CN204298819U - Anchor static pressure pile preloading pressure pile sealing working device - Google Patents
Anchor static pressure pile preloading pressure pile sealing working device Download PDFInfo
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- CN204298819U CN204298819U CN201420740196.3U CN201420740196U CN204298819U CN 204298819 U CN204298819 U CN 204298819U CN 201420740196 U CN201420740196 U CN 201420740196U CN 204298819 U CN204298819 U CN 204298819U
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- 238000007789 sealing Methods 0.000 title claims abstract description 20
- 230000003068 static effect Effects 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 139
- 239000010959 steel Substances 0.000 claims abstract description 139
- 238000003466 welding Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
本实用新型公开了锚杆静压桩预加压力封桩工作装置，属于封桩工作装置，其结构包括压桩架和千斤顶，压桩架包括左侧高强钢筋、右侧高强钢筋、压桩孔前侧次梁、压桩孔后侧次梁、主梁和钢筋锚固端；千斤顶与新桩之间设置有承压装置，承压装置包括钢柱、钢柱左侧锚杆、钢柱右侧锚杆，钢柱包括钢柱本体和设置在钢柱本体外侧的连接侧翼，钢柱左侧锚杆和钢柱右侧锚杆分别设置压桩孔的左右两侧，外侧的连接侧翼分别穿过钢柱左侧锚杆和钢柱右侧锚杆，其上端并通过紧固螺母紧固。本实用新型具有桩压至设计值后可以将压桩架和千斤顶拆除，有效克服了传统封桩施工方式引起的桩体回弹、建筑物附加沉降等问题，大大缩短了施工工期，节约了施工成本等特点。
The utility model discloses a pre-loaded pressure pile sealing working device for an anchor static pressure pile, which belongs to the pile sealing working device. The structure includes a pile pressing frame and a jack. The front secondary beam, the rear secondary beam of the pressure pile hole, the main beam and the anchorage end of the steel bar; a pressure-bearing device is arranged between the jack and the new pile, and the pressure-bearing device includes the steel column, the anchor rod on the left side of the steel column, and the right side of the steel column Anchors, the steel column includes the steel column body and the connecting flanks arranged outside the steel column body, the anchor rods on the left side of the steel column and the anchor rods on the right side of the steel column are respectively set on the left and right sides of the pile pressure hole, and the connecting flanks on the outside pass through the The anchor rod on the left side of the steel column and the anchor rod on the right side of the steel column have their upper ends fastened by fastening nuts. The utility model can remove the pile press frame and the jack after the pile is pressed to the design value, effectively overcomes the problems of pile rebound and additional settlement of the building caused by the traditional pile sealing construction method, greatly shortens the construction period and saves construction costs. cost and other characteristics.
Description
技术领域technical field
本实用新型涉及一种封桩工作装置，尤其是一种锚杆静压桩预加压力封桩工作装置。The utility model relates to a working device for sealing piles, in particular to a working device for sealing piles with pre-loaded pressure for anchor static pressure piles.
背景技术Background technique
锚杆静压桩是加固地基的一种重要方法，原理是利用上部结构的自重提供荷载，再利用千斤顶通过反力架将砼方桩(或钢管桩)压入地基土中。当桩压至设计值并卸掉千斤顶后，桩顶会有15～45mm的回弹，若不带压力进行封桩，上部荷载会使锚杆静压桩不同程度地再次下沉，从而引起建筑物附加沉降，无法保证加固效果。因此，为了使新加桩与原基础协调工作，需防止静压桩完成静压施工后回弹，需对静压桩进行预加压力封桩。Anchor static pressure pile is an important method to strengthen the foundation. The principle is to use the self-weight of the superstructure to provide the load, and then use the jack to press the concrete square pile (or steel pipe pile) into the foundation soil through the reaction frame. When the pile is pressed to the design value and the jack is removed, the top of the pile will have a rebound of 15-45mm. If the pile is sealed without pressure, the upper load will cause the anchor static pressure pile to sink again to varying degrees, causing construction damage. The additional settlement of the material cannot guarantee the reinforcement effect. Therefore, in order to make the newly added pile work in harmony with the original foundation, it is necessary to prevent the static pressure pile from rebounding after the static pressure construction is completed, and the static pressure pile needs to be preloaded and sealed.
通常的做法是，锚杆静压桩压至设计值后，在不卸荷的情况下，用早强微膨胀细石混凝土将桩与基础浇筑在一起，并在新浇混凝土强度达到设计强度的90％后方可卸载，这期间一直占用压桩架和千斤顶，并且延长了回填土的时间，大大增加了施工时间和施工成本。The usual practice is that after the anchor static pressure pile is pressed to the design value, without unloading, the pile and the foundation are poured together with early-strength micro-expansion fine stone concrete, and the strength of the newly poured concrete reaches the design strength. It can be unloaded after 90% of the pile, and the pile press frame and jack have been occupied during this period, and the time for backfilling is prolonged, which greatly increases the construction time and construction cost.
目前，还未有好的解决方案。Currently, there is no good solution.
实用新型内容Utility model content
本实用新型的技术任务是针对上述现有技术中的不足提供一种锚杆静压桩预加压力封桩工作装置，该锚杆静压桩预加压力封桩工作装置具有在桩压至设计值后可以将压桩架和千斤顶拆除，有效克服了传统封桩施工方式引起的桩体回弹、建筑物附加沉降等问题，大大缩短了施工工期，节约了施工成本的特点。The technical task of this utility model is to provide an anchor static pressure pile preloading pressure pile sealing working device for the above-mentioned deficiencies in the prior art. The anchor bolt static pressure pile preloading pressure pile sealing working device has After the value is reached, the pile pressure frame and jack can be removed, which effectively overcomes the problems of pile springback and additional building settlement caused by the traditional pile sealing construction method, greatly shortens the construction period and saves construction costs.
本实用新型解决其技术问题所采用的技术方案是：它包括压桩架和千斤顶，所述的压桩架包括左侧高强钢筋、右侧高强钢筋、压桩孔前侧次梁、压桩孔后侧次梁、主梁和钢筋锚固端；所述的左侧高强钢筋和右侧高强钢筋分别包括两个，依次为左前侧高强钢筋、左后侧高强钢筋、右前侧高强钢筋和右后侧高强钢筋，所述的压桩孔前侧次梁的左右两端分别穿过左前侧高强钢筋和右前侧高强钢筋，其上部通过钢筋锚固端固定；所述的压桩孔后侧次梁的左右两端分别穿过左后侧高强钢筋和右后侧高强钢筋，其上部通过钢筋锚固端固定；所述的主梁设置在压桩孔前侧次梁和压桩孔后侧次梁的下部中间位置，所述的千斤顶设置在主梁的下部，并带有压力表；所述的左侧高强钢筋与右侧高强钢筋分别通过机械连接的方式与预埋在承台内的预埋螺杆相连；千斤顶与新桩之间设置有承压装置，所述的承压装置包括钢柱、钢柱左侧锚杆、钢柱右侧锚杆，所述的钢柱包括钢柱本体和设置在钢柱本体外侧的连接侧翼，所述的钢柱本体设置在千斤顶与新桩之间，所述的钢柱左侧锚杆和钢柱右侧锚杆分别设置压桩孔的左右两侧，所述的外侧的连接侧翼分别穿过钢柱左侧锚杆和钢柱右侧锚杆，其上端并通过紧固螺母紧固。The technical scheme adopted by the utility model to solve its technical problems is: it includes a pile-pressing frame and a jack, and the pile-pressing frame includes a left high-strength steel bar, a right high-strength steel bar, a secondary beam on the front side of the pile-pressing hole, and a pile-pressing hole. The rear side secondary beam, the main beam and the anchorage end of the steel bar; the left high-strength steel bar and the right high-strength steel bar respectively include two, followed by the left front side high-strength steel bar, the left rear side high-strength steel bar, the right front side high-strength steel bar and the right rear side High-strength steel bars, the left and right ends of the front side secondary beam of the pile pressure hole pass through the left front side high-strength steel bar and the right front side high-strength steel bar respectively, and its upper part is fixed by the anchorage end of the steel bar; the left and right sides of the rear side secondary beam of the described pile pressure hole The two ends pass through the high-strength steel bars on the left rear side and the high-strength steel bars on the right rear side respectively, and the upper part is fixed by the anchorage end of the steel bars; position, the jack is set on the lower part of the main beam, and has a pressure gauge; the left high-strength steel bar and the right high-strength steel bar are respectively connected to the pre-embedded screws embedded in the cap through mechanical connection; A pressure-bearing device is arranged between the jack and the new pile. The pressure-bearing device includes a steel column, an anchor rod on the left side of the steel column, and an anchor rod on the right side of the steel column. The steel column includes the steel column body and the steel column The connecting flanks on the outside of the body, the steel column body is set between the jack and the new pile, the left anchor rod of the steel column and the right anchor rod of the steel column are respectively arranged on the left and right sides of the pile pressure hole, and the described The connecting flanks on the outside pass through the anchor rods on the left side of the steel column and the anchor rods on the right side of the steel column respectively, and the upper ends thereof are fastened by fastening nuts.
所述连接侧翼为分体式结构，包括左侧连接侧翼和右侧连接侧翼，所述的左侧连接侧翼和右侧连接侧翼分别设置在钢柱本体的左右两端，并通过焊接方式相连接。The connecting wing is a split structure, including a left connecting wing and a right connecting wing. The left connecting wing and the right connecting wing are respectively arranged at the left and right ends of the steel column body and connected by welding.
所述的连接侧翼为一体式结构，设置在钢柱本体的上部，其连接侧翼的长度大于钢柱本体的直径，左右两端分别伸出钢柱本体，所述的钢柱本体与连接侧翼通过焊接方式相连接。The connecting wing is an integrated structure, which is arranged on the upper part of the steel column body. The length of the connecting wing is greater than the diameter of the steel column body, and the left and right ends respectively protrude from the steel column body. The steel column body and the connecting wing pass through connected by welding.
所述的左侧高强钢筋与右侧高强钢筋与预埋在承台内的预埋螺杆分别通过连接螺母相连。The high-strength steel bars on the left side and the high-strength steel bars on the right side are respectively connected with the pre-embedded screw rods embedded in the caps through connecting nuts.
本实用新型的锚杆静压桩预加压力封桩工作装置和现有技术相比，具有以下突出的有益效果：设置有承压装置，在桩压至设计值后可以将压桩架和千斤顶拆除，有效克服了传统封桩施工方式引起的桩体回弹、建筑物附加沉降等问题，大大缩短了施工工期，节约了施工成本，压桩架通过连接螺母与预埋在承台内的预埋螺杆相连，缩短了压桩架的拆卸时间等特点。Compared with the prior art, the anchor static pressure pile preloading pressure pile sealing working device of the utility model has the following outstanding beneficial effects: a pressure bearing device is provided, and the pile pressure frame and the jack can be installed after the pile is pressed to the design value. The demolition effectively overcomes the problems of pile springback and additional building settlement caused by the traditional pile sealing construction method, greatly shortens the construction period and saves construction costs. Buried screw rods are connected, which shortens the dismantling time of the pile pressing frame and other characteristics.
附图说明Description of drawings
附图1是连接侧翼为分体式结构时的锚杆静压桩预加压力封桩工作装置的主视结构示意图；Accompanying drawing 1 is the main view structure schematic diagram of the anchor static pressure pile preloading pressure pile sealing working device when the connecting flank is a split structure;
附图2是图1所示的右视结构示意图；Accompanying drawing 2 is the right view structural representation shown in Fig. 1;
附图3是图1所示的俯视结构示意图；Accompanying drawing 3 is the top view structure diagram shown in Fig. 1;
附图4连接侧翼为一体式结构时的锚杆静压桩预加压力封桩工作装置的主视结构示意图；Accompanying drawing 4 is the schematic structural diagram of the main view of the anchor static pressure pile preloading pressure pile sealing working device when the wing is connected as an integrated structure;
附图5是图4所示的俯视结构示意图；Accompanying drawing 5 is the top view structure schematic diagram shown in Fig. 4;
附图6是图1所示的承压装置的俯视结构示意图；Accompanying drawing 6 is the top structural schematic diagram of the pressure bearing device shown in Fig. 1;
附图7是图4所示的承压装置的俯视结构示意图；Accompanying drawing 7 is the top structural schematic diagram of the pressure bearing device shown in Fig. 4;
附图标记说明：Explanation of reference signs:
1、压桩架，11、左侧高强钢筋，111、左前侧高强钢筋，112、左后侧高强钢筋，12、右侧高强钢筋，121、右前侧高强钢筋，122、右后侧高强钢筋，13、压桩孔前侧次梁，14、压桩孔后侧次梁，15、主梁，16、钢筋锚固端；1. Pile press frame, 11, left high-strength steel bar, 111, left front high-strength steel bar, 112, left rear high-strength steel bar, 12, right high-strength steel bar, 121, right front high-strength steel bar, 122, right rear high-strength steel bar, 13. The secondary beam on the front side of the pile hole, 14. The secondary beam on the back side of the pile hole, 15. The main beam, 16. The anchorage end of the steel bar;
2、千斤顶；2. Jack;
3、压力表；3. Pressure gauge;
4、承台；4. Bearing platform;
5、预埋螺杆；5. Embedded screw;
6、新桩；6. New piles;
7、承压装置，71、钢柱，711、钢柱本体，712、连接侧翼，72、钢柱左侧锚杆，73、钢柱右侧锚杆，74、紧固螺母；7. Pressure-bearing device, 71, steel column, 711, steel column body, 712, connecting flank, 72, anchor rod on the left side of the steel column, 73, anchor rod on the right side of the steel column, 74, fastening nut;
8、压桩孔；8. Pile pressure hole;
9、连接螺母。9. Connecting nuts.
具体实施方式Detailed ways
参照说明书附图1至附图7对本实用新型的锚杆静压桩预加压力封桩工作装置作以下详细地说明。Referring to accompanying drawings 1 to 7 of the description, the working device for preloading pressure pile sealing of anchor static pressure piles of the present utility model will be described in detail below.
本实用新型的锚杆静压桩预加压力封桩工作装置，其结构包括压桩架1和千斤顶2，所述的压桩架1包括左侧高强钢筋11、右侧高强钢筋12、压桩孔前侧次梁13、压桩孔后侧次梁14、主梁15和钢筋锚固端16；所述的左侧高强钢筋11和右侧高强钢筋12分别包括两个，依次为左前侧高强钢筋111、左后侧高强钢筋112、右前侧高强钢筋121和右后侧高强钢筋122，所述的压桩孔前侧次梁13的左右两端分别穿过左前侧高强钢筋111和右前侧高强钢筋121，其上部通过钢筋锚固端16固定；所述的压桩孔后侧次梁14的左右两端分别穿过左后侧高强钢筋112和右后侧高强钢筋122，其上部通过钢筋锚固端16固定；所述的主梁15设置在压桩孔前侧次梁13和压桩孔后侧次梁14的下部中间位置，所述的千斤顶13设置在主梁15的下部，并带有压力表3；所述的左侧高强钢筋11与右侧高强钢筋12分别通过机械连接的方式与预埋在承台4内的预埋螺杆5相连；千斤顶2与新桩6之间设置有承压装置7，所述的承压装置7包括钢柱71、钢柱左侧锚杆72、钢柱右侧锚杆73，所述的钢柱71包括钢柱本体711和设置在钢柱本体711外侧的连接侧翼712，所述的钢柱本体711设置在千斤顶2与新桩6之间，所述的钢柱左侧锚杆72和钢柱右侧锚杆73分别设置压桩孔8的左右两侧，所述的外侧的连接侧翼712分别穿过钢柱左侧锚杆72和钢柱右侧锚杆73，其上端并通过紧固螺母74紧固。The utility model of the anchor static pressure pile preloading pressure pile sealing working device, its structure includes a pile pressure frame 1 and a jack 2, and the pile pressure frame 1 includes a left high-strength steel bar 11, a right high-strength steel bar 12, a pile pressure pile The secondary beam 13 on the front side of the hole, the secondary beam 14 on the rear side of the pile hole, the main beam 15 and the anchorage end 16 of the steel bar; the left high-strength steel bar 11 and the right high-strength steel bar 12 respectively include two, followed by the left front side high-strength steel bar 111. The left rear high-strength steel bar 112, the right front high-strength steel bar 121 and the right rear high-strength steel bar 122, the left and right ends of the front secondary beam 13 of the pressure pile hole pass through the left front high-strength steel bar 111 and the right front high-strength steel bar respectively 121, its top is fixed by the steel bar anchor end 16; the left and right ends of the side secondary beam 14 behind the pile hole pass through the left rear high-strength steel bar 112 and the right rear high-strength steel bar 122 respectively, and its top passes through the steel bar anchor end 16 Fixed; the main beam 15 is arranged at the lower middle position of the front side secondary beam 13 of the pile pressing hole and the rear side secondary beam 14 of the pile pressing hole, and the described jack 13 is arranged at the bottom of the main beam 15 and has a pressure gauge 3. The high-strength steel bar 11 on the left side and the high-strength steel bar 12 on the right side are respectively connected to the pre-embedded screw 5 embedded in the cap 4 through mechanical connection; a pressure-bearing device is arranged between the jack 2 and the new pile 6 7. The pressure bearing device 7 includes a steel column 71, an anchor rod 72 on the left side of the steel column, and an anchor rod 73 on the right side of the steel column. The steel column 71 includes a steel column body 711 and a steel column body 711 outside Connect the side wings 712, the steel column body 711 is arranged between the jack 2 and the new pile 6, and the anchor rod 72 on the left side of the steel column and the anchor rod 73 on the right side of the steel column are respectively arranged on the left and right sides of the pile pressure hole 8 , the outer connecting flanks 712 respectively pass through the anchor rod 72 on the left side of the steel column and the anchor rod 73 on the right side of the steel column, and the upper ends thereof are fastened by fastening nuts 74 .
所述连接侧翼712为分体式结构，包括左侧连接侧翼和右侧连接侧翼，所述的左侧连接侧翼和右侧连接侧翼分别设置在钢柱本体711的左右两端，并通过焊接方式相连接。The connecting wing 712 is a split structure, including a left connecting wing and a right connecting wing. The left connecting wing and the right connecting wing are respectively arranged at the left and right ends of the steel column body 711 and connected by welding. connect.
所述的连接侧翼712为一体式结构，设置在钢柱本体711的上部，其连接侧翼712的长度大于钢柱本体711的直径，左右两端分别伸出钢柱本体711，所述的钢柱本体711与连接侧翼712通过焊接方式相连接。The connecting wing 712 is an integral structure, which is arranged on the upper part of the steel column body 711. The length of the connecting wing 712 is greater than the diameter of the steel column body 711, and the left and right ends respectively protrude from the steel column body 711. The steel column The main body 711 is connected to the connecting wing 712 by welding.
所述的左侧高强钢筋11与右侧高强钢筋12与预埋在承台4内的预埋螺杆5分别通过连接螺母9相连。可以方便地安装和拆除压桩架1，节省时间。The left high-strength steel bar 11 and the right high-strength steel bar 12 are connected to the embedded screw rod 5 embedded in the platform 4 through connecting nuts 9 respectively. The pile pressing frame 1 can be conveniently installed and removed, saving time.
所述的承压装置7的钢柱71可以为实心钢柱；为了降低成本，也可以为钢管混凝土柱。The steel column 71 of the pressure bearing device 7 can be a solid steel column; in order to reduce costs, it can also be a steel tube concrete column.
通过压桩架1和千斤顶2压桩，当桩压至设计值后，按设计要求砍桩至设计标高，然后将承压装置7的钢柱本体711外侧的连接侧翼712的两端分别穿过钢柱左侧锚杆72和钢柱右侧锚杆73，再将钢柱左侧锚杆72和钢柱右侧锚杆72上套入紧固螺母74，将钢柱本体711置于压桩孔8内的新桩6上，此时，将压桩架1上的千斤顶2对钢柱71逐步进行施压，再次将桩压至设计压力值，稳住压力，然后将连接侧翼712上部的紧固螺母74拧紧，使得压力表3的值降为0为止，此时将压桩架1和千斤顶2移除，然后往压柱孔8内浇注高强微膨胀细石混凝土进行封桩，振捣密实。压桩架1和千斤顶2可以进行下一处的封桩操作。After the pile is pressed to the design value by the pile pressing frame 1 and the jack 2, the pile is cut to the design elevation according to the design requirements, and then the two ends of the connecting flanks 712 on the outside of the steel column body 711 of the pressure-bearing device 7 are respectively passed through The anchor rod 72 on the left side of the steel column and the anchor rod 73 on the right side of the steel column, and then the anchor rod 72 on the left side of the steel column and the anchor rod 72 on the right side of the steel column are inserted into the fastening nut 74, and the steel column body 711 is placed on the pressure pile On the new pile 6 in the hole 8, at this time, the jack 2 on the pile pressing frame 1 is gradually applied to the steel column 71, and the pile is pressed to the design pressure value again, and the pressure is stabilized, and then the top of the connecting wing 712 Tighten the fastening nut 74 until the value of the pressure gauge 3 drops to 0. At this time, remove the pile pressure frame 1 and the jack 2, and then pour high-strength micro-expansion fine stone concrete into the pressure column hole 8 to seal the pile and vibrate Dense. The pile pressing frame 1 and the jack 2 can carry out the next pile sealing operation.
除说明书所述的技术特征外，均为本专业技术人员的已知技术。Except for the technical features described in the instructions, all are known technologies by those skilled in the art.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358260A (en) * | 2014-11-29 | 2015-02-18 | 宋双阳 | Anchor static pressure pile preloading pressure pile sealing working device |
| CN110499760A (en) * | 2019-09-03 | 2019-11-26 | 中冶京诚工程技术有限公司 | Anchor rod pile feeder |
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- 2014-11-29 CN CN201420740196.3U patent/CN204298819U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358260A (en) * | 2014-11-29 | 2015-02-18 | 宋双阳 | Anchor static pressure pile preloading pressure pile sealing working device |
| CN110499760A (en) * | 2019-09-03 | 2019-11-26 | 中冶京诚工程技术有限公司 | Anchor rod pile feeder |
| CN110499760B (en) * | 2019-09-03 | 2024-02-06 | 中冶京诚工程技术有限公司 | Anchor pile feeder |
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