CN1097227A - Flat lattice type ring-beam supporting method - Google Patents
Flat lattice type ring-beam supporting method Download PDFInfo
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- CN1097227A CN1097227A CN 93107791 CN93107791A CN1097227A CN 1097227 A CN1097227 A CN 1097227A CN 93107791 CN93107791 CN 93107791 CN 93107791 A CN93107791 A CN 93107791A CN 1097227 A CN1097227 A CN 1097227A
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- foundation ditch
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Abstract
In foundation ditch lagging pile inner ring or outer ring, be horizontally disposed with lattice supporting ring beam, lattice supporting ring beam comprises ring beam and reinforced concrete truss or two kinds of structural forms of steel web member, lattice supporting ring beam can be arranged on and absolute altitude places such as lagging pile fist pile cap, perhaps be arranged on other suitable degree of depth of foundation ditch, by the pile cover beam or directly support lagging pile, the multiple compound mode of the inventive method can adapt to various construction environments, do not closed on the influence of building and underground installation, and widely applicable.According to statistical computation, adopt this method, the required expense of foundation ditch retaining wall only accounts for 20% of anchor pole technology, and its economic benefit is very remarkable.
Description
The invention belongs to the lagging pile method of support of building engineering construction method, particularly deep foundation pit construction.
In the deep foundation pit construction, particularly under weak soil base condition, lagging pile is because the conference of carrying soil pressure produces distortion, the influence construction.The measure of taking at present has two kinds, first steel sheet pile formula guard wall, and it is with high costs, and construction finishes the back recovery operation and also bothers; It two is to adopt soil bolt, and with many skew-buried anchor pole stay bolts location of lagging pile with the foundation ditch peripheral hardware, engineering cost is very high, and it is also long to make the duration.
The objective of the invention is to propose a kind of new lagging pile supporting method, with the purpose that reaches the shortening cycle, reduces cost.
Content of the present invention is to adopt the supporting method of flat lattice type ring-beam, be specially adapted to the deep foundation pit construction of non-disk shape, in foundation ditch lagging pile inner ring or outer ring, be horizontally disposed with lattice supporting ring beam, lattice supporting ring beam comprises ring beam reinforced concrete truss or two kinds of structural forms of steel web member, lattice supporting ring beam can be arranged on and absolute altitude places such as lagging pile fist pile cap, perhaps be arranged on other suitable degree of depth of foundation ditch, by the pile cover beam or directly support lagging pile, step is set is of lattice supporting ring beam, earlier design the flat shape of supporting ring beam and the layout position of truss or steel web member according to foundation ditch flat shape and ambient conditions, when after the lagging pile construction finishes, beginning from foundation ditch, to fetch earth, first floor lattice type ring-beam with absolute altitudes such as clay model making and fist pile caps begins the foundation ditch earth excavation then.Flat lattice type ring-beam can be the circular reinforced concrete circle beam of the inscribe of square foundation ditch, between cap or lagging pile and ring beam sub-truss is set in four jiaos of foundation ditches.Plane lattice or ring beam can be square foundation ditch circumscribed circle shaped steel reinforced concrete ring beams, between the circular arc ring beam between each contact and foundation ditch lagging pile or its cap with welding, rivet, be spirally connected or other connecting mode being established the supporting pull bar.Flat lattice type ring-beam can be that square foundation ditch arch angle intersection inner support is drawn reinforced concrete circle beam outward, the lagging pile that side hole is four jiaos or its cap at foundation ditch interior angle place by linearly support ring beam bearing diagonal, and in the middle of peripheral four limits of its fulcrum place foundation ditch partly by the dome-shaped ring beam by ring beam and this lagging pile or its cap between with welding, rivet, be spirally connected or the pull bar stay bolt of other connecting mode setting.Flat lattice type ring-beam can be a rectangle foundation ditch inscribe inside support ring beam, adopt two semicircle inscribe ring beam truss support at the foundation ditch both ends, partly lagging pile or its cap are supported by the linear ring beam with its one by one or many brace summers between the semicircle point of contact on the long limits of foundation ditch two; The soldier pile that vertical support can be arranged below the suitable place of or many brace summers is to keep the horizontal support state of supporting pile.Plane lattice or ring beam can be the outer arch ring beams of symmetry or asymmetric stairstepping foundation ditch inner support, support with linear bearing diagonal ring beam between foundation ditch lagging pile or its cap interior angle both sides, foundation ditch long leg part lagging pile or its cap pass through the pull bar stay bolt with trapezoidal arch or cycloidal arch.
