Multi-angle cement-soil pile construction equipment in tunnel and tunnel reinforcing construction method

文档序号：1239962 发布日期：2020-08-18 浏览：20次中文

阅读说明：本技术 洞内多角度水泥土桩施工设备及隧道加固施工方法 (Multi-angle cement-soil pile construction equipment in tunnel and tunnel reinforcing construction method ) 是由刘兴旺胡黎江恩德唐登李家正于 2020-04-16 设计创作，主要内容包括：本发明公开了一种洞内多角度水泥土桩施工设备及隧道加固施工方法,旨在提供一种能够有效简化隧道加固施工步骤,提高施工效率,并且隧道加固效果好的洞内多角度水泥土桩施工设备及隧道加固施工方法。洞内多角度水泥土桩施工设备,包括高压旋喷桩机,高压旋喷桩机包括车体、行走机构、工作平台、钻杆装置、旋转式塔杆机构及动力头,旋转式塔杆机构包括通过水平轴转动设置在工作平台上的转动座、用于驱动转动座旋转的转动座旋转执行机构、转动设置在转动座上的支撑塔杆、设置在转动座上用于驱动支撑塔杆旋转的塔杆旋转执行机构、设置在支撑塔杆上的导轨、沿导轨滑动的滑动座,动力头设置在滑动座上用于驱动旋喷钻杆旋转。(The invention discloses multi-angle cement-soil pile construction equipment in a tunnel and a tunnel reinforcing construction method, and aims to provide the multi-angle cement-soil pile construction equipment in the tunnel and the tunnel reinforcing construction method which can effectively simplify tunnel reinforcing construction steps, improve construction efficiency and have a good tunnel reinforcing effect. Multi-angle soil cement pile construction equipment in hole, spout the stake machine soon including the high pressure, the high pressure spouts the stake machine soon and includes the automobile body, running gear, work platform, the drilling rod device, rotation type tower pole mechanism and unit head, rotation type tower pole mechanism includes rotates the rotation seat that sets up on work platform through the horizontal axis, be used for the rotatory rotation seat rotary actuator who rotates the seat of drive, rotate the support tower pole that sets up on rotating the seat, the setting is used for the rotatory tower pole rotary actuator who supports the tower pole of drive on rotating the seat, the guide rail of setting on supporting the tower pole, along the gliding sliding seat of guide rail, the unit head setting is used for the drive to spout the drilling rod rotation soon on the sliding seat.)

1. A multi-angle cement soil pile construction equipment in a hole comprises a high-pressure rotary jet pile machine, wherein the high-pressure rotary jet pile machine comprises a vehicle body, a walking mechanism, a working platform, a drill rod device, a rotary tower rod mechanism and a power head, and is characterized in that the rotary tower rod mechanism comprises a rotary seat arranged on the working platform in a rotating way through a horizontal shaft, a rotary seat rotary executing mechanism used for driving the rotary seat to rotate, a supporting tower rod arranged on the rotary seat in a rotating way, a tower rod rotary executing mechanism arranged on the rotary seat and used for driving the supporting tower rod to rotate, a guide rail arranged on the supporting tower rod, a sliding seat sliding along the guide rail and a sliding seat mobile executing mechanism used for driving the sliding seat, the horizontal shaft is vertical to a rotating shaft of the supporting tower rod, the drill rod device comprises a rotary jet drill rod arranged on the supporting tower rod, the rotary jet drill rod is parallel to the guide rail, and the bottom of the rotary jet, the power head is arranged on the sliding seat and used for driving the rotary spraying drill rod to rotate.

2. The apparatus as claimed in claim 1, wherein the rotary jetting drill rod comprises a drill body, a drill rod head disposed at a lower end of the drill body, and a drill rod tail disposed at an upper end of the drill body, the drill rod tail is provided with a cement grouting port and a gas injection port, the drill body comprises a plurality of sections of single-hole pipes connected in sequence, an inner hole of the single-hole pipe forms a grouting pipeline, the high-pressure rotary jetting hole is disposed on a side wall of the drill rod head, the high-pressure rotary jetting hole is communicated with the grouting pipeline, and the drill bit is disposed at a lower end of the drill rod head.

3. The apparatus of claim 2, wherein any two adjacent single-hole pipes are connected by a connecting pipe, the connecting pipe is connected with the single-hole pipe by a plug-in type connecting structure, and the plug-in type connecting structure comprises:

prevent changeing connection structure, prevent changeing connection structure including coaxial setting polygon grafting pipe on the connecting tube end, set up radial spacing hole on the lateral surface of polygon grafting pipe, set up in haplopore pipe tip be used for with polygon grafting pipe complex polygon spliced eye, set up on the lateral surface of haplopore pipe and with the radial bolt hole that the polygon spliced eye is linked together and with radial bolt hole complex connecting bolt, polygon grafting pipe is inserted and is established in the polygon spliced eye, connecting bolt's tip be equipped with radial spacing hole complex reference column, connecting bolt passes through threaded connection with radial bolt hole, and the reference column on the connecting bolt inserts in the radial spacing hole.

4. The apparatus as claimed in claim 3, wherein the insertion type connection structure further comprises a sealing connection structure, the sealing connection structure comprises a sealing circular tube disposed at an end of the polygonal insertion tube and a sealing circular hole disposed at a bottom of the polygonal insertion hole, the sealing circular tube is inserted into the sealing circular hole, and the sealing circular tube is connected to the sealing circular hole in a sealing manner.

5. The in-hole multi-angle cement-soil pile construction equipment as claimed in claim 3, wherein the plug-in type connection structure further comprises a sealing connection structure, the sealing connection structure comprises a sealing circular tube arranged at the end of the polygonal plug-in pipe, a floating sealing taper sleeve slidably sleeved on the sealing circular tube, an elastic member positioned between the floating sealing taper sleeve and the end of the polygonal plug-in pipe, and a tapered sealing hole arranged at the bottom of the polygonal plug-in hole, the floating sealing taper sleeve is slidably and sealingly connected with the sealing circular tube, the outer periphery of the floating sealing taper sleeve is conical, the tapered sealing hole is matched with the floating sealing taper sleeve, and the floating sealing taper sleeve is inserted into the tapered sealing hole; the radial limiting hole is a conical limiting hole, the inner diameter of the radial limiting hole is gradually reduced from the hole opening to the hole bottom, and the positioning column is a conical positioning column; in the process that the positioning column is inserted into the radial limiting hole, the floating sealing taper sleeve is driven to move towards the conical sealing hole, so that the outer wall surface of the floating sealing taper sleeve abuts against the inner wall surface of the conical sealing hole and compresses the elastic piece, and the elastic piece provides elastic force after being compressed, so that the outer wall surface of the floating sealing taper sleeve is tightly pressed on the inner wall surface of the conical sealing hole.

6. A multi-angle soil cement pile construction equipment in a hole as claimed in claim 2 or 3 or 4 or 5, wherein the drill rod tail comprises a tail pipe body connected with the single hole pipe at the upper end of the drill body and an input pipe sleeved on the tail pipe body, the input pipe and the tail pipe body can rotate relatively, the cement grouting port and the gas injection port are arranged on the input pipe, the input pipe is fixed on the support tower rod through a connecting piece, and the power head is used for driving the drill body of the rotary jet drill rod to rotate.

7. A multi-angle soil-cement pile construction equipment in a hole as claimed in claim 1, 2, 3, 4 or 5, wherein said rotating base rotating actuator is a first cylinder and said tower rotating actuator is a second cylinder.

8. A multi-angle soil cement pile construction equipment in a hole as claimed in claim 1 or 2 or 3 or 4 or 5, wherein said running gear is a crawler running gear or a rubber wheel running gear or an iron wheel running gear suitable for running on a rail.

9. A tunnel reinforcing construction method using the multi-angle soil-cement pile construction equipment in the tunnel as claimed in claims 1 to 8, characterized by comprising the following steps in sequence:

firstly, driving a high-pressure jet grouting pile machine to a specified position in a tunnel;

(II), constructing a vertical high-pressure jet grouting pile right below a certain section of tunnel, and specifically constructing the pile by the following steps:

firstly, a rotating seat is driven to rotate by a rotating seat rotating executing mechanism, so that a support tower rod and a rotary spraying drill rod are positioned in a vertical plane; the support tower rod is driven to rotate by the tower rod rotation executing mechanism, so that the support tower rod and the rotary spraying drill rod are in a vertical state;

secondly, a rotary spraying drill rod utilized by the high-pressure rotary spraying pile machine directly drills holes downwards vertically in the tunnel, and the rotary spraying drill rod penetrates through the inner wall of the tunnel to enable the high-pressure rotary spraying holes to drill into a set depth;

then, directly utilizing the jet grouting drill rod to perform high-pressure jet grouting, so that vertically distributed vertical high-pressure jet grouting piles are formed right below the inner wall of the tunnel, and the tunnel is supported through the vertical high-pressure jet grouting piles; then lifting the jet grouting drill rod into the tunnel;

then, the high-pressure jet grouting pile machine runs for a set distance along the tunnel;

thirdly, performing secondary filtration; returning to the second step until the construction of the vertical high-pressure jet grouting pile below the section of the tunnel is completed;

thirdly, constructing a right-inclined high-pressure rotary spraying pile at the right lower part of a certain section of tunnel, wherein the right-inclined high-pressure rotary spraying pile and the vertical high-pressure rotary spraying pile are positioned below the same section of tunnel; the concrete construction steps are as follows:

the rotating seat is driven to rotate by the rotating seat rotating executing mechanism, so that the support tower rod and the rotary spraying drill rod are positioned in a vertical plane; the support tower rod is driven to rotate rightwards by the tower rod rotation executing mechanism, so that the support tower rod and the rotary spraying drill rod are in an inclined state, and the inclined angle of the rotary spraying drill rod is 0-90 degrees;

secondly, a rotary spraying drill rod utilized by the high-pressure rotary spraying pile machine is used for directly drilling towards the lower right in the tunnel, and the rotary spraying drill rod penetrates through the inner wall of the tunnel to enable a high-pressure rotary spraying hole to be drilled into a set depth;

then, directly utilizing the rotary spraying drill rod to perform high-pressure jet grouting, so that right-inclined high-pressure rotary spraying piles which are distributed in an inclined mode are formed on the right lower portion of the inner wall of the tunnel, and the tunnel is supported through the right-inclined high-pressure rotary spraying piles; then lifting the jet grouting drill rod into the tunnel;

then, the high-pressure jet grouting pile machine runs for a set distance along the tunnel;

thirdly, performing secondary filtration; returning to the second step until the construction of the right-inclined high-pressure jet grouting pile below the section of the tunnel is completed;

constructing a left inclined high-pressure jet grouting pile at the left lower part of a certain section of tunnel, wherein the left inclined high-pressure jet grouting pile and the vertical high-pressure jet grouting pile are positioned below the same section of tunnel; the concrete construction steps are as follows:

the rotating seat is driven to rotate by the rotating seat rotating executing mechanism, so that the support tower rod and the rotary spraying drill rod are positioned in a vertical plane; the support tower rod is driven to rotate leftwards by the tower rod rotation executing mechanism, so that the support tower rod and the rotary spraying drill rod are in an inclined state, and the inclined angle of the rotary spraying drill rod is 0-90 degrees;

secondly, a rotary spraying drill rod utilized by the high-pressure rotary spraying pile machine is used for directly drilling towards the lower left side in the tunnel, and the rotary spraying drill rod penetrates through the inner wall of the tunnel to enable a high-pressure rotary spraying hole to be drilled into a set depth;

then, directly utilizing the jet grouting drill rod to carry out high-pressure jet grouting, so that a tunnel forms a left-inclined high-pressure jet grouting pile which is obliquely distributed at the left lower part of the inner wall, and the tunnel is supported through the left-inclined high-pressure jet grouting pile; then lifting the jet grouting drill rod into the tunnel;

then, the high-pressure jet grouting pile machine runs for a set distance along the tunnel;

thirdly, performing secondary filtration; and returning to the second step until the construction of the left-inclined high-pressure jet grouting pile below the section of the tunnel is completed.

Technical Field

The invention relates to the field of high-pressure jet grouting construction, in particular to multi-angle cement-soil pile construction equipment in a tunnel and a tunnel reinforcing construction method.

Background

At present, after a tunnel (such as a subway tunnel) is constructed, a certain section of tunnel needs to be reinforced so as to improve the structural stability of the tunnel; however, the existing tunnel reinforcing construction equipment and construction method are immature in technology, and have the problems of complex construction steps, low construction efficiency, poor reinforcing effect of a constructed tunnel reinforcing structure and the like. In view of this, how to develop a tunnel reinforcing construction device and a tunnel reinforcing construction method to simplify the construction steps and improve the construction efficiency and the tunnel reinforcing effect is significant.

Disclosure of Invention

The invention aims to provide the in-tunnel multi-angle cement-soil pile construction equipment and the tunnel reinforcing construction method, which can effectively simplify tunnel reinforcing construction steps, improve construction efficiency and have good tunnel reinforcing effect.

The technical scheme of the invention is as follows:

a multi-angle cement soil pile construction device in a hole comprises a high-pressure rotary jet pile machine, wherein the high-pressure rotary jet pile machine comprises a vehicle body, a walking mechanism, a working platform, a drill rod device, a rotary tower rod mechanism and a power head, the rotary tower rod mechanism comprises a rotary seat arranged on the working platform in a rotating mode through a horizontal shaft, a rotary seat rotary executing mechanism used for driving the rotary seat to rotate, a support tower rod arranged on the rotary seat in a rotating mode, a tower rod rotary executing mechanism arranged on the rotary seat and used for driving the support tower rod to rotate, a guide rail arranged on the support tower rod, a sliding seat sliding along the guide rail and a sliding seat mobile executing mechanism used for driving the sliding seat, the horizontal shaft is vertical to a rotating shaft of the support tower rod, the drill rod device comprises a rotary jet drill rod arranged on the support tower rod, the rotary jet drill rod is parallel to the guide rail, and the bottom of the rotary jet drill rod is, the power head is arranged on the sliding seat and used for driving the rotary spraying drill rod to rotate.

According to the scheme, the multi-angle cement soil pile construction equipment in the tunnel directly runs into the tunnel through the high-pressure jet grouting pile machine, and the high-pressure jet grouting pile can be directly constructed in the tunnel and other holes from inside to outside to reinforce the tunnel; specifically, as the drill bit is arranged at the bottom of the jet grouting drill rod, the high-pressure jet grouting pile machine can directly drill holes by using the jet grouting drill rod, so that the high-pressure jet grouting holes are driven to drill into a set depth; and then, the rotary jet drill rod is directly utilized to carry out high-pressure jet grouting to form a high-pressure rotary jet pile, so that the two procedures of hole leading and high-pressure jet grouting in the MJS construction method are combined into one, the integrated operation of hole leading and high-pressure jet grouting is realized, and the construction efficiency is improved. More importantly, the support tower rod can rotate, so that a vertical high-pressure jet grouting pile can be constructed right below the tunnel by adjusting the jet grouting drill rod to be in a vertical state; through adjusting the jet grouting drill rod and being in the tilt state, construct the high-pressure jet grouting stake of dextrorotation below the right side in tunnel and construct the high-pressure jet grouting stake of levorotation below the left side in tunnel to carry out the reliable support and the reinforcement of multi-angle through vertical high-pressure jet grouting stake, the high-pressure jet grouting stake of dextrorotation and the high-pressure jet grouting stake of levorotation to the tunnel, the tunnel consolidates effectually.

Preferably, the rotary spraying drill rod comprises a drill body, a drill rod head arranged at the lower end of the drill body and a drill rod tail arranged at the upper end of the drill body, wherein a cement grouting port and a gas injection port are formed in the drill rod tail, the drill body comprises a plurality of sections of single-hole pipes which are sequentially connected, inner holes of the single-hole pipes form a grouting pipeline, the high-pressure rotary spraying holes are formed in the side wall of the drill rod head and are communicated with the grouting pipeline, and the drill bit is arranged at the lower end of the drill rod head. The drill body of the drill rod device adopts the single-hole pipe, the structure is simple, the manufacturing cost can be reduced, no wiring pipe hole exists in the single-hole pipe, no data line exists, and the like, so that the drill rod device can realize continuous and equidirectional rotary spraying (for example, clockwise continuous rotary spraying), and the construction efficiency is greatly improved.

Preferably, any two adjacent single-hole pipes are connected through a connecting pipe, the connecting pipe is connected with the single-hole pipe through a plug-in type connecting structure, and the plug-in type connecting structure comprises: prevent changeing connection structure, prevent changeing connection structure including coaxial setting polygon grafting pipe on the connecting tube end, set up radial spacing hole on the lateral surface of polygon grafting pipe, set up in haplopore pipe tip be used for with polygon grafting pipe complex polygon spliced eye, set up on the lateral surface of haplopore pipe and with the radial bolt hole that the polygon spliced eye is linked together and with radial bolt hole complex connecting bolt, polygon grafting pipe is inserted and is established in the polygon spliced eye, connecting bolt's tip be equipped with radial spacing hole complex reference column, connecting bolt passes through threaded connection with radial bolt hole, and the reference column on the connecting bolt inserts in the radial spacing hole. The polygonal inserting pipe of the anti-rotation connecting structure is matched with the polygonal inserting hole, so that the rotary shearing force generated in the rotary construction process of the drill rod device can be reliably borne; the connecting bolt is only used for limiting the axial movement of the single-hole pipe, and the rotary shearing force generated by the drill rod device in the rotary construction process is not required to be borne, so that the connecting structure between the single-hole pipes is stable and reliable.

Preferably, the plug-in type connection structure further comprises a sealing connection structure, the sealing connection structure comprises a sealing circular pipe arranged at the end part of the polygonal plug-in pipe and a sealing circular hole arranged at the bottom of the polygonal plug-in hole, the sealing circular pipe is inserted into the sealing circular hole, and the sealing circular pipe is in sealing connection with the sealing circular hole.

As another preferred option, the plug-in type connection structure further comprises a sealing connection structure, the sealing connection structure comprises a sealing circular tube arranged at the end part of the polygonal plug-in pipe, a floating sealing taper sleeve slidably sleeved on the sealing circular tube, an elastic piece positioned between the floating sealing taper sleeve and the end part of the polygonal plug-in pipe, and a tapered sealing hole arranged at the hole bottom of the polygonal plug-in hole, the floating sealing taper sleeve is slidably and hermetically connected with the sealing circular tube, the outer periphery of the floating sealing taper sleeve is conical, the tapered sealing hole is matched with the floating sealing taper sleeve, and the floating sealing taper sleeve is inserted in the tapered sealing hole; the radial limiting hole is a conical limiting hole, the inner diameter of the radial limiting hole is gradually reduced from the hole opening to the hole bottom, and the positioning column is a conical positioning column; in the process that the positioning column is inserted into the radial limiting hole, the floating sealing taper sleeve is driven to move towards the conical sealing hole, so that the outer wall surface of the floating sealing taper sleeve abuts against the inner wall surface of the conical sealing hole and compresses the elastic piece, and the elastic piece provides elastic force after being compressed, so that the outer wall surface of the floating sealing taper sleeve is tightly pressed on the inner wall surface of the conical sealing hole. Therefore, the pressing force is provided in the process that the positioning column is inserted into the radial limiting hole, the outer wall surface of the floating sealing taper sleeve abuts against the inner wall surface of the conical sealing hole and compresses the pressing force of the elastic piece, the elastic piece is elastically deformed to store the pressing force, the elastic piece is compressed to provide elastic force, the outer wall surface of the floating sealing taper sleeve is pressed against the inner wall surface of the conical sealing hole, and therefore the sealing connection between the floating sealing taper sleeve and the conical sealing hole is guaranteed, and the sealing connection between the connecting pipe and the single-hole pipe is guaranteed; meanwhile, the elastic deformation of the elastic piece ensures that the installation of the connecting bolt is not influenced.

Preferably, the tail part of the drill rod comprises a tail pipe body connected with the single-hole pipe at the upper end of the drill body and an input pipe sleeved on the tail pipe body, the input pipe and the tail pipe body can rotate relatively, the cement grouting port and the gas injection port are arranged on the input pipe, the input pipe is fixed on the support tower rod through a connecting piece, and the power head is used for driving the drill body of the rotary spraying drill rod to rotate.

Preferably, the rotating seat rotating executing mechanism is a first oil cylinder, and the tower rod rotating executing mechanism is a second oil cylinder.

Preferably, the running mechanism is a crawler running mechanism, a rubber wheel running mechanism or an iron wheel running mechanism suitable for running on a rail.

A tunnel reinforcing construction method sequentially comprises the following steps: