Reinforcing system and method for one-column-one-pile inclined latticed column of underground engineering

Abstract

The invention discloses an underground engineering one-column-one-pile inclined latticed column reinforcing system and method, and the system comprises anchoring parts which are anchored into the lower surface of a first support on one side of an inclined latticed column and the upper surface of a bottom plate under the first support correspondingly. The two pieces of newly-added angle steel are vertically welded between the anchoring part of the first support and the anchoring part of the bottom plate, the arrangement distance between the two pieces of newly-added angle steel and the original angle steel of the inclined latticed column is the same, and the side batten plates are vertically and evenly welded between the newly-added angle steel and the original angle steel in the inclined latticed column on the side where the newly-added angle steel is located at intervals and are horizontally arranged. The side batten plates and the original batten plates of the inclined latticed column are distributed in a staggered mode, the end face batten plates which are horizontally arranged are vertically and evenly welded between the two newly-added angle steels at intervals, and the end face batten plates and the side batten plates are distributed correspondingly. Construction of an underground structure is not hindered, use of the trestle is not affected, and the trestle has the advantages of being safe, reliable, stable and convenient to construct.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to a reinforcement system and method for an inclined lattice column of one column and one pile in an underground engineering. Background Art

[0002] In underground projects, one column and one pile consisting of bored piles and lattice columns are generally used as vertical support components. The lattice columns are welded to the steel cage of the bored piles as uprights and lowered together. Due to the ineffective or inadequate vertical adjustment measures of the lattice columns, the disturbance during the concrete pouring process, and the unbalanced soil pressure on both sides of the lattice columns in the soft soil layer, the verticality of the lattice columns deviates and tilts. The stability and vertical bearing capacity of the lattice columns after tilting cannot meet the construction requirements, affecting the safety of the foundation pit. In order to ensure the safety of the foundation pit, it is necessary to reinforce the inclined lattice columns. The conventional reinforcement measures are: scissor braces are set between the floor slab and the surrounding structure support to connect the adjacent lattice columns, so that the inclined lattice columns and the surrounding adjacent lattice columns form a whole, so as to effectively control the lateral deformation of the inclined lattice columns and prevent them from expanding. Its disadvantage is that the scissor braces are cross-laid, occupying a large area, and cannot avoid the location of the building structures such as the walls and columns of the underground structure, which creates obstacles to the construction of the underground structure. In addition, when the verticality deviation of the lattice column is large, for example, when the verticality deviation of the lattice column is more than 500mm, some inclined lattice columns are located under the trestle, resulting in insufficient vertical load of the inclined lattice column on the trestle, affecting the safety of the trestle. After the second support is removed, the inclined lattice column needs to be re-reinforced, which makes the reinforcement process complicated and affects the construction progress of the underground project. Summary of the invention

[0003] The purpose of the present invention is to provide a reinforcement system and method for inclined lattice columns of one column and one pile in underground engineering, so as to solve the problem that when scissors braces are used to reinforce the inclined lattice columns, the position of wall columns is occupied, causing obstacles to the construction of underground structures, and the vertical bearing capacity of the trestle is insufficient, affecting the use of the trestle.

[0004] In order to solve the above technical problems, the present invention provides a reinforcement system for an inclined lattice column of one column and one pile in an underground project, comprising an anchor anchored in the lower surface of a first support on one side of the inclined lattice column and the upper surface of a base plate directly below it, two newly added angle steels vertically welded between the anchor of the first support and the anchor of the base plate, the two newly added angle steels are arranged at the same spacing as the original angle steels of the inclined lattice column, a plurality of side gusset plates horizontally arranged between each newly added angle steel and the original angle steel in the inclined lattice column on its side are welded at uniform vertical intervals, the side gusset plates are staggered with the original gusset plates of the inclined lattice column, and a plurality of horizontally arranged end face gusset plates are welded between the two newly added angle steels at uniform vertical intervals, the end face gusset plates are distributed corresponding to the side gusset plates.

[0005] Furthermore, in the reinforcement system of the one-column-one-pile inclined lattice column of the underground engineering provided by the present invention, the anchoring piece includes an anchor plate and anchor bars vertically welded thereon.

[0006] Furthermore, in the reinforcement system of the inclined lattice column of one column and one pile in underground engineering provided by the present invention, the anchor plate is a rectangular steel plate, and the number of anchor bars welded on the anchor plate is six.

[0007] Furthermore, in the reinforcement system of the inclined lattice column of one column and one pile in underground engineering provided by the present invention, the intervals between the side gusset plates and the end gusset plates are both 700 mm.

[0008] In order to solve the above technical problems, the present invention also provides a method for reinforcing an inclined lattice column of one column and one pile in an underground project, which adopts the above-mentioned reinforcement system of an inclined lattice column of one column and one pile in an underground project, comprising:

[0009] Anchors are respectively anchored into the lower surface of the first support on one side of the inclined lattice column and the upper surface of the bottom plate directly below it;

[0010] Two newly added angle steels are vertically welded between the anchor of the first support and the anchor of the bottom plate, so that the spacing between the two newly added angle steels and the original angle steels of the inclined lattice column is consistent;

[0011] The surfaces of the two original angle steels on the side of the inclined lattice column close to the newly added angle steel are treated with mud and rust removal;

[0012] A plurality of horizontally arranged side gusset plates are evenly welded vertically between each newly added angle steel and the original angle steel on the inclined lattice column on its side after mud and rust removal, the side gusset plates are arranged at intervals with the original gusset plates of the inclined lattice column, and a plurality of horizontally arranged end face gusset plates corresponding to the side gusset plates on one side are evenly welded vertically at the end faces between two newly added angle steels.

[0013] Furthermore, the present invention provides a method for reinforcing an inclined lattice column of an underground project with one column and one pile, wherein the anchor comprises an anchor plate and anchor bars vertically welded thereon, the anchor bars of the anchor on the first support are implanted in the first support, and the anchor plate is horizontally attached to the lower surface of the first support; the anchor bars of the anchor on the bottom plate are implanted in the bottom plate, and the anchor plate is horizontally attached to the upper surface of the bottom plate.

[0014] Furthermore, in the reinforcement method of the one-column-one-pile inclined lattice column of the underground engineering provided by the present invention, when there is a gap between the newly added angle steel and the anchor of the first support, a plug plate is inserted and welded in the gap.

[0015] Furthermore, in the reinforcement method of the one-column-one-pile inclined lattice column of the underground engineering provided by the present invention, the newly added angle steel has the same specification and strength grade as the original angle steel of the inclined lattice column.

[0016] Furthermore, the reinforcement method of the one-column-one-pile inclined lattice column of the underground engineering provided by the present invention adopts H-shaped steel or I-shaped steel to replace the newly added angle steel.

[0017] Furthermore, the reinforcement method for the one-column-one-pile inclined lattice column of the underground engineering provided by the present invention respectively constructs the reinforcement system of the one-column-one-pile inclined lattice column of the underground engineering between the lower surface of the first support on both sides of the inclined lattice column and the upper surface of the bottom plate directly below it.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a reinforcement system and method for an inclined lattice column with one column and one pile in an underground project. A vertical reinforcement system consisting of two anchors, two angle steels, a plurality of end face gussets and a plurality of side gussets is constructed on at least one side of the inclined lattice column between the first support and the bottom plate, and the side gussets on both sides of the vertical reinforcement system are connected to the inclined lattice column to form an integral structure, thereby reinforcing the inclined lattice column of the underground project. The vertical reinforcement structure reduces the occupied area relative to the scissors support, can avoid the wall column position of the underground structure, and will not hinder the construction of the underground structure; the inclined lattice column, the vertical reinforcement system and the bottom plate form a triangle to vertically support the trestle, so that the trestle can bear a larger load, has a safe and stable effect, and does not affect the use of the trestle. After the second support is removed, the vertical reinforcement system is still connected to the first support, which does not affect the reinforcement effect of the vertical reinforcement system on the inclined lattice column, does not affect the vertical bearing capacity and stability of the reinforced inclined lattice column, does not require additional reinforcement structure construction, and has the advantages of convenient construction and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the elevation structure of the reinforcement system of the inclined lattice column with one column and one pile in underground engineering;

[0021] Figure 2 yes Figure 1 Sectional view at AA in the middle;

[0022] Figure 3 It is a schematic diagram of the elevation structure of the anchor;

[0023] Figure 4 It is a schematic diagram of the plane structure of the anchor;

[0024] As shown in the figure:

[0025] 100. Reinforcement system of inclined lattice columns with one column and one pile in underground engineering, 110. Anchors, 120. Angle steel, 130. Side gussets, 140. End gussets;

[0026] 200, inclined lattice column, 210, original angle steel, 220, original tie plate;

[0027] 300, the first support;

[0028] 400, the second support;

[0029] 500. Base plate. DETAILED DESCRIPTION

[0030] The present invention is described in detail below in conjunction with the accompanying drawings: The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0031] Please refer to Figures 1 to 4 The embodiment of the present invention provides a reinforcement system 100 for an inclined lattice column of one column and one pile in an underground project, comprising an anchor 110 anchored in the lower surface of a first support 300 on one side of the inclined lattice column 200 and the upper surface of a bottom plate 500 directly below the first support 300, two newly added angle steels 120 vertically welded between the anchor 110 of the first support 300 and the anchor 110 of the bottom plate 500, and the two newly added angle steels 120 and the original angle steels of the inclined lattice column 200. 210 are arranged at the same spacing, and multiple side gussets 130 are horizontally arranged between each newly added angle steel 120 and the original angle steel 210 in the inclined lattice column 200 on its side are welded at uniform vertical intervals. The side gussets 130 are staggered with the original gussets 220 of the inclined lattice column 200. Multiple horizontally arranged end gussets 140 are welded at uniform vertical intervals between two of the newly added angle steels 120, and the end gussets 140 are distributed correspondingly to the side gussets 130. The inclined lattice column 200 is composed of four original angle steels 210 arranged in a rectangular shape and original gussets 220 welded on four sides and distributed at uniform vertical intervals. The anchor 110 includes an anchor plate 111 and anchor bars 112 vertically welded thereon. The anchor plate 111 can be a rectangular steel plate, and the anchor bars 112 include but are not limited to six. The intervals between the side panels 130 and the end panels 140 may be the same as the intervals between the original panels 210 of the inclined lattice column 200 , including but not limited to 700 mm.

[0032] Please refer to Figures 1 to 4 The embodiment of the present invention further provides a method for reinforcing an inclined lattice column of one column and one pile in an underground project, and the reinforcement system 100 of the inclined lattice column 200 of one column and one pile in an underground project described above may include:

[0033] Step 601: Anchors 110 are respectively anchored on the lower surface of the first support 300 on one side of the inclined lattice column 200 and the upper surface of the bottom plate 500 directly below it. The anchor ribs 112 of the anchor 110 on the first support 300 are implanted in the first support 300, and the anchor plate 111 is horizontally attached to the lower surface of the first support 300; the anchor ribs 112 of the anchor 110 on the bottom plate 500 are implanted in the bottom plate 500, and the anchor plate 111 is horizontally attached to the upper surface of the bottom plate 500.

[0034] Step 602 , two newly added angle steels 120 are vertically welded between the anchor 110 of the first support 300 and the anchor 110 of the bottom plate 500 , so that the two newly added angle steels 120 are arranged at the same spacing as the original angle steels 210 of the inclined lattice column 200 .

[0035] Step 603 , remove mud and rust from the surfaces of the two original angle steels 210 on the side of the inclined lattice column 200 close to the newly added angle steel 120 . The purpose of removing mud and rust from the original angle steel 210 is to weld it to the newly added angle steel 120 through the side plate 130 .

[0036] Step 604, a plurality of horizontally arranged side gusset plates 130 are uniformly welded vertically between each newly added angle steel 120 and the original angle steel 210 in the inclined lattice column 200 on its side after mud and rust removal, the side gusset plates 130 are spaced apart from the original gusset plates 220 of the inclined lattice column 200, and a plurality of horizontally arranged end face gusset plates 140 corresponding to the side gusset plates 130 on one side are uniformly welded vertically on the end face between two newly added angle steels 120.

[0037] The embodiment of the present invention provides a reinforcement system 100 and method for an inclined lattice column with one column and one pile in an underground project. A vertical reinforcement system 100 consisting of two anchors 110, two angle steels, a plurality of end face gussets 140 and a plurality of side gussets 130 is constructed on at least one side of the inclined lattice column 200 between the first support 300 and the base plate 500, and the side gussets 130 on both sides of the vertical reinforcement system 100 are connected to the inclined lattice column 200 to form an integral structure, thereby reinforcing the inclined lattice column 200 of the underground project. Compared with the scissors brace, the vertical reinforcement structure reduces the occupied area, can avoid the wall column position of the underground structure, and will not hinder the construction of the underground structure; the inclined lattice column 200, the vertical reinforcement system 100 and the base plate 500 form a triangle to vertically support the trestle, so that the trestle can bear a larger load, has a safe and stable effect, and does not affect the use of the trestle. After the second support is removed, the vertical reinforcement system 100 is still connected to the first support 300, which does not affect the reinforcement effect of the vertical reinforcement system 100 on the inclined lattice column 200, does not affect the vertical bearing capacity and stability of the reinforced inclined lattice column 200, and does not require additional construction of the reinforcement structure, which has the advantages of convenient construction and high reliability.

[0038] In order to improve the structural stability of the reinforcement system 100 and its reinforcement effect on the inclined lattice column 200, the embodiment of the present invention provides a reinforcement method for an inclined lattice column of an underground project with one column and one pile. When there is a gap between the newly added angle steel 120 and the anchor 110 of the first support 300, a plug plate is welded in the gap.

[0039] In order to improve the reinforcement strength of the inclined lattice column 200 , the embodiment of the present invention provides a reinforcement method for an inclined lattice column of one column and one pile in an underground project, wherein the newly added angle steel 120 has the same specification and strength grade as the original angle steel 210 of the inclined lattice column 200 .

[0040] In order to improve the vertical bearing capacity, the reinforcement method of the one-column-one-pile inclined lattice column of the underground engineering provided by the embodiment of the present invention can use H-shaped steel or I-shaped steel to replace the newly added angle steel 120.

[0041] In order to improve the reinforcement strength, the reinforcement method of the one-column-one-pile inclined lattice column of the underground project provided by the embodiment of the present invention is to respectively construct the reinforcement system 100 of the one-column-one-pile inclined lattice column 200 of the underground project between the lower surface of the first support 300 on both sides of the inclined lattice column 200 and the upper surface of the bottom plate 500 directly below it. The reinforcement system 100 on both sides of the inclined lattice column 200 can reinforce the inclined lattice column 200 on both sides, thereby improving the structural stability, reliability and vertical load bearing capacity of the reinforcement system 100.

[0042] The present invention is not limited to the above-mentioned specific implementation modes. Obviously, the above-mentioned embodiments are only some embodiments of the embodiments of the present invention, but not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention. Those skilled in the art can make other levels of modifications and changes to the present invention. In this way, if these modifications and changes of the present invention fall within the scope of the claims of the present invention, the present invention is also intended to include these changes and changes.

Claims

1. A reinforcement system for inclined lattice columns with one column and one pile in underground engineering, characterized in that: It includes an anchoring piece anchored in the lower surface of the first support on one side of the inclined lattice column and the upper surface of the bottom plate directly below it, two newly added angle steels vertically welded between the anchoring piece of the first support and the anchoring piece of the bottom plate, the two newly added angle steels are arranged at the same spacing as the original angle steels of the inclined lattice column, a plurality of side gusset plates horizontally arranged between each newly added angle steel and the original angle steel in the inclined lattice column on its side are welded at uniform vertical intervals, the side gusset plates are staggered with the original gusset plates of the inclined lattice column, and a plurality of horizontally arranged end face gusset plates are welded between the two newly added angle steels at uniform vertical intervals, the end face gusset plates are distributed corresponding to the side gusset plates.

2. The reinforcement system of the inclined lattice column of one column and one pile in underground engineering according to claim 1 is characterized in that: The anchoring member comprises an anchor plate and anchor bars vertically welded thereon.

3. The reinforcement system of the inclined lattice column of one column and one pile in underground engineering according to claim 2 is characterized in that: The anchor plate is a rectangular steel plate, and six anchor bars are welded on the anchor plate.

4. The reinforcement system of the inclined lattice column of one column and one pile in underground engineering according to claim 1 is characterized in that: The intervals between the side panels and the end panels are both 700 mm.

5. A method for reinforcing an inclined lattice column of one column and one pile in an underground project, characterized in that: The reinforcement system of the inclined lattice column of one column and one pile in underground engineering according to any one of claims 1 to 4 comprises: Anchors are respectively anchored into the lower surface of the first support on one side of the inclined lattice column and the upper surface of the bottom plate directly below it; Two newly added angle steels are vertically welded between the anchor of the first support and the anchor of the bottom plate, so that the spacing between the two newly added angle steels and the original angle steels of the inclined lattice column is consistent; The surfaces of the two original angle steels on the side of the inclined lattice column close to the newly added angle steel are treated with mud and rust removal; A plurality of horizontally arranged side gusset plates are evenly welded vertically between each newly added angle steel and the original angle steel on the inclined lattice column on its side after mud and rust removal, the side gusset plates are arranged at intervals with the original gusset plates of the inclined lattice column, and a plurality of horizontally arranged end face gusset plates corresponding to the side gusset plates on one side are evenly welded vertically at the end faces between two newly added angle steels.

6. The method for reinforcing the inclined lattice column of one column and one pile in underground engineering according to claim 5, characterized in that: The anchor comprises an anchor plate and anchor bars vertically welded thereon. The anchor bars of the anchor on the first support are implanted in the first support, and the anchor plate is horizontally attached to the lower surface of the first support; the anchor bars of the anchor on the bottom plate are implanted in the bottom plate, and the anchor plate is horizontally attached to the upper surface of the bottom plate.

7. The method for reinforcing the inclined lattice column of one column and one pile in underground engineering according to claim 5, characterized in that: When there is a gap between the newly added angle steel and the anchor of the first support, a welded plug plate is inserted in the gap.

8. The method for reinforcing the inclined lattice column of one column and one pile in underground engineering according to claim 5, characterized in that: The newly added angle steel has the same specifications and strength grade as the original angle steel of the inclined lattice column.

9. The method for reinforcing the inclined lattice column of one column and one pile in underground engineering according to claim 5, characterized in that: Use H-shaped steel or I-shaped steel instead of adding angle steel.

10. The method for reinforcing the inclined lattice column of one column and one pile in underground engineering according to claim 5, characterized in that: A reinforcement system of the inclined lattice column of the underground project with one column and one pile is constructed between the lower surface of the first support on both sides of the inclined lattice column and the upper surface of the bottom plate directly below it.

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