CN201991009U - Deep foundation pit shoring system using poured slope-supporting piles and anchor ropes - Google Patents

Deep foundation pit shoring system using poured slope-supporting piles and anchor ropes Download PDF

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Publication number
CN201991009U
CN201991009U CN201120008790XU CN201120008790U CN201991009U CN 201991009 U CN201991009 U CN 201991009U CN 201120008790X U CN201120008790X U CN 201120008790XU CN 201120008790 U CN201120008790 U CN 201120008790U CN 201991009 U CN201991009 U CN 201991009U
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China
Prior art keywords
slope protection
anchor
protection pile
cable
row
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Expired - Fee Related
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CN201120008790XU
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Chinese (zh)
Inventor
石会荣
赵长经
张雪娥
田定义
丁新建
陈权林
樊月英
张峰
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SHANXI CONSTRUCTION ENGINEERING GROUP NO 6 CONSTRUCTION ENGINEERING Co Ltd
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SHANXI CONSTRUCTION ENGINEERING GROUP NO 6 CONSTRUCTION ENGINEERING Co Ltd
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Priority to CN201120008790XU priority Critical patent/CN201991009U/en
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Publication of CN201991009U publication Critical patent/CN201991009U/en
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Abstract

The utility model discloses a deep foundation pit shoring system using poured slope-supporting piles and anchor ropes. The shoring system comprises a plurality of poured slope-supporting piles which are constructed and formed along the sideline of the side wall of a deep foundation pit to be excavated before the excavation of the deep foundation pit, multiple rows of anchor ropes which are installed row by row in the vertical direction of the constructed foundation in the process of excavating the deep foundation pit layer by layer, a crown beam which is arranged at the top ends of the poured slope-supporting piles along a closed outer sideline and connects the top ends of all the poured slope-supporting piles into a whole, and a plurality of steel waist beams which are installed on the outer walls of all the poured slope-supporting piles and are in horizontal arrangement, wherein each steel waist beam connects a whole row of anchor ropes into a whole and tightly fixes all the anchor ropes and the poured slope-supporting piles into a whole. The shoring system is simple in structure, reasonable in design, simple in constructing steps, low in investment cost and large in shoring depth and can solve the problems of the conventional double-row-pile shoring system such as complex construction, high cost, inconvenient control over construction process, easy damage to neighboring pipelines, roads, buildings and the like, relatively large construction space and the like.

