CN102953385A - Construction method for changing support of foundation pit at irregular place of rampway - Google Patents
Construction method for changing support of foundation pit at irregular place of rampway Download PDFInfo
- Publication number
- CN102953385A CN102953385A CN2012105299519A CN201210529951A CN102953385A CN 102953385 A CN102953385 A CN 102953385A CN 2012105299519 A CN2012105299519 A CN 2012105299519A CN 201210529951 A CN201210529951 A CN 201210529951A CN 102953385 A CN102953385 A CN 102953385A
- Authority
- CN
- China
- Prior art keywords
- ramp
- wall
- support
- rampway
- concrete
- 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.)
- Granted
Links
Images
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a construction method for changing a support of a foundation pit at an irregular place of a rampway, and the construction method comprises the following steps of (1) setting supporting piles on the outer circumferential direction of a rampway irregular place, placing an inner support system on the inner side of each supporting pile, and digging a foundation pit; (2) paving a rampway irregular-place soleplate inside the foundation pit, and building an inner wall and an outer wall on two sides of the rampway irregular-place soleplate; (3) backfilling between the supporting piles and the outer wall; (4) respectively binding two ends of a reinforced steel bar of a rampway roof beam with sliding ribs which are reserved on the inner wall and the outer wall; (5) respectively joining two ends of a reinforced steel bar of a support changing beam with the inner wall and the outer wall; (6) pouring the support changing beam concrete; (7) disassembling the inner suppot system; and (8) continuously binding the reinforced steel bar of the rampway roof beam and the reinforced steel bars of the inner wall and the outer wall of the rampway, and then binding the reinforced steel bar of the rampway roof so as to make the reinforced steel bar of the rampway roof connected with the reinforced steel bar of the rampway roof beam and the reinforced steel bars of the inner wall and the outer wall of the rampway; and finally pouring the concrete. Due to the adoption of the method, the support changing system is balanced and stable to stress and sufficient in strength.
Description
Technical field
The present invention relates to a kind of foundation ditch support replacement job practices, relate in particular to the job practices of abnormity place, a kind of ramp foundation ditch support replacement.
Background technology
In the Construction of Deep Foundation of highrise building, the foundation pit supporting project construction period is long, and cost is high, is the emphasis stage of whole engineering.The design form of pattern foundation pit supporting structure is more, but is subjected to the restriction of engineering present position and geological conditions, and not only economy but also applicable support form were often few.At present concrete inner support system requires low, easy construction to be applied in more and more in the engineering of deep foundation pit support because of it to surrounding enviroment, but is subjected to the restriction of foundation ditch support system, engineering construction during to certain position the dismounting of inner support be a necessary process.In the construction of basement car ramp, when the ramp was in the special rotating angle place, stressed complexity just need to be carried out special support replacement technology construction to ramp special rotating angle place, just can carry out the foundation ditch inner support and remove, guarantee ramp construction safety when then carrying out the construction of follow-up ramp.
Learn issued patents by retrieval:
1 application number is that the Chinese patent of CN201010570902.0 discloses " a kind of method of changing support of foundation pit enclosing rib plates ", and the present invention discloses a kind of method of changing support of foundation pit enclosing rib plates, comprises step 1) finish the construction of bracing of foundation pit body of wall; 2) finish the construction of sole plate; 3) along the retaining wall direction, make one perpendicular to the trapezoidal floor of retaining wall, 4 every a segment distance) to construct and enclose purlin, this encloses purlin all floors is coupled together, form wholely, be connected by reserved steel bar or bar planting between trapezoidal floor and retaining wall and sole plate.
2 application numbers are that the Chinese patent of CN201010570914.3 discloses " adopting ring flat-plate to carry out the job practices of base plate of foundation pit support replacement ", the present invention relates to a kind of job practices that adopts ring flat-plate to carry out the base plate of foundation pit support replacement, the steps include: that 1. construct space enclosing structure, support, and cut the earth to the foundation ditch bottom surface; 2. the base section of ring flat-plate, ring beam concrete and central area steel work is poured into a mould in construction; 3. after the concrete strength of ring flat-plate and ring beam reaches requirement, remove the support of base plate top; 4. construction is poured into a mould the base plate of central area and the main body steel work is installed.The method utilizes ring flat-plate and the formed stable force structure of ring beam to carry out the support replacement of base plate, when not yet finishing, the central area base plate can carry out the support replacement of base plate, make the construction period of central area peel off out the cycle from the support replacement of base plate, thereby improve efficiency of construction.
3 application numbers are that the Chinese patent of CN201010597363.X discloses " frame type combined support-replacing system and job practices thereof ", the present invention relates to a kind of frame type combined support-replacing system and job practices thereof, comprise lattice column, support, agent structure, support replacement arranges respectively support replacement below original support, form frame type combination support replacement.Frame type combined support-replacing system is that a kind of newly-built support replacement supports the novel support-replacing system that forms the common resisting structure lateral force of frame type combined support in conjunction with original part.It has utilized original part to support, not only reduced newly-built Construction of Supporting workload, but also saved original supporting removal construction period.
4 application numbers are that the Chinese patent of CN201110321079.4 discloses " the fast support replacing job practices in the deep-foundation pit engineering ", the invention discloses the fast support replacing job practices in a kind of deep-foundation pit engineering, comprise step 1) first support replacement floor is arranged between basement concrete base plate and the foundation pit supporting construction, for the interval arrange a plurality of, the outside of each first support replacement floor is connected with the inboard of foundation pit supporting construction, and the inboard is connected with basement concrete base plate; First support replacement floor and basement concrete base plate are constructed simultaneously, after basement concrete base plate and the form removal of first support replacement floor, remove the most lower one temporary supporting in foundation ditch bottom, the backfill earthwork and compacting between adjacent first support replacement floor; The support replacement floor has two kinds, and the first is horizontal concrete floor, and the second is T shape concrete floor, and the middle riser of T shape concrete floor is vertical with foundation pit supporting construction.The invention also discloses the vertical concrete floor of another kind of employing as the fast support replacing method of support replacement floor.
5 application numbers are that the Chinese patent of CN201210223319.1 discloses " a kind of construction method that utilizes the construction of constructure body structure support replacement ", the present invention relates to a kind of construction method that utilizes the construction of constructure body structure support replacement, this pattern foundation pit supporting structure utilizes the steel supporting component two ends to be supported on respectively on foundation pit supporting pile and the constructure body structure beam slab, steel supporting component one end encloses purlin by steel and links to each other with the structure beam slab with the steel campshed, and adopt at the position, ater-casting, hole and position, ramp arrange the steel work Force transmission parts, thereby foundation ditch is played support action, under this support action, construction foundation pit soldier pile and the agent structure between the structure of having finished.
6 application numbers are that the Chinese patent of CN201120403151.3 discloses " a kind of Quick support changing structure for use of deep foundation ditch ", the utility model discloses a kind of Quick support changing structure for use of deep foundation ditch, comprise the first support changing structure for use, the first support changing structure for use comprises the horizontal support replacement concrete of a plurality of firsts floor that is arranged between basement concrete base plate and the foundation pit supporting construction, the horizontal support replacement concrete of a plurality of firsts floor interval arranges, the outside of the horizontal support replacement concrete of each first floor is connected mutually with the inboard of foundation pit supporting construction, and the inboard is connected mutually with basement concrete base plate; Backfill has the earthwork between the horizontal support replacement concrete of adjacent first floor.
7 application numbers are that the Chinese patent of CN201120402327.3 discloses " a kind of Quick support changing structure for use for super dark super large foundation pit construction ", the utility model discloses a kind of Quick support changing structure for use for super dark super large foundation pit construction, comprise a plurality of vertical support replacement concrete floor that is arranged between basement wallboard and the foundation pit supporting construction, described vertical support replacement concrete floor is vertical with foundation pit supporting construction, a plurality of described vertical support replacement concrete floors interval arranges, the outside of each described vertical support replacement concrete floor is connected with the inboard of foundation pit supporting construction, and the inboard is connected with the basement wallboard; Backfill has the earthwork between adjacent described vertical support replacement concrete floor.
8 application numbers are that the Chinese patent of CN201020531416.3 discloses " foundation ditch support replacement and bracing demolition constructing structure ", a kind of foundation ditch support replacement and bracing demolition constructing structure, water powder spray piling till the foundation ditch inner peripheral, be bored pile in sealing powder spray piling inboard, inboard for holding stake at bored pile, holding a top is cushion cap, cushion cap top is outer wall of basement, the cushion cap inboard is basement bottom board, described bored pile upper end is provided with Guan Liang, hat beam inboard is connected with inner support, this inner support is passed outer wall of basement, be provided with dark beam in the outer wall of basement in the basement floor floor outside, this dark beam outside is provided with the support replacement beam, and these support replacement beam two ends are supported on respectively between bored pile and the dark beam.
Although the 1st ~ 8 patent has a series of advantage, but can not solve in the construction of basement car ramp, when the ramp is in the special rotating angle place, the series of problems such as special rotating angle place, ramp special support replacement technology construction during stressed complexity, remove thereby carry out the foundation ditch inner support, then carry out the construction of follow-up ramp and guarantee the ramp construction safety.
Summary of the invention
The object of the invention is to overcome the deficiency of prior art, abnormity place, a kind of ramp foundation ditch support replacement job practices that provides a kind of stress balance to stablize, have enough intensity, rigidity.
Abnormity place, a kind of ramp of the present invention foundation ditch support replacement job practices, it may further comprise the steps:
(1) set soldier pile in ramp abnormity place excircle direction, then support system in the inboard connection of soldier pile digs foundation ditch;
(2) in described foundation ditch, lay ramp abnormity place's base plate and build the ramp interior wall that is positioned at base plate both sides, abnormity place, ramp and the ramp exterior wall to the bottom elevation position that is higher than ramp top board beam, reserve on the top of ramp interior wall and ramp exterior wall simultaneously and get rid of muscle;
(3) adopt the bar planting mode will arrange each other the beam steel two ends of the support replacement beam of interval setting are connected with described ramp inner, external wall respectively more;
(4) build support replacement beam concrete; The cross section of many row's support replacement beams begins to be gradually to the ramp interior wall from the ramp exterior wall and dwindles;
(5) then backfill first floor backfill between soldier pile and described ramp exterior wall lays first floor plain concrete conversion strip at the top of first floor backfill, fill out the second layer backfill last time in first floor plain concrete conversion strip;
(6) after many row's support replacement beam concrete reach some strength, remove described interior support system;
(7) two ends of the reinforcing bar of ramp top board beam are connected with the muscle colligation of getting rid of reserved on ramp interior wall and the ramp exterior wall respectively;
(8) continue to finish the reinforcing bar binding of ramp inner, external wall short transverse, then the reinforcing bar of colligation ramp top board makes the reinforcing bar of ramp top board link to each other with ramp top board beam steel and ramp inner, external wall reinforcing bar; Build at last the concrete of ramp inner, external wall concrete, ramp top board beam concrete and ramp top board.
Adopt the beneficial effect of the inventive method to be: when constructing at basement car ramp special rotating angle place, the stressed complexity in ramp herein, need to carry out special support replacement technology construction to ramp special rotating angle place, the foundation ditch inner support could be removed guarantee ramp construction safety when then carrying out the construction of follow-up ramp.In order to realize the conversion of whole ramp construction safety and power, support replacement beam steel two ends are connected with described ramp inner, external wall respectively.Consisted of stable support-replacing system.The cross section of described support replacement beam begins to be gradually to the ramp interior wall from the ramp exterior wall and dwindles in addition, and the support replacement beam stress is take axial compression as main, so just the suffered power equalization stable of support replacement beam pass to the ramp interior wall, then pass to the slab column of agent structure.The structure that adds the support replacement beam is steel concrete, has the mechanical characteristic that rigidity is large and distortion is little, and it can guarantee the safety of ramp construction and the communal facilitys such as peripheral adjacent structure, road and underground utilities.Then other backfill first floor backfill between soldier pile and described ramp exterior wall lays first floor plain concrete change-over panel at the top of first floor backfill, fills out the second layer backfill last time in first floor plain concrete conversion strip.Wholely like this consisted of take support replacement beam, backfill, plain concrete conversion strip as main stable support-replacing system.So adopt this method to make the support-replacing system stress balance stablize, have enough intensity, rigidity, guarantee balanced power transmission and the rigidity stability and safety of the support replacement construction at basement car ramp special rotating angle place.
