阅读说明：本技术 一种基坑桩锚支护结构及施工方法 (Foundation pit pile anchor supporting structure and construction method ) 是由 杨宗琦 秦毅 马国馨 曲严锟 崔杨杨 于 2020-11-09 设计创作，主要内容包括：本发明涉及一种基坑桩锚支护结构及施工方法,属于建筑施工技术领域,用于解决传统基坑支护结构中锚杆与支护桩之间的连接牢固性较差的问题。该支护结构包括固定于地面的支护桩以及用于拉动支护桩的锚杆,支护桩上开设有与锚杆相适应的通孔,锚杆外壁铰接有若干挡位板,通孔内部设置有用于张紧支护桩与锚杆的填充件,锚杆上螺纹配合有将填充件压紧在支护桩一侧的第一螺母,以及将挡位板压紧在支护桩另一侧的第二螺母；锚杆上设置有与挡位板对应的弹性件。通过第一螺母将填充件压紧在支护桩一侧,通过第二螺母将挡位板压紧在支护桩另一侧,从锚杆两侧对支护桩进行固定,增强了锚杆与支护桩之间连接紧固性,为基坑挡土提供了良好的支撑效果。(The invention relates to a foundation pit pile-anchor supporting structure and a construction method, belongs to the technical field of building construction, and is used for solving the problem that the firmness of connection between an anchor rod and a supporting pile in the traditional foundation pit supporting structure is poor. The supporting structure comprises a supporting pile fixed on the ground and an anchor rod used for pulling the supporting pile, wherein a through hole matched with the anchor rod is formed in the supporting pile, a plurality of baffle plates are hinged to the outer wall of the anchor rod, a filling part used for tensioning the supporting pile and the anchor rod is arranged in the through hole, a first nut used for pressing the filling part on one side of the supporting pile and a second nut used for pressing the baffle plate on the other side of the supporting pile are matched on the anchor rod in a threaded mode; the anchor rod is provided with an elastic piece corresponding to the stop plate. Compress tightly the packing through first nut in a fender pile one side, will keep off the position board through the second nut and compress tightly at a fender pile opposite side, fix a fender pile from stock both sides, strengthened the anchor rod and connected fastening nature between a fender pile, keep off the soil for the foundation ditch and provide good supporting effect.)

1. The utility model provides a foundation ditch stake anchor supporting construction which characterized in that includes:

the supporting pile is fixed on the ground and is provided with a through hole;

the outer wall of the anchor rod is hinged with a plurality of baffle plates;

the through-hole inner wall is provided with and is used for the tensioning the packing of fender pile and stock, screw-thread fit is equipped with first nut and second nut on the stock, first nut be used for with the packing compresses tightly in a fender pile one side, the second nut be used for with keep off the position board and compress tightly the second nut at a fender pile opposite side.

2. The foundation pit pile anchor supporting structure of claim 1, wherein the filler member comprises a sleeve and a stopper disc fixedly connected to an end of the sleeve.

3. The foundation pit pile-anchor supporting structure of claim 2, wherein the sleeve and the stopper disc are made of a metal material.

4. The foundation pit pile anchor supporting structure of claim 2, wherein the length of the sleeve is smaller than the length of the through hole.

5. The foundation pit pile anchor supporting structure according to claim 2, wherein a clamping groove adapted to the baffle plate is formed in the outer wall of the anchor rod, one end of the anchor rod is rotatably connected to the inside of the clamping groove through a pin shaft, and the elastic member is arranged inside the clamping groove.

6. The foundation pit pile anchor supporting structure according to claim 1, wherein the elastic member is a rubber pad or a silicone pad.

7. A construction method of a foundation pit pile anchor supporting structure is characterized by comprising the following steps:

step S1, providing a support pile, an anchor rod, a gear plate, an elastic piece, a filling piece, a first nut and a second nut for later use;

step S2, forming a through hole in the support pile, enabling one end of the anchor rod to penetrate through the through hole, enabling the baffle plate to penetrate through the through hole along with the anchor rod, automatically lifting the lower end part under the action of the elastic piece after the baffle plate penetrates through the through hole, enabling the baffle plate and the anchor rod to be in a vertical state, and pulling back the anchor rod to enable the baffle plate to be attached to the side surface of the support pile;

step S3, screwing a second nut to enable the second nut to press the baffle plate on the support pile;

step S4, sliding the filling piece to enable the filling piece to be plugged into the through hole so as to fill the gap between the anchor rod and the support pile;

and S5, screwing the first nut, pushing the filling piece into the deep part of the through hole by the first nut, tensioning the anchor rod and the support pile, and fixing the other end of the anchor rod on a slope body, thereby completing the construction of the foundation pit pile anchor support structure.

8. The method of claim 7, wherein the filler element comprises a sleeve and a retention disc fixedly attached to an end of the sleeve.

9. The construction method according to claim 8, wherein the step S4 includes that when the first nut is screwed, the sleeve extends into the through hole, the retaining disc is attached to the outer wall of the support pile as the sleeve enters the through hole, the retaining disc is pressed against the support pile by the first nut, and the anchor rod and the support pile are installed by the second nut.

10. The construction method according to claim 7, wherein a clamping groove matched with the baffle plate is formed in the outer wall of the anchor rod, one end of the anchor rod is rotatably connected inside the clamping groove through a pin shaft, and the elastic element is arranged inside the clamping groove.

Technical Field

The invention relates to the technical field of building construction, in particular to a foundation pit pile anchor supporting structure and a construction method.

Background

The foundation pit engineering is temporary support and soil body reinforcement engineering which is adopted for protecting the smooth construction of open cut of underground space and preventing the surrounding environment from being damaged, and pile-anchor support is a common support form in the field of foundation pit support. The pile anchor support has strong soil retaining capacity, but a plurality of slope protection piles are needed to achieve the expected soil retaining support effect, and prestressed anchor rods are inserted into soil between the piles.

The existing connection of the prestressed anchor rod and the supporting pile is characterized in that the anchor rod is fixed on one side of the supporting pile through an anchorage device, and the other side of the supporting pile has no fixing measure, so that the connection firmness between the anchor rod and the supporting pile is poor.

Therefore, there is a need for an excavation pile anchor supporting structure to solve the above problems.

Disclosure of Invention

The invention aims to provide a foundation pit pile-anchor supporting structure and a construction method, which are used for solving the problem of poor connection firmness between an anchor rod and a supporting pile in the traditional foundation pit supporting structure.

In order to solve the technical problems, the technical scheme of the invention is as follows:

a foundation pit pile anchor supporting structure comprising:

the supporting pile is fixed on the ground and is provided with a through hole;

the outer wall of the anchor rod is hinged with a plurality of baffle plates;

the through-hole inner wall is provided with and is used for the tensioning the packing of fender pile and stock, screw-thread fit is equipped with first nut and second nut on the stock, first nut be used for with the packing compresses tightly in a fender pile one side, the second nut be used for with keep off the position board and compress tightly the second nut at a fender pile opposite side.

Compared with the prior art, the invention has the beneficial technical effects that:

(1) the foundation pit pile-anchor supporting structure comprises a supporting pile fixed on the ground and an anchor rod used for pulling the supporting pile, wherein a through hole matched with the anchor rod is formed in the supporting pile, a plurality of baffle plates are hinged to the outer wall of the anchor rod, a filling piece used for tensioning the supporting pile and the anchor rod is arranged in the through hole, a first nut used for pressing the filling piece on one side of the supporting pile and a second nut used for pressing the baffle plates on the other side of the supporting pile are matched on the anchor rod in a threaded mode; the anchor rod is provided with an elastic piece corresponding to the stop plate. Compress tightly the filler in fender pile one side through first nut, will keep off the position board through the second nut and compress tightly at a fender pile opposite side, fix a fender pile from the stock both sides, the cooperation filler has strengthened the fastening nature of being connected between stock and the fender pile to the tensioning in clearance between stock and the fender pile, keeps off the soil for the foundation ditch and provides good supporting effect.

(2) The construction method of the foundation pit pile-anchor supporting structure comprises the steps of firstly forming a through hole in a supporting pile, enabling one end of an anchor rod to penetrate through the through hole, enabling a baffle plate to penetrate through the through hole along with the anchor rod, automatically lifting the lower end part under the action of an elastic piece after the baffle plate penetrates through the through hole, enabling the baffle plate and the anchor rod to be in a vertical state, pulling back the anchor rod, enabling the baffle plate to be attached to the side surface of the supporting pile, and screwing a second nut, so that the baffle plate is pressed on the supporting pile by the second nut; the filling piece is slid to be plugged into the through hole to fill the gap between the anchor rod and the supporting pile, the first nut is screwed, the first nut pushes the filling piece to enter the deep part of the through hole, so that the anchor rod and the supporting pile are tensioned, and the other end of the anchor rod is fixed on a slope body.

Further, in order to fill the gap between the anchor rod and the support pile, the filling piece comprises a sleeve and a stop disc fixedly connected to the end of the sleeve.

Further, in order to prolong the service life of the sleeve and the gear disc, the sleeve and the gear disc are both made of metal materials.

Further, the length of the sleeve is smaller than that of the through hole. Thereby, after the sleeve all got into the through-hole inside, sleeve tip did not contradict with keeping off the position board to guarantee to keep off the position dish and can laminate smoothly with a fender pile.

Further, the stock outer wall is seted up with the draw-in groove that the fender phase suited, the one end of stock is passed through the round pin hub and is rotated and connect inside the draw-in groove, the elastic component sets up inside the draw-in groove. The blocking plate is accommodated through the arrangement of the clamping groove, and the blocking plate is prevented from protruding out of the anchor rod, so that the diameter of a required through hole is increased, and the connection stability is improved; after the stock drives and keeps off the position board and cross the through-hole, keep off position board one end and lift up automatically under the effect of elastic component, be convenient for keep off the laminating of position board and fender pile lateral wall.

Furthermore, in order to obtain materials conveniently and save cost, the elastic piece is a rubber pad or a silica gel pad.

The invention also provides a construction method of the foundation pit pile anchor supporting structure, which comprises the following steps:

step S1, providing a support pile, an anchor rod, a gear plate, an elastic piece, a filling piece, a first nut and a second nut for later use;

step S2, forming a through hole in the support pile, enabling one end of the anchor rod to penetrate through the through hole, enabling the baffle plate to penetrate through the through hole along with the anchor rod, automatically lifting the lower end part under the action of the elastic piece after the baffle plate penetrates through the through hole, enabling the baffle plate and the anchor rod to be in a vertical state, and pulling back the anchor rod to enable the baffle plate to be attached to the side surface of the support pile;

step S3, screwing a second nut to enable the second nut to press the baffle plate on the support pile;

step S4, sliding the filling piece to enable the filling piece to be plugged into the through hole so as to fill the gap between the anchor rod and the support pile;

and S5, screwing the first nut, pushing the filling piece into the deep part of the through hole by the first nut, tensioning the anchor rod and the support pile, and fixing the other end of the anchor rod on a slope body, thereby completing the construction of the foundation pit pile anchor support structure.

Further, the filling piece comprises a sleeve and a stop disc fixedly connected to the end of the sleeve.

Further, step S4 includes, when screwing first nut, inside the sleeve stretched into the through-hole, along with the sleeve gets into in the through-hole, kept off the position dish and supported pile outer wall laminating, utilized first nut to keep off the position dish and compress tightly on supported pile, cooperation second nut realizes the installation of stock and supported pile.

Further, the stock outer wall is seted up with the draw-in groove that the fender phase suited, the one end of stock is passed through the round pin hub and is rotated and connect inside the draw-in groove, the elastic component sets up inside the draw-in groove.

Drawings

Fig. 1 is a schematic structural view of a foundation pit pile anchor supporting structure of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic view of an anchor rod in the foundation pit pile anchor supporting structure of the present invention;

fig. 4 is a schematic view of a filling member in the foundation pit pile anchor supporting structure of the present invention.

In the figure:

1-supporting a pile; 2-anchor rod; 3-a filling member; 4-a card slot; 5-a first nut; 6-a stop plate; 7-an elastic member; 8-a pin shaft; 9-a through hole; 10-a second nut; 11-a sleeve; 12-a gear disc.

Detailed Description

The following describes the foundation pit pile-anchor supporting structure and construction method according to the present invention in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.

The following describes the foundation pit pile-anchor supporting structure and the construction method of the present invention in detail with reference to fig. 1 to 4.

Example one

As shown in fig. 1 to 4, a foundation pit pile-anchor supporting structure comprises a supporting pile 1 fixed on the ground and an anchor rod 2 for pulling the supporting pile 1, wherein the supporting pile 1 is provided with a through hole 9 adapted to the anchor rod 2, the outer wall of the anchor rod 2 is hinged with a plurality of baffle plates 6, a filling member 3 for tensioning the supporting pile 1 and the anchor rod 2 is arranged in the through hole 9, the anchor rod 2 is in threaded fit with a first nut 5 for pressing the filling member 3 on one side of the supporting pile 1 and a second nut 10 for pressing the baffle plates 6 on the other side of the supporting pile 1; the anchor rod 2 is provided with an elastic member 7 corresponding to the stopper plate 6.

In the present embodiment, it is more preferable that the gap filling member 3 for filling the anchor rod and the support pile includes a sleeve 11 and a stopper disc 12 fixedly connected to an end of the sleeve 11.

In this embodiment, more preferably, when the first nut 5 is screwed, the sleeve 11 extends into the through hole 9, and as the sleeve 11 enters the through hole 9, the retaining disc 12 is attached to the outer wall of the support pile 1, and the retaining disc 12 is pressed against the support pile 1 by the first nut 5, and the anchor rod 2 and the support pile 1 are installed by matching with the second nut 10.

In this embodiment, it is more preferable that the material of the sleeve 11 and the stop disc 12 is not limited, and may be plastic, metal or wood, and in order to ensure that the sleeve 11 and the stop disc 12 have a sufficiently long service life, in this embodiment, it is preferable that the sleeve 11 and the stop disc 12 are made of metal.

In this embodiment, more preferably, the outer wall of the anchor rod 2 is provided with a clamping groove 4 corresponding to the stop plate 6, one end of the anchor rod 2 is rotatably connected inside the clamping groove 4 through a pin 8, and the elastic member 7 is arranged inside the clamping groove 4. The blocking plate 6 is accommodated through the arrangement of the clamping groove 4, and the blocking plate 6 is prevented from protruding out of the anchor rod 2, so that the diameter of the required through hole 9 is increased, and the connection stability is improved; after the anchor rod 2 drives the baffle plate 6 to cross the through hole 9, one end of the baffle plate 6 is automatically lifted under the action of the elastic piece 7, so that the baffle plate 6 is attached to the side wall of the support pile 1 conveniently.

In this embodiment, more preferably, the elastic member 7 is a rubber pad or a silicone pad for convenient material drawing and cost saving.

In this embodiment, it is more preferable that the length of the sleeve 11 is smaller than the length of the through hole 9, and after the sleeve 11 completely enters the through hole 9, the end of the sleeve 11 does not interfere with the retaining plate 6, so as to ensure that the retaining disc 12 can be smoothly attached to the support pile 1.

Example two

Referring to fig. 1 to 4, the present invention further provides a construction method of a foundation pit pile-anchor supporting structure, including:

when the anchor rod retaining device is installed, firstly, a through hole 9 is formed in a supporting pile 1, one end of an anchor rod 2 penetrates through the through hole 9, a baffle plate 6 penetrates through the through hole 9 along with the anchor rod 2, the lower end part of the baffle plate 6 is automatically lifted under the action of an elastic piece 7 after the baffle plate 6 passes through the through hole 9, the baffle plate 6 and the anchor rod 2 are in a vertical state, the anchor rod 2 is pulled back, the baffle plate 6 is attached to the side surface of the supporting pile 1, and a second nut 10 is screwed, so that the baffle plate 6 is pressed on the supporting pile 1 by the second nut 10; the filling member 3 is slid, so that the filling member 3 is plugged into the through hole 9 for filling the gap between the anchor rod 2 and the support pile 1, the first nut 5 is screwed, the first nut 5 pushes the filling member 3 to enter the deep part of the through hole 9, so that the anchor rod 2 and the support pile 1 are tensioned, and then the other end of the anchor rod 2 is fixed on a slope body, so that the construction of the foundation pit pile anchor supporting structure can be completed.

In particular, the filling element 3 comprises a sleeve 11 and a stop disk 12 fixedly connected to the end of the sleeve 11. When twisting first nut 5, inside sleeve 11 stretched into through-hole 9, along with sleeve 11 gets into through-hole 9, kept off position dish 12 and a fender pile 1 outer wall laminating, utilized first nut 5 will keep off position dish 12 and compress tightly on a fender pile 1, cooperation second nut 10 realizes the installation of stock 2 and a fender pile 1.

Particularly, the blocking plate 6 is accommodated through the arrangement of the clamping groove 4, so that the blocking plate 6 is prevented from protruding out of the anchor rod 2, the diameter of the required through hole 9 is increased, and the connection stability is improved; after the anchor rod 2 drives the baffle plate 6 to cross the through hole 9, one end of the baffle plate 6 is automatically lifted under the action of the elastic piece 7, so that the baffle plate 6 is attached to the side wall of the support pile 1 conveniently.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.