Description

Deep foundation ditch perfusion slope protection pile adds the cable bolting system
Technical field
The utility model relates to a kind of system of deep foundation pit support, especially relates to a kind of deep foundation ditch perfusion slope protection pile and adds the cable bolting system.
Background technology
Along with the fast development of builing industry, the construction of highrise building and the utilization of the underground space have stimulated the development of deep-foundation pit engineering excavation and support technology.Newly-built highrise building mostly is darker basis and multi-storey basement, and the embedded depth of foundation part reaches more than the 15m, and near its foundation ditch pipeline, road and building is arranged more.During practice of construction,, guarantee that close on pipeline, road and building etc. is without prejudice, the job practices of system of deep foundation pit support has been proposed requirements at the higher level in order to ensure the safety of workmanship and personnel's property.At present, usually use the supporting method of laying double-row pile that deep foundation ditch is carried out supporting, but in the practice of construction process, above-mentioned Double-row Piles Support method and formed support system exist construction sequence complexity, construction cost height, construction process control inconvenience, easily all sides are closed on multiple practical problems such as pipeline, road and building etc. cause damage, construction space is bigger.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, provide a kind of deep foundation ditch perfusion slope protection pile to add the cable bolting system, it is simple in structure, reasonable in design, construction sequence is simple, input cost is low and the supporting degree of depth is big, result of use good, can solve construction sequence complexity, construction cost height, construction process control inconvenience that existing Double-row Piles Support system exists, easily all sides be closed on practical problems such as pipeline, road and building etc. cause damage, construction space is bigger.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of deep foundation ditch perfusion slope protection pile adds the cable bolting system, it is characterized in that: comprise that being laid in the one or more slope protection pile that need on the construction deep-foundation side wall adds the cable bolting system, and each slope protection pile to add the structure of cable bolting system all identical; Described slope protection pile adds the cable bolting system and comprises deep pit digging a plurality of perfusion slope protection pile of the sidewall sideline construction molding of edge need deep pit excavation before, the anchor cable of on construction ground vertical direction, installing by row in many row's deep foundation ditch stage excavation processes, along described closed outer edge be laid in a plurality of perfusion slope protection pile tops and Guan Liang that all perfusion slope protection pile top ends are connected as one and a plurality of lateral walls that are installed in all perfusion slope protection pile on and be level to the steel waist rail of laying, described steel waist rail along described closed outer edge install and its setting height(from bottom) consistent with the setting height(from bottom) of many row's anchor cables, each anchor head of arranging anchor cable all from the steel waist rail consistent with its this row's anchor cable setting height(from bottom) pass and each anchor head on ground tackle all is installed, pad is equipped with the anchor pad between described anchor head and the ground tackle, and each steel waist rail connects as one whole row's anchor cable and all anchor cables are all fastened as one with the perfusion slope protection pile; The quantity of described perfusion slope protection pile is N and N and pours into the side all around that slope protection pile evenly is laid in needs deep pit excavation, the quantity of every row's anchor cable is N-1 and N-1 anchor cable is laid on the same horizontal plane, adjacent two perfusions are laid with m anchor cable from top to bottom between the slope protection pile and m anchor cable is laid on the same vertical curve, and described anchor cable all is laid on the sidewall of institute's deep pit excavation.
Above-mentioned deep foundation ditch perfusion slope protection pile adds the cable bolting system, and it is characterized in that: the angle between described anchor cable and horizontal plane is 10 °~15 °.
Above-mentioned deep foundation ditch perfusion slope protection pile adds the cable bolting system, it is characterized in that: structure and its long be 28m ± 2m all identical of described N described perfusion slope protection pile with size, the stake footpath of described perfusion slope protection pile is 1.80m ± 0.20m for the spacing between 0.80m ± 0.10m and adjacent two the perfusion slope protection pile; The structure of a plurality of described anchor cables and its length all identical with size is 25m ± 2m, and the anchor of described anchor cable is 1.80m ± 0.20m for the spacing between 0.15m ± 0.20m and adjacent two anchor cables directly.
Above-mentioned deep foundation ditch perfusion slope protection pile adds the cable bolting system, and it is characterized in that: described Guan Liang is a reinforced concrete beam.
Above-mentioned deep foundation ditch perfusion slope protection pile adds the cable bolting system, and it is characterized in that: described steel waist rail is for to install the waist rail that combines side by side by two i iron
