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A platform for research: civil engineering, architecture and urbanism
Anchor cable reinforcement design method for high and steep weathered cutting slope
The invention provides an anchor cable reinforcement design method for a high and steep weathered cutting slope. The method comprises the steps that S1, the thickness h of a strong weathered layer is obtained; s2, acquiring parameters gamma, c and sum of a strong weathered layer; s3, a slope design slope angle beta and anchor cable space distances Sy and Sz are given, Sy is the anchor cable horizontal distance, and Sz is the anchor cable vertical distance; s4, a correlation formula of the anchor cable anchoring force and the anchor cable inclination angle is established according to the sliding rule of the weathered slope and the anchor cable anchoring force; s5, according to the construction range [delta 1, delta 2] of the inclination angle of the anchor cable in actual engineering, and in combination with the correlation formula of the anchoring force of the anchor cable and the inclination angle of the anchor cable, the optimal design value delta < optimal > of the inclination angle of the anchor cable when the anchoring force of the anchor cable is maximum theoretically is obtained; and S6, after the dip angle of the anchor cable is determined, the sliding rule of the weathered slope is utilized again, a correlation formula of the slope safety coefficient and the anchor cable prestress is established, and the anchor cable prestress P needed when the preset safety coefficient is reached is obtained. According to the method provided by the invention, the optimal design parameters of the anchor cable can be simply and rapidly determined.
本发明提供一种高陡风化路堑边坡锚索加固设计方法，步骤包括：S1：获取强风化层厚度h；S2：获取强风化层参数γ、c和；S3：给定边坡设计坡角β，以及锚索空间间距Sy和Sz，其中Sy为锚索水平间距，Sz为锚索竖向间距；S4：利用风化边坡的滑动规律和锚索锚固力，建立锚索锚固力与锚索倾角的关联公式；S5：根据实际工程中锚索倾角的施工范围[δ1，δ2]，并结合所述锚索锚固力与锚索倾角的关联公式，获取理论上锚索锚固力最大时锚索倾角最佳设计值δoptimal；S6:在确定锚索倾角后，再次利用风化边坡的滑动规律，建立边坡安全系数与锚索预应力的关联公式，获取达到预定安全系数时所需锚索预应力P，本发明提供的方法能够简单快速地确定锚索最优设计参数。
Anchor cable reinforcement design method for high and steep weathered cutting slope
The invention provides an anchor cable reinforcement design method for a high and steep weathered cutting slope. The method comprises the steps that S1, the thickness h of a strong weathered layer is obtained; s2, acquiring parameters gamma, c and sum of a strong weathered layer; s3, a slope design slope angle beta and anchor cable space distances Sy and Sz are given, Sy is the anchor cable horizontal distance, and Sz is the anchor cable vertical distance; s4, a correlation formula of the anchor cable anchoring force and the anchor cable inclination angle is established according to the sliding rule of the weathered slope and the anchor cable anchoring force; s5, according to the construction range [delta 1, delta 2] of the inclination angle of the anchor cable in actual engineering, and in combination with the correlation formula of the anchoring force of the anchor cable and the inclination angle of the anchor cable, the optimal design value delta < optimal > of the inclination angle of the anchor cable when the anchoring force of the anchor cable is maximum theoretically is obtained; and S6, after the dip angle of the anchor cable is determined, the sliding rule of the weathered slope is utilized again, a correlation formula of the slope safety coefficient and the anchor cable prestress is established, and the anchor cable prestress P needed when the preset safety coefficient is reached is obtained. According to the method provided by the invention, the optimal design parameters of the anchor cable can be simply and rapidly determined.
本发明提供一种高陡风化路堑边坡锚索加固设计方法，步骤包括：S1：获取强风化层厚度h；S2：获取强风化层参数γ、c和；S3：给定边坡设计坡角β，以及锚索空间间距Sy和Sz，其中Sy为锚索水平间距，Sz为锚索竖向间距；S4：利用风化边坡的滑动规律和锚索锚固力，建立锚索锚固力与锚索倾角的关联公式；S5：根据实际工程中锚索倾角的施工范围[δ1，δ2]，并结合所述锚索锚固力与锚索倾角的关联公式，获取理论上锚索锚固力最大时锚索倾角最佳设计值δoptimal；S6:在确定锚索倾角后，再次利用风化边坡的滑动规律，建立边坡安全系数与锚索预应力的关联公式，获取达到预定安全系数时所需锚索预应力P，本发明提供的方法能够简单快速地确定锚索最优设计参数。
Anchor cable reinforcement design method for high and steep weathered cutting slope
一种高陡风化路堑边坡锚索加固设计方法
CAO CAIYONG (author) / YANG BIN (author) / CHEN ZEHUA (author) / LIU JUN (author) / ZENG GANG (author) / LUO JI (author) / ZHANG KECAO (author)
2023-05-02
Patent
Electronic Resource
Chinese
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