CN102561316A - Construction method for diaphragm walls - Google Patents
Construction method for diaphragm walls Download PDFInfo
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- CN102561316A CN102561316A CN201210017921XA CN201210017921A CN102561316A CN 102561316 A CN102561316 A CN 102561316A CN 201210017921X A CN201210017921X A CN 201210017921XA CN 201210017921 A CN201210017921 A CN 201210017921A CN 102561316 A CN102561316 A CN 102561316A
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Abstract
The invention discloses a construction method for diaphragm walls. The method comprises the following construction steps of: constructing guide walls for the diaphragm walls; excavating trench sections after completing the guide walls for the diaphragm walls, and using slurry retaining walls; machining steel reinforcement cages section by section; cleaning sediment at the bottom of the trenches after excavating the trench sections; suspending the machined steel reinforcement cages into the excavated trench sections section by section sequentially; and concreting, and completing the construction of the diaphragm walls. According to the construction method, the shapes of the guide walls for the diaphragm walls are fully used, the corner trenching quality is ensured, the steel reinforcement cages are machined section by section, the rigidity of the steel reinforcement cages is reduced, the difficulty that the steel reinforcement cages are suspended into the trenches is reduced, the construction difficulty is reduced, the construction quality is ensured, and the construction progress is accelerated.
Description
Technical field
The present invention relates to a kind of ground-connecting-wall job practices, relate in particular to for the ground-connecting-wall degree of depth deeply, thickness is bigger, the ground-connecting-wall job practices that the reinforcing cage ratio of rigidity is bigger.
Background technology
The especially special-shaped ground-connecting-wall of ground-connecting-wall (like " Z " shape ground-connecting-wall, " T " shape ground-connecting-wall) construction according to design size; Construction case in conjunction with existing " Z " shape ground-connecting-wall; Shown in Fig. 1-4, ground-connecting-wall is led suitably outer the putting of wall 10 widen certain size, generally do not do further outer putting and widen (like Fig. 1) but ground-connecting-wall is led wall 10 corners; Adopt mud off then, utilize the shoveling of various grooving machinery to form groove section 11 (like Fig. 2); Processing view picture reinforcing cage 12 (like Fig. 3) on platform lift view picture reinforcing cage 12 groove inlet sections 11 interior, concretings simultaneously, accomplish the construction (like Fig. 4) of " Z " shape ground-connecting-wall 13.On the one hand, the corner that this job practices is led wall 10 to ground-connecting-wall is not done and is widened processing, can not guarantee corner end soil body verticality or cave in because of other reasons produces, necking down causes that the soil body invades, thereby cause that reinforcing cage transfers difficulty; On the other hand, this job practices adopts view picture processing to reinforcing cage, and view picture reinforcing cage 12 rigidity are bigger; The reinforcing cage of particularly ultra dark, ultra wide, rigid joint (such as the I shape steel plate for sealing water); In the lifting process, produce the distortion back and be difficult to recover again, put into the groove difficulty will cause under, can only take reinforcing cage hung out and redress the groove section or fall processing such as the measure of putting or cut off reinforcing cage by force; Have a strong impact on the ground-connecting-wall construction quality, also have a strong impact on construction speed.Therefore for ground-connecting-wall, especially special-shaped ground-connecting-wall is necessary to propose a kind of new job practices.
Summary of the invention
Existence in view of the prior art problem; The present invention discloses a kind of ground-connecting-wall job practices; Through put widened section outside the corner construction of leading wall at ground-connecting-wall, with the reinforcing cage segmental machining, put into groove down respectively, guaranteed that ground-connecting-wall leads the cell wall quality of wall corner, reduced reinforcing cage rigidity, reduced reinforcing cage and transfer difficulty.
For realizing above-mentioned technique effect, the present invention provides a kind of ground-connecting-wall job practices, and this method comprises following construction sequence:
Lead wall according to designing requirement construction ground-connecting-wall;
After ground-connecting-wall to be accomplished was led wall, the box cut section adopted mud off;
The segmental machining reinforcing cage;
After groove section excavation is accomplished, cleaning bottom land sediment;
The reinforcing cage segmentation that machines is hung successively in the groove section of excavation completion;
Concreting is accomplished the ground-connecting-wall construction.
Further, described construction ground-connecting-wall is led the wall step and is also comprised: outside ground-connecting-wall is led the construction of wall angle position, put widened section.
Further, the said outer width of putting widened section is 600mm.
Further, said processing reinforcing cage step also comprises: the reinforcing cage segmentation that machines is hung successively in the groove section of excavation completion, reserve a spacing between the reinforcing cage of said segmentation.
Further, the spacing of reserving between the reinforcing cage of said segmentation is less than 150mm.
Ground-connecting-wall job practices of the present invention can make full use of ground-connecting-wall and lead the wall shape; Guarantee that ground-connecting-wall leads wall corner grooving quality, the reinforcing cage segmentation is processed, reduced the rigidity of reinforcing cage; Having reduced reinforcing cage hangs into the groove difficulty; Reduce difficulty of construction greatly, guaranteed construction quality, accelerated construction speed.
Description of drawings
Fig. 1 leads the structural representation of wall for existing " Z " shape ground-connecting-wall;
Fig. 2 leads the structural representation that wall excavates out the groove section for " Z " shape ground-connecting-wall of Fig. 1;
Fig. 3 is the structural representation of existing " Z " shape reinforcing cage;
Fig. 4 hangs the structural representation after the groove section of Fig. 2 for existing " Z " shape reinforcing cage;
Fig. 5 is the structural representation that the present invention " Z " shape ground-connecting-wall is led wall;
Fig. 6 leads the structural representation that wall excavates out the groove section for " Z " shape ground-connecting-wall of Fig. 5;
Fig. 7 is the structural representation that the present invention " Z " shape reinforcing cage is divided into two " L " shape reinforcing cages;
Fig. 8 is the part-structure sketch map of the termination backfill of the present invention " Z " shape ground-connecting-wall, body of wall concreting;
Fig. 9 is the structural representation after the present invention " Z " shape reinforcing cage hangs the groove section of Fig. 6.
The specific embodiment
For the benefit of to the understanding of ground-connecting-wall job practices of the present invention, further specify the present invention below in conjunction with accompanying drawing 5-9 and with " Z " shape ground-connecting-wall as an embodiment, the concrete steps of the method for this " Z " shape ground-connecting-wall of construction are following:
As shown in Figure 5; At first lead wall 21 according to designing requirement size normal construction " Z " shape ground-connecting-wall; Outside " Z " shape ground-connecting-wall is led 4 sections of wall 21 corners constructions, put widened section 211, this outer width L1 of putting widened section 2 11 surpasses about design width 600mm, so that during the groover excavation soil body; Can thoroughly excavate " Z " shape ground-connecting-wall and lead the soil body of wall 21 corners, assurance " Z " shape ground-connecting-wall is led the soil body of wall 21 corners and is not invaded in the groove section of designing requirement.
Then adopt groover or other mechanical equivalent of light excavation to form a groove section 22 (like Fig. 6), mud off is corrected the cell wall verticality at any time; Open-width headed by " if Z " shape ground-connecting-wall; The tip lengths of each groove section 22 is dug to the designing requirement degree of depth than the big approximately 200mm of design length, removes the bottom land sediment.
The present invention adopts segmental machining " Z " shape reinforcing cage; It is indeformable in lifting " Z " shape reinforcing cage process so can to make " Z " shape ground-connecting-wall lead wall 21; Reduce the difficulty of putting into groove down, in addition, according to the designing requirement size and combine field condition; The spacing of " Z " shape reinforcing cage of said segmentation preferably is controlled in the 150mm; " Z " shape reinforcing cage is made moulding on moulding bed, the processing platform planeness is less than 8mm, can make " Z " shape reinforcing cage of segmentation in groove section 22 these FX, have one regulate self-position cushion space.As shown in Figure 7; Can " Z " shape reinforcing cage 23 be divided into two (or a plurality of) " L " shape reinforcing cages 231,232 processes; Two " L " shape reinforcing cage 231,232 spacing L2 are 150mm; Such one " L " shape reinforcing cage 231 hangs in the groove inlet section 22; Another " L " shape reinforcing cage 232 just can be in remaining space (150mm that comprises spacing L2) according to self size adjustment position, or hang two " L " shape reinforcing cages simultaneously and also can avoid touching mutually each other influencing construction quality in 231,232 o'clock because of the existence of spacing L2.
As shown in Figure 9; 231,232 segmentations of two " L " shape reinforcing cages are hung in the groove section 22 of excavation completion; If open-width headed by the groove section 22,, groove section termination 221 employing joint casees or 24 shutoff of sand bag are transferred the concreting conduit after tight ins conjunction with shown in Figure 8; Remove bottom land sediment after-pouring walls concrete once more, accomplish the construction of the present invention " Z " shape ground-connecting-wall 20.
The job practices of " Z " of the present invention shape ground-connecting-wall 20; It is at first through leading the outer widened section 211 of putting of wall 21 corners construction to " Z " shape ground-connecting-wall; Solve " Z " shape ground-connecting-wall and lead wall 21 corner grooving quality; And with " Z " shape reinforcing cage 23 segmental machining, segmentation is transferred in the groove inlet section 22 successively, and the spacing of " L " shape reinforcing cage of segmentation is controlled in the 150mm.It is excessive that such working design has reduced reinforcing cage rigidity, and distortion post-equalization difficulty is put into problems such as groove difficulty down, has reduced difficulty of construction, has improved efficiency of construction, has guaranteed construction quality, has accelerated construction speed.
Claims (5)
1. ground-connecting-wall job practices is characterized in that this method comprises following construction sequence:
Lead wall according to designing requirement construction ground-connecting-wall;
After ground-connecting-wall to be accomplished was led wall, the box cut section adopted mud off;
The segmental machining reinforcing cage;
After said groove section excavation is accomplished, cleaning bottom land sediment;
The reinforcing cage segmentation that machines is hung successively in the groove section of excavation completion;
Concreting is accomplished the ground-connecting-wall construction.
2. ground-connecting-wall job practices according to claim 1 is characterized in that described construction ground-connecting-wall leads the wall step and also comprise: outside ground-connecting-wall is led the construction of wall angle position, put widened section.
3. ground-connecting-wall job practices according to claim 2 is characterized in that the said outer width of putting widened section is 600mm.
4. ground-connecting-wall job practices according to claim 1 is characterized in that said segmental machining reinforcing cage step also comprises: the reinforcing cage segmentation that machines is hung successively in the groove section of excavation completion, reserve a spacing between the reinforcing cage of said segmentation.
5. ground-connecting-wall job practices according to claim 4, the spacing that it is characterized in that reserving between the reinforcing cage of said segmentation is less than 150mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210017921XA CN102561316A (en) | 2012-01-20 | 2012-01-20 | Construction method for diaphragm walls |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210017921XA CN102561316A (en) | 2012-01-20 | 2012-01-20 | Construction method for diaphragm walls |
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| CN102561316A true CN102561316A (en) | 2012-07-11 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981859A (en) * | 2014-06-05 | 2014-08-13 | 北京住总集团有限责任公司 | Node structure of guide walls of underground diaphragm wall and ground under heavy load and construction method thereof |
| CN104499489A (en) * | 2013-06-14 | 2015-04-08 | 孔志坚 | Foundation pit construction method |
| CN107724380A (en) * | 2016-08-11 | 2018-02-23 | 中国二十冶集团有限公司 | The construction of guide wall method of diaphragm wall on heavy grade place |
| CN107956220A (en) * | 2017-11-23 | 2018-04-24 | 上海建科工程咨询有限公司 | A kind of prefabricated construction method for diaphragm walls based on TRD grooving |
| CN110172965A (en) * | 2019-06-04 | 2019-08-27 | 江苏中南建筑产业集团有限责任公司 | Diaphram wall steel bar segmentation formula constructing device and construction method |
| CN110387874A (en) * | 2019-07-30 | 2019-10-29 | 杭州江润科技有限公司 | Diaphram wall and construction method |
| CN112922028A (en) * | 2021-02-02 | 2021-06-08 | 中铁四局集团有限公司 | Construction method suitable for oversized circular subway station |
| CN113006046A (en) * | 2021-02-24 | 2021-06-22 | 中建八局轨道交通建设有限公司 | Underground diaphragm wall drilling and grooving construction method |
| CN113814336A (en) * | 2021-09-27 | 2021-12-21 | 中铁二十四局集团有限公司 | Integral processing method of underground diaphragm wall Z-shaped steel reinforcement cage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06264437A (en) * | 1993-03-10 | 1994-09-20 | Taisei Corp | Construction of continuous wall in underground |
| CN1143703A (en) * | 1996-08-02 | 1997-02-26 | 北京乾坤基础工程有限公司 | 3 in 1 underground continuous wall and construction method thereof |
| JP2009007810A (en) * | 2007-06-27 | 2009-01-15 | Ohbayashi Corp | Earth retaining wall structure and method of constructing earth retaining wall structure |
| CN101560767A (en) * | 2009-05-12 | 2009-10-21 | 广东省长大公路工程有限公司 | Method for connecting slotted sections in underground construction of diaphragm wall |
| CN101864764A (en) * | 2010-05-04 | 2010-10-20 | 中交第二航务工程局有限公司 | Retaining wall structure of Y-shaped rock-inlaid trough section of diaphgram wall and trough-forming construction method thereof |
| CN201962688U (en) * | 2010-12-02 | 2011-09-07 | 中交四航局第一工程有限公司 | Diaphram wall wharf pile foundation structure |
-
2012
- 2012-01-20 CN CN201210017921XA patent/CN102561316A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06264437A (en) * | 1993-03-10 | 1994-09-20 | Taisei Corp | Construction of continuous wall in underground |
| CN1143703A (en) * | 1996-08-02 | 1997-02-26 | 北京乾坤基础工程有限公司 | 3 in 1 underground continuous wall and construction method thereof |
| JP2009007810A (en) * | 2007-06-27 | 2009-01-15 | Ohbayashi Corp | Earth retaining wall structure and method of constructing earth retaining wall structure |
| CN101560767A (en) * | 2009-05-12 | 2009-10-21 | 广东省长大公路工程有限公司 | Method for connecting slotted sections in underground construction of diaphragm wall |
| CN101864764A (en) * | 2010-05-04 | 2010-10-20 | 中交第二航务工程局有限公司 | Retaining wall structure of Y-shaped rock-inlaid trough section of diaphgram wall and trough-forming construction method thereof |
| CN201962688U (en) * | 2010-12-02 | 2011-09-07 | 中交四航局第一工程有限公司 | Diaphram wall wharf pile foundation structure |
Non-Patent Citations (4)
| Title |
|---|
| 《西部探矿工程》 20060430 石文艳 "Z"型幅地下连续墙的施工工艺技术问题 第63-65页 1-5 , 第4期 * |
| 叶晨立: "异形幅地下连续墙施工质量控制", 《福建建筑》 * |
| 李东俊: "建筑中异形地下连续墙施工技术探讨", 《广东科技》 * |
| 石文艳: ""Z"型幅地下连续墙的施工工艺技术问题", 《西部探矿工程》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499489A (en) * | 2013-06-14 | 2015-04-08 | 孔志坚 | Foundation pit construction method |
| CN104499489B (en) * | 2013-06-14 | 2017-01-11 | 孔志坚 | Foundation pit construction method |
| CN103981859A (en) * | 2014-06-05 | 2014-08-13 | 北京住总集团有限责任公司 | Node structure of guide walls of underground diaphragm wall and ground under heavy load and construction method thereof |
| CN107724380A (en) * | 2016-08-11 | 2018-02-23 | 中国二十冶集团有限公司 | The construction of guide wall method of diaphragm wall on heavy grade place |
| CN107956220A (en) * | 2017-11-23 | 2018-04-24 | 上海建科工程咨询有限公司 | A kind of prefabricated construction method for diaphragm walls based on TRD grooving |
| CN110172965A (en) * | 2019-06-04 | 2019-08-27 | 江苏中南建筑产业集团有限责任公司 | Diaphram wall steel bar segmentation formula constructing device and construction method |
| CN110172965B (en) * | 2019-06-04 | 2021-08-10 | 江苏中南建筑产业集团有限责任公司 | Sectional construction device and construction method for underground continuous wall reinforcing steel bars |
| CN110387874A (en) * | 2019-07-30 | 2019-10-29 | 杭州江润科技有限公司 | Diaphram wall and construction method |
| CN112922028A (en) * | 2021-02-02 | 2021-06-08 | 中铁四局集团有限公司 | Construction method suitable for oversized circular subway station |
| CN113006046A (en) * | 2021-02-24 | 2021-06-22 | 中建八局轨道交通建设有限公司 | Underground diaphragm wall drilling and grooving construction method |
| CN113814336A (en) * | 2021-09-27 | 2021-12-21 | 中铁二十四局集团有限公司 | Integral processing method of underground diaphragm wall Z-shaped steel reinforcement cage |
| CN113814336B (en) * | 2021-09-27 | 2023-06-23 | 中铁二十四局集团有限公司 | Integral processing method of Z-shaped reinforcement cage of diaphragm wall |
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Application publication date: 20120711 |