A high-pressure jetting type anchor cable inserter and its construction method
A high-pressure rotary jet and implanter technology, which is used in the installation of bolts, earthwork drilling, infrastructure engineering, etc. Fast and other problems, to achieve the effect of meeting construction specifications and design requirements, ensuring installation and grouting quality, and reducing human resource consumption
Active Publication Date: 2016-08-31
浙江中桥预应力设备有限公司
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Problems solved by technology
This patented technology has improved the installation speed and technical reliability of the anchor cable to a certain extent, but the operation is relatively cumbersome, the construction is not very convenient, and the goal of "high efficiency and rapidity" cannot be achieved.
Anchor cable installation tools such as wind-driven long anchor cable installation machines use compressed air as the power to install the anchor cable in place by means of ejector rods, etc., but the installation effect is not satisfactory, and it has not been widely used.
In addition, the existing auxiliary technologies for anchor cable installation are not suitable for the installation of new recyclable anchor cables
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[0024] The high-pressure rotary spraying type anchor cable implanter of the present invention includes a push rod 1, a rotary spraying drill rod 10, a one-way thrust ball bearing 5, a bearing seat 7, an axial nozzle 13 and a radial nozzle 18, and a tungsten steel drill bit 15; The ejector rod 1 is a stepped shaft, and the inner hole of the big end is designed with a trapezoidal thread 2, which is matched with the trapezoidal external thread of the drill pipe of the drilling rig to connect and transmit power. Symmetrical flat surface 4, external thread 8 on the outer circle of the small end of the stepped shaft and a journal 6 matching the inner hole of the one-way thrust ball bearing 5, the stepped shaft has a through axial channel 3; the rotary jet drill pipe 10 is Shaft-shaped structure, the inner hole at one end of the drill pipe is designed with an internal thread 9, which matches the external thread 8 of the ejector rod 1, and the other end of the drill pipe is designed as...
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The invention discloses a high-pressure jet grouting anchor rope inserter and a construction method thereof. The high-pressure jet grouting anchor rope inserter comprises an ejection rod and a jet grouting drill rod, wherein one end of the ejection rod is connected with a drilling machine drill rod; multiple tungsten steel drill bits and axial and radial nozzles are mounted on the jet grouting drill rod; the jet grouting drill rod is connected with the ejection rod; an inner hole of a one-way thrust ball bearing fits the outer circle of a shaft shoulder of the ejection rod; and the outer circle of a bearing fits a bearing base. A radial revolving gap is reserved between an inner hole of the bearing base and the outer circle of the ejection rod; an axial gap is reserved between the end surface and the step end surface of the ejection rod; a channel in the anchor rope inserter is communicated with the axial and radial nozzles; the high-pressure jet grouting anchor rope inserter fully uses self capacity of a drilling machine to perform the installation of an in-hole anchor rope; when the propulsion of the anchor rope is difficult due to collapse or block fall in the hole, the anchor rope inserter revolves for drilling; the axial and radial nozzles eliminate nearby chips; and the grouting is directly performed after the anchor rope is installed in placed, so that the anchor rope installation time is shortened, the human resource consumption is reduced, the grouting quality is guaranteed, and the construction specification and the design requirement can be satisfied.
Description
technical field [0001] The invention relates to a high-pressure rotary jet type anchor cable inserter and a construction method thereof, and relates to an auxiliary installation tool for anchor cable installation and grouting construction in rock and soil mass reinforcement engineering. Background technique [0002] In rock and soil reinforcement projects, the traditional installation of deep-hole multi-anchor cables is based on crowd tactics, which has the problems of high labor intensity, long construction period, and low efficiency. It is difficult to achieve the "efficient and fast" construction goal, and the anchor It is difficult to install cables in place, poor in safety and reliability, and difficult to meet construction specifications and design requirements. [0003] With the development of science and technology and the unremitting efforts of researchers in domestic institutes, some fast installation devices for anchor cables have been developed. Invention patent...
Claims
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IPC IPC(8): E02D5/74E02D15/04E21D20/02E21B17/00E21B17/042
Inventor 金国喜田志刚郑建荣赵国华
Owner 浙江中桥预应力设备有限公司