CN203905018U - Supporting and protecting system with combined double-row piles in combination with oblique anchors - Google Patents
Supporting and protecting system with combined double-row piles in combination with oblique anchors Download PDFInfo
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- CN203905018U CN203905018U CN201420268526.3U CN201420268526U CN203905018U CN 203905018 U CN203905018 U CN 203905018U CN 201420268526 U CN201420268526 U CN 201420268526U CN 203905018 U CN203905018 U CN 203905018U
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Abstract
A supporting and protecting system with combined double-row piles in combination with oblique anchors comprises front-row piles, a front-row crown beam, rear-row piles, a rear-row crown beam and connecting beams. Reinforcing bars of the front-row piles are fixedly anchored with the front-row crown beam, the front-row piles are concrete piles vertically arranged at intervals, the rear-row piles are a cement-soil mixing pile wall with H-beams inserted at intervals, and the connecting beams between the front-row crown beam and the rear-row crown beam are double-limb connecting beams. The supporting and protecting system further comprises the large-dip-angle prestressed anchors, anchor heads of the large-dip-angle prestressed anchors are arranged between every two double-limb connecting beams and are connected with the rear-row crown beam through anchorage piers, and free sections of the large-dip-angle prestressed anchors penetrate the cement-soil mixing pile wall to be anchored in deep stable soil mass. The supporting and protecting system functions in retaining and water proofing; compared with the supporting and protecting system with ordinary double-row piles, the supporting and protecting system of the combined double-row piles in combination with the oblique anchors has the advantages that construction procedures are reduced, project cost of the supporting and protecting engineering can be greatly lowered, construction duration can be shortened, resistance to lateral deformation of the supporting and protecting system is remarkably improved, and foundation pit depth and width suitable for the double-row pile supporting and protecting system are increased.
Description
Technical field
The utility model belongs to foundation field, relates to a kind of double-row pile that combines in conjunction with the support system of high inclination-angle prestressed anchor.
Background technology
The front and rear row of common double Row Piles Supporting Structure is reinforced concrete pile, and larger lateral deformation stiffness can be provided, and within the scope of certain foundation depth, without anchor pole or inner support, has greatly facilitated construction in hole.The base pit engineering that needs water proof for the higher area of groundwater table, often needs to set up water-stop curtain, has increased working procedure and construction costs.When the excavation of foundation pit degree of depth is larger, restricted by Deformation control ability and the stability of common double campshed, common double campshed can not adopt.
Utility model content
The purpose of this utility model is to provide a kind of combination double-row pile in conjunction with oblique bolt support system, solve in the high base pit engineering of groundwater table, set up the technical problem that water-stop curtain working procedure is complicated, construction costs is high, and solve Deformation control ability and the inadequate problem of stability of double-row pile.
For achieving the above object, the utility model adopts following technical scheme:
A kind of combination double-row pile is in conjunction with oblique bolt support system, comprise front campshed, front-seat Guan Liang, rear campshed, rear row Guan Liang and linking beam, the main muscle of described front campshed and front-seat Guan Liang are anchored fixing, described front campshed is vertical spaced concrete pile, rear campshed is the Soil-cement piling wall of interval interpolation H shaped steel, and the linking beam that front-seat Guan Liang and rear row are preced with between beam is two limb linking beams;
Described combination double-row pile also includes high inclination-angle prestressed anchor in conjunction with oblique bolt support system, the anchor head of high inclination-angle prestressed anchor is arranged between two two limb linking beams, the anchor head of high inclination-angle prestressed anchor is connected with rear row Guan Liang by anchor pier, and the free segment of high inclination-angle prestressed anchor is anchored in the deep stability soil body through cement mixing method wall.
Before described pair of limb linking beam, the centre of form of campshed and the centre of form line of the H shaped steel on rear campshed are center line.
Distance between adjacent two H shaped steel is 1～3 times of distance between adjacent two front campsheds.
The upper end of described H shaped steel is through rear row Guan Liang expose the height that is not less than 500mm, and the upper end of H shaped steel is reserved with lifting eye, at support system, completes and predeterminedly can lift by crane recovery H shaped steel after using function.
Between described adjacent H shaped steel, be vertically arranged at intervals with 1 or 2 road high inclination-angle prestressed anchors.
Described high inclination-angle prestressed anchor and horizontal direction angle are 30
0～60
0.
Compared with prior art the utlity model has following characteristics and beneficial effect:
Rear campshed of the present utility model is the Soil-cement piling wall of interval interpolation H shaped steel, double as water-stop curtain and use, so Composite Supporting System has a double effects that keeps off, intercepts water.Rear row Guan Liang is passed in H shaped steel end in Soil-cement piling wall,, expose certain altitude and be reserved with lifting hole(eyelet), conveniently after being used to complete, H shaped steel is reclaimed, significantly reduce construction costs.When front and back campshed forms portal frame, rear side of arranging Guan Liang at rear campshed is provided with high inclination-angle prestressed anchor, improve the stressed proterties of Double-row Piles Support, significantly improved the anti-side-move distortion ability of support system, increased the applicable foundation depth of Double-row Piles Support system.Without in hole, inner support or anchor pole being set again, facilitated construction, efficiency of construction is provided.
It is large and need the deep-foundation pit engineering of water proof that the utility model can be widely used in the excavation of foundation pit degree of depth under the geological conditionss such as weak soil, silt, fine sand.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is the three-dimensional schematic diagram of arranging of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is lateral view of the present utility model;
Fig. 4 is the layout schematic diagram of forward and backward campshed in the utility model.
Before Reference numeral: 1-, after campshed, 2-front-seat Guan Liang, 3-, after campshed, 4-H shaped steel, 5-, arrange the two limb linking beams of Guan Liang, 6-, 7-high inclination-angle prestressed anchor, 8-anchor pier, 9-free segment, 10-anchoring section.
The specific embodiment
Shown in Fig. 1-Fig. 4, this combination double-row pile is in conjunction with oblique bolt support system, comprise that front campshed 1, front-seat hat beam 2, rear campshed 3, rear row are preced with beam 5 and linking beam, the main muscle of described front campshed 1 is anchored fixing with front-seat hat beam 2, described front campshed 1 is vertical spaced concrete pile, rear campshed 3 is Soil-cement piling walls of interval interpolation H shaped steel 4, and the linking beam that front-seat hat beam 2 and rear row are preced with between beam 5 is two limb linking beams 6;
Described combination double-row pile also includes high inclination-angle prestressed anchor 7 in conjunction with oblique bolt support system, the anchor head of high inclination-angle prestressed anchor 7 is arranged between two two limb linking beams 6, the anchor head of high inclination-angle prestressed anchor 7 is connected with rear row Guan Liang by anchor pier 8, the free segment 9 of high inclination-angle prestressed anchor 7 is through Soil-cement piling wall, and the anchoring section 10 of high inclination-angle prestressed anchor 7 is anchored in the deep stability soil body.
Before described pair of limb linking beam 6, the centre of form of campshed 1 and the centre of form line of the H shaped steel 4 on rear campshed 3 are center line.Two every limbs of limb linking beam 6 are made as 30mm left and right with the edge of a wing gap value of H shaped steel 4 in the present embodiment, and the clear distance between two limbs of pair limb linking beams 6 is the gap value that the flange width of H shaped steel 4 adds about 60mm.
Distance between adjacent two H shaped steel 4 is 1～3 times of distance between adjacent two front campsheds 1.
The upper end of described H shaped steel 4 is preced with beam 5 and exposes the height that is not less than 500mm through rear row, and the upper end of H shaped steel 4 is reserved with lifting eye, completes predetermined can lifting after using function reclaim H shaped steel at support system.H shaped steel goes out terrace at underground structure, after structure and foundation ditch periphery space backfill are underground, can pull out, and can significantly reduce construction costs.
Between described adjacent H shaped steel 4, be vertically arranged at intervals with 1 or 2 road high inclination-angle prestressed anchors 7.Only be provided with in the accompanying drawings 1 high inclination-angle prestressed anchor 7, in practice of construction, can 1 or 2 road high inclination-angle prestressed anchors be set according to construction requirement, whole support system, without inner support or multiple tracks anchor pole are more set again, has facilitated construction, and efficiency of construction is provided.
Described high inclination-angle prestressed anchor and horizontal plane angle are 30
0～60
0, larger anchored force component can be provided in the horizontal and vertical direction, can effectively improve the stress performance of double-row pile, improve its lateral deformation stiffness.In practice of construction, can according to the deformation of support system, on ground, face high inclination-angle prestressed anchor and repeatedly apply prestressing force, can effectively control the distortion of support system.
The utility model can be realized by the repeatedly stretch-draw of high inclination-angle prestressed anchor the Deformation control of support system and increase stability.In hole, without setting up again inner support or multiple tracks anchor pole more, be very easy to construction.Supporting of the present utility model can be under the geological conditionss such as weak soil, silt, fine sand, and base pit engineering need to intercept water, and the excavation of foundation pit degree of depth is larger, and wall outside, hole possesses in the engineering of construction high inclination-angle anchor pole uses.
The utility model when construction, first construct and be inserted with the Soil-cement piling wall of H shaped steel, rear construction front row reinforced concrete pile in arranging afterwards.Concrete construction method is as follows:
Step 1: according to construction project to be built site condition and surrounding enviroment condition, campshed, i.e. Soil-cement piling wall after selection particular location starts to construct.Rear campshed is first constructed, and between the front campshed of rear construction and surrounding enviroment medium, forms effectively and cuts off, and has reduced the influence degree of front-seat pile driving construction to surrounding enviroment.Visible, to compare with common double campshed, the construction of combination double-row pile is protection of the environment effectively.
Step 2: before the cement setting sclerosis of the rear campshed of having constructed, can start to insert within the walls H shaped steel operation to cement mixing method, H shaped steel inserts operation and easily completes in 30 minutes and carry out at relevant position mixing pile construction.H shaped steel ride out is no less than 500mm.
Step 3: after campshed construction, can start the construction of front campshed (front-seat cast-in-place concrete pile) after completing, the main muscle in top of stake stays length should meet stake outward and rigidly connects requirement with whole the watering of front-seat hat beam.
Step 4: the reinforcing bar in the two limb linking beams between rear row Guan Liang, front campshed and the rear campshed of the front-seat Guan Liang of the front campshed of colligation, rear campshed, and the oblique anchor position of constructing puts the interior reinforcing bar of anchor pier, reserves oblique prestressed anchor passage, carries out concrete integrated poured.
Step 5: until after campshed while meeting seepage resistance demand, can carry out Ground Water Pumping during Excavation, when the Double-row Piles Support system each several part of the combined steel cement mixing method of reinforced concrete pile wall meets requirement of strength, can carry out pit earthwork excavation.
Step 6: in soil excavation process, according to support system deformation monitoring result, to the in good time stretch-draw of high inclination-angle prestressed anchor.
Step 7: excavation of foundation pit, after projected depth, starts Underground Construction.
Step 8: Underground Construction goes out terrace, after the space backfill compacting between structure and Foundation Pit wall, can carry out high inclination-angle prestressed anchor prestressing force and discharge and body of rod recovery.
Step 9: pull out H shaped steel, the space slip casting packing that H shaped steel stays.
Content described in this manual embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention contains those skilled in the art conceives the equivalent technologies means that can expect according to the present invention.
Claims (6)
1. a combination double-row pile is in conjunction with oblique bolt support system, comprise front campshed (1), front-seat Guan Liang (2), rear campshed (3), rear row Guan Liang (5) and linking beam, the main muscle of described front campshed (1) and front-seat Guan Liang (2) are anchored fixing, it is characterized in that: described front campshed (1) is vertical spaced concrete pile, rear campshed (3) is the Soil-cement piling wall of interval interpolation H shaped steel (4), and the linking beam between front-seat Guan Liang (2) and rear row Guan Liang (5) is two limb linking beams (6);
Described combination double-row pile also includes high inclination-angle prestressed anchor (7) in conjunction with oblique bolt support system, the anchor head of high inclination-angle prestressed anchor (7) is arranged between two two limb linking beams (6), the anchor head of high inclination-angle prestressed anchor (7) is connected with rear row Guan Liang by anchor pier (8), and the free segment (9) of high inclination-angle prestressed anchor (7) is anchored in the deep stability soil body through cement mixing method wall.
2. combination double-row pile according to claim 1, in conjunction with oblique bolt support system, is characterized in that: before described pair of limb linking beam (6), the centre of form of campshed (1) and the centre of form line of the H shaped steel (4) on rear campshed (3) are center line.
3. combination double-row pile according to claim 1, in conjunction with oblique bolt support system, is characterized in that: the distance between adjacent two H shaped steel (4) is 1～3 times of distance between adjacent two front campsheds (1).
4. combination double-row pile according to claim 1 is in conjunction with oblique bolt support system, it is characterized in that: the upper end of described H shaped steel (4) is through rear row Guan Liang (5) and expose the height that is not less than 500mm, and the upper end of H shaped steel (4) is reserved with lifting eye.
5. combination double-row pile according to claim 1, in conjunction with oblique bolt support system, is characterized in that: between described adjacent H shaped steel (4), be vertically arranged at intervals with 1 or 2 road high inclination-angle prestressed anchors (7).
6. combination double-row pile according to claim 1, in conjunction with oblique bolt support system, is characterized in that: described high inclination-angle prestressed anchor (7) is 30 with the angle of horizontal plane
0～60
0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268526.3U CN203905018U (en) | 2014-05-26 | 2014-05-26 | Supporting and protecting system with combined double-row piles in combination with oblique anchors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268526.3U CN203905018U (en) | 2014-05-26 | 2014-05-26 | Supporting and protecting system with combined double-row piles in combination with oblique anchors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203905018U true CN203905018U (en) | 2014-10-29 |
Family
ID=51779309
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420268526.3U Expired - Fee Related CN203905018U (en) | 2014-05-26 | 2014-05-26 | Supporting and protecting system with combined double-row piles in combination with oblique anchors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203905018U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696601A (en) * | 2016-02-27 | 2016-06-22 | 武汉市创先专利技术服务有限公司 | Reusable foundation pit supporting device with water stopping function and construction method |
| CN105714830A (en) * | 2016-02-03 | 2016-06-29 | 华侨大学 | Connecting plate for abnormal-shape double-row piles |
| CN107938689A (en) * | 2017-12-01 | 2018-04-20 | 中铁二院工程集团有限责任公司 | A kind of small deformation stake beam type cutting frame structure and its construction method |
| CN108951650A (en) * | 2018-07-28 | 2018-12-07 | 江苏地基工程有限公司 | Without support system of deep foundation pit support |
| CN109457709A (en) * | 2018-12-26 | 2019-03-12 | 青岛业高建设工程有限公司李沧分公司 | A kind of supporting construction and construction method of double-row pile combination wide-angle anchor cable |
| CN110565658A (en) * | 2019-08-27 | 2019-12-13 | 江苏省地质矿产局第三地质大队 | Double-row bottom-expanding long-short combined anti-slide pile for slope support |
| CN113322971A (en) * | 2021-05-10 | 2021-08-31 | 广东省建筑设计研究院有限公司 | Combined prefabricated dado square pile foundation pit supporting structure and construction method thereof |
| CN114991168A (en) * | 2022-06-21 | 2022-09-02 | 中国五冶集团有限公司 | Supporting pile reinforcing structure positioned outside foundation pit and construction method thereof |
-
2014
- 2014-05-26 CN CN201420268526.3U patent/CN203905018U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714830A (en) * | 2016-02-03 | 2016-06-29 | 华侨大学 | Connecting plate for abnormal-shape double-row piles |
| CN105696601A (en) * | 2016-02-27 | 2016-06-22 | 武汉市创先专利技术服务有限公司 | Reusable foundation pit supporting device with water stopping function and construction method |
| CN107938689A (en) * | 2017-12-01 | 2018-04-20 | 中铁二院工程集团有限责任公司 | A kind of small deformation stake beam type cutting frame structure and its construction method |
| CN108951650A (en) * | 2018-07-28 | 2018-12-07 | 江苏地基工程有限公司 | Without support system of deep foundation pit support |
| CN109457709A (en) * | 2018-12-26 | 2019-03-12 | 青岛业高建设工程有限公司李沧分公司 | A kind of supporting construction and construction method of double-row pile combination wide-angle anchor cable |
| CN110565658A (en) * | 2019-08-27 | 2019-12-13 | 江苏省地质矿产局第三地质大队 | Double-row bottom-expanding long-short combined anti-slide pile for slope support |
| CN113322971A (en) * | 2021-05-10 | 2021-08-31 | 广东省建筑设计研究院有限公司 | Combined prefabricated dado square pile foundation pit supporting structure and construction method thereof |
| CN114991168A (en) * | 2022-06-21 | 2022-09-02 | 中国五冶集团有限公司 | Supporting pile reinforcing structure positioned outside foundation pit and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20160526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |