A steel positioning device and positioning method for a cement-soil continuous wall

Abstract

The application belongs to the technical field of continuous wall construction, and specifically relates to a type steel positioning device and positioning method for a cement-soil continuous wall. The device comprises type steel guide rails arranged oppositely horizontally, rollers on the guide rails, and a positioning frame. A plurality of fixing rods are arranged along the type steel guide rails, the fixing rods are driven into the ground to reinforce the guide rails, positioning steel plates are symmetrically arranged on the side surfaces of the guide rails according to the spacing of the method piles, and one end of the guide rail is firmly welded through a connecting rod. The rollers are provided with brake steel plates, the rollers travel along the guide rails, the brake steel plates and the positioning steel plates are connected through brake bolts at fixed positions to fix the rollers. The application can improve the positioning accuracy and efficiency of the type steel, reduce the difficulty of type steel sinking construction, continuously perform type steel positioning construction, and effectively improve the construction efficiency of the method piles.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of continuous wall construction, and specifically relates to a type steel positioning device and positioning method for a cement-soil continuous wall. BACKGROUND

[0002] The cement-soil continuous wall is formed by inserting H-shaped steel or other profiles into the cement-soil body after the cement slurry is injected into the soil body by a machine and fully mixed, and directly used as a structure for retaining soil and water. The cement-soil continuous wall has the characteristics of simple structure, good water stopping, short construction period, economy and environmental protection, and is particularly suitable for deep foundation pit engineering in cities.

[0003] At present, there are mainly two kinds of traditional operation methods for inserting type steel or other steel into the cement-soil in the cement-soil continuous wall. One is to hoist the type steel by a mechanical hand or excavator and manually fix it at a specific position by a construction worker with the aid of a measuring instrument. This method has a large difficulty in manual operation, is prone to cause deviation of the position of the type steel, and is greatly affected by weather, so it cannot be constructed in rainy, snowy and windy days. The other is to use sleepers or square steel pipes to form a simple type steel positioning clamp on site. This positioning device has low construction precision and is not easy to move and fix. After the construction of each type steel is completed, the device needs to be removed and repositioned at the next pile position, which is time-consuming and laborious to operate and greatly reduces the construction efficiency. SUMMARY

[0004] To solve the above problems, the application provides a type steel positioning device and positioning method for a cement-soil continuous wall, which not only improves the positioning precision and speed, but also overcomes the defects of the existing positioning device that is not easy to move and fix, can continuously insert type steel into the cement-soil continuous wall, and greatly improves the construction efficiency.

[0005] The application achieves the above-mentioned purpose by the following technical scheme, and the specific technical scheme is as follows.

[0006] A type steel positioning device for a cement-soil continuous wall comprises type steel guide rails arranged opposite to each other, rollers on the guide rails, and a positioning frame.

[0007] Further, a plurality of fixing rods are arranged on the type steel guide rails, the fixing rods are driven into the ground to reinforce the guide rails, positioning steel plates are symmetrically arranged on the side surfaces of the guide rails according to the spacing of the work method piles, and one end of the guide rail is firmly welded through a connecting rod.

[0008] A brake steel plate is arranged on each roller, the rollers travel along the guide rails, and the brake steel plate and the positioning steel plate are connected by a brake pin at a fixed position to fix the rollers.

[0009] In operation, the profiled steel guide rails are arranged on both sides of the upper end of the guide trench, and after the rollers are fixed, the positioning frame is adjusted horizontally by the horizontal adjusting device, so that the positioning frame forms a profiled steel insertion port at the upper end of the corresponding guide trench, facilitating the positioning and insertion of the profiled steel into the guide trench; after the construction is completed, the positioning frame is moved by the rollers along a pair of profiled steel guide rails, so as to continuously perform the positioning construction of the profiled steel.

[0010] Further, the frame body of the positioning frame comprises four steel skeletons, three of which are fixedly welded, and the remaining one is a movable end, one end of the movable end is rotationally fixed through a hinged device, and the other end is fixed through a movable bolt and a fixed steel plate, and one side of the movable end is provided with a hand pull handle.

[0011] Further, a level gauge is arranged above the frame body, which is suitable for observing whether the frame body is horizontal; and the adjusting device is arranged below the frame body.