The present invention utilizes dome-shaped and the big characteristics of triangle ring beam bearing pressure, the single-pile stress of various non-circular foundation ditch lagging piles cooperated with dome-shaped or triangle ring beam by sub-truss or pull bar change annulus beam or gusseted beam stress into, be convenient to construction with the technical scheme that easy method replaces steel sheet-pile wall commonly used at present or soil bolt the inventive method to propose, with low cost.
The embodiment of the inventive method is as shown in drawings:
Fig. 1 is an inscribed circle ring beam method of support schematic diagram.
Fig. 2 is a circumscribed circle ring beam method of support schematic diagram.
Fig. 3 is an intersection ring beam method of support schematic diagram.
Fig. 4 is inscribe, inside support ring beam method of support schematic diagram.
Fig. 5 is inner support, outer arch ring beam method of support schematic diagram.
Fig. 6 is absolute altitude sectional schematic diagrams such as ring beam and cap.
Fig. 7 is that ring beam and cap do not wait the absolute altitude sectional schematic diagram.
Number in the figure is respectively:
1. dome-shaped ring beam, 2. truss, 3. pull bar, 4. in the bearing diagonal beam, 5. brace summer, 6. soldier pile, 7. trapezoidal arched girder, 8. lagging pile, 9. lagging pile cap, 10. ring beam section, 11. lagging pile cap sections, 12. foundation ditches.
Accompanying drawing is specified the present invention in conjunction with the embodiments:
The inventive method has five kinds of basic embodiment, and five kinds of modes can make up the lagging pile supporting problem that solves the various forms foundation ditch according to this.
Fig. 1 side of being foundation ditch inscribed circle ring beam method, except that tangent part ring beam 1 directly supports the foundation ditch lagging pile 8, four bight part lagging piles or its cap adopt the bearing pressure of four jiaos of lagging piles 8 of truss 2 transition foundation ditches to give ring beam 1 in the foundation ditch.
Fig. 2 side of being foundation ditch circumscribed circle ring beam method, the pull bar 3 between four jiaos of tip nodes of foundation ditch lagging pile 8 caps 9 and the adjacent contact between circular arch ring beam and foundation ditch cap can pass to circumscribed circle ring beam 1 with the pressure of carrying on the lagging pile 8.
Fig. 3 intersects the ring beam supporting method, and the bearing diagonal beam 4 that square foundation ditch four bight parts are adopted constitutes stable gusseted with cap 9 each angles, and all the other partly adopt the circular arch ring beam cap 9, by pull bar 3 bearing pressures.
Fig. 4 is an inscribe inside support ring beam supporting method, and the semicircle of similar Fig. 1 in two ends of rectangular foundation ditch partly adopts inscribed circle ring beam 1 to cooperate the suffered pressure of sub-truss 2 carrying lagging piles 8.Can establish brace summer 5 bearing pressures between the parallel long side ring beam, under the big brace summer of span, soldier pile 6 can be set.The method of Fig. 4 can change and is used for cross foundation ditch or quincuncial pile shape foundation ditch, triangle foundation ditch or the like.
Fig. 5 is the another mode of cross support ring beam supporting method, be applicable to polygon symmetry or asymmetric trapezoidal foundation ditch, bearing diagonal beam 4 constituted stable triangle with cap 9 in the foundation ditch interior angle was partly adopted, the pressure that the carrying lagging pile transmits, can adopt the dome-shaped ring beam to draw at foundation ditch long leg branch and protect, also can adopt the pressure of trapezoidal arch 7 as shown in Figure 5 by the long limit of pull bar 3 carryings cap 9 as Fig. 2, shown in Figure 3.
Fig. 6, Fig. 7 are two kinds of selections that ring beam is provided with absolute altitude.Absolute altitudes such as ring beam wherein shown in Figure 6 and cap; Ring beam shown in Figure 7 and cap do not wait absolute altitude, can go deep in the foundation ditch.
