CN105002906A - Binding type anchor cable composite pile structure serving as main body structure stand column and construction method thereof - Google Patents
Binding type anchor cable composite pile structure serving as main body structure stand column and construction method thereof Download PDFInfo
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- CN105002906A CN105002906A CN201510454024.9A CN201510454024A CN105002906A CN 105002906 A CN105002906 A CN 105002906A CN 201510454024 A CN201510454024 A CN 201510454024A CN 105002906 A CN105002906 A CN 105002906A
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Abstract
The invention relates to a binding type anchor cable composite pile structure serving as a main body structure stand column and a construction method thereof. The composite pile structure comprises an anchor cable, multiple base piles with the anchor cable as the center and binding hoops surrounding the base piles, and concrete is poured into the binding hoops. The construction method comprises the steps that the anchor cable is arranged firstly, and the base piles are arranged around the anchor cable. The binding type anchor cable composite pile structure serving as a main body structure stand column and the construction method thereof have the following advantages that the mode of one anchor cable and multiple piles is adopted, and the technological processes such as slurry wall retaining are omitted, so that the construction period is shortened; the binding type anchor cable composite pile structure can serve as a stress component of a main body structure, a bearing component does not need to be constructed again, a few anchor rods are provided, and the cost is saved. In addition, according to the composite pile, the problems of hole collapse, hole shrinkage, pile breaking, interlining and the like of bored piles in the construction process can be effectively avoided, and the quality of finished piles is ensured.
Description
Technical field
The invention belongs to construction engineering technical field, be specifically related to a kind of cluster anchor cable composite pile structure as agent structure column and construction method thereof.
Background technology
Along with the development of economic society, people constantly promote for the concern saved land.According to the statistics made by the departments concerned, national vehicle guaranteeding organic quantity improves constantly root in recent years, and wherein private car recoverable amount increases the fastest, motor vehicle to park contradiction day by day fierce.Special in old town and the multi-storey building district not having garage, because the reason such as history, overall plan causes the phenomenon of " car multidigit is few ".For solving this contradiction, related researcher proposes a kind of scheme of the newly-built underground garage in former address, and in order to reduce the impact of constructing on surrounding environment and resident living, adopt shallow mining method, its key technology is pressing pile construction scheme.Consider the impact of the factor such as environment, place, the construction technology feature of anchor cable (bar) static pressed pile meets related request.
Traditional anchor cable (bar) static pressed pile is a kind ofly applied to underpin, drags the technology of changing and rectifying a deviation, construction technology general flow: 1, reserved on basis or dig out stake holes 2, rearmounted anchor pole or reserved anchor pole 3, install reaction frame and prepare piling 4, pile extension, piling, Stake head handling.There is following point in the method: 1: anchor pole quantity is many, cost is high, 2, soil property situation in underground is more complicated, prospecting is not clear or when meeting boulder, often cause piling difficulty, 3, when constructing in resident compact district, occupy place larger, considerable influence is had to resident's normal life, 4, easily occur the problems such as collapse hole, undergauge, broken pile in work progress, pile quality is poor, and 5, supporting capacity is low.
Summary of the invention
Object of the present invention is exactly to solve the problem, and provides the cluster anchor cable composite pile structure of a kind of prefabricated segment type stake as agent structure column and construction method thereof.
To achieve these goals, the present invention adopts following technical scheme:
A kind of cluster anchor cable composite pile structure as agent structure column, the binding hoop comprising anchor cable, the many foundation stake arranged centered by anchor cable and arrange around the stake of many foundation, concreting in binding hoop, achieve the structure of many, an anchor, total can be used as the primary structure member of agent structure, do not need to reconstruct supporting member, saved cost.
Further, the stake of many foundation is arranged on four angles place of a rectangle, totally four foundation stakes, and described anchor cable is arranged on the center of this rectangle, and described binding hoop is arranged on outside this rectangle, the setting of four foundation stakes, facilitates the later stage to carry out piling in cornerwise mode.
Further, binding hoop comprises many vertical muscle and stirrup, and stirrup is round the stake of many foundation, be set to square, many vertical muscle are vertically arranged on the limit of stirrup institute squarely, define binding hoop, carry out one fix by binding hoop to the stake of many foundation by the setting of vertical muscle and stirrup.
Further, pile crown is set in the bottom of each described foundation pile, conveniently carries out piling.
Further, foundation pile is segment type precast square pile.
Further, the termination point casing often saving square pile has steel bushing, is fixed between joint and joint by steel hoop.
As a construction method for the cluster anchor cable composite pile structure of agent structure column, comprise the following steps:
1) position that foundation pile will set is chosen;
2) on the ground, employing machine drilling gets out the anchor cable hole for arranging anchor cable;
3) in step 2) in vertically anchor cable is set in the boring that gets out, the bottom anchor of anchor cable is in the ground of bottom;
4) centered by the position of anchor cable, arrange four foundation stakes around anchor cable, four foundation stakes are vertically arranged on four angles place of a rectangle;
5) carry out piling, pile extension, extract pile follower bar, remove jack and holder device;
6) the hidden construction process excavation underground space, clears up surflaes between stake week and stake;
7) around multiple foundation pile arranged outside stirrup and vertical muscle, binding stake is formed;
8) in step 7) in formed binding stake in concreting, formed composite pile structure.
Step 4) in centered by anchor cable, limit a rectangular area, stake position be vertically set with four of rectangular area angles and draw hole, draw hole according to stake position and foundation pile is set.
Step 5) in concrete steps as follows:
5-1) in described step 4) in the top of four foundation stakes that arranges put steel bushing respectively, steel bushing welds with steel hoop;
5-2) in step 5-1) in foundation pile top in the four foundation stakes that arrange on a diagonal jack is respectively set, arrange reaction frame on the top of jack, anchor cable is through reaction frame;
5-3) in step 5-2) in the top of reaction frame that arranges at least two hoist cables are vertically set;
5-4) distance step 5-2) in the upper horizontal of reaction frame that arranges a support is set, support is arranged on the ground by four root posts, and four root posts are arranged on four angles place of another rectangle;
5-5) utilize step 4 described in reaction frame and jack pair) in foundation pile on rectangle diagonal carry out piling to the position of specifying, provide counter-force by anchor cable;
5-6) by support lift reaction frame;
5-7) utilize step 4 described in another group reaction frame and jack pair) in foundation pile on another diagonal of rectangle carry out piling to the position of specifying;
5-8) by support lift 5-7) in another group reaction frame and jack;
5-9) draw hole place in each stake position to continue to arrange a joint foundation pile, at the top of this joint foundation pile, cover has steel bushing, and welds with steel hoop;
5-10) repeat step 5-5) to step 5-9), until meet the requirements of position.
Step 6) in concrete setting steps as follows:
6-1) from described step 5) scope that the stake top that formed down sets, the external surface along the stake of many foundation vertically arranges many vertical muscle;
6-2) in step 6-1) set up vertical muscle after, be horizontally disposed with the many stirrups stake of many foundation being included in center.
Operating principle of the present invention is: behind selected good installation site, first anchor cable is set, the lower anchor of anchor cable is in ground, the stake of many foundation is set around anchor cable, provides counter-force that an around clump of piles is pressed onto the position of specifying, this construction method by anchor cable, shorten the engineering time, reduce the impact of Construction on Environment, draw hole by stake position and ensure that piling puts in place, have simple to operate, efficiency of construction is high, save material, high financial profit advantage.
Compared with prior art, the present invention has the following advantages:
1. economize on the use of funds: the form of " many, an anchor ", eliminates the technological processes such as mud off, construction period is shortened; Can, as the primary structure member of agent structure, do not need to reconstruct supporting member, and anchor pole quantity be few, cost-saving.
2. pile quality is good: the problem such as collapse hole, undergauge, broken pile, interlayer that this kind of composite pile can effectively avoid bored pile in work progress to occur, pile quality is guaranteed.
3. bearing capacity is large: form an independently vertical member by after clump of piles binding, supporting capacity significantly improves.
4. environmental friendliness: avoid the pollution of slurry coat method to surrounding environment, avoids the impact of big machinery construction on resident living.
Accompanying drawing explanation
Fig. 1 is the construction process figure of composite pile of the present invention;
Fig. 2 is the layout plan of a clump of piles 1,2,3,4 of the present invention;
Fig. 3 (a)-Fig. 3 (g) is composite pile construction way figure of the present invention;
Wherein: Fig. 3 (a) for anchor cable drilling machine holed after generalized section;
Fig. 3 (b) is the generalized section of anchorage cable anchoring position perfusion grouting material;
Fig. 3 (c) draws the generalized section in hole for being provided with 4 stake positions;
Fig. 3 (d) carries out the generalized section of piling to foundation pile along a pair linea angulata;
Fig. 3 (e) carries out the generalized section of piling to foundation pile along another diagonal;
Fig. 3 (f) bundlees the generalized section of stake reinforcement placement;
Fig. 3 (g) bundlees the generalized section after stake concreting;
A-A sectional view in Fig. 3 (d) during the precast concrete square pile that Fig. 4 provides for the embodiment of the present invention;
B-B sectional view in Fig. 3 (f) during the precast concrete square pile that Fig. 5 provides for the embodiment of the present invention;
C-C sectional view in Fig. 3 (g) during the precast concrete square pile that Fig. 6 provides for the embodiment of the present invention;
The partial enlarged drawing during precast concrete square pile that Fig. 7 provides for the embodiment of the present invention in Fig. 3 (d);
Reaction frame plan view in Fig. 7 during the precast concrete square pile that Fig. 8 provides for the embodiment of the present invention;
The top view of support during the precast concrete square pile that Fig. 9 provides for the embodiment of the present invention;
The structure chart of geometrical clamp during the precast concrete square pile that Figure 10 provides for the embodiment of the present invention;
In figure, 1 is No. 1 foundation pile; 2 is No. 2 foundation piles; 3 is No. 3 foundation piles; 4 is No. 4 foundation piles; 5 is anchor cable hole; 6 anchor cables; 7 is injecting paste material; 8 for drawing hole in stake position; 9 is jack; 10 reaction frames; 11 is support; 12 is binding stake; 13 vertical muscle; 14 concrete; 16 is hoist cable; 15 is stirrup; 17 is buckle; 18 is steel hoop; 19 is girder steel; 20 columns; 21 is geometrical clamp; 22 is high-strength bolt; 23 ground.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
Embodiment 1
As shown in Figure 2, a kind of cluster anchor cable composite pile structure as agent structure column, the many foundation stake comprise anchor cable 6, arranging centered by anchor cable 6 and the binding hoop arranged around the stake of many foundation, concreting 14 in binding hoop.
Particularly, the stake of many foundation is arranged on four angles place of a rectangle, totally four foundation stakes, is respectively No. 1 foundation pile 1, No. 2 foundation piles 2, No. three foundation piles 3, No. 4 foundation piles 4, anchor cable 6 is arranged on the center of this rectangle, and binding hoop is arranged on outside this rectangle, is horizontally disposed with girder steel 19 in the top center of four foundation stakes; Or the stake of many foundation is arranged on in anchor cable 6 circle that is the center of circle, the distance of foundation pile interval setting.
Binding hoop comprises many vertical muscle 13 and stirrup 15, and stirrup 15, round the stake of many foundation, is set to square, and many vertical muscle 13 are vertically arranged on the limit of stirrup 15 squarelys, defines binding hoop by the setting of vertical muscle 13 and stirrup 15.
Arrange pile crown in the bottom of each foundation pile, pile crown conically, is convenient to foundation pile and is deep into underground.
Foundation pile is segment type precast square pile, and the termination point casing often saving square pile has steel bushing, and fixed by steel hoop between joint and joint, steel bushing and steel hoop 18 are by being welded to connect.
Fig. 1 is the structure flow chart of composite pile in the present invention, and a kind of construction method of the cluster anchor cable composite pile structure as agent structure column, comprises the following steps:
1) position that foundation pile will set is chosen;
2) on the ground, employing machine drilling gets out the anchor cable hole 5 for arranging anchor cable 6, as Fig. 3 (a);
3) in step 2) in anchor cable 6 is vertically set in the boring that gets out, the bottom anchor of anchor cable 6, in the ground of bottom, fills injecting paste material 7, as Fig. 3 (b) in anchorage cable anchoring section;
4) centered by the position of anchor cable 6, arrange four foundation stakes around anchor cable 6, four foundation stakes are vertically arranged on four angles place of a rectangle, as shown in Fig. 3 (d) He Fig. 4;
5) carry out piling, pile extension, extract pile follower bar, remove jack 9 and support 11 device;
6) adopt the hidden construction process excavation underground space, clear up surflaes between stake week and stake;
7) around multiple foundation pile arranged outside stirrup 15 and vertical muscle 13, binding stake 12 is formed;
8) in step 7) in formed binding stake in concreting 14, block anchor cable 6, formed composite pile structure.
Step 4) in centered by anchor cable 6, limit a rectangular area, stake position be vertically set with four of rectangular area angles and draw hole 8, draw hole 8 according to stake position and foundation pile is set, as Fig. 3 (c).
Step 5) in concrete steps as follows:
5-1) in described step 4) in the top of four foundation stakes that arranges put steel bushing respectively, arrange steel hoop 18 at upper horizontal, steel bushing welds with steel hoop 10;
5-2) in step 5-1) in the four foundation stakes that arrange on an object line A foundation pile top of (Fig. 2) jack 9 is respectively set, on the top of jack 9, reaction frame 10 is set, anchor cable is through reaction frame 10, the buckle 17 preventing anchor cable 6 slippage is set above reaction frame 10, buckle 17 is through on anchor cable 6, as Fig. 3 (d);
5-3) in step 5-2) in the top of reaction frame 10 that arranges at least two hoist cables 16 are vertically set, hoist cable 16 one end is connected on support 11, and the other end is arranged on reaction frame 10, for promoting reaction frame 10, as Fig. 3 (e);
5-4) distance step 5-2) in the upper horizontal of reaction frame 10 that arranges a support 11 is set, support 11 is arranged on ground 23 by four root posts 20, and four root posts are arranged on four angles place of another rectangle; Support 11 is a bracing or strutting arrangement, promotes reaction frame 10 by hoist cable 16;
5-5) utilize reaction frame 10 and jack 9 to described step 4) on rectangle diagonal A to foundation pile carry out piling to the position of specifying, provide counter-force by anchor cable 6;
5-6) promote reaction frame 10 and jack 9 by support 11;
5-7) utilize another diagonal of rectangle B to reaction frame 10 and jack 9 to described step 4) in B carry out piling to the foundation pile on (Fig. 2); Wherein the piling of A, B two on direction is separate; When B is to piling, anchor cable 6 by A to ground tackle fastening; B to piling to assigned address after, anchor cable 6 is fastening to ground tackle by B, unclamps A to ground tackle, promoting A to reaction frame 10 and jack 9, carrying out pile extension at A to continuing to arrange a joint foundation pile, at the top of this joint foundation pile, cover has steel bushing, and weld with steel hoop, fall jack 9;
5-8) A to piling to assigned address after, anchor cable is fastening to ground tackle by A, unclamp B to ground tackle, promote B to reaction frame 10 and jack 9; Carry out pile extension at B to continuing to arrange a joint foundation pile, at the top of this joint foundation pile, cover has steel bushing, and welds with steel hoop 18; B is to beginning piling.
5-9) repeat step 5-7) to step 5-8), A, B two is to alternately promoting piling, until foundation pile is delivered to assigned address by pile follower bar, wherein steel bushing is not placed in the top of final section foundation pile.
Step 7) in concrete setting steps as follows:
7-1) from described step 5), 6) scope that the stake top that formed down sets, the external surface along the stake of many foundation vertically arranges many vertical muscle;
7-2) in step 7-1) set up vertical muscle 13 after, be horizontally disposed with the many stirrups 15 stake of many foundation being included in center, by the outside being arranged on four foundation stakes of vertical muscle 13 and stirrup 15, total defines a binding stake 12.
In addition, as seen from Figure 8, when reaction frame 10 is set, the center that arranges above reaction frame 10 is for the fixed head by anchor cable 6, fixed head is fixed on reaction frame 10 by bolt and nut or other fasteners, a fastening devices is vertically set below reaction frame 10, this fastening devices comprises the geometrical clamp 21 of two parts symmetry, the center vertical of geometrical clamp 21 arranges the space for placing anchor cable 6, be installed with bolt hole in the horizontal direction, two geometrical clamps 21 are when clamping anchor cable 6, by high-strength bolt 22, fastening nuts, be the structure chart of a geometrical clamp as shown in Figure 10.
Embodiment 2
As a cluster anchor cable composite pile structure for agent structure column, the many foundation stake comprise anchor cable 6, arranging centered by anchor cable 6 and the binding hoop arranged around the stake of many foundation, concreting 14 in binding hoop.
Particularly, the stake of many foundation is arranged on four angles place of a rectangle, totally four foundation stakes, be respectively No. 1 foundation pile 1, No. 2 foundation piles 2, No. three foundation piles 3, No. 4 foundation piles 4, anchor cable 6 is arranged on the center of this rectangle, and described binding hoop is arranged on outside this rectangle, is horizontally disposed with girder steel 19 in the top center of four foundation stakes; Or the stake of many foundation is arranged on in anchor cable 6 circle that is the center of circle, the distance of foundation pile interval setting.
Binding hoop comprises many vertical muscle 13 and stirrup 15, and stirrup 15, round the stake of many foundation, is set to circle, and many vertical muscle 13 are vertically arranged on the conglobate limit of stirrup 15 institute, define binding hoop by the setting of vertical muscle 13 and stirrup 15.
Pile crown is set in the bottom of each foundation pile, is convenient to foundation pile and is deep into underground.
