CN213597970U - Miniature pipe jacking machine and damping device for pipe jacking tunneling complex stratum - Google Patents

Abstract

A damping device for miniature push bench and push bench to drive complex stratum is composed of several standard unit bases with different lengths, which are sequentially connected to form a whole, two slide rails arranged on the whole to form a running track, and a damping counterweight on the push bench or push bench. According to the underground design, the unit bases are fixed on a concrete foundation in parallel through screw piles after being connected, and the elevation is adjusted through elevation gaskets. The middle part below the counterweight body is provided with a semicircular arch hole, and four corners of the semicircular arch hole are respectively provided with an anti-deflection supporting leg. A plurality of roller groups are symmetrically arranged on two side surfaces in the arch hole. The push bench is arranged on the advancing track, and the damping balance weight is spanned on the push bench. By using the micro pipe jacking machine and the pipe jacking tunneling damping device in the complex stratum, the base is convenient and quick to mount, the track is level and standard, and the elevation adjustment is rapid and accurate. After the push bench enters a soil body, the damping counter weights sequentially move to the pipe body, and the damping counter weights keep the pipe body to stably advance, so that the problem that the tunneling parameters are unstable due to vibration of the pipe body is solved.

Description

Miniature pipe jacking machine and damping device for pipe jacking tunneling complex stratum

Technical Field

The utility model relates to a non-excavation engineering construction frock especially relates to a damping device of miniature pipe push bench and push pipe tunnelling complicated stratum.

Background

In the field of trenchless engineering construction, a push bench needs to be placed on a base in a starting process. In the current construction, the base which is commonly used is a simple bracket welded by I-shaped steel. The bracket needs to be manufactured again according to the structural condition of the well chamber and the elevation of the tunnel door every time of transition. The I-steel guide rail needs to be cut and welded every time of rework, time and labor are consumed, and manufacturing materials are wasted. More importantly, the simple bracket is rough to manufacture, and technical parameters such as flatness of the surface of the track, longitudinal flatness, elevation of each part and the like can not meet construction requirements, so that the friction and vibration coefficient is large when a pipe jacking machine or a jacking pipe advances, the shaking phenomenon occurs, and the tunneling quality is influenced. In addition, when the micro pipe jacking machine is used for construction in gravel stratum and gravel is crushed by a cutter head of the pipe jacking machine, the vibration of the pipe jacking machine is large, the vibration of the pipe jacking machine is transmitted to the concrete pipe body to be amplified, the vibration of the pipe jacking is aggravated, and the construction precision and the tunneling stability are further influenced. At present, no reference is made in China for the experience of how to reduce the vibration of the pipe jacking machine in the tunneling process, so that the pipe jacking machine can stably tunnel and improve the construction quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the vibration is big among push bench and the push pipe tunnelling work, providing a convenient to use, reuse rate is high, can reduce energy consumption, reduces construction cost, can weaken push bench and concrete push pipe construction vibrations, improves the miniature push bench of push pipe construction engineering quality and the damping device of push pipe tunnelling complicated stratum.

The purpose of the utility model is that can realize. The utility model discloses a damping device characterized in that of complicated stratum of miniature pipe push bench and push pipe tunnelling: the device is composed of a plurality of unit bases which are connected and combined, two sliding rails are arranged on the combined body to form a traveling track, and a damping counterweight which falls on a push bench or a push bench.

The utility model discloses miniature push bench and push pipe tunnelling damping device in complicated stratum, wherein the unit base has the standard component of a plurality of specifications for length, and the unit base includes a base steel sheet, fixed at least three guide rail seat above the base steel sheet, is equipped with four connecting holes around wherein above every at the guide rail seat at both ends, and two adjacent unit bases are connected gradually by the connecting rod through the connecting hole of guide rail seat, lay the guide rail on the guide rail seat, four angle departments of base steel sheet upper surface respectively are equipped with a base rings, and every limit of two edges respectively is equipped with at least three mounting hole around the base steel sheet, the unit base is fixed through the mounting hole installation on advancing the underground concrete foundation stud that the track axis was set for according to the push bench.

The utility model discloses miniature pipe push bench and push pipe tunnelling damping device in complicated stratum, wherein guide rail seat on the unit base is two hump structures, and every hump cross section becomes the perpendicular ascending right angled triangle of apex angle, and two vertical lined humps install a guide rail respectively separately on the unit base that connects gradually and constitute the double track way.

The utility model discloses miniature pipe push bench and push pipe tunnel damping device in complicated stratum, wherein be equipped with elevation adjusting shim below the basic steel sheet mounting hole and between the concrete foundation in the pit on fixed stud.

The utility model discloses miniature push bench and push pipe tunnel damping device in complicated stratum, wherein the shock attenuation counter weight includes the weight body of a flat rectangular bodily form, four angle departments of weight body upper surface respectively are equipped with a counter weight rings, and semi-circular arch cave is made to weight body lower surface center fore-and-aft direction, arch cave upper portion both sides symmetry respectively are equipped with two at least two rows of two roller trains of every row, four angle departments of weight body lower surface respectively install one through the bolt and prevent the landing leg that deflects.

The utility model discloses miniature pipe push bench and push pipe tunnel damping device in complicated stratum, wherein prevent deflecting landing leg lower extreme inboard and be equipped with an inclined plane, four inclined planes of four landing legs all with the outer inclined plane of hump triangle-shaped clearance match constitution prevent the excessive deflection structure of shock attenuation counter weight.

The utility model discloses miniature push bench and push pipe tunnelling damping device in complicated stratum and prior art difference lie in the utility model discloses miniature push bench and push pipe tunnelling damping device in complicated stratum connects gradually into whole and puts two slide rails on the whole and constitute the track of marcing and one fall and press the shock attenuation counter weight two parts constitution on push bench or push pipe by the standard component unit base of a plurality of different length specifications. According to the underground design, after the unit bases are connected, the unit bases are fixed on a concrete foundation in parallel through screw piles, and the elevation is adjusted through elevation gaskets. The center under the counterweight body is provided with a semicircular arch cave, and two sides inside the arch cave are symmetrically provided with at least two roller groups. Four corners of the counterweight body are respectively provided with an anti-deflection supporting leg. After the push bench is assembled and placed on the travelling track, the lifting rings enable the damping balance weight to straddle the push bench. Use the utility model discloses miniature pipe push bench and push pipe tunnelling damping device in complicated stratum, base simple to operate is swift, and the adjustment of base elevation is accurate rapidly, has solved simple and easy bracket and has need cut, the loaded down with trivial details technology of welded and can not have enough to meet the need the use to the I-steel according to well head length, the problem of extravagant raw and other materials. In the construction, after the push bench enters a soil body, the damping balance weight sequentially moves to the concrete pipe body through the rollers to press the pipe body, so that the pipe is not damaged, the pipe body is kept to stably advance, and the problems of poor construction precision and unstable tunneling parameters caused by vibration of the machine body are greatly solved.

The following will further explain the utility model of a miniature pipe jacking machine and a damping device for pipe jacking and tunneling complex stratum with the aid of the attached drawings.

Drawings

FIG. 1 is a schematic three-dimensional structure diagram of a micro pipe jacking machine and a damping device for pipe jacking tunneling complex stratum.

Fig. 2 is a schematic view of a front view structure of a micro pipe jacking machine and a damping device for pipe jacking tunneling a complex stratum.

FIG. 3 is a schematic view of the structure of a miniature pipe jacking machine and a damping device for pipe jacking and tunneling complex strata.

FIG. 4 is a schematic diagram of a side view structure of a micro pipe jacking machine and a damping device for pipe jacking tunneling a complex stratum.

Fig. 5 is a three-dimensional structure diagram of a unit base.

Fig. 6 is a schematic sectional view of the shock-absorbing weight.

Fig. 7 is a schematic view of the bottom three-dimensional structure of the shock-absorbing weight.

Detailed Description

As shown in fig. 1-4, the damping device for the micro pipe jacking machine and the pipe jacking tunneling complex formation is composed of two parts, namely a travelling track formed by combining and connecting a plurality of unit bases 1 and placing two slide rails on the combination and a damping counterweight 2 falling on the pipe jacking machine or the pipe jacking.

As shown in fig. 5, the unit base 1 is a standard member having a length of several specifications. The unit base 1 comprises a base steel plate 1.1. At least three guide rail seats 1.2 are fixed on the base steel plate 1.1, wherein at least four connecting holes 1.3 are arranged on each of the guide rail seats 1.2 at the front end and the rear end. Two adjacent unit bases 1 are connected in sequence through connecting holes 1.3 of guide rail seats 1.2 by connecting rods. And a guide rail 1.4 is laid on the guide rail seat 1.2. Four corners of the upper surface of the base steel plate 1.1 are respectively provided with a base lifting ring 1.5. At least three mounting holes 1.6 are respectively arranged on each side of the front edge and the rear edge of the base steel plate 1.1. The unit base 1 is installed and fixed on the underground concrete foundation stud set according to the axis of the advancing track of the push bench through the installation hole 1.6.

As shown in fig. 5, the rail seat 1.2 on the unit base 1 is in a double-hump structure, and each hump 1.2.1 is a right-angled triangle with the vertical upward vertex angle in cross section. Two longitudinal in-line humps 1.2.1 on the unit bases 1 connected in sequence are respectively provided with a guide rail 1.4 to form a double rail.

The utility model discloses among the damping device in miniature pipe push bench and push pipe tunnelling complex stratum, be equipped with elevation adjusting shim below the basic steel sheet 1.1 mounting hole 1.6 and between the concrete foundation in the pit on fixed stud.

In the embodiment, through the technical design, the double-gauge travelling rail formed by the standard unit base 1 avoids the processes of cutting and welding in the installation of a simple bracket, and the construction progress is fast. The installed double-track advancing track is smooth and flat, elevation adjustment meets the regulations, and the problems that the traditional simple bracket track is rough and not smooth, elevation adjustment is difficult, and friction shaking coefficient is large to cause the advancing vibration of the push bench are solved.

As shown in fig. 6 and 7, the shock-absorbing counterweight 2 includes a rectangular parallelepiped counterweight body 2.1, counterweight hanging rings 2.2 are respectively disposed at four corners of the upper surface of the counterweight body 2.1, and a semicircular arch 2.3 is formed in the front-rear direction of the center of the lower surface of the counterweight body 2.1. Two sides of the upper part of the arch cave 2.3 are respectively and symmetrically provided with at least two rows of two roller groups 2.3 in each row. Four corners of the lower surface of the counterweight body 2.1 are respectively provided with an anti-deflection supporting leg 2.5 through bolts 2.4, and the inner side of the lower end of the anti-deflection supporting leg 2.4 is provided with an inclined plane a.

As shown in fig. 1 and 2, the four inclined surfaces a of the four legs 2.5 are in clearance fit with the triangular inclined surfaces of the hump 1.2.1 to form a structure for preventing the excessive deflection of the damper weight 2. When the damping counterweight 1 deflects leftwards or rightwards during use, the inclined surfaces a of the two supporting legs 2.5 which deflect downwards on one side are in fit contact with the outer inclined surfaces of the hump 1.2.1 triangle on the same side, the damping counterweight 2 is supported and cannot deflect excessively, so that the damping counterweight is kept stable, and the damping counterweight continues to work safely.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims (6)

1. The utility model provides a damping device in complicated stratum of miniature push bench and push pipe tunnelling which characterized in that: the device is composed of two parts, namely a travelling track formed by connecting and combining a plurality of unit bases (1) and placing two sliding rails on the combined body, and a damping counterweight (2) falling on a push bench or a push pipe.

2. The micro pipe jacking machine and the damping device for pipe jacking tunneling complex stratum according to claim 1 are characterized in that: unit base (1) has the standard component of a plurality of specifications for length, and unit base (1) includes a base steel sheet (1.1), fixed at least three guide rail seat (1.2) above base steel sheet (1.1), wherein is equipped with four connecting holes (1.3) above guide rail seat (1.2) at both ends around at least, and connecting hole (1.3) through guide rail seat (1.2) of two adjacent unit bases (1) are connected gradually by the connecting rod, lay guide rail (1.4) on guide rail seat (1.2), four angle departments of base steel sheet (1.1) upper surface respectively are equipped with one base rings (1.5), and two edges respectively are equipped with at least three mounting hole (1.6) on every side around base steel sheet (1.1), unit base (1) is fixed on the underground concrete foundation screw pile of advancing the track push pipe axis and setting according to the machine through mounting hole (1.6) installation.

3. The micro pipe jacking machine and the damping device for pipe jacking tunneling complex stratum according to claim 1 or 2, characterized in that: the guide rail seat (1.2) on the unit base (1) is of a double-hump structure, the cross section of each hump (1.2.1) is a right-angled triangle with a vertical upward vertex angle, and two longitudinal rows of humps (1.2.1) on the unit base (1) which are sequentially connected are respectively provided with a guide rail (1.4) to form double rails.

4. The micro pipe jacking machine and the damping device for pipe jacking tunneling complex stratum according to claim 3, characterized in that: elevation adjusting gaskets are arranged between the lower surfaces of the mounting holes (1.6) of the foundation steel plates (1.1) and the underground concrete foundation on the fixed screw piles.

5. The micro pipe jacking machine and the damping device for pipe jacking tunneling complex stratum according to claim 1 are characterized in that: shock attenuation counter weight (2) include the weight body (2.1) of a flat rectangular bodily form, four angle departments of weight body (2.1) upper surface respectively are equipped with a counter weight rings (2.2), and semi-circular arch cave (2.3) are made to weight body (2.1) lower surface center fore-and-aft direction, arch cave (2.3) upper portion both sides symmetry respectively are equipped with two row at least two roller sets (2.3) of every row, four angle departments of weight body (2.1) lower surface respectively install one through bolt (2.4) and prevent deflecting landing leg (2.5).

6. The micro pipe jacking machine and the damping device for pipe jacking tunneling complex stratum according to claim 5 are characterized in that: the inner side of the lower end of the anti-deflection supporting leg (2.5) is provided with an inclined plane (a), and the four inclined planes (a) of the four supporting legs are in clearance matching with the triangular outer inclined plane of the hump (1.2.1) to form a structure for preventing the shock absorption counterweight (2) from excessively deflecting.

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