CN107130612A - A kind of slopes reinforced construction method - Google Patents
A kind of slopes reinforced construction method Download PDFInfo
- Publication number
- CN107130612A CN107130612A CN201710325983.XA CN201710325983A CN107130612A CN 107130612 A CN107130612 A CN 107130612A CN 201710325983 A CN201710325983 A CN 201710325983A CN 107130612 A CN107130612 A CN 107130612A
- Authority
- CN
- China
- Prior art keywords
- slopes
- strand
- breast boards
- grouser
- former
- 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 22
- 210000000481 Breast Anatomy 0.000 claims abstract description 49
- 230000003014 reinforcing Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 19
- 230000002787 reinforcement Effects 0.000 claims description 18
- 230000002335 preservative Effects 0.000 claims description 7
- 239000003755 preservative agent Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 239000002965 rope Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000003139 buffering Effects 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
-
- 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
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Abstract
The invention discloses a kind of slopes reinforced construction method, former slopes are tamped, not only former slopes can be allowed to provide solid foundation for reinforcing body, former slopes are allowed not allow to be also easy to produce landslide simultaneously, reduction is located at the landslide power suffered by the breast boards of reinforcing body bottom, due to there is the setting of breast boards, so reinforcing body without extending outward, or only need to extend a segment distance of very little, greatly reduce quantities, it also prevent the landslide of reinforcing body, and maintainer can intuitively observe the state of appearance of breast boards very much, landslide phenomenon is found in advance, also breast boards just can be safeguarded in time.And due to there is the setting of connecting strand and grouser, grouser can be allowed to undertake the landslide power of breast boards, it is very firm.The present invention is for the increasing of side slope, reinforcing engineering.
Description
Technical field
The present invention relates to a kind of slopes reinforced construction method.
Background technology
Landfill, thermal power generation factory etc. have the project necessarily polluted, and government often delimit in remote area
Red line, these environment sanitation facilities is arranged far from the place in urban district.These local geological conditions are often more severe, and its surrounding
Substantially all it is mountain region, in order to obtain smooth construction land as much as possible on mountain region, generally requires to carry out mountain region side slope
Processing, eminence is excavated by certain ratio of slope slope, and lower is backfilled by certain ratio of slope.Wherein, what difficulty was larger is to backfill side
The consolidation process on slope, according to traditional reinforcing mode, it is necessary to carry out slope by certain ratio of slope to embankment side slope, but is due to have
The limitation of land red-line, it is impossible to which unconfined slope is carried out to slopes, it should which supporting and retaining system measure is set at red line.This patent is
A kind of slopes ruggedized construction being arranged near deep embankment side slope red line.
The content of the invention
The technical problem to be solved in the present invention is：There is provided a kind of quantities small slope reinforcement construction method.
The present invention solve its technical problem solution be：
A kind of slopes reinforced construction method, including former slopes,
Comprise the following steps：
A) driven pile is embedded on the ground in the outside of former slopes, grouser is embedded in former slopes, made on driven pile
Make breast boards, the upper end of grouser, which is provided with connecting hole, the correspondence position of breast boards, is again provided with connecting hole；
B) it is used for reinforcement material and the compacting for constructing reinforcing body in the domatic region landfill between breast boards of former slopes,
Connecting hole is embedded in the lower section of reinforcement material；
C) groove is excavated between the connecting hole of grouser and the connecting hole of breast boards；
D) connecting hole of grouser and breast boards is connected with connecting strand so that grouser and breast boards are tensioned with connecting strand to be connected
Connect, connecting strand is located in the groove that step c) is excavated；
E) groove excavated in step c) is backfilled with reinforcement material, and continues landfill reinforcement material and tamps.
As the further improvement of such scheme, the outside or inner side of breast boards are positioned apart from several and enclosed from top to bottom
Beam, circumferential direction extension of the grit along breast boards.
As the further improvement of such scheme, former slopes are sequentially provided with several grappling groups along along the direction of its girth,
Each grappling group corresponds to a driven pile respectively, and incline direction of each grappling group along former slopes is sequentially provided with least two grapplings
Grouser in stake, same grappling group, completes embedment, or step a) is repeated to step e) and in each step in step b)
Suddenly a) it is embedded to a grouser.
As the further improvement of such scheme, connecting strand is tightened up straightly, the bottom in same grappling group
Grouser on the prestressing force of connecting strand that connects it is minimum.
As the further improvement of such scheme, each grappling group includes three grousers, two be arranged above
The prestressing force minimum of connecting strand is equal, is located at the pulling force maximum that uppermost connecting strand can be born.
As the further improvement of such scheme, connecting strand is entangled with hard or soft tubing, and preservative is provided with tubing.
