CN105040746A - Frame type isolation protection system and construction method thereof - Google Patents
Frame type isolation protection system and construction method thereof Download PDFInfo
- Publication number
- CN105040746A CN105040746A CN201510532560.6A CN201510532560A CN105040746A CN 105040746 A CN105040746 A CN 105040746A CN 201510532560 A CN201510532560 A CN 201510532560A CN 105040746 A CN105040746 A CN 105040746A
- Authority
- CN
- China
- Prior art keywords
- preformed
- pile
- preformed pile
- wire rope
- frame type
- 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
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a frame type isolation protection system and a construction method thereof. The frame type isolation protection system comprises two rows of precast piles, and the two rows of precast piles are vertically arranged on the two sides of an excavated tunnel respectively. Every two of the precast piles in each row are connected through a first cross support, the upper half segments of every two of the precast piles in each column are connected through a second cross support, every two of the precast piles in each column are connected through a tensioning mechanism, and the lower half segments of every two of the precast piles in each column are tensioned. The frame type isolation protection system and the construction method thereof have the beneficial effects that the isolation protection system is formed by the cross supports and the tensioning mechanisms of the precast piles in the two rows and multiple columns to replace a traditional box culvert, the structure is simple, and construction efficiency is high; the stress states of all the parts are reasonable, and disturbance to surrounding buildings is small; and every two precast files are connected through a steel wire rope in the corresponding tensioning mechanism, the position of the steel wire rope between every two precast files is grouted, and soil cross beams are formed at intervals to support the isolation protection system.
Description
Technical field
The present invention relates to tunnel excavation insulation blocking, particularly a kind of frame type insulation blocking system and construction method thereof.
Background technology
Complicated surrounding enviroment are tunnel excavations, build period inevitable peripheral restraining factors, have bridge pier, architectural complex etc. near such as tunnel.Therefore, tunnel excavation must reduce the disturbance to periphery Important building soil layer, avoids producing large distortion.
Existing technology, mainly by box culvert is constructed in periphery, tunnel, makes it reduce peripheral disturbance.And box culvert many employings diaphragm wall, interlocking pile etc. need break ground more greatly the method for operation, although this makes the impact of tunnel excavation reduce, the additive factor becoming and affect the disturbance of periphery soil layer of breaking ground more greatly of box culvert.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of can substitute existing box culvert, reduce frame type insulation blocking system to the disturbance of periphery Important building soil layer and construction method thereof.
In order to reach above-mentioned purpose, the present invention adopts following technical scheme:
A kind of frame type insulation blocking system, comprises preformed pile, along estimating that tunneling lateral separation is in a row, longitudinal separation setting in column; First stull, is laterally placed in the upper semisection with row's preformed pile and is rigidly connected with preformed pile; Second stull, is longitudinally placed in the upper semisection of same column preformed pile and is rigidly connected with preformed pile; Be provided with for connecting and straining the tensioning mechanism of same column preformed pile between the lower semisection of same column preformed pile; Defined a part for a frame type box culvert by two row's multiple row preformed piles, the first stull and the second stull, then connected the lower semisection of two preformed piles by tensioning mechanism, tensioning mechanism defines the lower support beam of frame type box culvert.
Further, be provided with through hole at the center vertical of every root preformed pile, through hole is used for the setting of wire rope and Grouting Pipe.
Further, tensioning mechanism comprises two fixed pulleys, two fixed pulleys are respectively arranged on the hypomere part of each row two preformed piles, wire rope from the stake top of a preformed pile through the stake top of the through hole of the through hole of this preformed pile, two fixed pulleys and another root preformed pile to another root preformed pile, fixed pulley is used for wire rope when straining, the internal construction of unlikely destruction preformed pile.
Further, wire rope is at the stake top of two preformed piles difference connecting screw rod, and screw rod is fixed on the stake top of preformed pile by nut, by bolt and nut, two free ends of wire rope is fixed on the stake top of preformed pile.
Further, at the bottom of the stake of described preformed pile, be provided with pile top, the lower end of pile top is tapered, is convenient to carry out piling to preformed pile by arranging pile top, and facilitates fixed pulley and be arranged in pile top.
Further, be horizontally disposed with whitewashing passage in described pile top, whitewashing passage communicates with described through hole.By whitewashing passage to the wire rope slip casting between two preformed piles, slurries diffuse to soil layer, wrapped wire rope, play native horizontal beam action, resisted the soil deformation between preformed pile after solidifying.
