临海高等级公路1标官沉降观测方案

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1、ocusing on ways and means of improving and upgrading work, further development of three to split. (A) fully grasp no unauthorised created. The township no unauthorised created the existing building one household, one document survey and file storage work must be unconditional and full coverage. Main

2、 corridor leading to the town (road, river) village, the Central built-up area of the town on both sides must be to create a no unauthorised village. According to five hundred villages created and shanty towns, villages, old houses, reconstruction of old plant, expand create, upgrading creates files

3、, the real no unauthorised village created into the benefit of the people of very good thing. (B) to strictly manage count as unauthorised controls. Promoting the new control work to move the center of gravity, management measures to the front, and earnestly pipes effectively. A strict new unauthori

4、sed network responsibility. Sectors such as land, housing and basic stations (stations) and the Township of grid accountability mechanisms must be strictly in accordance with the new regulatory requirements, effective implementation of the area of responsibility of the new inspections, suppression,

5、demolition work to ensure that the new zero tolerance. Second, public security, water, electricity, water, oceans and fisheries, tourism collaboration, market supervision departments should strictly enforce the illegal construction of disposal of relevant provisions of the regulations, effective ful

6、filment of responsibilities, particularly in electricity and water supply, and other units may not be new illegal buildings to supply water and electricity supply. While more regulation to prevent personal privacy violations. Illicit trading in illegal construction in the Ministry of public security

7、 sector to strictly from the blow. Three is to create additional offence reporting system of incentives. According to building law and covers an area of nature, to report timely degree divided report grade, effective after the removal of certain incentives. (C) integrated implementation , building d

8、emolition, modification, use combination. Demolition is the means and purpose built is. To adhere to the building demolished, combination of construction and demolition waste, demolished with combined efforts to improve the scientific level of three to split; second, we must pay attention to three t

9、o split and five hundred and five water treatment, three of the four sides, the shackDistrict transformation, and dangerous old room transformation and two road sides, series work organic combined up, active do River, and along demolition work, and manpower advance village in the, and old residentia

10、l demolition work, to improved masses housing conditions and live environment; three to put three modified a split as traditional low, and small, and bulk industry structure transformation upgrade of important initiatives to caught, speed up advance industry Park, effective optimization park environ

11、ment临海高等级公路通州段路基桥梁施工LHTZ-LQ1合同段沉降观测方案编制:审核:批准:无锡市交通工程有限公司临海高等级公路通州段路基桥梁施工LHTZ-LQ1合同段项目经理部2011年11月9日临海高等级公路LHTZLQ1标沉降观测方案一、工程概况 临海高等级公路通州段路桥1标起点位于如东市与通州区交界处(遥望港),路线向南从一线海堤以西、环本农场以东穿越,向南利用现状S221进行拓宽改造,继续向南跨越新中港河,终点与通州段路桥2标相接。起点桩号K79+119.18,终点桩号K85+099.46,全长5.98公里。该项目作为串联沿海港口、产业园区、城镇结点的重要通道,对提升沿海地区公路覆盖

12、水平和等级标准,有力支撑临港产业、滩涂开发及生态园区建设有了非常重要的意义。本段桥梁共三座,分别为遥望港大桥、新中港桥、小桥,各桥头段及桥头过渡段均需要堆载预压,沉降量较大。二、沉降观测方案制定依据工程测量规范(GB50026 2007)建筑物变形测量规范(JGJ8 2007)岩土工程观测规范(YS5229 96)公路路基设计规范(JTG D30 2004)公路路基施工技术规范(JTG F10 2006)设计图纸三、沉降观测原则根据省市临海办的沉降观测指导意见,施工沉降观测的基本原则是及时、准确、全面反映路基及构造物的沉降和水平位移情况。通过系统连续完整的观测数据,分析路堤的沉降量,掌握控制路

13、堤的稳定性。为此,本项目部根据省市临海办的沉降观测指导意见制订如下原则:(1)在本合同段内布置的观测点要能比较准确地反映出深厚软土层的变形规律,以便指导施工;(2)应根据填土高度的变化布置不同的观测内容,对高填方路段进行重点观测;(3)应重视道路沿线结构物附近的变形,特别是桥头段、桥头过渡段、涵洞等位置要重点观测;(4)观测工作必须认真负责、确保观测精度,做到资料真实、连续、完整。 四、观测项目与内容(一)观测内容现场观测的内容包括地表沉降、地表水平位移及隆起、地下土体深层水平位移具体见表1。表1沉降和稳定性动态观测内容观测项目传感器或观测材料观测仪器观测目的备注地表沉降沉降板水准仪根据测定数

14、据调整填土速率;预测沉降趋势,确定预压卸载时间和结构物及路面施工时间;提供施工期间沉降土方量的计算依据。沿线地表水平位移及隆起边桩全站仪观测地表水平及隆起情况,以确保路堤施工的安全和稳定。高填方路段/河塘段/临河段地下土体深层水平位移测斜管测斜仪用作掌握深层位移量,推定土体剪切破坏的位置。必要时采用。河塘段采用、临河段(二)观测断面类型观测点设在观测数据容易反馈的部位:地质条件差、地形变化大的部位均应设置观测点,桥头纵向坡脚、填挖交界的填方段、沿河、临空等特殊路段酌情增设观测点;根据施工图和不同路段情况,合理设置观测断面,桥头和过渡路段设23个观测断面;沿河、临河、河塘等临空面大且稳定性差的路

15、段,必要时应进行地基土体内部水平位移的观测;测点的设置不仅要根据设计的要求,同时还应针对施工中掌握的地质、地形等情况增设。仪器、仪表的布设数量和位置应符合表2的规定。表2 仪表设定要求序号仪表名称埋设要求1沉降板埋设在路堤左、右路肩和路中心下原地面上2水平位移边桩在路堤两侧趾部、边沟外缘处设置多点3地下水平位移标(测斜管)埋至软土层地下相对硬土层中,沿测斜导管自下而上间隔50cm观测一次本合同段内观测断面类型具体可分为以下四种: (1)观测断面1观测断面1为一般的观测断面,适应于路堤填土高度在1m以下、软土层厚度较薄、路段中无结构物的情况,主要在路堤中心布置一个沉降标,如图1所示。路中沉降标图1 观测断面1 (2)观测断面2观测断面2为一般的观测断面,适应于路堤填土高度在3m以下、软土层厚度较薄、路段中无结构物的情况,主要在路堤中心和两侧布置三个沉降标,如图2所示。路中沉降标路肩沉降标路肩沉降标图2 观测断面2 (3)观测断面3当填土高度较高时,需观测路堤边坡外地表的水平位移和隆起情况,除了在路堤中布置沉降标之外,还需在路堤边坡外布置边桩,如图3所示。对于每个边桩点,一般在坡脚以外110m范围内设置 34 个位移边桩。路中沉降标路肩

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