filling by antiseepage film and forms closure space, separates moisture and salt in the undisturbed soil of periphery
Alkali infiltrates into roadbed filling, effectively completely cuts off saline groundwater and encroaches on the infiltration of roadbed filling.
2, the present invention has that barrier performance is good, intensity is high, acid and alkali-resistance, anticorrosive using composite geo-membrane, and ageing-resistant is excellent
Point.
3, in the present invention, every volume antiseepage film subsequent is closed ground based filler along can be convenient perpendicular to the laying of road direction of travel
Hold together package.
4, in the present invention, after the completion of road slot excavates, the slot that satisfies the need carry out it is smooth, roll and slope trimming, it is ensured that pave
Smooth, the without hindrance block material of welding walking in the flatness and welding process of antiseepage film.
5, the present invention " following the method for filling out " is all used when filling and filling for the first time for the second time, it is ensured that it is filling and
Shi Xing, and antiseepage film will not be destroyed when filling.
6, during roadbed filling of the present invention, arrange what special messenger adjusted that antiseepage film occurs because filling in time upwarp, shift
Situation clears up big partial size sandstone in time, and antiseepage film can be prevented damaged.
7, in the present invention, antiseepage film can guarantee the leakproofness of antiseepage film using being welded to connect.
Detailed description of the invention
Fig. 1 is ground cross-sectional configuration schematic diagram of the present invention；
Fig. 2 is ground longitudinal plane structure schematic diagram of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
One kind is strong referring to FIG. 1-2, crosses saline-alkali soil foundation construction method, includes the following steps:
(1) road slot excavation: carrying out road slot 4 according to design and excavate, and after the completion of road slot 4 excavates, the slot 4 that satisfies the need carries out smooth, stone roller
Pressure and slope trimming；
(2) antiseepage film is laid with: being successively paved with antiseepage film 3 in slot bottom and side slope, every volume antiseepage film 3 is advanced along perpendicular to road
Direction is laid with, then that adjacent antiseepage film 3 is seamless spliced by the way of welding；Antiseepage film 3 is composite geo-membrane；
(3) first time roadbed filling: roadbed filling is carried out after the completion of step (2), roadbed filling 2 is filled to original ground
1 or less；During roadbed filling, it need to arrange what special messenger adjusted that antiseepage film 3 occurs because filling in time upwarp, shift situation, and
The big partial size sandstone of Shi Qingli；When roadbed filling 2 fills first layer use " following the method for filling out ", i.e., antiseepage film 3 be laid with after the completion of and
When covering fill, positive appliances carries out filling operation on the roadbed filling 2 for having filled completion, does not roll antiseepage film 3 directly；
(4) antiseepage film anti-package: 3 both ends of antiseepage film spliced in step (2) are closed up and using seamless company by the way of welding
It connects, encloses antiseepage film 3 by roadbed filling 2 and wrap up；Slot 4 both ends in road also need arrangement antiseepage film, the antiseepage film positioned at 4 both ends of road slot
3 with the seamless connection of antiseepage film 3 of slot bottom, side slope by 2 sealed envelope of roadbed filling；
(5) second of roadbed filling: carrying out roadbed filling construction using " following the method for filling out " again after the completion of step (4) will
Antiseepage film 3 covers.
Claims (8)
1. one kind is strong, crosses saline-alkali soil foundation construction method, including (1) road slot excavates, it is characterised in that: further includes following steps:
(2) antiseepage film is laid with: it is successively paved with antiseepage film in slot bottom and side slope, it is then that adjacent antiseepage film is seamless spliced；
(3) first time roadbed filling: roadbed filling is carried out after the completion of step (2), roadbed filling is filled to original ground；
(4) antiseepage film anti-package: the antiseepage film both ends spliced in step (2) are closed up and are seamlessly connected, fill out antiseepage film by roadbed
Material encloses package；
(5) second of roadbed filling: roadbed filling construction is carried out after the completion of step (4) again and covers antiseepage film.
2. it is according to claim 1 it is a kind of strong, cross saline-alkali soil foundation construction method, it is characterised in that: the antiseepage film is
Composite geo-membrane.
3. one kind according to claim 1 is strong, crosses saline-alkali soil foundation construction method, it is characterised in that: in the step (2)
Every volume antiseepage film is laid with along perpendicular to road direction of travel.
4. one kind according to claim 1 is strong, crosses saline-alkali soil foundation construction method, it is characterised in that: the step (1)
In, after the completion of road slot excavates, the slot that satisfies the need carry out it is smooth, roll and slope trimming.
5. one kind according to claim 1 is strong, crosses saline-alkali soil foundation construction method, it is characterised in that: the step (3)
In, " following the method for filling out " is used when roadbed filling fills first layer, i.e., covering in time is filled after the completion of antiseepage film is laid with, and fills machine
Tool carries out filling operation on the roadbed filling for filled completion, does not roll antiseepage film, roadbed filling in the step (5) directly
When equally use " following the method for filling out ".
6. one kind according to claim 1 is strong, crosses saline-alkali soil foundation construction method, it is characterised in that: the step (3)
In, during roadbed filling, it need to arrange what special messenger adjusted that antiseepage film occurs because filling in time upwarp, shift situation, it is clear in time
Manage big partial size sandstone.
7. it is according to claim 1 it is a kind of strong, cross saline-alkali soil foundation construction method, it is characterised in that: the step (2) and
Antiseepage film is all connected by the way of welding in step (4).
8. one kind according to claim 1 is strong, crosses saline-alkali soil foundation construction method, it is characterised in that: road slot both ends
Also arrangement antiseepage film is needed, is seamlessly connected positioned at the antiseepage film at road slot both ends with the antiseepage film of slot bottom, side slope and seals roadbed filling
Package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568483.XA CN109577123A (en) | 2018-12-21 | 2018-12-21 | Construction method of strong and over-salt alkaline earth foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568483.XA CN109577123A (en) | 2018-12-21 | 2018-12-21 | Construction method of strong and over-salt alkaline earth foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109577123A true CN109577123A (en) | 2019-04-05 |
Family
ID=65930432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811568483.XA Pending CN109577123A (en) | 2018-12-21 | 2018-12-21 | Construction method of strong and over-salt alkaline earth foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109577123A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110714387A (en) * | 2019-11-15 | 2020-01-21 | 上海市市政规划设计研究院有限公司 | Anti-pollution domestic waste incineration slag bituminous pavement structure |
| CN111218862A (en) * | 2020-03-04 | 2020-06-02 | 中铁二院工程集团有限责任公司 | High-speed railway saline soil filler embankment structure and construction method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140771A (en) * | 2011-01-27 | 2011-08-03 | 河南省新开元路桥工程咨询有限公司 | Construction method for processing saline soil roadbed by separation layer |
| CN102953367A (en) * | 2011-08-30 | 2013-03-06 | 中国民航机场建设集团公司 | Saline soil foundation treatment method |
-
2018
- 2018-12-21 CN CN201811568483.XA patent/CN109577123A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140771A (en) * | 2011-01-27 | 2011-08-03 | 河南省新开元路桥工程咨询有限公司 | Construction method for processing saline soil roadbed by separation layer |
| CN102953367A (en) * | 2011-08-30 | 2013-03-06 | 中国民航机场建设集团公司 | Saline soil foundation treatment method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110714387A (en) * | 2019-11-15 | 2020-01-21 | 上海市市政规划设计研究院有限公司 | Anti-pollution domestic waste incineration slag bituminous pavement structure |
| CN111218862A (en) * | 2020-03-04 | 2020-06-02 | 中铁二院工程集团有限责任公司 | High-speed railway saline soil filler embankment structure and construction method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |
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| RJ01 | Rejection of invention patent application after publication |