Foundation pile is the pre-rounding stake of segment type, and circle pile section is fixedly connected with by steel hoop 18 with between joint.
There is steel bushing the termination often saving square pile, and steel bushing and steel hoop 18 are by being welded to connect.
Identical with embodiment 1 of its concrete construction method.
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. as a cluster anchor cable composite pile structure for agent structure column, it is characterized in that, the binding hoop comprising anchor cable, the many foundation stake arranged centered by anchor cable and arrange around the stake of many foundation, concreting in binding hoop.
2. cluster anchor cable composite pile structure as claimed in claim 1, it is characterized in that, described many foundation stake is arranged on four angles place of a rectangle, totally four foundation stakes, described anchor cable is arranged on the center of this rectangle, described binding hoop is arranged on outside this rectangle, is horizontally disposed with girder steel in the top center of four foundation stakes.
3. cluster anchor cable composite pile structure as claimed in claim 1, it is characterized in that, described binding hoop comprises many vertical muscle and stirrup, and stirrup, round the stake of many foundation, is set to square, and many vertical muscle are vertically arranged on the limit of stirrup institute squarely.
4. cluster anchor cable composite pile structure as claimed in claim 1, is characterized in that, arrange pile crown in the bottom of each described foundation pile.
5. cluster anchor cable composite pile structure as claimed in claim 1, it is characterized in that, described foundation pile is segment type precast square pile.
6. cluster anchor cable composite pile structure as claimed in claim 5, it is characterized in that, the termination point casing often saving described square pile has steel bushing, is fixed between joint and joint by steel hoop.
7., as a construction method for the cluster anchor cable composite pile structure of agent structure column, it is characterized in that, comprise the following steps:
1) position that foundation pile will set is chosen;
2) on the ground, employing machine drilling gets out the anchor cable hole for arranging anchor cable;
3) in step 2) in vertically anchor cable is set in the boring that gets out, the bottom anchor of anchor cable is in the ground of bottom;
4) centered by the position of anchor cable, four foundation stakes are set around anchor cable;
5) carry out piling, pile extension, extract pile follower bar, remove jack and holder device;
6) the hidden construction process excavation underground space, clears up surflaes between stake week and stake;
7) around multiple foundation pile arranged outside stirrup and vertical muscle, binding stake is formed;
8) in step 7) in formed binding stake in concreting, formed composite pile structure.
8. construction method as claimed in claim 7, is characterized in that, described step 4) in centered by anchor cable, limit a rectangular area, stake position be vertically set with four of rectangular area angles and draw hole, draw hole according to stake position and foundation pile is set.
9. construction method as claimed in claim 7, is characterized in that, described step 5) concrete steps as follows:
5-1) in described step 4) in the top of four foundation stakes that arranges put steel bushing respectively, steel hoop steel bushing is set at upper horizontal and welds with steel hoop;
5-2) in step 5-1) in foundation pile top in the four foundation stakes that arrange in an object line jack is respectively set, arrange reaction frame on the top of jack, anchor cable is through reaction frame;
5-3) in step 5-2) in the top of reaction frame that arranges at least two hoist cables are vertically set;
5-4) distance step 5-2) in the upper horizontal of reaction frame that arranges a support is set, support is arranged on the ground by four root posts, and four root posts are arranged on four angles place of another rectangle;
5-5) utilize step 4 described in reaction frame and jack pair) in foundation pile on rectangle diagonal carry out piling to the position of specifying, provide counter-force by anchor cable;
5-6) by support lift reaction frame;
5-7) utilize step 4 described in another group reaction frame and jack pair) in foundation pile on another diagonal of rectangle carry out piling to the position of specifying;
5-8) by support lift 5-7) in another group reaction frame and jack;
5-9) draw hole place in each stake position to continue to arrange a joint foundation pile, at the top of this joint foundation pile, cover has steel bushing, and welds with steel hoop;
5-10) repeat step 5-5) to step 5-9), until meet the requirements of position.
10. construction method as claimed in claim 7, is characterized in that, described step 6) concrete setting steps as follows:
6-1) from described step 5) scope that the stake top that formed down sets, the external surface along the stake of many foundation vertically arranges many vertical muscle;
6-2) in step 6-1) set up vertical muscle after, be horizontally disposed with the many stirrups stake of many foundation being included in center.
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| CN201510454024.9A CN105002906B (en) | 2015-07-28 | 2015-07-28 | A kind of cluster anchor cable composite pile structure as agent structure column and construction method thereof |
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| CN105002906B (en) | 2016-08-24 |
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