As the further improvement of such scheme, connecting strand includes sleeve pipe and Duo Gen twisted wire groups, and many twisted wire groups are equal
It is located in sleeve pipe, twisted wire group includes many steel wires twisted together, twisted wire group also includes the steel-wire armoring by the strand together
Preservative is provided with inner sleeve firmly, inner sleeve.
As the further improvement of such scheme, the reinforcing body in step b) includes multiple back-up coats, each back-up coat it
Between be equipped with GSZ, after subordinate's back-up coat is compacted, cover one layer of GSZ, then landfill reinforcement material, Ran Houzai
Compacting.
As the further improvement of such scheme, 0.5 meter directly over connecting strand can not cover GSZ.
The beneficial effects of the invention are as follows：A kind of slopes reinforced construction method, former slopes are tamped, and can not only allow former slopes
Solid foundation is provided for reinforcing body, while allowing former slopes not allow to be also easy to produce landslide, the breast boards for being located at reinforcing body bottom is reduced
Suffered landslide power, due to there is the setting of breast boards, so reinforcing body is without slope outward, or only need to one section of slope away from
From, quantities is greatly reduced, the landslide of reinforcing body is also prevent, and maintainer can intuitively observe breast boards very much
State of appearance, in advance find landslide phenomenon, also breast boards just can be safeguarded in time.And due to having connecting strand and grappling
The setting of stake, can allow grouser to undertake the landslide power of breast boards, very firm.The present invention is for large area and big height
Embankment slope project.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present invention, rather than is all implemented
Example, those skilled in the art on the premise of not paying creative work, can also obtain other designs according to these accompanying drawings
Scheme and accompanying drawing.
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the breast boards structure schematic top plan view of the embodiment of the present invention；
Fig. 3 is the breast boards structure schematic front view of the embodiment of the present invention；
Fig. 4 is the connecting strand structural representation of the embodiment of the present invention；
Fig. 5 is the twisted wire group structural representation of the embodiment of the present invention.
Embodiment
The technique effect of the design of the present invention, concrete structure and generation is carried out below with reference to embodiment and accompanying drawing clear
Chu, it is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of embodiment, rather than whole embodiments, based on embodiments of the invention, those skilled in the art is not paying
The other embodiment obtained on the premise of creative work, belongs to the scope of protection of the invention.In addition, be previously mentioned in text
All connection/annexations, not singly refer to component and directly connect, and refer to be added deduct by adding according to specific implementation situation
Few couple auxiliary, to constitute more excellent draw bail.Each technical characteristic in the invention, in not conflicting conflict
Under the premise of can be with combination of interactions.
Referring to figs. 1 to Fig. 5, this is the anchor pole attachment structure embodiment of the present invention, specifically：
A kind of slopes reinforced construction method, including former slopes 1,
Comprise the following steps：
A) driven pile 22 is embedded on the ground in the outside of former slopes 1, grouser 31 is embedded in former slopes 1, is being buried
Breast boards 21 is made in stake 22, the upper end of grouser 31, which is provided with connecting hole, the correspondence position of breast boards 21, is again provided with connection
Hole；
B) the region landfill between the domatic and breast boards 21 of former slopes 1 is used for the reinforcement material and rammer for constructing reinforcing body
Real, connecting hole is embedded in the lower section of reinforcement material；
C) groove is excavated between the connecting hole of the connecting hole of grouser 31 and breast boards 21；
D) connecting hole of grouser 31 and breast boards 21 is connected with connecting strand 32 so that grouser 31 and the company of breast boards 21
The tensioning connection of rope 32 is connect, connecting strand 32 is located in the groove that step c) is excavated；
E) groove excavated in step c) is backfilled with reinforcement material, and continues landfill reinforcement material and tamps.
Former slopes are tamped, the line of slope 12 of former slopes is as illustrated, not only can allow former slopes to provide heavily fortified point for reinforcing body
Real basis, while allowing former slopes not allow to be also easy to produce landslide, reduces the landslide power being located at suffered by the breast boards of reinforcing body bottom, by
In the setting for having breast boards, so reinforcing body is without slope, or only need to a segment distance of slope outward, land red-line 13 can
To press close to very much retaining wall, quantities is greatly reduced, the landslide of reinforcing body is also prevent, and maintainer can be very directly perceived
The state of appearance of breast boards is observed on ground, and landslide phenomenon is found in advance, also breast boards just can be safeguarded in time.And due to having
The setting of connecting strand and grouser, can allow grouser to undertake the landslide power of breast boards, very firm.And first landfill reinforces material
Material excavates to set the form of construction work of connecting strand again, it can be ensured that the reinforcement material of connecting strand surrounding will not be loose.
In order to improve the intensity of breast boards, the outside or inner side of breast boards 21 are positioned apart from several grits from top to bottom
23, circumferential direction extension of the grit 23 along breast boards 21.And when making breast boards, lengthen driven pile or driven pile is reserved
One section basic as the making of breast boards on ground, so equivalent to the reinforcement knot for having breast boards to have both direction in length and breadth
Structure, can so save material.
In order to be able to which anchor can securely be held breast boards, if former slopes 1 are sequentially provided with along along the direction of its girth
Dry grappling group, each grappling group corresponds to a driven pile 22 respectively, and incline direction of each grappling group along former slopes 1 is set successively
There is the grouser 31 at least two grousers 31, same grappling group, embedment is completed in step a), or step a) is repeated
A grouser 31 is embedded to step e) and in each step a).Two connecting strands one on the other can allow breast boards stress to be put down
Weighing apparatus.
Connecting strand 32 is tightened up straightly, because during construction is ongoing, the stress of the lower end of breast boards
It can become big, so the prestressing force of the connecting strand 32 connected on the grouser 31 of the bottom in same grappling group is minimum.
In order to allow breast boards stress balance, each grappling group includes three grousers 31, two companies being arranged above
The prestressing force minimum for connecing rope 32 is equal, is located at the pulling force maximum that uppermost connecting strand 32 can be born.
In order to protect connecting strand not injured in construction, it is ensured that when in use will not be by soil, rainwater in connecting strand
Erosion and get rusty, connecting strand 32 is entangled with soft tubing, can so offset certain pressure, can also be played to constructing, invading
Collapse forces play in the function of buffering, tubing and are perfused with preservative caused by scoring.The preservative includes the grease of paste, than
Such as butter.It is of course also possible to be entangled connecting strand with hard tubing, so a hard shell can be provided to connecting strand, prevented
Only weigh wounded.
The connecting strand 32 of the present embodiment includes sleeve pipe 321 and Duo Gen twisted wires group 324, and many twisted wire groups are each provided at sleeve pipe
In 321, twisted wire group includes many steel wires 322 twisted together, and twisted wire group also includes 322 sets of the steel wire by the strand together
Preservative is perfused with inner sleeve 323 firmly, inner sleeve 323.Even if so one twisted wire group is broken, other are yet had
Twisted wire group ensure slopes safety.
For ease of constructing, allowing the reinforcing body that reinforcing body is not easy in the phenomenon for occurring coming down, step b) to include multiple reinforce
GSZ (shown in figure chain lines) is equipped between layer, each back-up coat, after subordinate's back-up coat is compacted, one layer of soil is covered
Work grid, then landfill reinforcement material, then tamps again.
In order to cause damage when preventing from tamping each back-up coat to connecting strand, 0.5 meter of the surface of connecting strand 32 can not
Cover GSZ.
The better embodiment to the present invention is illustrated above, but the invention is not limited to the implementation
Example, those skilled in the art can also make a variety of equivalent modifications or replace on the premise of without prejudice to spirit of the invention
Change, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (9)
1. a kind of slopes reinforced construction method, including former slopes (1), it is characterised in that：
Comprise the following steps：
A) driven pile (22) is embedded on the ground in the outside of former slopes (1), grouser (31) is embedded in former slopes (1),
Breast boards (21) is made on driven pile (22), the upper end of grouser (31) is provided with connecting hole, the correspondence position of breast boards (21)
It is again provided with connecting hole；
B) the region landfill between the domatic and breast boards (21) of former slopes (1) is used for the reinforcement material and rammer for constructing reinforcing body
Real, connecting hole is embedded in the lower section of reinforcement material；
C) groove is excavated between the connecting hole of the connecting hole of grouser (31) and breast boards (21)；
D) with connecting strand (32) connection grouser (31) and the connecting hole of breast boards (21) so that grouser (31) and breast boards
(21) with connecting strand (32) tensioning connection, connecting strand (32) is located in the groove that step c) is excavated；
E) groove excavated in step c) is backfilled with reinforcement material, and continues landfill reinforcement material and tamps.
2. a kind of slopes reinforced construction method according to claim 1, it is characterised in that：The outside or interior of breast boards (21)
Side is positioned apart from several grits (23), circumferential direction extension of the grit (23) along breast boards (21) from top to bottom.
3. a kind of slopes reinforced construction method according to claim 1, it is characterised in that：Former slopes (1) are along its girth
Several grappling groups are sequentially provided with direction, each grappling group corresponds to a driven pile (22), each former slope in grappling group edge respectively
The incline direction of body (1) is sequentially provided with the grouser (31) at least two grousers (31), same grappling group, in step a)
Embedment is completed, or step a) is repeated to step e) and a grouser (31) is embedded in each step a).
4. a kind of slopes reinforced construction method according to claim 3, it is characterised in that：Connecting strand (32) quilt straightly
Tense, the prestressing force of the connecting strand (32) connected on the grouser (31) of the bottom in same grappling group is minimum.
5. a kind of slopes reinforced construction method according to claim 4, it is characterised in that：Each grappling group includes three
Grouser (31), the prestressing force minimum for two connecting strands (32) being arranged above is equal, is located at uppermost connecting strand (32)
The pulling force that can be born is maximum.
6. a kind of slopes reinforced construction method according to claim 1, it is characterised in that：Connecting strand (32) hard or soft
Matter tubing is entangled, and preservative is provided with tubing.
7. a kind of slopes reinforced construction method according to claim 6, it is characterised in that：Connecting strand (32) includes sleeve pipe
(321) and many twisted wire groups (324), many twisted wire groups (324) are each provided in sleeve pipe (321), and twisted wire group (324) includes
The steel wire (322) of many strands together, twisted wire group (324) also includes the inner sleeve for entangling the steel wire (322) of the strand together
Manage (323), preservative is provided with inner sleeve (323).
8. a kind of slopes reinforced construction method according to claim 1, it is characterised in that：Reinforcing body in step c) includes
GSZ is equipped between multiple back-up coats, each back-up coat, after subordinate's back-up coat is compacted, one layer of GSZ is covered,
Then landfill reinforcement material, then tamps again.
9. a kind of slopes reinforced construction method according to claim 8, it is characterised in that：Directly over connecting strand (32)
0.5 meter can not cover GSZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710325983.XA CN107130612A (en) | 2017-05-10 | 2017-05-10 | A kind of slopes reinforced construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710325983.XA CN107130612A (en) | 2017-05-10 | 2017-05-10 | A kind of slopes reinforced construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107130612A true CN107130612A (en) | 2017-09-05 |
Family
ID=59731545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710325983.XA Pending CN107130612A (en) | 2017-05-10 | 2017-05-10 | A kind of slopes reinforced construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107130612A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332296A (en) * | 2001-08-16 | 2002-01-23 | 吕怀民 | Construction process of retaining wall with inner anchoring wall |
| CN2719917Y (en) * | 2004-07-27 | 2005-08-24 | 柳州欧维姆机械股份有限公司 | Rock-soil adaptive anti-corrosive anchorage cable |
| CN201224889Y (en) * | 2008-06-20 | 2009-04-22 | 云南省公路规划勘察设计院 | High and light type anchoring plate retaining wall in high filling branch block engineering |
| CN201232180Y (en) * | 2008-07-22 | 2009-05-06 | 大连三川建设集团股份有限公司 | Novel sheet-pile wall |
| CN203701141U (en) * | 2013-10-31 | 2014-07-09 | 张胜文 | Retaining wall structure adopting tensile anchor cables or anchor bars with flat and inclined axes |
| CN105525627A (en) * | 2016-01-29 | 2016-04-27 | 中冶集团武汉勘察研究院有限公司 | Two-way anchorage plate retaining wall and construction method thereof |
-
2017
- 2017-05-10 CN CN201710325983.XA patent/CN107130612A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332296A (en) * | 2001-08-16 | 2002-01-23 | 吕怀民 | Construction process of retaining wall with inner anchoring wall |
| CN2719917Y (en) * | 2004-07-27 | 2005-08-24 | 柳州欧维姆机械股份有限公司 | Rock-soil adaptive anti-corrosive anchorage cable |
| CN201224889Y (en) * | 2008-06-20 | 2009-04-22 | 云南省公路规划勘察设计院 | High and light type anchoring plate retaining wall in high filling branch block engineering |
| CN201232180Y (en) * | 2008-07-22 | 2009-05-06 | 大连三川建设集团股份有限公司 | Novel sheet-pile wall |
| CN203701141U (en) * | 2013-10-31 | 2014-07-09 | 张胜文 | Retaining wall structure adopting tensile anchor cables or anchor bars with flat and inclined axes |
| CN105525627A (en) * | 2016-01-29 | 2016-04-27 | 中冶集团武汉勘察研究院有限公司 | Two-way anchorage plate retaining wall and construction method thereof |
Non-Patent Citations (5)
| Title |
|---|
| 《岩土工程手册》编写委员会: "《岩土工程手册》", 31 October 1994, 中国建筑工业出版社 * |
| 张发春: "一种新型高大锚定板挡土墙的设计与施工", 《中外公路》 * |
| 张续萱等: "《新型支挡-锚定板挡土结构的理论与实践》", 31 March 1996, 中国铁道出版社 * |
| 曾令录: "预应力锚拉式桩板挡土墙原型测试分析", 《路基工程》 * |
| 解宝柱等: "《铁路路基》", 29 February 2008, 中国铁道出版社 * |
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Application publication date: 20170905 |