Description of drawings
Fig. 1 is for adopting the scheme of installation of abnormity place, a kind of ramp of the present invention foundation ditch support replacement job practices;
Fig. 2 is for adopting the installation schematic top plan view of abnormity place, a kind of ramp of the present invention foundation ditch support replacement job practices.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done to describe in detail.
The job practices of abnormity place, a kind of ramp of the present invention foundation ditch support replacement as shown in drawings, it may further comprise the steps: (1) sets soldier pile 6 in ramp abnormity place excircle direction, at soldier pile support system 5 in 6 inboard connections, then digs foundation ditch; (2) in described foundation ditch, lay abnormity place, ramp base plate 1 and build the ramp interior wall 2-2 that is positioned at base plate both sides, abnormity place, ramp and ramp exterior wall 2-1 to the bottom elevation position that is higher than ramp top board beam 4, reserve on the top of ramp interior wall 2-2 and ramp exterior wall 2-1 simultaneously and get rid of muscle; (3) adopt the bar planting mode will arrange each other the beam steel two ends of the support replacement beam 3 of interval setting are connected with described ramp inner, external wall respectively more; (4) build support replacement beam 3 concrete; The cross sections of many row's support replacement beams 3 begin to be gradually to ramp interior wall 2-2 from ramp exterior wall 2-1 and dwindle; (5) backfill first floor backfill between soldier pile 6 and described ramp exterior wall 2-1, then lay first floor plain concrete conversion strip at the top of first floor backfill, fill out the second layer backfill last time in first floor plain concrete conversion strip, generally arrive nature ground and get final product.(6) after support replacement beam 3 concrete reach some strength, remove the interior support system 5 at abnormity place, ramp; (7) the muscle colligation of getting rid of of reserving being connected with ramp interior wall 2-2 respectively in the two ends of the reinforcing bar of ramp top board beam 4 with ramp exterior wall 2-1 is connected; (8) continue to finish the reinforcing bar binding of ramp inner, external wall short transverse, then the reinforcing bar of colligation ramp top board makes the reinforcing bar of ramp top board link to each other with ramp top board beam steel and ramp inner, external wall reinforcing bar; Build at last the concrete of ramp inner, external wall concrete, ramp top board beam concrete and ramp top board.
(1) set soldier pile 6 in ramp abnormity place excircle direction, then support system 5 in soldier pile 6 inboard connections digs foundation ditch; (2) in described foundation ditch, lay abnormity place, ramp base plate 1 and build the ramp interior wall 2-2 that is positioned at base plate both sides, abnormity place, ramp and ramp exterior wall 2-1 to the bottom elevation position that is higher than ramp top board beam 4, reserve on the top of ramp interior wall 2-2 and ramp exterior wall 2-1 simultaneously and get rid of muscle; (3) adopt the bar planting mode will arrange each other the beam steel two ends of the support replacement beam 3 of interval setting are connected with described ramp inner, external wall respectively more; (4) build support replacement beam 3 concrete; The cross sections of many row's support replacement beams 3 begin to be gradually to ramp interior wall 2-2 from ramp exterior wall 2-1 and dwindle; (5) backfill first floor backfill between soldier pile 6 and described ramp exterior wall 2-1, then lay first floor plain concrete conversion strip at the top of first floor backfill, fill out the second layer backfill last time in first floor plain concrete conversion strip, generally arrive nature ground and get final product.(6) after support replacement beam 3 concrete reach some strength, remove the interior support system 5 at abnormity place, ramp; (7) the muscle colligation of getting rid of of reserving being connected with ramp interior wall 2-2 respectively in the two ends of the reinforcing bar of ramp top board beam 4 with ramp exterior wall 2-1 is connected; (8) continue to finish the reinforcing bar binding of ramp inner, external wall short transverse, then the reinforcing bar of colligation ramp top board makes the reinforcing bar of ramp top board link to each other with ramp top board beam steel and ramp inner, external wall reinforcing bar; Build at last the concrete of ramp inner, external wall concrete, ramp top board beam concrete and ramp top board;
Use abnormity place, ramp foundation ditch support replacement construction system stress balance to stablize, have enough intensity, rigidity through the scene.
Claims (1)
1. a ramp abnormity is located foundation ditch support replacement job practices, it is characterized in that it may further comprise the steps:
(1) set soldier pile in ramp abnormity place excircle direction, then support system in the inboard connection of soldier pile digs foundation ditch;
(2) in described foundation ditch, lay ramp abnormity place's base plate and build the ramp interior wall that is positioned at base plate both sides, abnormity place, ramp and the ramp exterior wall to the bottom elevation position that is higher than ramp top board beam, reserve on the top of ramp interior wall and ramp exterior wall simultaneously and get rid of muscle;
(3) adopt the bar planting mode will arrange each other the beam steel two ends of the support replacement beam of interval setting are connected with described ramp inner, external wall respectively more;
(4) build support replacement beam concrete; The cross section of many row's support replacement beams begins to be gradually to the ramp interior wall from the ramp exterior wall and dwindles;
(5) then backfill first floor backfill between soldier pile and described ramp exterior wall lays first floor plain concrete conversion strip at the top of first floor backfill, fill out the second layer backfill last time in first floor plain concrete conversion strip;
(6) after many row's support replacement beam concrete reach some strength, remove described interior support system;
(7) two ends of the reinforcing bar of ramp top board beam are connected with the muscle colligation of getting rid of reserved on ramp interior wall and the ramp exterior wall respectively;
(8) continue to finish the reinforcing bar binding of ramp inner, external wall short transverse, then the reinforcing bar of colligation ramp top board makes the reinforcing bar of ramp top board link to each other with ramp top board beam steel and ramp inner, external wall reinforcing bar; Build at last the concrete of ramp inner, external wall concrete, ramp top board beam concrete and ramp top board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210529951.9A CN102953385B (en) | 2012-12-07 | 2012-12-07 | Construction method for changing support of foundation pit at irregular place of rampway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210529951.9A CN102953385B (en) | 2012-12-07 | 2012-12-07 | Construction method for changing support of foundation pit at irregular place of rampway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102953385A true CN102953385A (en) | 2013-03-06 |
| CN102953385B CN102953385B (en) | 2014-08-06 |
Family
ID=47762727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210529951.9A Expired - Fee Related CN102953385B (en) | 2012-12-07 | 2012-12-07 | Construction method for changing support of foundation pit at irregular place of rampway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102953385B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727324A (en) * | 2015-03-20 | 2015-06-24 | 朱奎 | Support construction method of irregular basement |
| CN105332380A (en) * | 2015-11-16 | 2016-02-17 | 上海建工五建集团有限公司 | Strut changing structure and method for underground building |
| CN105863330A (en) * | 2016-05-25 | 2016-08-17 | 上海建工建集团有限公司 | Sequential construction method for car ramps in reverse construction method |
| CN109989406A (en) * | 2017-12-30 | 2019-07-09 | 广州协安建设工程有限公司 | Foundation pit support replacement construction |
| CN112726624A (en) * | 2020-12-15 | 2021-04-30 | 上海建工集团股份有限公司 | Efficient excavation construction method for deep foundation pit |
| CN114214890A (en) * | 2021-12-02 | 2022-03-22 | 中冶天工集团天津有限公司 | Construction method for anti-settlement bracket of construction ramp after backfilling soil foundation outside underground garage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11131475A (en) * | 1997-10-30 | 1999-05-18 | Taisei Corp | Method of constructing earth retaining timbering |
| CN101666095A (en) * | 2009-09-11 | 2010-03-10 | 朱奎 | Irregular foundation pit support and construction method |
| KR101109520B1 (en) * | 2010-09-03 | 2012-01-31 | 삼정건설 주식회사 | Method for constructing earth retaining wall using steel pipe |
| CN102720201A (en) * | 2012-07-02 | 2012-10-10 | 中建三局第二建设工程有限责任公司 | Support change construction building method implemented by using main structure of building |
-
2012
- 2012-12-07 CN CN201210529951.9A patent/CN102953385B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11131475A (en) * | 1997-10-30 | 1999-05-18 | Taisei Corp | Method of constructing earth retaining timbering |
| CN101666095A (en) * | 2009-09-11 | 2010-03-10 | 朱奎 | Irregular foundation pit support and construction method |
| KR101109520B1 (en) * | 2010-09-03 | 2012-01-31 | 삼정건설 주식회사 | Method for constructing earth retaining wall using steel pipe |
| CN102720201A (en) * | 2012-07-02 | 2012-10-10 | 中建三局第二建设工程有限责任公司 | Support change construction building method implemented by using main structure of building |
Non-Patent Citations (1)
| Title |
|---|
| 徐卫国: "建筑深基坑安全支护工程换撑设计与施工", 《广东建材》, no. 7, 31 July 2008 (2008-07-31) * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727324A (en) * | 2015-03-20 | 2015-06-24 | 朱奎 | Support construction method of irregular basement |
| CN104727324B (en) * | 2015-03-20 | 2016-08-03 | 朱奎 | Irregular basement construction method for supporting |
| CN105332380A (en) * | 2015-11-16 | 2016-02-17 | 上海建工五建集团有限公司 | Strut changing structure and method for underground building |
| CN105332380B (en) * | 2015-11-16 | 2017-04-12 | 上海建工五建集团有限公司 | Strut changing structure and method for underground building |
| CN105863330A (en) * | 2016-05-25 | 2016-08-17 | 上海建工建集团有限公司 | Sequential construction method for car ramps in reverse construction method |
| CN109989406A (en) * | 2017-12-30 | 2019-07-09 | 广州协安建设工程有限公司 | Foundation pit support replacement construction |
| CN109989406B (en) * | 2017-12-30 | 2020-10-20 | 广州协安建设工程有限公司 | Foundation pit support replacing construction method |
| CN112726624A (en) * | 2020-12-15 | 2021-04-30 | 上海建工集团股份有限公司 | Efficient excavation construction method for deep foundation pit |
| CN114214890A (en) * | 2021-12-02 | 2022-03-22 | 中冶天工集团天津有限公司 | Construction method for anti-settlement bracket of construction ramp after backfilling soil foundation outside underground garage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102953385B (en) | 2014-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103437567B (en) | Method for supporting existing building underground added storey through original pile foundations | |
| CN101914925B (en) | Basement by using optimized composite prefabricated arch wall as external wall | |
| CN102953385B (en) | Construction method for changing support of foundation pit at irregular place of rampway | |
| CN104453274B (en) | Utilize supporting and protection structure and underpinning structure to support existing building underground and increase layer method | |
| CN104032744B (en) | Support replacement construction method in the engineering of group hole | |
| CN104563130B (en) | A kind of cross fender post and the double construction method doing agent structure of space enclosing structure | |
| CN101418569B (en) | Optimization complex arch wall combining prefabricated arch leaf, support and major structure | |
| CN101509261B (en) | Method for pile plate base for ultra-high voltage electric power line steel tower on soft foundation | |
| CN201296994Y (en) | Multifunctional precast arch piece | |
| CN104878835A (en) | Strip-shaped foundation house rear basement structure | |
| CN210598987U (en) | Subway station based on single-layer four-guide-hole and middle-guide-hole inner pile foundation | |
| CN106013241A (en) | Crown beam foundation trench upright construction and cover-excavation method station combination structural system and construction method | |
| CN102031785A (en) | Foundation pit supporting technique for replacing temporary enclosing purlin by using plate belt of permanent structure | |
| CN103103988A (en) | Foundation ditch construction method of horizontal bracing structure of central island floor slaps | |
| CN104594361A (en) | Construction method of H-shaped enclosure pile and enclosure structure as main structure | |
| CN107604924B (en) | Construction method for protecting subway by excavation of foundation pit of bridge bearing platform | |
| CN103015432B (en) | Construction method for changing steel pipe supports of ramp foundation pit | |
| CN104532856A (en) | Fabricated lattice unit for foundation pit supporting and installation method | |
| CN209855277U (en) | Conversion layer structure for underground added layer of existing building | |
| CN106164380A (en) | Wind-driven generator fabricated base | |
| CN202925552U (en) | Foundation pit steel pipe brace replacing and construction structure for ramp | |
| CN202925551U (en) | Foundation pit brace replacing and construction structure at irregular place of ramp | |
| CN103122642A (en) | Construction method of vertical post support change | |
| CN202730796U (en) | Existing retaining wall rib plate type unloading reinforcing structure | |
| CN110004942A (en) | A kind of large span integral supporting structure and its construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20161207 |