阅读说明：本技术 锁扣型钢地下连续墙结构及其施工方法 (Lock catch type steel underground continuous wall structure and construction method thereof ) 是由 潘伟强 诸颖 任向东 朱雁飞 祝强 张耀三 张健 戴咏 王峰 陈怡� 王彦杰 于 2021-09-02 设计创作，主要内容包括：本发明涉及一种锁扣型钢地下连续墙结构及其施工方法,包括：若干高度与待形成的地下连续墙的高度相匹配的钢制单元段；固定于钢制单元段的一侧的连接件；以及固定于钢制单元段的另一侧且与连接件相匹配的卡接件,通过钢制单元段的连接件与相邻的钢制单元段的卡接件卡接连接,以使得相邻两个钢制单元段固定连接,从而浇筑混凝土后拼合形成地下连续墙。本发明有效的解决了地下连续墙施工困难的问题,不仅能够适用于狭窄空间的工况,还能保证地下连续墙的强度,且施工方便,提升了施工效率,保证了施工质量。(The invention relates to a lock catch type steel underground continuous wall structure and a construction method thereof, wherein the lock catch type steel underground continuous wall structure comprises the following steps: a plurality of steel unit sections with the height matched with that of the underground continuous wall to be formed; a connecting member fixed to one side of the steel unit section; and the connecting piece through the steel unit section is connected with the clamping piece of the adjacent steel unit section in a clamping manner, so that the two adjacent steel unit sections are fixedly connected, and the underground continuous wall is formed by splicing after concrete is poured. The invention effectively solves the problem of difficult construction of the underground continuous wall, not only can be suitable for the working condition of a narrow space, but also can ensure the strength of the underground continuous wall, is convenient to construct, improves the construction efficiency and ensures the construction quality.)

1. The utility model provides a hasp shaped steel underground continuous wall structure which characterized in that includes:

a plurality of steel unit sections with the height matched with that of the underground continuous wall to be formed;

a connecting member fixed to one side of the steel unit section; and

be fixed in the opposite side of steel unit section and with connecting piece assorted joint spare, through the connecting piece of steel unit section is connected with the joint spare joint of adjacent steel unit section, so that adjacent two steel unit section fixed connection to amalgamation forms underground continuous wall after concreting.

2. The underground continuous wall structure of lock catch type steel as claimed in claim 1, wherein the cross section of the connecting piece is C-shaped and an opening is formed at a position close to the adjacent connecting piece;

the cross section of the clamping piece is T-shaped, and the clamping piece is clamped on the connecting piece, so that the two adjacent steel unit sections are fixedly connected.

3. The lock catch type steel underground continuous wall structure according to claim 2, wherein the clamping member comprises a fixing plate fixed on the side of the steel unit section and extending into the opening, and a clamping plate vertically connected to the end of the fixing plate far away from the steel unit section, and the clamping plate is clamped into the opening through the fixing plate, so that the clamping plate is positioned in the connecting member, and two adjacent steel unit sections are fixedly connected.

4. The clip type steel underground continuous wall structure of claim 3, wherein the width of the clip plate is greater than the width of the opening to prevent the clip plate from coming out of the opening.

5. The underground continuous wall structure of lock catch type steel as claimed in claim 1, wherein the steel unit section is H-shaped in cross section and comprises two opposite side plates and a wing plate connected between the two side plates, the connecting member is fixed at one end of the side plate, and the clamping member is fixed at the other end of the side plate.

6. The underground continuous wall structure of locking steel sections as claimed in claim 5, further comprising a plurality of through holes spaced apart from the wing plates.

7. The lock-catch type steel underground continuous wall structure of claim 1, wherein the steel unit sections are made of H-shaped steel.

8. The underground continuous wall structure of locking steel sections as claimed in claim 1, wherein the length of the connecting member and the clamping member is matched with the height of the steel unit sections.

9. The construction method of the locking type steel underground continuous wall structure according to claim 1, which is characterized by comprising the following steps:

excavating a groove section with a set length at the position of the underground continuous wall to be formed;

providing a plurality of steel unit sections, putting the steel unit sections into the groove sections, and connecting pieces of the steel unit sections with clamping pieces of adjacent steel unit sections in a clamping manner so as to fixedly connect two adjacent steel unit sections;

and pouring concrete into the groove section to form a concrete section, burying a plurality of steel unit sections in the concrete section, and splicing a plurality of concrete sections to form the underground continuous wall.

