CN105064355A - Anchor rope composite pile structure as stand column of main structure and construction method of anchor rope composite pile structure - Google Patents
Anchor rope composite pile structure as stand column of main structure and construction method of anchor rope composite pile structure Download PDFInfo
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- CN105064355A CN105064355A CN201510454521.9A CN201510454521A CN105064355A CN 105064355 A CN105064355 A CN 105064355A CN 201510454521 A CN201510454521 A CN 201510454521A CN 105064355 A CN105064355 A CN 105064355A
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Abstract
The invention relates to an anchor rope composite pile structure as a stand column of a main structure and a construction method of the anchor rope composite pile structure. The anchor rope composite pile structure comprises a prefabricated pile and an anchor rope, wherein the bottom of the anchor rope is anchored to a foundation. The anchor rope is arranged in the vertical center of the prefabricated pile in a sleeved manner. A reinforcement cage is arranged in the prefabricated pile. The prefabricated pile is filled with grouting materials. The anchor rope composite pile structure and the construction method thereof have the beneficial effects that capital is saved; excessive anchor ropes are omitted due to a one pile and one anchor structure, and slurry supporting and other technological processes enable the construction period to be shorter; the anchor rope composite pile structure can be used as a stress component of the main structure, and establishment of other bearing components is not needed; the number of anchor rods is small, and therefore cost is reduced; the anchor rope composite pile can effectively avoid hole collapse, diameter shrinkage, pile breakage, interlining and other problems happen in a cast-in-place bored pile during construction, and the quality of formed piles is guaranteed; compared with ordinary pipe piles, the reinforcement cage is arranged in the pile in a lifted manner, concrete is poured into the pipe pile, the horizontal load resisting capacity of the pipe pile is remarkably improved, and the bearing capacity of a single pile is greatly improved; and the pollution of supporting slurry to the surroundings is avoided.
Description
Technical field
The invention belongs to construction engineering technical field, be specifically related to a kind of 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) composite 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, anchor pole or reserved anchor pole is buried underground; 3, reaction frame is installed and prepares 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, when prospecting is failed to understand or meets boulder, often causes piling difficulty, when 3, constructing in resident compact district, occupy place comparatively large, have considerable influence 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 provide a kind of simple to operate, efficiency of construction is high, provides counter-force piling by anchor cable, as the anchor cable composite pile structure of agent structure column and construction method thereof.
To achieve these goals, the present invention adopts following technical scheme:
A kind of anchor cable composite pile structure as agent structure column, comprise a preformed pile and the anchor cable of bottom anchor in ground, anchor cable is placed in the vertical intracardiac of preformed pile, preformed pile inside is provided with reinforcing cage, injecting paste material is filled in preformed pile inside, and an anchor eliminates the technological processes such as mud off, shortens construction period, this composite pile as the primary structure member of agent structure, can save cost.
Further, preformed pile is the stake of segment type square-outside and round-inside.
Further, the pile crown of preformed pile is flapper-type, is convenient to preformed pile to be pressed into below ground.
Further, each termination point casing saving described preformed pile has steel bushing, and the steel bushing on preformed pile is connected and fixed by steel hoop, fixes prefabricated pile of multi-segments by steel bushing and steel hoop, fastening firm.
Further, steel hoop is wrapped in the inner and outer wall of each joint preformed pile, is convenient to the stable of total.
Further, preformed pile inwall is provided with irregular projection.
As a construction method for the anchor cable composite pile structure of agent structure column, comprise the following steps:
Step 1): utilize drilling machine to get out anchor cable hole;
Step 2): in step 1) anchor cable is installed, at anchor cable bottom perfusion injecting paste material in the anchor cable hole that gets out;
Step 3): whether the tensile strength measuring anchor cable reaches corresponding requirement, enters step 4 after reaching requirement); If no, return step 2) in;
Step 4): draw hole using anchor cable hole as stake position, vertically arrange preformed pile, anchor cable is at the center of preformed pile;
Step 5): carry out piling and pile extension, utilize pile follower bar that assigned address is delivered in stake;
Step 6): extract pile follower bar, in preformed pile, lift reinforcing cage;
Step 7): concreting in preformed pile, forms composite pile structure;
Step 8): block anchor cable, complete construction.
Further, step 5) comprise the following steps:
5-1) in described step 4) in the upper horizontal of preformed pile support steel plate is set;
5-2) above support steel plate, vertically hollow jack is set;
The buckle preventing anchor cable movement 5-3) is set above jack, carries out piling;
5-4) lift reaction frame and jack, another joint preformed pile is put into the stake jacking row pile extension of last joint preformed pile;
5-5) repeat step 5-1) to 5-4); Until preformed pile to be pressed onto the position of setting.
Further, anchor cable is through the center of described support steel plate, described jack and buckle.
Further, pile follower bar is the rectangular bar that a bottom is narrower than top, inner hollow.
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, preformed pile is set centered by anchor cable, after reaction frame is set, provides counter-force preformed pile to be pressed onto the position of specifying by anchor cable, this construction method, shorten the engineering time, reduce the impact of Construction on Environment, 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; " anchor " eliminates too much anchor cable, 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; Compared with general pile tube, in pile tube, lift reinforcing cage and concreting, the ability of the anti-horizontal loading of pile tube is significantly improved, and its single pile bearing capacity also significantly improves.
4. environmental friendliness; Avoid the pollution of slurry coat method to surrounding environment.
Accompanying drawing explanation
Fig. 1 is the construction process figure of composite pile of the present invention;
Fig. 2 (a)-Fig. 2 (f) is composite pile construction way figure of the present invention;
Wherein: Fig. 2 (a) for machine drilling complete after generalized section;
Fig. 2 (b) for anchor cable lower anchor position constructed after generalized section;
Fig. 2 (c) provides the piling generalized section of counter-force with anchor cable pulling force;
Fig. 2 (d) is piling generalized section continuously;
Stake is depressed into assigned address, places the generalized section of reinforcing cage in stake inside by Fig. 2 (e);
The schematic diagram of Fig. 2 (f) concreting in reinforcing cage;
Fig. 3 is the enlarged diagram of preformed pile;
Fig. 4 is preformed pile top partial enlarged drawing in Fig. 2 (c);
Fig. 5 is the partial enlarged drawing of pile crown in Fig. 2 (c) when preformed pile cross section that the embodiment of the present invention provides is square-outside and round-inside shape;
Fig. 6 is the A-A sectional view of Fig. 2 (b) when preformed pile cross section that the embodiment of the present invention provides is square-outside and round-inside shape;
Fig. 7 is B-B sectional view in Fig. 3 when preformed pile cross section that the embodiment of the present invention provides is square-outside and round-inside shape;
Fig. 8 is the C-C sectional view in Fig. 4 when preformed pile cross section that the embodiment of the present invention provides is square-outside and round-inside shape;
Fig. 9 is the D-D sectional view in Fig. 2 (e) when preformed pile cross section that the embodiment of the present invention provides is square-outside and round-inside shape;
Figure 10 is the E-E sectional view in Fig. 2 (f) when preformed pile cross section that the embodiment of the present invention provides is square-outside and round-inside shape;
The preformed pile pile follower bar longitudinal sectional drawing that Figure 11 provides for the embodiment of the present invention;
In figure, 1 is anchor cable hole; 2 is anchor cable; 3 is anchorage cable anchoring injecting paste material; 4 is preformed pile; 5 is pile crown; 6 is jack; 7 is reinforcing cage; 8 is injecting paste material; 9 is support steel plate; 10 is steel hoop; 11 is buckle, 12. ground, 13. pile follower bars.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in figs. 1-11, a kind of anchor cable composite pile structure as agent structure column, this anchor cable composite pile structure is arranged on ground less than 12, this comprises a preformed pile 4 and the anchor cable 2 of bottom anchor in ground, in preformed pile 4, center vertical is provided with through hole, anchor cable 2 is placed in the through hole of preformed pile 4, preformed pile 4 inside is provided with reinforcing cage 7, injecting paste material 8 is filled in preformed pile 4 inside, as concrete, when prefabrication preformed pile 4, the inner membrance of preformed pile 4 adopts inflation inner membrance, inner membrance there is irregular projection, after reaching intensity Deng the concrete structure of preformed pile 4, inner membrance is dismantled, preformed pile 4 inwall just defines irregular projection, strengthen the connection of preformed pile 4 and injecting cement paste.
Preformed pile 4 is the stake of segment type square-outside and round-inside, or the stake of cylindrical inner circle.
The pile crown 5 of preformed pile 4 is flapper-type pile top.
Each termination point casing saving described preformed pile 4 has steel bushing, and steel bushing and steel hoop 10 weld together.
Steel hoop 10 is wrapped in the inner and outer wall of each joint preformed pile 4.
Fig. 1 is the construction process figure of composite pile structure of the present invention, and as shown in Figure 2, a kind of construction method of the anchor cable composite pile structure as agent structure column, comprises the following steps Specific construction step:
Step 1): utilize drilling machine to get out anchor cable hole 1;
Step 2): in step 1) anchor cable 2 is installed, at anchor cable bottom perfusion anchorage cable anchoring injecting paste material 3 in the anchor cable hole 1 that gets out;
Step 3): whether the tensile strength measuring anchor cable 2 reaches corresponding requirement, enters step 4 after reaching requirement); If no, return step 2) in;
Step 4): draw hole using anchor cable hole 1 as stake position, vertically arrange preformed pile 4, anchor cable 2 is at the center of preformed pile 4;
Step 5): carry out piling and pile extension, utilize pile follower bar 13 that assigned address is delivered in stake, pile follower bar 13 is the rectangular bar that a bottom is narrower than top, inner hollow;
Step 6): extract pile follower bar 13, in preformed pile 4, lift reinforcing cage 7;
Step 7): in preformed pile 4, pass into Grouting Pipe slip casting, maintain the grouting pressure of setting, concreting, form composite pile structure;
Step 8): adopt the hidden construction process excavation underground space to be used as underground garage or other purposes;
Step 9): block anchor cable 2, complete construction.
Step 5) comprise the following steps:
5-1) in described step 4) in the upper horizontal of preformed pile 4 support steel plate 9 is set;
5-2) hollow jack 6 is vertically set above support steel plate 9;
The buckle 11 preventing anchor cable 2 movement 5-3) is set above jack 6, provides counter-force by anchor cable 2, carry out piling;
5-4) lift reaction frame and jack 6, pile extension is carried out by fastening steel sleeve and steel hoop 10 in the stake top that another joint preformed pile 4 puts into last joint preformed pile 4;
5-5) repeat step 5-1) to 5-4); Until preformed pile 4 to be pressed onto the position of setting.
Anchor cable 2 is through the center of support steel plate 9, jack 6 and buckle 11.
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 an anchor cable composite pile structure for agent structure column, it is characterized in that, comprise a preformed pile and the anchor cable of bottom anchor in ground, anchor cable be placed on preformed pile vertical in intracardiac, preformed pile inside is provided with reinforcing cage, and injecting paste material is filled in preformed pile inside.
2. a kind of anchor cable composite pile structure as agent structure column as claimed in claim 1, it is characterized in that, described preformed pile is the stake of segment type square-outside and round-inside.
3. a kind of anchor cable composite pile structure as agent structure column as claimed in claim 1, it is characterized in that, the pile crown of described preformed pile is flapper-type.
4. a kind of anchor cable composite pile structure as agent structure column as claimed in claim 2, it is characterized in that, each termination point casing saving described preformed pile has steel bushing, and the steel bushing on preformed pile is connected and fixed by steel hoop.
5. a kind of anchor cable composite pile structure as agent structure column as claimed in claim 4, it is characterized in that, described steel hoop is wrapped in the inner and outer wall that each saves described preformed pile.
6. a kind of anchor cable composite pile structure as agent structure column as claimed in claim 1, it is characterized in that, described preformed pile inwall is provided with irregular projection.
7., as a construction method for the anchor cable composite pile structure of agent structure column, it is characterized in that, comprise the following steps:
Step 1): utilize drilling machine to get out anchor cable hole;
Step 2): in step 1) anchor cable is installed, at anchor cable bottom perfusion injecting paste material in the anchor cable hole that gets out;
Step 3): whether the tensile strength measuring anchor cable reaches corresponding requirement, enters step 4 after reaching requirement); If no, return step 2) in;
Step 4): draw hole using anchor cable hole as stake position, vertically arrange preformed pile, anchor cable is at the center of preformed pile;
Step 5): carry out piling and pile extension, utilize pile follower bar that assigned address is delivered in stake;
Step 6): extract pile follower bar, in preformed pile, lift reinforcing cage;
Step 7): concreting in preformed pile, forms composite pile structure;
Step 8): adopt the hidden construction process excavation underground space to be used as underground garage or other purposes;
Step 9): block anchor cable, complete construction.
8. construction method as claimed in claim 7, is characterized in that, described step 5) comprise the following steps:
5-1) in described step 4) in the upper horizontal of preformed pile support steel plate is set;
5-2) above support steel plate, vertically hollow jack is set;
The buckle preventing anchor cable movement 5-3) is set above jack, carries out piling;
5-4) lift reaction frame and jack, another joint preformed pile is put into the stake jacking row pile extension of last joint preformed pile;
5-5) repeat step 5-1) to 5-4); Until preformed pile to be pressed onto the position of setting.
9. construction method as claimed in claim 8, is characterized in that, described anchor cable is through the center of described support steel plate, described jack and described buckle.
10. construction method as claimed in claim 8, it is characterized in that, described pile follower bar is the rectangular bar that a bottom is narrower than top, inner hollow.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510454521.9A CN105064355B (en) | 2015-07-28 | 2015-07-28 | A kind of anchor cable composite pile structure and its construction method as agent structure column |
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| CN201510454521.9A CN105064355B (en) | 2015-07-28 | 2015-07-28 | A kind of anchor cable composite pile structure and its construction method as agent structure column |
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| CN105064355B CN105064355B (en) | 2017-03-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111877373A (en) * | 2020-07-28 | 2020-11-03 | 惠州市城乡建筑工程有限公司 | Slope reinforcing apparatus for building municipal works |
| CN112518964A (en) * | 2020-11-17 | 2021-03-19 | 中国葛洲坝集团机械船舶有限公司 | Circular inflatable core mold supporting device and using method |
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| CN112518964B (en) * | 2020-11-17 | 2022-03-18 | 中国葛洲坝集团机械船舶有限公司 | Circular inflatable core mold supporting device and using method |
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| CN105064355B (en) | 2017-03-15 |
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