Further, the described wire rope between each row two preformed piles is enclosed with cement.
The construction method of frame type insulation blocking system, concrete steps are as follows:
1) preformed pile and pile top is made;
2) pile top is fixed on the bottom of preformed pile;
3) with wire rope from the top of a preformed pile through the through hole of this preformed pile, the through hole of another root preformed pile to the stake top of another root preformed pile;
4) fixed by the top of fastener by wire rope;
5) piling is carried out to two preformed piles;
6) repeat step 2)-step 5), formed two row multiple rows preformed pile framework;
7), after piling puts in place, a little soil layer on excavation preformed pile top, connects two preformed piles on same row, connects two preformed piles on same row with the second stull with the first stull;
8) utilize Grouting Pipe and whitewashing passage to the wire rope slip casting between two preformed piles;
9) step 2 is repeated) to step 8).
Further, step 4) in fastener be bolt and nut, screw rod is connected with described wire rope, nut and screw rod fastening.
Further, in described pile top, arrange a fixed pulley, described fixed pulley walked around by described wire rope.
Operating principle of the present invention is: estimating that the both sides in the tunnel that will excavate respectively arrange row's preformed pile, connected by the first stull between the preformed pile of each row, connected by the second stull between the preformed pile of each row, the first stull and the second stull are equivalent to the top rail of frame type insulation blocking system; The hypomere part of upper two preformed piles of each row is strained by wire rope in tensioning mechanism; and by slip casting, slip casting is carried out to the wire rope between two preformed piles; make to form native crossbeam between the hypomere part of upper two preformed piles of each row; be equivalent to the lower transverse beam of frame type insulation blocking system, constitute the insulation blocking system of a frame type.
The invention has the beneficial effects as follows:
1) form insulation blocking system by two row's multiple row preformed pile stulls and tensioning mechanism and replace traditional box culvert, structure is simple, and efficiency of construction is high, and each several part stress is reasonable, and less to the disturbance of surrounding building.
2) connect two preformed piles by the wire rope in tensioning mechanism, and carry out slip casting to the wire rope position place between two preformed piles, gap-forming soil crossbeam plays a supporting role to insulation blocking system.
3) by the first stull of arranging between preformed pile upper portion and the second stull, be equivalent to the top rail of insulation blocking system, effectively prevent the distortion of system.
Accompanying drawing explanation
Fig. 1 is the structure chart of middle frame insulation blocking system of the present invention;
Fig. 2 is each row two preformed pile schematic diagrames in the present invention;
Fig. 3 is A-A sectional view;
Fig. 4 is the partial enlarged drawing at B place in Fig. 2;
In figure, 1, preformed pile, 2, pile top, 3, wire rope, 4, screw rod, 5, nut, 6, locking pin, 7, fixed pulley, the 8, second stull, 9, Grouting Pipe, passage of 10. whitewashing, 11. tunnels, 12. first stulls.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.
Fig. 1 is the structural representation of middle frame insulation blocking system of the present invention, a kind of frame type insulation blocking system, comprise two row's preformed piles 1, two row's preformed piles 1 are vertically arranged on the both sides of tunneling respectively, each row's preformed pile 1 connects with the first stull 12 between adjacent two preformed piles 1, connect the upper semisection of two preformed piles 1 with the second stull 8 between each row two preformed piles 1, connect with tensioning mechanism between each row two preformed piles 1 and strain the lower semisection of two preformed piles 1, by two row's multiple row preformed piles 1, first stull 12 and the second stull 8 define a part for a frame type box culvert, the lower semisection of two preformed piles 1 is connected again by tensioning mechanism, tensioning mechanism defines the lower support beam of frame type box culvert.
Fig. 3 is the sectional view of A-A in Fig. 1, and namely lean lower portion in the stake of preformed pile 1 and have 3 square notches, between adjacent prismatic notch, angle is 90 °, and the first stull 12 is connected preformed pile 1 with the second stull 8 respectively by square notch.
Fig. 2 is each row two preformed pile schematic diagrames in the present invention, is provided with through hole at the center vertical of every root preformed pile 1, and through hole is used for the setting of wire rope 3 and Grouting Pipe 9, and Grouting Pipe 9 is vertically arranged in through hole.Tensioning mechanism comprises two fixed pulleys 7, two fixed pulleys 7 are respectively arranged on the hypomere part of each row two preformed piles 1, wire rope 3 from the stake top of a preformed pile 1 through the stake top of the through hole of the through hole of this preformed pile 1, two fixed pulleys 7 and another root preformed pile 1 to another root preformed pile 1, fixed pulley 7 for wire rope 3 strain time, the internal construction of unlikely destruction preformed pile 1.
Wire rope 3 is at the stake top of two preformed piles 1 difference connecting screw rod 4, screw rod 4 is fixed on the stake top of preformed pile 1 by nut 5, by screw rod 4 nut 5, two free ends of wire rope 3 are fixed on the stake top of preformed pile 1, and locking pin 6 is inserted on the top of screw rod 4, prevent the slippage of screw rod 4 nut 5, nut 5 is provided with a nut through hole inserted for Grouting Pipe 9.
Pile top 2 is provided with at the bottom of the stake of preformed pile, pile top 2 is connected to the bottom of preformed pile 1 by welding or the mode of screw thread, and the lower end of pile top 2 is tapered, enters soil pressure when can reduce piling, be convenient to carry out piling to preformed pile 1 by arranging pile top 2, and facilitate fixed pulley 7 and be arranged in pile top.
Be provided with for the Grouting Pipe 9 to wire rope 3 slip casting between two preformed piles 1 in preformed pile 1, by Grouting Pipe 9 to wire rope 3 slip casting, slurries diffuse to soil layer, wrapped wire rope 3, native horizontal beam action is played after solidifying, resisted the soil deformation between preformed pile 1, and whole frame size is greater than the diameter in tunnel 11, from lower portion, is constructed in tunnel 11.
As the enlarged drawing that Fig. 4 is B place in Fig. 2, as can be seen from the figure in pile top 2, level is provided with a whitewashing path 10, the distance that whitewashing path 10 sets apart from horizontally disposed wire rope 3, the initiating terminal of whitewashing path 10 connects Grouting Pipe 9, the end of whitewashing path 10 between each row two preformed piles 1 above wire rope 3, the soil layer in each row between two preformed piles 1.
The construction method of frame type insulation blocking system, concrete steps are as follows:
1) preformed pile 1 and pile top 2 is made;
2) fixed pulley 7 is arranged in pile top 2, in pile top 2, leaves the mobile space of wire rope 3;
3) pile top 2 is fixed on the bottom of preformed pile 1;
4) set the installation site of preformed pile 1, with wire rope 3 from the top of a preformed pile 1 through the stake top of the through hole of the through hole of this preformed pile 1, two fixed pulleys 7, another root preformed pile 1 to another root preformed pile 1;
5) all connect a screw rod 4 at two free ends of wire rope 3, screw rod 4 is connected with nut 5, arranges locking pin 6 at the upper horizontal of screw rod 4;
6) by the mode of static pressed pile, piling is carried out to two preformed piles 1;
7) after piling puts in place, wire rope 3 is strained, nut 5 and screw rod 4 are tightened fixing;
8) repeat step 2)-step 7), formed two row multiple rows preformed pile 1 framework;
9), after piling puts in place, a little soil layer on excavation preformed pile 1 top, until expose the square notch on preformed pile 1 top, connects two preformed piles 1 on same row, connects two preformed piles 1 on same row with the second stull 8 with the first stull 12;
10) vertical Grouting Pipe 9 in the through hole of preformed pile 1, the bottom of Grouting Pipe 9 contacts with whitewashing path 10, by Grouting Pipe 9 and whitewashing path 10 to wire rope 3 slip casting between two preformed piles 1, after slip casting completes, takes out Grouting Pipe 9;
11) step 2 is repeated) to step 8), until the requirement of the insulation blocking reached.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a frame type insulation blocking system, is characterized in that, comprising:
Preformed pile, along estimating that tunneling lateral separation is in a row, longitudinal separation setting in column;
First stull, is laterally placed in the upper semisection with row's preformed pile and is rigidly connected with preformed pile;
Second stull, is longitudinally placed in the upper semisection of same column preformed pile and is rigidly connected with preformed pile;
Be provided with between the lower semisection of same column preformed pile for connecting and straining the tensioning mechanism of same column preformed pile.
2. frame type insulation blocking system as claimed in claim 1, is characterized in that, be provided with through hole at the center vertical of every root preformed pile.
3. frame type insulation blocking system as claimed in claim 2; it is characterized in that; described tensioning mechanism comprises two fixed pulleys; two fixed pulleys are respectively arranged on the hypomere part of each row two preformed piles, wire rope from the stake top of a preformed pile through the stake top of the through hole of the through hole of this preformed pile, two fixed pulleys and another root preformed pile to another root preformed pile.
4. frame type insulation blocking system as claimed in claim 3, is characterized in that, described wire rope is at the stake top of two preformed piles difference connecting screw rod, and screw rod is fixed on the stake top of preformed pile by nut.
5. frame type insulation blocking system as claimed in claim 2, it is characterized in that, at the bottom of the stake of described preformed pile, be provided with pile top, the lower end of pile top is tapered.
6. frame type insulation blocking system as claimed in claim 5, is characterized in that, be horizontally disposed with whitewashing passage in described pile top, and whitewashing passage communicates with described through hole.
7. frame type insulation blocking system as claimed in claim 3, is characterized in that, the described wire rope between each row two preformed piles is enclosed with cement.
8. the construction method of the frame type insulation blocking system according to any one of claim 1-7, it is characterized in that, concrete steps are as follows:
1) preformed pile and pile top is made;
2) pile top is fixed on the bottom of preformed pile;
3) with wire rope from the top of a preformed pile through the through hole of this preformed pile, the through hole of another root preformed pile to the stake top of another root preformed pile;
4) fixed by the top of fastener by wire rope;
5) piling is carried out to two preformed piles;
6) repeat step 2)-step 5), formed two row multiple rows preformed pile framework;
7), after piling puts in place, a little soil layer on excavation preformed pile top, connects two preformed piles on same row, connects two preformed piles on same row with the second stull with the first stull;
8) utilize Grouting Pipe and whitewashing passage to the wire rope slip casting between two preformed piles;
9) step 2 is repeated) to step 8).
9. construction method as claimed in claim 8, is characterized in that, described step 4) in fastener be bolt and nut, screw rod is connected with described wire rope, nut and screw rod fastening.
10. construction method as claimed in claim 8, it is characterized in that, in described pile top, arrange a fixed pulley, described fixed pulley walked around by described wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532560.6A CN105040746B (en) | 2015-08-26 | 2015-08-26 | A kind of frame-type insulation blocking system and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532560.6A CN105040746B (en) | 2015-08-26 | 2015-08-26 | A kind of frame-type insulation blocking system and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105040746A true CN105040746A (en) | 2015-11-11 |
| CN105040746B CN105040746B (en) | 2016-08-24 |
Family
ID=54447692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510532560.6A Active CN105040746B (en) | 2015-08-26 | 2015-08-26 | A kind of frame-type insulation blocking system and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105040746B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114606976A (en) * | 2022-03-31 | 2022-06-10 | 广州市市政工程设计研究总院有限公司 | Fabricated anti-seismic energy-consumption type channel structure spanning sensitive structures |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11229412A (en) * | 1998-02-10 | 1999-08-24 | Takaaki Endo | Construction method of large-sized box culvert |
| CN200985518Y (en) * | 2006-12-20 | 2007-12-05 | 上海市第一建筑有限公司 | Portal type anti floating structure |
| CN101139839A (en) * | 2007-10-15 | 2008-03-12 | 上海市隧道工程轨道交通设计研究院 | Setting arrangement for high artesian area ultra-deep foundation pit |
| CN102733413A (en) * | 2012-06-18 | 2012-10-17 | 河海大学 | Method for controlling subsidence of operating subway tunnel |
| CN202543953U (en) * | 2012-03-31 | 2012-11-21 | 中铁第四勘察设计院集团有限公司 | Supporting structure for shallow tunnel in overpass operation |
| CN203161244U (en) * | 2013-01-30 | 2013-08-28 | 中铁二院工程集团有限责任公司 | Existing subway underground excavation running tunnel protection structure |
| CN104120731A (en) * | 2014-07-24 | 2014-10-29 | 黄俊文 | Tunnel settlement protecting device and construction method thereof |
| CN204571996U (en) * | 2015-03-16 | 2015-08-19 | 中铁第一勘察设计院集团有限公司 | A kind of bed shallow covering shield driving stratum consolidation system |
| CN204919627U (en) * | 2015-08-26 | 2015-12-30 | 济南轨道交通集团有限公司 | Frame -type insulation blocking system |
-
2015
- 2015-08-26 CN CN201510532560.6A patent/CN105040746B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11229412A (en) * | 1998-02-10 | 1999-08-24 | Takaaki Endo | Construction method of large-sized box culvert |
| CN200985518Y (en) * | 2006-12-20 | 2007-12-05 | 上海市第一建筑有限公司 | Portal type anti floating structure |
| CN101139839A (en) * | 2007-10-15 | 2008-03-12 | 上海市隧道工程轨道交通设计研究院 | Setting arrangement for high artesian area ultra-deep foundation pit |
| CN202543953U (en) * | 2012-03-31 | 2012-11-21 | 中铁第四勘察设计院集团有限公司 | Supporting structure for shallow tunnel in overpass operation |
| CN102733413A (en) * | 2012-06-18 | 2012-10-17 | 河海大学 | Method for controlling subsidence of operating subway tunnel |
| CN203161244U (en) * | 2013-01-30 | 2013-08-28 | 中铁二院工程集团有限责任公司 | Existing subway underground excavation running tunnel protection structure |
| CN104120731A (en) * | 2014-07-24 | 2014-10-29 | 黄俊文 | Tunnel settlement protecting device and construction method thereof |
| CN204571996U (en) * | 2015-03-16 | 2015-08-19 | 中铁第一勘察设计院集团有限公司 | A kind of bed shallow covering shield driving stratum consolidation system |
| CN204919627U (en) * | 2015-08-26 | 2015-12-30 | 济南轨道交通集团有限公司 | Frame -type insulation blocking system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114606976A (en) * | 2022-03-31 | 2022-06-10 | 广州市市政工程设计研究总院有限公司 | Fabricated anti-seismic energy-consumption type channel structure spanning sensitive structures |
| CN114606976B (en) * | 2022-03-31 | 2023-09-08 | 广州市市政工程设计研究总院有限公司 | Assembled anti-seismic energy-dissipation type channel structure crossing sensitive structures |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105040746B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102003187B (en) | Construction method of under cutting excavation supporting of of deeply buried soft-rock large tunnel | |
| CN102162258B (en) | Concrete-filled steel tubular high-pile tower footing structure of tower crane and construction method thereof | |
| CN204919627U (en) | Frame -type insulation blocking system | |
| CN105201524A (en) | Reserved anchor net and right-angled yieldable shed combined support technology for extremely soft coal seam roadway | |
| CN110777802A (en) | Deep foundation pit high-low span supporting structure and construction method thereof | |
| CN103343532B (en) | Pre-stressed anchor cable pile-slab wall | |
| CN104863177A (en) | Composite retaining wall structure and construction method thereof | |
| CN112282799A (en) | Support-anchor integrated resistance-limiting energy-consuming large-deformation tunnel primary support structure and construction method | |
| CN204551491U (en) | A kind of side slope protection greening structure | |
| CN205036384U (en) | Bias voltage dissolves tunnel supporting construction under environment of chamber | |
| CN212129160U (en) | Oblique-pulling foundation pit supporting structure for pile top | |
| CN105133664B (en) | Combined frame type isolation protection system and construction method thereof | |
| CN202730796U (en) | Existing retaining wall rib plate type unloading reinforcing structure | |
| CN105040746A (en) | Frame type isolation protection system and construction method thereof | |
| CN104452771A (en) | Counterfort type row pile supporting method for foundation pit | |
| CN204825919U (en) | Strut foundation ditch and enclose purlin structure of shearing | |
| CN104452775A (en) | Prestress support used for foundation pit and construction method | |
| CN201334668Y (en) | Moso bamboo row pile | |
| CN114032932B (en) | Construction method of hybrid retaining structure | |
| CN204919626U (en) | Combo box posture insulation blocking system | |
| JP5770155B2 (en) | Wall structure | |
| CN104674823A (en) | Foundation pit protecting support and rectangular foundation pit support method | |
| CN104631474B (en) | A kind of side slope protection greening structure | |
| CN212225231U (en) | Protective structure for bias tunnel portal | |
| CN210104765U (en) | High and large retaining structure of soft geological side slope |
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 |