The inventive method implementation step is very simple and easy to do, after having determined foundation ditch 12 ring beam shapes, beats lagging pile 8 earlier, utilizes ground to make the box board of cap 9 on the face of land, carries out the reinforced concrete construction of cap 9 on the spot.If ring beam 1 and cap 9 absolute altitudes such as grade then carry out the construction of cap, ring beam and truss or pull bar simultaneously.When brace summer 5 is arranged, optionally earlier beat soldier pile, carry out brace summer 5 constructions again, make cap, ring beam, brace summer that good whole be arranged.If the not contour timestamp of ring beam and cap relies on the floor manufacture box board to carry out ring beam steel concrete and truss when can the Horizon in foundation ditch digging respective depth, the isostructure construction of brace summer again.And then it is native to continue to deep-cut the hole.
The inventive method is compared with the soil bolt method of present use, can save large quantities of steel, easy construction, but reduction of erection time, and can ensure the quality of products. The multiple combination mode of the inventive method can adapt to various construction environments, is not subjected to the impact of Nearby Structure and underground installation, and widely applicable. According to statistical computation, adopt the method, the required expense of foundation ditch retaining wall only accounts for 20% of anchor pole technology, and its economic benefit is very remarkable.
Claims (7)
1, a kind of fixed buildings deep foundation ditch lagging pile adopts the supporting method of flat lattice type ring-beam, be specially adapted to the deep foundation pit construction of non-garden flat shape, it is characterized in that: in foundation ditch lagging pile inner ring or outer ring, be horizontally disposed with lattice supporting ring beam, lattice supporting ring beam comprises ring beam and reinforced concrete truss or two kinds of structural forms of steel web member, lattice supporting ring beam can be arranged on and absolute altitude places such as lagging pile fist pile cap, perhaps be arranged on other suitable degree of depth of foundation ditch, by the pile cover beam or directly support lagging pile, step is set is of lattice supporting ring beam, earlier design the flat shape of supporting ring beam and the layout position of truss or steel web member according to foundation ditch flat shape and ambient conditions, when after the lagging pile construction finishes, beginning from foundation ditch, to fetch earth, first floor lattice type ring-beam with absolute altitudes such as clay model making and fist pile caps begins the foundation ditch earth excavation then.
2, flat lattice type ring-beam supporting method as claimed in claim 1 is characterized in that flat lattice type ring-beam is the circular reinforced concrete circle beam of inscribe of square foundation ditch, between cap or lagging pile and ring beam sub-truss is set in four jiaos of foundation ditches.
3, flat lattice type ring-beam supporting method as claimed in claim 1, it is characterized in that flat lattice type ring-beam is square foundation ditch circumscribed circle shaped steel reinforced concrete ring beam, between the circular arc ring beam between each contact and foundation ditch lagging pile or its cap with welding, rivet, be spirally connected or other connecting mode being established the supporting pull bar.
4, flat lattice type ring-beam supporting method as claimed in claim 1, it is characterized in that flat lattice type ring-beam is that square foundation ditch arch angle intersection inner support is drawn reinforced concrete circle beam outward, the lagging pile that side hole is four jiaos or its cap at the interior angle place by linearly support ring beam bearing diagonal, and in the middle of peripheral four limits of its fulcrum place foundation ditch partly by the dome-shaped ring beam by ring beam and this lagging pile or its cap between with welding, rivet, be spirally connected or the pull bar stay bolt of other connecting mode setting.
5, flat lattice type ring-beam supporting method as claimed in claim 1, it is characterized in that flat lattice type ring-beam is a rectangle foundation ditch inscribe inside support ring beam, adopt two semicircle inscribe ring beam truss support at the foundation ditch both ends, partly lagging pile or its cap are supported by the linear ring beam with its one by one or many brace summers between the semicircle point of contact on the long limits of foundation ditch two.
6, flat lattice type ring-beam supporting method as claimed in claim 5 is characterized in that the soldier pile of vertical support being arranged to keep the horizontal support state of supporting pile below the suitable place of or many brace summers.
7, flat lattice type ring-beam supporting method as claimed in claim 1, it is characterized in that flat lattice type ring-beam is the outer arch ring beam of symmetry or asymmetric stairstepping foundation ditch inner support, support with linear bearing diagonal ring beam between foundation ditch lagging pile or its cap interior angle both sides, foundation ditch long leg part lagging pile or its cap pass through the pull bar stay bolt with trapezoidal arch or cycloidal arch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93107791 CN1097227A (en) | 1993-07-08 | 1993-07-08 | Flat lattice type ring-beam supporting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93107791 CN1097227A (en) | 1993-07-08 | 1993-07-08 | Flat lattice type ring-beam supporting method |
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| Publication Number | Publication Date |
|---|---|
| CN1097227A true CN1097227A (en) | 1995-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93107791 Pending CN1097227A (en) | 1993-07-08 | 1993-07-08 | Flat lattice type ring-beam supporting method |
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| CN (1) | CN1097227A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824825A (en) * | 2010-05-28 | 2010-09-08 | 天津三建建筑工程有限公司 | Deep foundation pit open cutting construction method |
| CN104563127A (en) * | 2014-12-01 | 2015-04-29 | 南京工业大学 | Novel deep foundation pit supporting structure and construction method thereof |
| CN104695447A (en) * | 2015-03-13 | 2015-06-10 | 朱奎 | Deep basement support |
| CN108487261A (en) * | 2018-04-10 | 2018-09-04 | 江西科技学院 | A kind of arch steel structure support |
| CN108978675A (en) * | 2018-08-23 | 2018-12-11 | 东莞市建筑科学研究所 | Support component, foundation pit outer support system, foundation pit and construction method |
| CN110685283A (en) * | 2019-09-19 | 2020-01-14 | 中国一冶集团有限公司 | Sandbar combined tile type foundation pit supporting structure and construction method thereof |
| CN113006080A (en) * | 2021-02-24 | 2021-06-22 | 中国电建集团华东勘测设计研究院有限公司 | Assembly type arc truss device suitable for single structure deep foundation pit support and construction method |
| NL2031687A (en) * | 2021-07-28 | 2022-06-27 | China Construction First Group South China Corp Co Ltd | Ramp Supporting Structure and Construction Method of Narrow Foundation Pit |
-
1993
- 1993-07-08 CN CN 93107791 patent/CN1097227A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824825A (en) * | 2010-05-28 | 2010-09-08 | 天津三建建筑工程有限公司 | Deep foundation pit open cutting construction method |
| CN104563127A (en) * | 2014-12-01 | 2015-04-29 | 南京工业大学 | Novel deep foundation pit supporting structure and construction method thereof |
| CN104695447A (en) * | 2015-03-13 | 2015-06-10 | 朱奎 | Deep basement support |
| CN104695447B (en) * | 2015-03-13 | 2017-01-25 | 朱奎 | deep basement support |
| CN108487261A (en) * | 2018-04-10 | 2018-09-04 | 江西科技学院 | A kind of arch steel structure support |
| CN108978675A (en) * | 2018-08-23 | 2018-12-11 | 东莞市建筑科学研究所 | Support component, foundation pit outer support system, foundation pit and construction method |
| CN108978675B (en) * | 2018-08-23 | 2023-11-28 | 东莞市建筑科学研究院有限公司 | Support assembly, foundation pit outer support system, foundation pit and construction method |
| CN110685283A (en) * | 2019-09-19 | 2020-01-14 | 中国一冶集团有限公司 | Sandbar combined tile type foundation pit supporting structure and construction method thereof |
| CN110685283B (en) * | 2019-09-19 | 2021-10-01 | 中国一冶集团有限公司 | Sandbar combined tile type foundation pit supporting structure and construction method thereof |
| CN113006080A (en) * | 2021-02-24 | 2021-06-22 | 中国电建集团华东勘测设计研究院有限公司 | Assembly type arc truss device suitable for single structure deep foundation pit support and construction method |
| CN113006080B (en) * | 2021-02-24 | 2022-06-14 | 中国电建集团华东勘测设计研究院有限公司 | Assembly type arc truss device suitable for single structure deep foundation pit support and construction method |
| NL2031687A (en) * | 2021-07-28 | 2022-06-27 | China Construction First Group South China Corp Co Ltd | Ramp Supporting Structure and Construction Method of Narrow Foundation Pit |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |