CN112081097A

CN112081097A - Profile steel positioning device for SMW construction method pile and construction method thereof

Info

Publication number: CN112081097A
Application number: CN202011061103.0A
Authority: CN
Inventors: 郑永胜; 朱亚林; 尹鹏; 章好龙; 石鸣; 张斌; 李勇海; 祁伟林; 檀昆; 任世朋; 汪亦显; 胡漳敏; 包良华; 焦灏; 陈菊香; 汪伟军; 余骁; 孙保金
Original assignee: Anhui Jitaiwoke Engineering Technology Co ltd; China Railway Hefei Construction And Municipal Engineering Design And Research Institute Co ltd; Suzhou Xiangcheng Transportation Construction Investment Group Co ltd; Hefei University of Technology; China Tiesiju Civil Engineering Group Co Ltd CTCE Group
Current assignee: Anhui Jitaiwoke Engineering Technology Co ltd; China Railway Hefei Construction And Municipal Engineering Design And Research Institute Co ltd; Suzhou Xiangcheng Transportation Construction Investment Group Co ltd; Hefei University of Technology; China Tiesiju Civil Engineering Group Co Ltd CTCE Group
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2020-12-15

Abstract

The invention discloses a device for positioning section steel of a pile in an SMW (soil mixing wall) construction method and a construction method thereof, and aims to provide a device and a construction method which can avoid section steel downward insertion verticality errors caused by uneven field, reduce H-shaped steel lifting insertion difficulty and improve the efficiency of moving and fixing a positioning device. The section steel positioning device mainly comprises a pair of guide rails, a connecting rod and a guide plate. The pair of connecting rods are arranged horizontally at intervals relatively, two ends of each connecting rod are respectively inserted into the corresponding guide rails, horizontal adjusting mechanisms are arranged at two ends of each guide rail, the upper and lower positions of the guide rails are adjusted to be relatively horizontal through the horizontal adjusting mechanisms, the step of leveling the ground in the process of installing H-shaped steel is avoided, and the construction efficiency is improved; the plugboards at the two ends of the connecting rod are fixedly installed through the insertion of the plugholes on the corresponding guide rails, so that the next group of profile steel can be conveniently positioned; the top fixed mounting of locator card has the deflector, reduces the accuracy that H type pole hoist and mount in-process needs, reduces the operation degree of difficulty.

Description

Profile steel positioning device for SMW construction method pile and construction method thereof

Technical Field

The invention relates to the technical field of piles in an SMW (soil mixing wall) construction method, in particular to a section steel positioning device for piles in the SMW construction method and a construction method thereof.

Background

In the foundation pit enclosure engineering, the construction is generally carried out by adopting a pile of an SMW (soil mixing wall) construction method, the SMW construction method is that a multi-shaft type drilling and digging stirrer drills and digs to a certain depth on site, a cement series reinforcer is sprayed out of a drill bit and is repeatedly mixed and stirred with foundation soil, overlapping construction is carried out among construction units, then H-shaped steel or steel plates are inserted into a cement soil mixture body before the cement soil mixture body is hardened as a stress reinforcing material until the cement is hardened, and a continuous, complete and seamless underground wall body with certain strength and rigidity is formed.

At present, before the operation of the pile in the SMW construction method, a land leveling measure is usually adopted to ensure that the guide rail is flatly laid on the ground, but the absolute flatness of the ground is difficult to ensure in the construction operation, so that the guide rail is inclined, the verticality cannot meet the requirement after the H-shaped steel is inserted downwards, and the integral structural stability of the pile in the SMW construction method is damaged when the verticality has larger deviation; in the construction process of the pile in the SMW construction method, the H-shaped steel is inserted into the rectangular opening of the positioning clamp after being lifted by a crane, and the difficulty in aligning the H-shaped steel with the rectangular opening of the positioning clamp is high due to more external influence factors in construction, particularly in windy weather; after a set of H shaped steel is inserted under and is accomplished, before carrying out the construction of inserting under a set of H shaped steel, need move locator card to next setpoint on the guide rail, common shaped steel locator card is four woods or square steel pipe constitution among the job site, and this kind of common positioning mechanism is difficult for removing and fixing, greatly reduced the efficiency of construction.

Disclosure of Invention

In order to solve the problems, the invention provides a section steel positioning device for a pile in an SMW (soil mixing wall) construction method and a construction method thereof, which improve the positioning accuracy and the construction efficiency, and the specific technical scheme is as follows:

a section steel positioning device for SMW construction method piles comprises a pair of cylindrical guide rails 2 and a pair of connecting rods 4 which are horizontally arranged oppositely;

the two ends of each guide rail are respectively provided with a horizontal adjusting mechanism 3, each horizontal adjusting mechanism 3 comprises a fixed block 33, a screw rod 32 and a turntable bearing 35, the upper end of each screw rod 32 is provided with a rotating handle 31, each fixed block 33 is provided with a level gauge 34, the screw rods 32 vertically penetrate through the fixed blocks 33 and are in threaded connection with the fixed blocks 33, the lower end parts of the screw rods 32 are arranged on the turntable bearings 35, and the turntable bearings 35 are fixedly arranged on a construction site through vertical fixed rods 36;

two ends of each guide rail are fixedly connected with the corresponding fixed blocks 33;

jacks 201 are uniformly formed in the corresponding side surfaces of the pair of guide rails 2, and two ends of each connecting rod are inserted through the matching of the inserting plate 43 and the jacks 201, so that each connecting rod is inserted into the pair of guide rails 2;

during operation, a pair of guide rails 2 are arranged on two sides of the upper end of the groove 1, the pair of guide rails 2 are kept horizontal through the horizontal adjusting mechanism 3, and a square H-shaped steel inserting port is formed at the upper end of the groove 1 corresponding to the pair of connecting rods 4, so that the H-shaped steel can be conveniently positioned and inserted into the groove 1.

Further, every connecting rod 4 is horizontal column, and the extending direction that both ends of connecting rod 4 all are equipped with the installation cavity along connecting rod 4, and picture peg 43 passes through spring 44 level and lays in the installation cavity, and the one end and the spring 44 butt of picture peg 43, the other end of picture peg 43 stretch out the connecting rod tip and peg graft with jack 201 on the corresponding guide rail.

Furthermore, the upper end of the connecting rod is provided with a sliding groove 421 along the extending direction of the connecting rod corresponding to the upper cavity wall of the installation cavity, the inserting plate 43 is vertically inserted with a push rod 42 in a penetrating manner, the upper end of the push rod 42 extends out of the sliding groove 421, and the lower end of the push rod 42 is inserted into the lower cavity wall of the installation cavity through a matched inserting groove 422.

Further, a pair of guide plates 5 are arranged on the H-shaped steel insertion port, each guide plate is an integrally formed bending plate, the lower portion of the bending plate is a connecting portion 51, the upper portion of the bending plate is a guide portion 52, the connecting portions 51 of the pair of guide plates 5 are fixedly connected with the pair of connecting rods 4 respectively, and the guide portions 52 of the pair of guide plates 5 form horn-shaped guide grooves.

The invention also comprises a construction method of the section steel positioning device, which is characterized in that: the method comprises the following operation steps:

step (1): paying off and digging a groove 1 in a construction site;

step (2): guide rails with certain length are respectively laid on two sides parallel to the groove 1, two ends of each guide rail are respectively fixedly arranged on a construction site through a horizontal adjusting mechanism 3,

specifically, the end of each guide rail is correspondingly inserted into the notch of the fixed block 33, and then the fixed rod 36 is driven into the construction site for fixing, so that the installation of the horizontal adjusting mechanism 3 is completed;

and (3): observing the position of vacuole in a level instrument 34 on the horizontal adjusting mechanism 3, adjusting the rotating handle 31 to drive the fixing block 33 to move up and down through the screw rod 32 until the position of vacuole in the level instrument 34 is horizontally centered, and at the moment, arranging each guide rail horizontally relatively;

and (4): aligning two ends of each connecting rod with a corresponding pair of jacks on a pair of guide rails 2 respectively, pushing a push rod 42 along the horizontal direction, driving the inserting plate 43 to move horizontally by the push rod 42 until the two ends of the inserting plate 43 are inserted into the corresponding pair of jacks on the pair of guide rails 2, and pressing the push rod 42 downwards at the moment to enable the lower end part of the push rod 42 to be inserted into the slot 422 for fixing;

and (5): according to the size of the H-shaped steel required by the SMW construction method pile, a pair of guide plates 5 are correspondingly arranged on a pair of connecting rods 4 through connecting parts 51, and a pair of guide parts of the pair of guide plates 5 form a horn-shaped guide groove;

and (6): the crane hoists the H-shaped steel, only the H-shaped steel is required to be aligned to the horn-shaped guide grooves formed by the pair of guide parts on the pair of guide plates 5 during hoisting, and the H-shaped steel is smoothly guided and inserted into the rectangular socket formed by the pair of connecting rods 4 and the pair of guide rails 2 through the guide grooves;

and (7): and (4) after one H-shaped steel construction is finished, pulling out the push rod 42 from the slot 422, aligning the two ends of each connecting rod with the corresponding other pair of slots on the pair of guide rails 2 respectively, and repeating the steps (4) to (6) until all H-shaped steel construction work is finished.

The invention has the following beneficial technical effects:

1. the section steel positioning device of the invention comprises a pair of guide rails, a pair of connecting rods are arranged between the pair of guide rails, and a pair of connecting rods are arranged horizontally at intervals relatively, two ends of each connecting rod are respectively inserted on the corresponding guide rails, two ends of each guide rail are respectively provided with a horizontal adjusting mechanism, each horizontal adjusting mechanism comprises a fixed block, a screw rod with a rotating handle at the upper end and a turntable bearing, each fixed block is provided with a level gauge, the screw rod vertically penetrates through the fixed block and is in threaded connection with the fixed block, the lower end part of the screw rod is arranged on a turntable bearing which is fixedly arranged on a construction site through a vertical fixed rod, the screw rod is rotated to adjust the heights of the two ends of the guide rail, the guide rail is horizontally arranged on the two sides of the groove 1 through an observation level gauge, and then guarantee the location installation of H shaped steel, avoid the in-process of installation H shaped steel to need the step on level and smooth ground, improve the efficiency of construction.

2. According to the invention, the plugboards at two ends of the connecting rod are fixedly installed through the splicing with the jacks on the corresponding guide rails, meanwhile, the installation cavities are formed at two ends of the connecting rod, the relative position of the plugboards in the installation cavities is adjusted through the push rod, the splicing or separation of the plugboards and the jacks can be adjusted, the installation position of the connecting rod is adjusted along the extension direction of the guide rails, namely the position of the splicing port of the H-shaped steel is changed along the transverse extension direction of the groove, after one group of H-shaped steel is completely downwards inserted, the next group of H-shaped steel is conveniently downwards inserted, and.

3. The pair of connecting rods and the guide plate form a square H-shaped steel inserting port at the upper end of the groove, and particularly, the pair of guide parts at the upper part of the guide plate form a horn-shaped guide groove, so that the H-shaped steel is greatly convenient to insert downwards, and the construction efficiency is improved.

Drawings

FIG. 1 is a schematic view of the structure of the positioning device for section steel of the present invention.

FIG. 2 is a schematic sectional view of a-a of FIG. 1.

Fig. 3 is a cross-sectional view b-b of the link of fig. 1.

Fig. 4 is a schematic diagram of the structure of the guide plate of the present invention.

Wherein: 1 groove, 2 pairs of guide rails, 201 insertion holes, 4 pairs of connecting rods, 3 horizontal adjusting mechanisms, 31 rotating handles, 32 screw rods, 33 fixing blocks, 34 gradienters, 35 turntable bearings, 36 fixing rods, 42 push rods, 421 sliding grooves, 422 insertion grooves, 43 insertion plates, 44 springs, 5 pairs of guide plates, 51 connecting parts and 52 guide parts.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Example 1

Referring to fig. 1, a section steel positioning device for a pile of an SMW method comprises a pair of guide rails 2 and a pair of connecting rods 4 which are arranged horizontally and relatively in a column shape;

both ends of each guide rail are provided with a horizontal adjusting mechanism 3,

referring to fig. 2, each horizontal adjusting mechanism 3 comprises a fixed block 33, a screw rod 32 with a rotary handle 31 at the upper end, and a turntable bearing 35, wherein a level gauge 34 is installed on each fixed block 33, the screw rod 32 vertically penetrates through the fixed block 33 and is in threaded connection with the fixed block 33, the lower end of the screw rod 32 is installed on the turntable bearing 35, and the turntable bearing 35 is fixedly installed on a construction site through a vertical fixing rod 36;

See fig. 3, each connecting rod 4 is a horizontal column, and the two ends of each connecting rod 4 are all provided with a mounting cavity along the extending direction of the connecting rod, the inserting plate 43 is horizontally arranged in the mounting cavity through the spring 44, one end of the inserting plate 43 is abutted to the spring 44, and the other end of the inserting plate 43 extends out of the end of the connecting rod 4 and is inserted into the corresponding inserting hole 201 on the guide rail 2.

The upper end of the connecting rod 4 is provided with a sliding groove 421 along the extending direction of the connecting rod corresponding to the upper cavity wall of the installation cavity, the inserting plate 43 is vertically inserted with a push rod 42 in a penetrating manner, the upper end of the push rod 42 extends out of the sliding groove 421, and the lower end of the push rod 42 is inserted into the lower cavity wall of the installation cavity through a matched inserting groove 422.

See fig. 4, a pair of guide plates 5 is arranged on the H-shaped steel insertion port, each guide plate is an integrally formed bending plate, the lower portion of the bending plate is a connecting portion 51, the upper portion of the bending plate is a guide portion 52, the connecting portions of the pair of guide plates 5 are fixedly connected with the pair of connecting rods 4, and the guide portions 52 of the pair of guide plates 5 form horn-shaped guide grooves. The guide way is to the installation guide effect of H shaped steel, improves the accuracy of H shaped steel hoist and mount insertion process, reduces the operation degree of difficulty.

Example 2

The construction method of the section steel positioning device of embodiment 1 is characterized in that: the method comprises the following operation steps:

step (1): paying off and digging a groove 1 in a construction site;

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A shaped steel positioner for SMW worker method stake which characterized in that: comprises a pair of guide rails (2) and a pair of connecting rods (4) which are relatively horizontally arranged in a column shape;

horizontal adjusting mechanisms (3) are arranged at two ends of each guide rail, each horizontal adjusting mechanism (3) comprises a fixed block (33), a screw rod (32) with a rotary handle (31) at the upper end and a turntable bearing (35), a level gauge (34) is installed on each fixed block (33), the screw rod (32) vertically penetrates through the fixed block (33) and is in threaded connection with the fixed block (33), the lower end part of the screw rod (32) is installed on the turntable bearing (35), and the turntable bearing (35) is fixedly installed on a construction site through a vertical fixing rod (36);

two ends of each guide rail are fixedly connected with the corresponding fixed blocks (33);

jacks (201) are uniformly formed in the corresponding side surfaces of the pair of guide rails (2), and two ends of each connecting rod are inserted through the matching of the inserting plate (43) and the jacks (201), so that each connecting rod is inserted into the pair of guide rails (2);

during operation, a pair of guide rails (2) are arranged on two sides of the upper end of the groove (1), the pair of guide rails (2) are kept horizontal through the horizontal adjusting mechanism (3), and a square H-shaped steel inserting port is formed at the upper end of the groove (1) corresponding to the pair of connecting rods (4), so that the H-shaped steel can be conveniently positioned and inserted into the groove (1).

2. The section steel positioning device for the SMW construction method pile as claimed in claim 1, wherein: every connecting rod is horizontal column, and the installation cavity has all been seted up along the extending direction of connecting rod at the both ends of connecting rod, and picture peg (43) are laid in the installation cavity through spring (44) level, the one end and the spring (44) butt of picture peg (43), and the other end of picture peg (43) stretches out the connecting rod tip and pegs graft with jack (201) on the corresponding guide rail.

3. The section steel positioning device for the SMW construction method pile as claimed in claim 2, wherein: the upper chamber wall that the upper end of connecting rod corresponds the installation cavity has seted up spout (421) along the connecting rod extending direction, perpendicular run through on picture peg (43) is inserted and is equipped with push rod (42), and spout (421) are stretched out to the upper end of push rod (42), and the lower extreme of push rod (42) is inserted through complex slot (422) and is established on the lower chamber wall of installation cavity.

4. The section steel positioning device for the SMW construction method pile as claimed in claim 1, wherein: the H-shaped steel splicing port is provided with a pair of guide plates (5), each guide plate is an integrally formed bending plate, the lower portion of each bending plate is a connecting portion (51), the upper portion of each bending plate is a guide portion (52), a pair of connecting portions of the pair of guide plates (5) are fixedly connected with the opposite side faces of the pair of connecting rods (4), and a pair of guide portions of the pair of guide plates (5) form horn-shaped guide grooves.

5. The construction method of the section steel positioning device for the SMW-process pile according to any one of claims 1 to 4, wherein: the method comprises the following operation steps:

step (1): paying off and digging a groove (1) in a construction site;

step (2): guide rails with certain length are respectively laid on two sides parallel to the groove (1), two ends of each guide rail are respectively and fixedly arranged on a construction site through a horizontal adjusting mechanism (3),

specifically, the end part of each guide rail is correspondingly inserted into a notch of the fixed block (33), and then the fixed rod (36) is driven into a construction site for fixing, namely the installation of the horizontal adjusting mechanism (3) is completed;

and (3): observing the position of vacuole in a level meter (34) on the horizontal adjusting mechanism (3), adjusting a rotating handle (31) to drive a fixing block (33) to move up and down through a screw rod (32) until the position of vacuole in the level meter (34) is horizontally centered, and arranging each guide rail horizontally relatively;

and (4): aligning two ends of each connecting rod to a pair of corresponding jacks on a pair of guide rails (2) respectively, pushing a push rod (42) along the horizontal direction, driving a plug board (43) to move horizontally by the push rod (42), inserting the two ends of the plug board (43) into the corresponding jacks on the pair of guide rails (2), and pressing the push rod (42) downwards at the moment to enable the lower end part of the push rod (42) to be inserted into the slot (422) for fixation;

and (5): according to the size of the H-shaped steel required in the SMW construction method pile, a pair of guide plates (5) are correspondingly arranged on a pair of connecting rods (4) through connecting parts (51), and a pair of guide parts of the pair of guide plates (5) form a horn-shaped guide groove;

and (6): the crane hoists the H-shaped steel, the H-shaped steel is only required to be aligned to the horn-shaped guide grooves formed by the pair of guide parts on the pair of guide plates (5) during hoisting, and the H-shaped steel is smoothly guided and inserted into the rectangular socket formed by the pair of connecting rods (4) and the pair of guide rails (2) through the guide grooves;

and (7): and (3) after the construction of one H-shaped steel is finished, pulling out the push rod (42) from the slot (422), aligning two ends of each connecting rod with the other corresponding pair of jacks on the pair of guide rails (2), and repeating the steps (4) to (6).