CN213476899U - Steel bearing structure for foundation pit construction - Google Patents

Abstract

The utility model relates to a construction technical field specifically is a steel bearing structure is used in foundation ditch construction, including the foundation ditch, the laminating is equipped with the guard plate on the corner inside wall of foundation ditch, and the quantity of guard plate is a plurality of, and the outer wall of guard plate about both sides all laminate and be equipped with the stiffener, the four corners of guard plate all runs through and is equipped with first stock, and the inner of first stock all runs through in the foundation ditch, the stiffener level sets up, and is equipped with the inserted bar between two upper and lower stiffeners, fixed connection between inserted bar and the stiffener, the outer end central authorities of inserted bar all are equipped with the support horizontal pole perpendicularly, beneficial effect is: this practicality is through the laminating setting of polylith guard plate on the inner wall of foundation ditch to provide the holding power through the stand, wherein all run through between the four corners of guard plate and the foundation ditch and be provided with the stock, and the bottom of stand also is provided with bracing and stable bottom plate equally, and above-mentioned each structure all is used for improving the stability and the intensity of foundation ditch, and the supporting effect at the inside turning of realization foundation ditch that can be fine prevents to collapse.

Description

Steel bearing structure for foundation pit construction

Technical Field

The utility model relates to a construction technical field specifically is a steel bearing structure is used in foundation ditch construction.

Background

The submarine tunnel is a traffic pipeline engineering for building traffic and transportation between land areas under the seabed of a strait, a bay, an estuary and the like, and in the building process, a large number of foundation pits need to be dug on two sides of the strait for foundation construction and tunnel support building. The foundation ditch is constantly excavating and the in-process of widening, because the impact pressure who receives the sea water is great, leads to the foundation ditch inner wall infiltration so that the phenomenon of collapsing easily, and in serious cases, can cause huge life safety danger. However in prior art, also there is not a fine steel bearing structure who is used for special support foundation ditch turning, consequently, all there are hindrance and influence to a certain extent to the construction of building of foundation ditch and the construction of engineering, for this reason, the utility model provides a steel bearing structure is used for solving above-mentioned problem for the foundation ditch construction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steel bearing structure is used in foundation ditch construction to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a steel supporting structure for foundation pit construction comprises a foundation pit, wherein protective plates are attached to the inner side walls of the corners of the foundation pit, the number of the protective plates is a plurality, and the upper and lower sides of the outer wall of the protection plate are respectively provided with a reinforcing rod in a fitting manner, four corners of the protection plate are respectively provided with a first anchor rod in a penetrating manner, the inner end of the first anchor rod penetrates through the foundation pit, the reinforcing rods are horizontally arranged, an inserted rod is arranged between the upper reinforcing rod and the lower reinforcing rod, the inserted rods are fixedly connected with the reinforcing rods, the centers of the outer ends of the inserted rods are vertically provided with supporting cross rods, the inner part of the foundation pit is vertically provided with a stand column which is positioned between the end parts of the two supporting cross rods, the upright post and the supporting cross bar are connected and fixed through a bolt, the two sides of the bottom of the upright post are both hinged with inclined struts, the bottom end of the upright post is welded with a stable bottom plate, the bottom of bracing all articulates and is equipped with the heel brace, and the heel brace all laminates on the bottom of foundation ditch.

Preferably, the upper and lower both sides of stiffener are all laminated and are equipped with spacing piece, and the spout has all been seted up to the upper and lower both sides of stiffener, spacing equal welded fastening of piece is on the guard plate, and the equal integrated into one piece in the inner of spacing piece is equipped with the fixture block, the fixture block all imbeds inside the spout.

Preferably, the stable bottom plate is a rectangular plate-shaped structure, the four corners of the stable bottom plate are provided with second anchor rods in a penetrating mode, tooth grooves are evenly formed in the bottom ends of the foot supports, and the tooth grooves are attached to the bottom end of the inside of the foundation pit.

Preferably, the outer end welding of stiffener is equipped with the position sleeve, the position sleeve is character cut in bas-relief structure, and the position sleeve all cup joints in the outside of inserted bar, and passes through bolted connection between the two and fix.

Preferably, inside one side of foundation ditch is provided with two stiffeners and two inserted bars altogether, and the inside one side corner of foundation ditch is provided with two stands altogether.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the protective plates are arranged on the inner wall of the foundation pit in an attaching mode, supporting force is provided through the stand columns, anchor rods are arranged between the four corners of the protective plates and the foundation pit in a penetrating mode, the bottom of each stand column is also provided with the inclined strut and the stabilizing bottom plate, all the structures are used for improving the stability and strength of the foundation pit, the supporting effect of corners inside the foundation pit can be well achieved, and collapse is prevented;

2. this practical well stiffener sliding connection is on spacing piece, and the inserted bar then runs through inboard at the position sleeve, supports the horizontal pole again with inserted bar and stand between through bolted connection fixed, simple to operate on the whole compares in traditional technology, this practical steel bearing structure easy dismounting, swift has also improved whole efficiency of construction simultaneously.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic view of the structure at a position a of the present invention.

In the figure: the anchor rod comprises a foundation pit 1, a protection plate 2, a reinforcing rod 3, a first anchor rod 4, a limiting piece 5, a sliding groove 6, a positioning sleeve 7, an inserted rod 8, a supporting cross rod 9, a vertical column 10, an inclined strut 11, a stable bottom plate 12, a foot support 13, a second anchor rod 14 and a tooth groove 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a steel bearing structure for foundation ditch construction, including foundation ditch 1, the laminating is equipped with guard plate 2 on the corner inside wall of foundation ditch 1, the quantity of guard plate 2 is a plurality of, and both sides all laminate about the outer wall of guard plate 2 and be equipped with stiffener 3, the four corners of guard plate 2 all runs through and is equipped with first stock 4, and the inner of first stock 4 all runs through in foundation ditch 1, first stock 4 runs through perpendicularly in the inner wall of foundation ditch 1, its outer end is reserved on guard plate 2, therefore, the four corners of guard plate 2 is opened promptly originally and is equipped with the round hole, supply the stock to insert.

3 levels of stiffener are set up, and be equipped with inserted bar 8 between two upper and lower stiffeners 3, fixed connection between inserted bar 8 and the stiffener 3, the outer end central authorities of inserted bar 8 all are equipped with perpendicularly and support horizontal pole 9, the vertical stand 10 that is equipped with in inside of foundation ditch 1, stand 10 is located between the tip of two support horizontal poles 9, and it is fixed through bolted connection between stand 10 and the support horizontal pole 9, the bottom both sides of stand 10 all articulate and are equipped with bracing 11, the bottom welding of stand 10 is equipped with PMKD 12, the bottom of bracing 11 all articulates and is equipped with heel brace 13, and heel brace 13 all laminates on the bottom end of foundation ditch 1, as shown in fig. 1, the top of bracing 11 articulates on stand 10, its top articulates on heel brace 13, its effect is the stability and the support intensity of reinforcing stand 10, prevent that stand 10 from toppling over to the outside.

The upper and lower both sides of stiffener 3 are all laminated and are equipped with spacing piece 5, and spout 6 has all been seted up to the upper and lower both sides of stiffener 3, and spacing 5 equal welded fastening is on guard plate 2, and the equal integrated into one piece in the inner of spacing piece 5 is equipped with the fixture block, and the fixture block all imbeds inside spout 6, as shown in fig. 2, 3 sliding connection of stiffener are inboard at spacing piece 5, therefore it is very convenient to install.

Stabilising plate 12 is rectangle platelike structure, and its four corners all runs through and is equipped with second stock 14, and tooth's socket 15 has evenly been seted up to heel brace 13's bottom, and tooth's socket 15 all laminates on foundation ditch 1's inside bottom, and tooth's socket 15 and heel brace 13 are the integrated into one piece structure, and its effect is the stability of reinforcing heel brace 13, prevents that it from sliding on foundation ditch 1's inside bottom, influences the supporting effect.

The outer end welding of stiffener 3 is equipped with position sleeve 7, and position sleeve 7 is character cut in bas-relief structure, and position sleeve 7 all cup joints in the outside of inserted bar 8, and fixes through bolted connection between the two, and inserted bar 8 runs through in two position sleeve 7 inboards promptly to it is fixed with it through the bolt.

Two reinforcing rods 3 and two inserted rods 8 are arranged on one side of the inside of the foundation pit 1, two upright columns 10 are arranged on the corners of one side of the inside of the foundation pit 1, and the quantity and the position of the upright columns are distributed as shown in fig. 1.

The working principle is as follows: the utility model discloses in, guard plate 2 is all through 4 fixed mounting of first stock on the inner wall of foundation ditch 1, and 3 then sliding connection of stiffener are 5 inboards at spacing, simultaneously, and the vertical installation of stand 10 is on the inside bottom of foundation ditch 1 to connect through supporting horizontal pole 9 between stand 10 and the stiffener 3. Be provided with at the bottom of stand 10 and stabilize bottom plate 12, stabilize bottom plate 12 and pass through second stock 14 fixed connection inside foundation ditch 1, prevent that stand 10 from shifting, influence steel construction support effect. And meanwhile, the inclined strut 11 is hinged to the outer side of the bottom of the upright post 10, the foot strut 13 is hinged to the bottom end of the inclined strut 11, and the foot strut 13 is attached to the bottom end of the foundation pit 1, so that the supporting effect of the upright post 10 is further improved, and the displacement of the upright post is prevented. As for supporting horizontal pole 9, its one end bolted connection is on stand 10, and other end bolted connection is on inserted bar 8, and inserted bar 8 runs through in the position sleeve 7 inboard again, so can say that, this practical steel support structure simple to operate, the dismouting is swift, has improved the efficiency of construction, and the supporting effect is good simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a steel bearing structure for foundation ditch construction, includes foundation ditch (1), its characterized in that: the corner inner side wall of the foundation pit (1) is provided with protective plates (2) in a laminating mode, the protective plates (2) are a plurality in number, reinforcing rods (3) are arranged on the upper side and the lower side of the outer wall of each protective plate (2) in a laminating mode, first anchor rods (4) are arranged in four corners of each protective plate (2) in a penetrating mode, the inner ends of the first anchor rods (4) penetrate through the foundation pit (1), the reinforcing rods (3) are horizontally arranged, inserting rods (8) are arranged between the upper reinforcing rods and the lower reinforcing rods (3), the inserting rods (8) are fixedly connected with the reinforcing rods (3), supporting cross rods (9) are vertically arranged in the centers of the outer ends of the inserting rods (8), stand columns (10) are vertically arranged inside the foundation pit (1), the stand columns (10) are located between the end portions of the two supporting cross rods (9), the stand columns (10) are fixedly connected with the supporting cross rods (9) through bolts, inclined supports (11) are hinged to, the bottom welding of stand (10) is equipped with stabilizer plate (12), the bottom of bracing (11) all articulates and is equipped with heel brace (13), and heel brace (13) all laminate on the bottom of foundation ditch (1).

2. The steel support structure for foundation pit construction according to claim 1, wherein: the upper and lower both sides of stiffener (3) are all laminated and are equipped with spacing piece (5), and spout (6) have all been seted up to the upper and lower both sides of stiffener (3), spacing piece (5) equal welded fastening is on guard plate (2), and the equal integrated into one piece in the inner of spacing piece (5) is equipped with the fixture block, the fixture block all imbeds inside spout (6).

3. The steel support structure for foundation pit construction according to claim 1, wherein: stabilize bottom plate (12) and all run through and be equipped with second stock (14) for rectangle platelike structure, tooth's socket (15) have evenly been seted up to the bottom of heel brace (13), and tooth's socket (15) all laminate on the inside bottom of foundation ditch (1).

4. The steel support structure for foundation pit construction according to claim 1, wherein: the outer end welding of stiffener (3) is equipped with position sleeve (7), position sleeve (7) are character cut in bas-relief structure, and position sleeve (7) all cup joint in the outside of inserted bar (8), and pass through bolted connection between the two and fix.

5. The steel support structure for foundation pit construction according to claim 1, wherein: the novel foundation pit is characterized in that two reinforcing rods (3) and two inserted rods (8) are arranged on one side of the inside of the foundation pit (1), and two upright columns (10) are arranged at the corners of one side of the inside of the foundation pit (1).

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