[0012] Further, the positioning frame is provided with a transverse fixed frame in the transverse groove direction, the transverse fixed frame comprises a transverse support frame, a positioning partition plate and a guide wheel, the positioning partition plate is provided with a hole, the guide wheel protrudes from the hole, and a high-strength spring is arranged behind the guide wheel.

[0013] Further, the positioning frame is provided with a forward fixed frame in the forward groove direction, the forward fixed frame comprises a forward support frame, a positioning clamp and a guide wheel, and the positioning clamp is flush with the guide wheel.

[0014] The movable end is opened, the profiled steel is vertically inserted between the positioning partition plates, if the profiled steel is inclined after entering the interior of the partition plates, the profiled steel will be in contact with the guide wheel, and the high-strength spring is compressed to generate a horizontal force acting on the profiled steel to return the profiled steel to the original position, the profiled steel is guided by the guide wheel to be vertically arranged in the transverse groove direction. Then the movable end is closed, the profiled steel is vertically arranged in the forward groove direction through the positioning clamps and the guide wheels on both sides of the forward groove direction. Finally, the profiled steel is sunk into the cement soil, so as to prevent the profiled steel from deviating after being lowered, avoid the profiled steel from being inclined when entering the cement soil, and make the pile body bear the maximum load in the vertical direction.

[0015] After the profiled steel is sunk to the designed elevation, the movable bolt is pulled out, the handle is pulled to open the movable end, and the entire positioning frame is moved to the next pile position along the guide rail through the rollers.

[0016] In addition, the application also provides a method for positioning profiled steel of a cement soil continuous wall, and the method comprises the following operation steps.

[0017] Step (1): a guide trench is excavated by line laying and leveling on both sides of the guide trench.

[0018] Step (2): A certain length of profile steel guide rail is laid on both sides of the guide ditch respectively, and the guide rail is welded firmly at one end through a connecting rod, and each guide rail is reinforced in the construction site through several fixing rods;

[0019] Step (3): The moving roller is moved, the brake steel plate on the roller is aligned with the positioning steel plate on the guide rail, and the brake pin is connected and fixed; the horizontal adjusting device is adjusted until the bubble position of the level on the positioning frame is horizontally centered, at this time the entire positioning frame is in a relatively horizontal state;

[0020] Step (4): The movable end of the positioning frame is opened, the profile steel is inserted into the positioning partition plate, and the profile steel transverse groove is vertically guided through the rotation of the guide wheels on both sides and the horizontal action of the high-strength spring;

[0021] Step (5): The movable end is closed, the profile steel is guided vertically along the groove through the positioning clamps and guide wheels on both sides, and the movable pin of the movable end is inserted into the fixed steel plate for fixation;

[0022] Step (6): After the profile steel is sunk to the design elevation, the movable pin is pulled out, the movable end of the positioning frame is opened, and the roller is pushed to move along the guide rail to move the positioning frame to the next pile position;

[0023] Step (7): Steps (3)-(6) are repeated to complete the construction work of all profile steels.

[0024] The beneficial technical effects of the present application are as follows:

[0025] The profile steel positioning device of the present application is composed of a pair of profile steel guide rails arranged horizontally, a roller set and a positioning frame. The pair of profile steel guide rails are horizontally placed on the guide ditch, the positioning steel plates are symmetrically arranged along the horizontal direction of the guide rails, the brake steel plate on the roller is fixed with the positioning steel plate on the guide rail through the brake pin. The positioning frame is leveled through the horizontal adjusting device. Finally, the positioning device forms an accurate H-shaped steel insertion port above the guide ditch, greatly improving the accuracy and efficiency of profile steel positioning.

[0026] The positioning frame body of the present application is composed of four steel frames, three sides are fixedly welded, and the remaining one side movable end is fixed by a hinge device and a movable pin. After the profile steel is sunk to the design elevation, the movable end of the positioning frame is opened, the roller is pushed to move along the guide rail, the positioning frame is moved to the next pile position, and the profile steel positioning construction is continued. Without the need to disassemble the positioning device after completing the construction of each profile steel, the construction can be continuously carried out, greatly improving the efficiency of the cement-soil continuous wall construction.

[0027] The device can be pre-assembled and combined into multiple parts and then moved as a whole according to the actual situation, and has mobility. The combined device makes the components unitized and lightweight, has the characteristics of quick assembly and disassembly and flexible handling, and has strong practicality. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A plan view of a section steel positioning device according to an embodiment of the present application.

[0029] Figure 2 A front view of a section steel positioning device according to an embodiment of the present application.

[0030] Figure 3 A side view of a section steel positioning device according to an embodiment of the present application.

[0031] Figure 4 A detailed view of a section steel positioning device according to an embodiment of the present application.

[0032] In the figure: 1, a guide groove; 2, a pair of section steel guide rails; 201, a guide rail; 202, a connecting rod; 203, a positioning steel plate; 204, a fixing rod; 3, a roller set; 301, a roller; 302, a brake bolt; 303, a brake steel plate; 4, a positioning frame; 41, a frame body; 411, a horizontal adjusting device; 412, a steel skeleton; 413, a level; 414, a hinged device; 415, a movable end; 416, a movable bolt; 417, a handle; 418, a fixed steel plate; 42, a transverse fixing frame; 421, a transverse support frame; 422, a guide wheel; 423, a high-strength spring; 424, a positioning partition plate; 425, a hole; 43, a longitudinal fixing frame; 431, a positioning card; 432, a longitudinal support frame; 433, a guide wheel. DETAILED DESCRIPTION

[0033] The present application is described in greater detail by the specific embodiments below, and other advantages and effects of the present application can be easily understood by those skilled in the art from the contents disclosed in the present specification. The present application can also be implemented or applied by different specific embodiments, and various modifications or changes can be made to the details in the present specification based on different views and applications without departing from the spirit of the present application. It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0034] The drawings are only used for exemplary illustration, and the representation is only a schematic diagram, not a physical diagram, and should not be understood as a limitation on the present application; in order to better illustrate the embodiments of the present application, some components in the drawings are omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, the omission of some well-known structures and their descriptions in the drawings is understandable.

[0035] See Figure 1 A section steel positioning device for a cement-soil continuous wall, comprising a pair of section steel guide rails 2 arranged opposite to each other, a roller set 3 and a positioning frame 4;

[0036] See Figure 2 The pair of steel guide rails 2 are provided with several fixed rods 204 along the line, which are driven into the ground to reinforce the guide rail 201. The side of the guide rail 201 is symmetrically provided with a positioning steel plate 203 according to the design of the cement-soil wall. One end of the guide rail 201 is firmly welded through a connecting rod 202.

[0037] Each roller 301 of the roller group 3 is provided with a brake steel plate 303. The roller 301 travels along the guide rail 201, and the brake steel plate 303 is connected with the positioning steel plate 203 through a brake bolt 302 at a fixed position to fix the roller 301.

[0038] During operation, the pair of steel guide rails 2 are arranged on both sides of the upper end of the guide trench 1. After the roller 301 is fixed, the positioning frame 4 is adjusted horizontally through the horizontal adjusting device 411 to form an H-shaped steel insertion port at the upper end of the corresponding guide trench 1, so that the H-shaped steel is conveniently positioned and inserted into the guide trench 1. After the construction is completed, the roller group 3 travels on the pair of steel guide rails 2 to realize the movement of the positioning frame 4 and continuously position the steel.

[0039] See Figure 3 The frame body 41 of the positioning frame 4 is composed of four steel frames 412, three sides of which are fixedly welded, and the remaining one side is an active end 415, one end of which is rotationally fixed through a hinge device 414, and the other end is fixed through a movable bolt 416 and a fixed steel plate 418. The active end is provided with a hand pull handle 417 on one side. A level 413 is arranged above the frame body 41, and a horizontal adjusting device 411 is arranged below. The positioning frame 4 is provided with a transverse fixing frame 42 in the transverse direction, which includes a transverse support frame 421, a positioning partition plate 424, and a guide wheel 422. The positioning partition plate 424 is provided with a hole 425, and the guide wheel 422 protrudes from the hole 425 by 2 cm. A high-strength spring 423 is arranged behind the guide wheel 422. The positioning frame 4 is provided with a forward fixing frame 43 in the forward direction, which includes a forward support frame 432, a positioning card 431, and a guide wheel 433. The positioning card 431 is flush with the guide wheel 433.

[0040] See Figure 4 First, open the active end 415, and vertically insert the steel into the positioning partition plate 424. If the steel is tilted after entering the partition plate, it will be in contact with the guide wheel 422, and the high-strength spring 423 will be compressed to generate a horizontal force on the steel to return it to its original position. After the steel is guided by the guide wheel 422, it is perpendicular to the transverse direction. Then, close the active end 415, and make the steel perpendicular to the forward direction through the positioning card 431 and the guide wheel 433 on both sides of the forward direction. Finally, sink the steel into the cement-soil to prevent the steel from deviating after being lowered, avoid the steel from being tilted when entering the cement-soil, and make the pile body bear the maximum load in the vertical direction.

[0041] After the section steel sinks to the design elevation, the movable bolt 416 is pulled out, the handle 417 is pulled to open the movable end 415, and the whole positioning frame 4 is moved to the next pile position along the guide rail 2 through the roller 3.

Claims

1. A steel positioning device for a cement soil continuous wall, characterized by: It comprises a relatively horizontally arranged steel guide rail (2), a roller assembly (3) located on the guide rail, and a positioning frame (4); Several fixing rods (204) are provided along the steel guide rail (2), and the fixing rods (204) are driven into the ground to reinforce the guide rail (201). Positioning steel plates (203) are symmetrically provided on the side of the guide rail (201) according to the distance between the construction piles. One end of the guide rail (201) is welded firmly by a connecting rod (202); Each roller (301) of the roller assembly (3) is provided with a brake steel plate (303), and the roller (301) moves along the guide rail (201). The brake steel plate (303) and the positioning steel plate (203) are connected at a fixed position by a brake pin (302) to fix the roller (301); During operation, the steel guide rails (2) are arranged on both sides of the upper end of the guide groove (1); after the rollers (301) are fixed, the positioning frame (4) is adjusted to a horizontal level by the horizontal adjustment device (411), so that the positioning frame (4) forms a steel plug-in port at the upper end of the corresponding guide groove (1), which facilitates the positioning and insertion of the steel into the guide groove (1); after the construction is completed, the roller group (3) travels on the steel guide rails (2) to achieve the purpose of moving the positioning frame (4) and continuously performing the steel positioning construction; The frame (41) of the positioning frame (4) includes four steel frames (412), three of which are fixed and welded, and the remaining one is a movable end (415). One end of the movable end (415) is rotatably fixed by a hinge device (414), and the other end is fixed by a movable pin (416) and a fixed steel plate (418). A hand handle (417) is provided on one side of the movable end. The positioning frame (4) is provided with a transverse fixing frame (42) in the transverse groove direction. The transverse fixing frame (42) includes a transverse support frame (421), a positioning partition (424) and a guide wheel (422). The positioning partition (424) is provided with a hole (425). The guide wheel (422) protrudes from the hole (425). A high-strength spring (423) is provided behind the guide wheel (422). The positioning frame (4) is provided with a forward fixing frame (43) along the groove direction, and the forward fixing frame (43) comprises a forward support frame (432), a positioning card (431) and a guide wheel (433), wherein the positioning card (431) is flush with the guide wheel (433).

2. The steel section positioning device for cement soil continuous wall according to claim 1, characterized in that: A level ruler (413) is provided above the frame (41) and is suitable for observing whether the frame (41) is level; the adjustment device (411) is installed below the frame (41).

3. A method for positioning section steel of a cement-soil continuous wall, using the section steel positioning device for a cement-soil continuous wall according to claim 1, characterized in that: The following steps are included: Lay out the guide ditch at the construction site and level both sides of the guide ditch; A certain length of steel guide rail is laid parallel to both sides of the guide ditch. One end of the guide rail is welded firmly with a connecting rod. Each guide rail is reinforced on the construction site with several fixing rods. Move the roller, align the brake steel plate on the roller with the positioning steel plate on the guide rail, and connect and fix them with the brake pin; adjust the level adjustment device until the bubble position of the level ruler on the positioning frame is horizontal and centered. At this time, the entire positioning frame is in a relatively horizontal state; Open the movable end of the positioning frame and insert the steel into the positioning partition. The guide wheels on both sides rotate and guide and the high-strength springs work horizontally to make the cross groove of the steel vertical. Close the movable end, make the steel section vertical along the groove through the positioning clips and guide wheels on both sides, and insert the movable pin of the movable end into the fixed steel plate to fix it; After sinking the steel section to the designed elevation, pull out the movable pin, open the movable end of the positioning frame, and push the roller along the guide rail to move the positioning frame to the next pile position; Repeat the steps until all the steel sections are completed.

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