10. The construction method of the locking type steel underground continuous wall structure as claimed in claim 9, further comprising:

pouring concrete into the groove section to a set elevation so as to form a fixed groove section at the bottom of the groove section, and burying the bottom ends of the steel unit sections in the fixed groove section;

and backfilling a soil bag at the end part of the groove section, pouring concrete into the groove section to form the concrete section, excavating the adjacent groove sections, and cleaning the soil bag to construct the next concrete section.

Technical Field

The invention relates to the field of building construction, in particular to a lock catch type steel underground continuous wall structure and a construction method thereof.

Background

The underground continuous wall is characterized in that a long and narrow deep groove is excavated along the peripheral axis of a deep excavation project, a reinforcement cage is hung in the groove, and concrete is poured, so that a continuous reinforced concrete wall is built underground and serves as a structure for intercepting water, preventing seepage, bearing and retaining water.

However, in modern cities, particularly in downtown areas, high-rise forests and roads and bridges are vertical and horizontal, and constantly developed cities have severe requirements on utilization of limited urban spaces, and a foundation pit supporting structure is often required to be built in a narrow underground space, so that the underground continuous wall cannot be made thick, but the strength of the underground continuous wall needs to be ensured.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, provides the lock catch type steel underground continuous wall structure and the construction method thereof, solves the problem of difficulty in construction of the underground continuous wall, can be suitable for the working condition of a narrow space, can also ensure the strength of the underground continuous wall, is convenient to construct, improves the construction efficiency and ensures the construction quality.

The technical scheme for realizing the purpose is as follows:

the invention provides a lock catch type steel underground continuous wall structure, which comprises:

a plurality of steel unit sections with the height matched with that of the underground continuous wall to be formed;

a connecting member fixed to one side of the steel unit section; and

be fixed in the opposite side of steel unit section and with connecting piece assorted joint spare, the connecting piece through steel unit section is connected with the joint spare joint of adjacent steel unit section to make two adjacent steel unit section fixed connection, thereby form underground continuous wall after concreting amalgamation.

The invention provides a lock catch type steel underground continuous wall structure, wherein a connecting piece of a steel unit section is connected with a clamping piece of an adjacent steel unit section in a clamping manner, so that the two adjacent steel unit sections are fixedly connected, a plurality of steel unit sections are spliced to form an underground continuous wall after concrete is poured, and the thickness of each steel unit section is greatly smaller than that of a steel reinforcement cage, so that the thickness of the underground continuous wall formed in the mode is smaller, the working condition with limited space can be met, in addition, the strength of each steel unit section is higher, the integral strength of the underground continuous wall can be ensured, the problem of difficulty in construction of the underground continuous wall is solved, the lock catch type steel underground continuous wall structure not only can be suitable for the working condition with narrow space, but also can ensure the strength of the underground continuous wall, is convenient to construct, the construction efficiency is improved, and the construction quality is ensured.

The invention further improves the lock catch type steel underground continuous wall structure, the cross section of the connecting piece is C-shaped, and an opening is formed at the position close to the adjacent connecting piece;

the cross section of the clamping piece is T-shaped, and the connecting piece is clamped by the clamping piece, so that the two adjacent steel unit sections are fixedly connected.

The buckle type steel underground continuous wall structure is further improved in that the clamping piece comprises a fixing plate and a clamping plate, the fixing plate is fixed on the side portion of the steel unit section and extends into the opening, the clamping plate is vertically connected to the end portion, far away from the steel unit section, of the fixing plate, the fixing plate is clamped into the opening, so that the clamping plate is located in the connecting piece, and two adjacent steel unit sections are fixedly connected.

The invention further improves the underground continuous wall structure of the lock catch profile steel, and the width of the clamping plate is larger than that of the opening so as to prevent the clamping plate from falling off from the opening.

The invention further improves the structure of the lock catch type steel underground continuous wall, the cross section of the steel unit section is H-shaped, the lock catch type steel underground continuous wall comprises two opposite side plates and a wing plate connected between the two side plates, a connecting piece is fixed at one end of each side plate, and a clamping piece is fixed at the other end of each side plate.

The lock catch type steel underground continuous wall structure is further improved in that the lock catch type steel underground continuous wall structure further comprises a plurality of through holes which are arranged on the wing plates at intervals.

The lock catch type steel underground continuous wall structure is further improved in that the steel unit sections are made of H-shaped steel.

The invention further improves the lock catch type steel underground continuous wall structure, and the lengths of the connecting piece and the clamping piece are matched with the height of the steel unit section.

The invention provides a construction method of a lock catch type steel underground continuous wall structure, which comprises the following steps:

excavating a groove section with a set length at the position of the underground continuous wall to be formed;

providing a plurality of steel unit sections, putting the steel unit sections into the groove section, and connecting pieces of the steel unit sections with clamping pieces of adjacent steel unit sections in a clamping manner so as to fixedly connect the two adjacent steel unit sections;

concrete is poured into the groove section to form a concrete section, the steel unit sections are buried in the concrete section, and the dry concrete sections are spliced to form the underground continuous wall.

The construction method of the lock catch type steel underground continuous wall structure is further improved in that the construction method further comprises the following steps:

pouring concrete into the groove section to a set elevation so as to form a fixed groove section at the bottom of the groove section, and embedding the bottom ends of the steel unit sections into the fixed groove section;

and (3) backfilling a soil bag at the end part of the groove section, pouring concrete into the groove section to form a concrete section, excavating the adjacent groove sections, and cleaning the soil bag to construct the next concrete section.

Drawings

Fig. 1 is a top view of the locking type steel underground continuous wall structure of the invention.

FIG. 2 is an enlarged schematic view of the connecting piece and the clamping piece in the locking type steel underground continuous wall structure.

Fig. 3 is an enlarged schematic view of a through hole part in the locking type steel underground continuous wall structure of the invention.

FIG. 4 is a construction state diagram before concrete is poured into the lock catch type steel underground continuous wall structure.

FIG. 5 is a construction state diagram of the latch type steel underground continuous wall structure of the invention after concrete is poured.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

Referring to fig. 1, the invention provides a latch type steel underground continuous wall structure and a construction method thereof, wherein a connecting piece of a steel unit section is connected with a clamping piece of an adjacent steel unit section in a clamping manner, so that the adjacent two steel unit sections are fixedly connected, and a plurality of steel unit sections are spliced to form the underground continuous wall after concrete is poured. The following describes the structure of the locking type steel underground continuous wall with the attached drawings.

Referring to fig. 1, fig. 1 is a plan view of a locking type steel underground continuous wall structure according to the present invention. The following describes the structure of the locking type steel underground continuous wall with reference to fig. 1.

As shown in fig. 1, the locking type steel underground continuous wall structure of the present invention comprises:

a plurality of steel unit sections 11 with the height matched with that of the underground continuous wall to be formed;

a connecting member 12 fixed to one side of the steel unit segment 11; and

be fixed in the opposite side of steel unit section 11 and with connecting piece 12 assorted joint spare 13, the connecting piece 12 through steel unit section 11 is connected with the joint spare 13 joint of adjacent steel unit section 11 to make two adjacent steel unit section 11 fixed connection, thereby form underground continuous wall after the concreting amalgamation.

Preferably, the steel unit segments 11 are made of H-section steel to ensure the strength of the steel unit segments 11.

Preferably, the length of the connecting member 12 and the length of the clip member 13 are matched to the height of the steel unit segment 11.

As a preferred embodiment of the present invention, referring to fig. 2, the cross section of the connecting member 12 is C-shaped, and an opening 121 is formed near the adjacent connecting member 12;

the cross section of the clamping piece 13 is T-shaped, and the clamping piece 13 is clamped on the connecting piece 12, so that the two adjacent steel unit sections 11 are fixedly connected.

Specifically, the clamping member 13 includes a fixing plate 131 fixed to a side of the steel unit segment 11 and extending into the opening, and a clamping plate 132 perpendicularly connected to an end of the fixing plate 131 far from the steel unit segment 11, and the fixing plate 131 is clamped into the opening 121, so that the clamping plate 132 is located in the connecting member 12, and thereby two adjacent steel unit segments 11 are fixedly connected.

Preferably, the width of the clamping plate 132 is larger than the width of the opening 121, so as to prevent the clamping plate 132 from being released from the opening 121.

Further, the cross section of the steel unit section 11 is H-shaped, and includes two opposite side plates 111 and a wing plate 112 connected between the two side plates 111, the connecting member 12 is fixed at one end of the side plates 111, and the clamping member 13 is fixed at the other end of the side plates 111.

Specifically, as shown in fig. 3, the concrete-filled composite structure further includes a plurality of through holes 1121 formed in the wing plate 112 at intervals, so that concrete can flow through the through holes 1121, and the concrete is prevented from being accumulated at a local position.

The specific implementation method of the invention is as follows:

excavating a position where an underground diaphragm wall is to be formed to form a groove section 14, lowering a plurality of steel unit sections 11 into the groove section 14, and connecting a connecting piece 12 of each steel unit section 11 with a clamping piece 13 of an adjacent steel unit section 11 in a clamping manner, namely inserting a clamping and connecting plate 132 into the connecting piece 12 to fixedly connect the plurality of steel unit sections 11;

pouring concrete into the trough section 14 to form a channel fixing section 142 for covering the bottom of the steel unit sections 11, thereby fixing the positions of a plurality of steel unit sections 11, and filling soil bags 143 at the ends of the trough section 14;

pouring concrete into the groove section 14 to form a concrete section 141, burying a plurality of steel unit sections 11 in the concrete section 141, excavating adjacent groove sections 14, cleaning a concrete bag 143 in the poured groove section 14, and constructing a next concrete section to fixedly connect the adjacent concrete sections 141;

a plurality of dry concrete segments 141 formed by pouring are spliced to form the underground continuous wall.

The invention also provides a construction method of the lock catch type steel underground continuous wall structure, which comprises the following steps of combining the steps shown in the figures 4 and 5:

excavating a groove section 14 with a set length at the position of the underground continuous wall to be formed;

providing a plurality of steel unit sections 11, putting the steel unit sections 11 down into a groove section 14, and connecting a connecting piece 12 of each steel unit section 11 with a clamping piece 13 of an adjacent steel unit section 11 in a clamping manner so as to fixedly connect the two adjacent steel unit sections 11;

concrete is poured into the groove section 14 to form a concrete section 141, and a plurality of steel unit sections 11 are buried in the concrete section 141, and a plurality of dry concrete sections 141 are spliced to form the underground continuous wall.

Further, the method also comprises the following steps:

pouring concrete into the groove section 14 to a set elevation so as to form a fixed groove section 142 at the bottom of the groove section 14, and burying the bottom ends of the plurality of steel unit sections 11 in the fixed groove section 142;

and (3) backfilling the soil bags 143 at the end parts of the groove sections 142, pouring concrete into the groove sections 14 to form concrete sections 141, excavating the adjacent groove sections 14, cleaning the soil bags 143, and constructing the next concrete section.

The concrete operation mode of the construction method provided by the invention is as follows:

excavating a position where an underground diaphragm wall is to be formed to form a groove section 14, lowering a plurality of steel unit sections 11 into the groove section 14, and connecting a connecting piece 12 of each steel unit section 11 with a clamping piece 13 of an adjacent steel unit section 11 in a clamping manner, namely inserting a clamping and connecting plate 132 into the connecting piece 12 to fixedly connect the plurality of steel unit sections 11;

pouring concrete into the trough section 14 to form a channel fixing section 142 for covering the bottom of the steel unit sections 11, thereby fixing the positions of a plurality of steel unit sections 11, and filling soil bags 143 at the ends of the trough section 14;

pouring concrete into the groove section 14 to form a concrete section 141, burying a plurality of steel unit sections 11 in the concrete section 141, excavating adjacent groove sections 14, cleaning a concrete bag 143 in the poured groove section 14, and constructing the next concrete section 141 so that the adjacent concrete sections 141 are fixedly connected;

a plurality of dry concrete segments 141 formed by pouring are spliced to form the underground continuous wall.

While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.