Above-mentioned deep foundation ditch perfusion slope protection pile adds the cable bolting system, it is characterized in that: the row of described anchor cable counts m=3, wherein the vertical height between the stake top mark height of first row's anchor cable and perfusion slope protection pile is 3.2m ± 0.30m, and the row's spacing between adjacent two row's anchor cables is 4.0m ± 0.40m; The quantity of described steel waist rail is 3.
Above-mentioned deep foundation ditch perfusion slope protection pile adds the cable bolting system, it is characterized in that: also fill up between described ground tackle and the anchor pad correcting wedge is housed.
Above-mentioned deep foundation ditch perfusion slope protection pile adds the cable bolting system, and it is characterized in that: described Guan Liang is a square frame shape.
Above-mentioned deep foundation ditch perfusion slope protection pile adds the cable bolting system, it is characterized in that: a plurality of described anchor cables all are laid in the middle part between adjacent two perfusion slope protection pile.
The utility model compared with prior art has the following advantages:
1, reasonable in design, construction sequence is easy and input cost is low, quality control on construction is easy.
2, the supporting degree of depth is big, and horizontal force resistant is effective.
3, save construction space, the operation place is unrestricted.
4, construction equipment is convenient, simple, and construction noise is low and environment pollution is low.
5, be easy to protection and close on pipeline, road and building.
6, remarkable in economical benefits is compared with DOUBLE-ROW SLOPE PROTECTION PILES and can be economized on the use of funds more than 20%, greatly reduces engineering cost.
7, applied widely, be applicable to that place, the foundation ditch outside is narrow and small, contiguous foundation ditch periphery has bigger building dead load, and can't put the peripheral supporting than deep foundation ditch on slope during excavation.
8; reasonable in design; the utility model pours into the slope protection pile construction earlier; then the slope protection pile end is linked with Guan Liang; make stake stressed even in shoveling and later stage supporting process; along with foundation ditch stage excavation construction anchor cable; one end of anchor cable places on the steel waist rail; the steel waist rail is connected with slope protection pile; the other end is anchored in the foundation soil; prestressed stretch-draw by anchor cable makes little distortion of generation and frictional resistance between anchor cable and surrounding soil; improved the master end pressure of pile body simultaneously, thereby reduced the flexural deformation of perfusion slope protection pile and strengthen protection effect, to guarantee the stability of slope of foundation ditch.
9, have remarkable social benefit, the utility model adopts mechanized, and quick construction is flexible, and speed of application is fast, and the duration is short.Support form belongs to initiatively the reinforcement system with passive double action, passive effect control soil deformation by slope protection pile, apply prestressing force by anchor cable again, can the ACTIVE CONTROL soil deformation, adjust soil body stress state, through both actings in conjunction, stressed effect is improved greatly, thereby has improved the resistance to overturning of the soil body.Result of use is good, and the maximum deformation quantity of deformation observation is only smaller or equal to 20mm.
In sum; the utility model is reasonable in design; construction sequence is simple; input cost is low and the supporting degree of depth is big; result of use is good; its reasonable use land resources; and saved land resources to greatest extent; and bigger working space is provided for follow-up construction; reduced environment pollution simultaneously; protected adjacent line well; road and building; and prolonged its application life; reducing engineering cost; when shortening the duration of a project; can effectively guarantee the Foundation Design safe construction, and the utility model can effectively solve the construction sequence complexity of existing Double-row Piles Support method and the existence of corresponding support system; the construction cost height; construction process control inconvenience; easily all sides are closed on pipeline; road and building etc. cause damage; multiple practical problems such as construction space is bigger.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a laying structure schematic diagram of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural representation of the utility model anchor cable body guiding cap that leading section is installed.
Fig. 4 is the complete structural representation of anchor cable body of the utility model.
Fig. 5 is the mounting structure schematic diagram of the utility model installation anchor cable anchor head.
Description of reference numerals:
1-pours into slope protection pile; The 2-anchor cable; 3-Guan Liang;
4-steel waist rail; The 5-ground tackle; 6-anchor pad;
7-anchor cable body; The free section of 8-; The 9-guiding cap;
The 10-i iron; The 11-correcting wedge.
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, the utility model comprises that being laid in the one or more slope protection pile that need on the construction deep-foundation side wall adds the cable bolting system, and each slope protection pile to add the structure of cable bolting system all identical.Described slope protection pile adds the cable bolting system and comprises deep pit digging a plurality of perfusion slope protection pile 1 of the sidewall sideline construction molding of edge need deep pit excavation before, the anchor cable of on construction ground vertical direction, installing by row in many row's deep foundation ditch stage excavation processes 2, along described closed outer edge be laid in a plurality of perfusion slope protection pile 1 top and hat beam 3 that all perfusion slope protection pile 1 top ends are connected as one and a plurality of lateral walls that are installed in all perfusion slope protection pile 1 on and be level to the steel waist rail of laying 4, described steel waist rail 4 along described closed outer edge install and its setting height(from bottom) consistent with the setting height(from bottom) of many row's anchor cables 2, each anchor head of arranging anchor cable 2 all from the steel waist rail 4 consistent with its these row's anchor cable 2 setting height(from bottom)s pass and each anchor head on ground tackle 5 all is installed, pad is equipped with anchor pad 6 between described anchor head and the ground tackle 5, and each steel waist rail 4 connects as one whole row's anchor cable 2 and all anchor cables 2 are all fastened as one with perfusion slope protection pile 1.The quantity of described perfusion slope protection pile 1 is N and N and pours into the side all around that slope protection pile 1 evenly is laid in needs deep pit excavation, the quantity of every row's anchor cable 2 is N-1 and N-1 anchor cable 2 is laid on the same horizontal plane, adjacent two perfusions are laid with m anchor cable 2 from top to bottom between the slope protection pile 1 and m anchor cable 2 is laid on the same vertical curve, and described anchor cable 2 all is laid on the sidewall of institute's deep pit excavation.
In the present embodiment, the angle between described anchor cable 2 and horizontal plane is 10 °~15 °.
In the present embodiment, a plurality of described anchor cables 2 all are laid in the middle part between adjacent two perfusion slope protection pile 1.During actual the construction, needing the cutting depth of construction deep foundation ditch is 15m ± 2m, structure and its long be 28m ± 2m all identical with size of N described perfusion slope protection pile 1, the stake footpath of described perfusion slope protection pile 1 is 1.80m ± 0.20m for the spacing between 0.80m ± 0.10m and adjacent two the perfusion slope protection pile 1.The structure of a plurality of described anchor cables 2 and its length all identical with size is 25m ± 2m, and the anchor of described anchor cable 2 is 1.80m ± 0.20m for the spacing between 0.15m ± 0.20m and adjacent two anchor cables 2 directly.The row of anchor cable described in the step 12 counts m=3, and wherein the vertical height between the stake top mark height of first row's anchor cable 2 and perfusion slope protection pile 1 is 3.2m ± 0.30m, and the row's spacing between adjacent two row's anchor cables 2 is 4.0m ± 0.40m.The quantity of described steel waist rail 4 is 3.
In the present embodiment, the quantity N=19 of perfusion slope protection pile 1, the quantity of described anchor cable 2 is 3 * 18=54, warm 54 anchor cables 2 are divided into 3 rows from top to bottom and lay.Needing the cutting depth of construction deep foundation ditch is 15m, and the long 28m of being of stake and its footpath of 19 described perfusion slope protection pile 1 are 0.80m, and the spacing between adjacent two perfusion slope protection pile 1 is 1.80m.The length of 54 described anchor cables 2 is 25m, and the anchor of described anchor cable 2 is 1.80m for the spacing between adjacent two anchor cables 2 among 0.15m and each row directly.The row of described anchor cable 2 counts m=3, and wherein the vertical height between the stake top mark height of first row's anchor cable 2 and perfusion slope protection pile 1 is 3.2m, and the row's spacing between adjacent two row's anchor cables 2 is 4.0m.During practice of construction, can carry out corresponding control adjustment to anchor cable 2 and the size and the installation position that pour into slope protection pile 1 according to concrete needs.
During practice of construction, described hat beam 3 is a reinforced concrete beam.Described steel waist rail 4 is for to install the waist rail that combines side by side by two i iron 10
In the present embodiment, also fill up between described ground tackle 5 and the anchor pad 6 correcting wedge 11 is housed.Described hat beam 3 is a square frame shape.
Before reality is carried out installation to anchor cable 2, according to the length and the anchor footpath of installation anchor cable 2, adopt the anchor cable body 7 of steel strand processing and fabricating, and adopt hanging device that the anchor cable body 7 that completes is installed in the anchor hole earlier.Reality is carried out in the processing and making process anchor cable body 7, and should check its quality before the intercepting steel strand, to the use of forbidding of mechanical damage or corrosion is arranged; The intercepting steel strand adopt cutting machine to block, and ban use of electric welding or gas cutting to block.The steel strand cutting length is the thickness of design length, anchor head height, jack length, ground tackle 5 and anchor pad 6 of anchor cable 2 and the summation of tension operation surplus.Under the normal condition, steel strand block surplus 100mm.Subsequently, place the steel strand that cut on the working platform smooth-goingly, on steel strand, put on the stringing ring then by the 2m spacing, simultaneously anchor cable body 7 central authorities with the thin wire colligation fixedly Grouting Pipe (adopting hard plastic tube herein) enroll anchor cable body 7 together, free section 8 adopts the corrugated tube parcel, the termination is sealed with sealing joint strip, and guiding cap 9 on anchor cable body 7 termination point casings should be numbered standby after anchor cable body 7 is finished at last.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.

Claims (9)

1. deep foundation ditch perfusion slope protection pile adds the cable bolting system, it is characterized in that: comprise that being laid in the one or more slope protection pile that need on the construction deep-foundation side wall adds the cable bolting system, and each slope protection pile to add the structure of cable bolting system all identical; Described slope protection pile adds the cable bolting system and comprises deep pit digging a plurality of perfusion slope protection pile (1) of the sidewall sideline construction molding of edge need deep pit excavation before, the anchor cable of on construction ground vertical direction, installing by row in many row's deep foundation ditch stage excavation processes (2), along described closed outer edge be laid in a plurality of perfusion slope protection pile (1) top and Guan Liang (3) that all perfusion slope protection pile (1) top ends are connected as one and a plurality of lateral walls that are installed in all perfusion slope protection pile (1) on and be the steel waist rail (4) of level to laying, described steel waist rail (4) along described closed outer edge install and its setting height(from bottom) consistent with the setting height(from bottom) of many row's anchor cables (2), each anchor head of arranging anchor cable (2) all from the steel waist rail (4) consistent with its this row's anchor cable (2) setting height(from bottom) pass and each anchor head on ground tackle (5) all is installed, pad is equipped with anchor pad (6) between described anchor head and the ground tackle (5), and each steel waist rail (4) connects as one whole row's anchor cable (2) and all anchor cables (2) are all fastened as one with perfusion slope protection pile (1); The quantity of described perfusion slope protection pile (1) is N and N and pours into the side all around that slope protection pile (1) evenly is laid in needs deep pit excavation, the quantity of every row's anchor cable (2) is N-1 and N-1 anchor cable (2) is laid on the same horizontal plane, be laid with m anchor cable (2) from top to bottom between adjacent two perfusions slope protection pile (1) and m anchor cable (2) is laid on the same vertical curve, described anchor cable (2) all is laid on the sidewall of institute's deep pit excavation.
2. add the cable bolting system according to the described deep foundation ditch perfusion of claim 1 slope protection pile, it is characterized in that: the angle between described anchor cable (2) and horizontal plane is 10 °~15 °.
3. add the cable bolting system according to claim 1 or 2 described deep foundation ditch perfusion slope protection pile, it is characterized in that: structure and its long be 28m ± 2m all identical of described N described perfusion slope protection pile (1) with size, the stake footpath of described perfusion slope protection pile (1) is 1.80m ± 0.20m for the spacing between 0.80m ± 0.10m and adjacent two the perfusion slope protection pile (1); The structure of a plurality of described anchor cables (2) and its length all identical with size is 25m ± 2m, and the anchor of described anchor cable (2) is 1.80m ± 0.20m for the spacing between 0.15m ± 0.20m and adjacent two anchor cables (2) directly.
4. add the cable bolting system according to claim 1 or 2 described deep foundation ditch perfusion slope protection pile, it is characterized in that: described Guan Liang (3) is a reinforced concrete beam.
5. add the cable bolting system according to claim 1 or 2 described deep foundation ditch perfusion slope protection pile, it is characterized in that: described steel waist rail (4) is for to install the waist rail that combines side by side by two i iron (10)
6. add the cable bolting system according to the described deep foundation ditch perfusion of claim 3 slope protection pile, it is characterized in that: the row of described anchor cable (2) counts m=3, wherein the vertical height between the stake top mark height of first row's anchor cable (2) and perfusion slope protection pile (1) is 3.2m ± 0.30m, and the row's spacing between adjacent two row's anchor cables (2) is 4.0m ± 0.40m; The quantity of described steel waist rail (4) is 3.
7. add the cable bolting system according to claim 1 or 2 described deep foundation ditch perfusion slope protection pile, it is characterized in that: also fill up between described ground tackle (5) and the anchor pad (6) correcting wedge (11) is housed.
8. add the cable bolting system according to claim 1 or 2 described deep foundation ditch perfusion slope protection pile, it is characterized in that: described Guan Liang (3) is square frame shape.
9. add the cable bolting system according to claim 1 or 2 described deep foundation ditch perfusion slope protection pile, it is characterized in that: a plurality of described anchor cables (2) all are laid in the middle part between adjacent two perfusion slope protection pile (1).
CN201120008790XU 2011-01-12 2011-01-12 Deep foundation pit shoring system using poured slope-supporting piles and anchor ropes Expired - Fee Related CN201991009U (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102409682A (en) * 2011-11-25 2012-04-11 北京市第三建筑工程有限公司 Pre-stressed anchor rod type steel internal support structure of continuous arched slope protection piles and construction method of pre-stressed anchor rod type steel internal support structure
CN102418340A (en) * 2011-10-14 2012-04-18 中煤建筑安装工程公司第七十三工程处 Precise pile-forming construction method for slope protection pile foundation
CN102518135A (en) * 2011-12-29 2012-06-27 标力建设集团有限公司 Foundation pit support construction method combining horizontal rotary jet-grouting soil bolting and bore concrete piles
CN103306289A (en) * 2013-06-28 2013-09-18 中国三冶集团有限公司第一建筑工程公司 Foundation pit piled anchor dado concrete anchor cable top beam structure and construction method thereof
CN109537418A (en) * 2018-12-10 2019-03-29 鄂宇 It crosses and wears construction of the highway building method for supporting

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102418340A (en) * 2011-10-14 2012-04-18 中煤建筑安装工程公司第七十三工程处 Precise pile-forming construction method for slope protection pile foundation
CN102409682A (en) * 2011-11-25 2012-04-11 北京市第三建筑工程有限公司 Pre-stressed anchor rod type steel internal support structure of continuous arched slope protection piles and construction method of pre-stressed anchor rod type steel internal support structure
CN102518135A (en) * 2011-12-29 2012-06-27 标力建设集团有限公司 Foundation pit support construction method combining horizontal rotary jet-grouting soil bolting and bore concrete piles
CN102518135B (en) * 2011-12-29 2015-08-05 标力建设集团有限公司 Horizontal jet grouting soil anchor and castinplace pile Composite Foundation Pit supporting construction engineering method
CN103306289A (en) * 2013-06-28 2013-09-18 中国三冶集团有限公司第一建筑工程公司 Foundation pit piled anchor dado concrete anchor cable top beam structure and construction method thereof
CN103306289B (en) * 2013-06-28 2015-04-22 中国三冶集团有限公司 Foundation pit piled anchor dado concrete anchor cable top beam structure and construction method thereof
CN109537418A (en) * 2018-12-10 2019-03-29 鄂宇 It crosses and wears construction of the highway building method for supporting

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Granted publication date: 20110928

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